[simulator/web] Fix window definition check

Update toolbox.en.i18n molar masses

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,14 +1,29 @@
 ---
 name: Bug report
-about: Omega is not working like it should? Let us know!
+about: Upsilon is not working like it should? Let us know!
 title: ''
-labels: Bug, Triage
+labels: 'Status: Triage, Type: Bug'
 assignees: ''
 
 ---
 
-#### Describe the bug
+**Describe the bug**
+A clear and concise description of what the bug is.
 
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
 
-#### Environment
+**Expected behavior**
- - Omega Version: {go to settings > about > Omega Version and type the version here}
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Device (please complete the following information):**
+ - The device on which you're running Upsilon (computer, n0110, n0100, etc...)
+ - Upsilon Version: [go to settings > about > Upsilon Version and type the version here]
+ - Upsilon commit: [settings > about > click one time on epsilon version]

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,10 +1,17 @@
 ---
 name: Feature request
-about: Suggest an idea for an improvement of Omega
+about: Suggest an idea for Upsilon
 title: ''
-labels: Feature, Triage
+labels: 'Status: Triage, Type: Feature'
 assignees: ''
 
 ---
 
-#### What I want to see in the next version of Omega
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/other.md

@@ -1,8 +1,8 @@
 ---
 name: Other
-about: A question? A problem? ...
+about: A question? A problem? …
 title: ''
-labels: Triage
+labels: 'Status: Triage'
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/problems-during-installation.md

@@ -1,19 +1,19 @@
 ---
 name: Problems during installation
-about: Need help to install Omega?
+about: Need help to install Upsilon?
 title: ''
-labels: Installation issue, Triage
+labels: 'Status: Triage, Type: Installation issue'
 assignees: ''
 
 ---
 
-#### Describe the problem
+**Describe the problem**
 
 
-#### Logs
+**Logs**
 ```
 Copy/paste the logs here (If you have some)
 ```
 
-#### Environment
+**Environment**
- - Omega Version: {go to settings > about > Omega Version and type the version here}
+ - Upsilon Version: {go to settings > about > Upsilon Version and type the version here}

.github/workflows/ci-workflow.yml

@@ -1,83 +1,582 @@
 name: Continuous integration
-on: [pull_request, push]
+#on: [pull_request, push]
-
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+    inputs:
+      triggerIos:
+        description: 'Run iOS tests'
+        required: true
+        default: 'yes'
+      triggerMacos:
+        description: 'Run macOS tests'
+        required: true
+        default: 'yes'
+      trigger3DS:
+        description: 'Run 3DS tests'
+        required: true
+        default: 'yes'
+      triggerFxcg:
+        description: 'Run fxcg tests'
+        required: true
+        default: 'no'
 jobs:
-  build-simulator-android:
+  fxcg: # fxcg build is broken for now, disabling it for now to avoid noise
+    if: github.event.inputs.triggerFxcg == 'yes'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v5
+        with:
+          submodules: 'recursive'
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install build-essential cmake libfreetype-dev -y
+      - name: Get latest gint commit hash
+        run: |
+          LATEST_COMMIT_HASH=$(curl --silent https://git.planet-casio.com/api/v1/repos/Lephenixnoir/gint/branches/master | jq -r .commit.id)
+          echo "Latest commit hash is: $LATEST_COMMIT_HASH"
+          echo "LATEST_COMMIT_HASH=$LATEST_COMMIT_HASH" >> $GITHUB_OUTPUT
+        id: get-latest-commit-hash
+      - name: Cache gint/fxsdk installation
+        id: cache-gint
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.local/*/*
+            !~/.local/share/containers
+          key: ${{ runner.os }}-gint-${{ steps.get-latest-commit-hash.outputs.LATEST_COMMIT_HASH }}
+      - name: Install gint/fxsdk
+        if: steps.cache-gint.outputs.cache-hit != 'true'
+        env:
+          URL: "https://git.planet-casio.com/Lephenixnoir/GiteaPC/archive/master.tar.gz"
+        run: |
+          export PATH="~/.local/bin:$PATH"
+          cd "$(mktemp -d)"
+          curl "$URL" -o giteapc-master.tar.gz
+          tar -xzf giteapc-master.tar.gz
+          cd giteapc
+          python3 giteapc.py install Lephenixnoir/GiteaPC -y
+          sudo apt-get install python3-pil libusb-1.0-0-dev libudev-dev libsdl2-dev libpng-dev libudisks2-dev libglib2.0-dev libmpfr-dev libmpc-dev libppl-dev -y
+          giteapc install Lephenixnoir/fxsdk:noudisks2 Lephenixnoir/sh-elf-binutils Lephenixnoir/sh-elf-gcc -y
+          giteapc install Lephenixnoir/OpenLibm Vhex-Kernel-Core/fxlibc Lephenixnoir/sh-elf-gcc -y
+          giteapc install Lephenixnoir/gint -y
+      - name: Add fxsdk to PATH
+        run: echo "~/.local/bin" >> $GITHUB_PATH
+      - run: make -j2 PLATFORM=simulator TARGET=fxcg
+      - id: 'auth'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/auth@v0'
+        with:
+          credentials_json: '${{secrets.GOOGLE_CREDENTIALS}}'
+      - id: 'upload-directory'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/upload-cloud-storage@v0'
+        with:
+          path: 'output/release/simulator/fxcg/epsilon.g3a'
+          destination: 'upsilon-binfiles.appspot.com/dev/simulator/'
+          parent: false
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/simulator/fxcg/epsilon.g3a binfiles/binaries/dev/simulator
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon.g3a
+          path: output/release/simulator/fxcg/epsilon.g3a
+  nintendo_3ds:
+    if: github.event.inputs.trigger3DS == 'yes' || github.event.inputs.trigger3DS == ''
+    runs-on: ubuntu-latest
+    container: devkitpro/devkitarm:latest
+    steps:
+      - uses: actions/checkout@v5
         with:
           submodules: true
-      - run: make -j2 PLATFORM=simulator TARGET=android
+      - run: sudo apt-get update
-      - uses: actions/upload-artifact@master
+      - run: sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config -y
+      - run: yes | sudo dkp-pacman -S --needed devkitARM 3dstools libctru
+      - run: wget https://github.com/3DSGuy/Project_CTR/releases/download/makerom-v0.18.3/makerom-v0.18.3-ubuntu_x86_64.zip
+      - run: unzip makerom-v0.18.3-ubuntu_x86_64.zip
+      - run: rm makerom-v0.18.3-ubuntu_x86_64.zip
+      - run: chmod +x ./makerom
+      - run: echo "PATH=.:$PATH" >> $GITHUB_ENV
+      - run: make -j2 PLATFORM=simulator TARGET=3ds
+      - run: make -j2 PLATFORM=simulator TARGET=3ds epsilon.cia
+      - uses: actions/upload-artifact@v4
         with:
-          name: epsilon-simulator-android.apk
+          name: epsilon-3ds.3dsx
-          path: output/release/simulator/android/app/outputs/apk/release/android-release-unsigned.apk
+          path: output/release/simulator/3ds/epsilon.3dsx
-  build-device-n0100:
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon-3ds.cia
+          path: output/release/simulator/3ds/epsilon.cia
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/simulator/3ds/epsilon.3dsx output/release/simulator/3ds/epsilon.cia binfiles/binaries/dev/simulator
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+  android:
     runs-on: ubuntu-latest
     steps:
-      - run: sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config
+      - uses: actions/checkout@v5
-      - uses: numworks/setup-arm-toolchain@v1
-      - uses: actions/checkout@v1
         with:
-          submodules: true
+          submodules: 'recursive'
-      - run: make -j2 MODEL=n0100 epsilon.dfu
+      - run: |
-      - run: make -j2 MODEL=n0100 epsilon.onboarding.dfu
+          sudo apt-get update
-      - run: make -j2 MODEL=n0100 epsilon.onboarding.update.dfu
+          sudo apt-get install imagemagick libfreetype-dev libpng-dev
-      - run: make -j2 MODEL=n0100 epsilon.onboarding.beta.dfu
+      - name: Set up JDK 25
-      - run: make -j2 MODEL=n0100 flasher.light.dfu
+        uses: actions/setup-java@v5
-      - run: make -j2 MODEL=n0100 flasher.verbose.dfu
-      - uses: actions/upload-artifact@master
         with:
-          name: epsilon-device-n0100.dfu
+          java-version: '25'
-          path: output/release/device/n0100/epsilon.dfu
+          distribution: 'temurin'
-      - run: make -j2 MODEL=n0100 test.elf
+      - run: wget -nv https://dl.google.com/android/repository/android-ndk-r21e-linux-x86_64.zip
-  build-device-n0110:
+      - run: unzip -q android-ndk-r21e-linux-x86_64.zip
-    runs-on: ubuntu-latest
+      - run: make -j2 PLATFORM=simulator TARGET=android NDK_PATH=./android-ndk-r21e
+      - id: 'auth'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/auth@v0'
+        with:
+          credentials_json: '${{secrets.GOOGLE_CREDENTIALS}}'
+      - id: 'upload-file'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/upload-cloud-storage@v0'
+        with:
+          path: 'output/release/simulator/android/epsilon.apk'
+          destination: 'upsilon-binfiles.appspot.com/dev/simulator/'
+          parent: false
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/simulator/android/epsilon.apk binfiles/binaries/dev/simulator
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon-android.apk
+          path: output/release/simulator/android/epsilon.apk
+  n0100:
+    runs-on: ubuntu-24.04-arm
     steps:
-      - run: sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config
+      - run: |
-      - uses: numworks/setup-arm-toolchain@v1
+          sudo apt-get update
-      - uses: actions/checkout@v1
+          sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config gcc-arm-none-eabi binutils-arm-none-eabi
+      - uses: actions/checkout@v5
         with:
-          submodules: true
+          submodules: 'recursive'
-      - run: make -j2 epsilon.dfu
+      - run: mkdir final-output
-      - run: make -j2 epsilon.onboarding.dfu
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=en output/release/device/n0100/epsilon.onboarding.two_binaries
-      - run: make -j2 epsilon.onboarding.update.dfu
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=en output/release/device/n0100/epsilon.onboarding.two_binaries
-      - run: make -j2 epsilon.onboarding.beta.dfu
+      - run: mv output/release/device/n0100/epsilon.onboarding.internal.bin final-output/epsilon.onboarding.en.internal.bin
-      - run: make -j2 flasher.light.dfu
+      - run: rm output/release/device/n0100/apps/i18n.o output/release/device/n0100/apps/i18n.cpp
-      - run: make -j2 flasher.verbose.dfu
+      # We need to duplicate make to work around i18n generator race condition in Makefile leading to inconsistent incremental rebuilds
-      - run: make -j2 bench.ram.dfu
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=fr output/release/device/n0100/epsilon.onboarding.two_binaries
-      - run: make -j2 bench.flash.dfu
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=fr output/release/device/n0100/epsilon.onboarding.two_binaries
-      - uses: actions/upload-artifact@master
+      - run: mv output/release/device/n0100/epsilon.onboarding.internal.bin final-output/epsilon.onboarding.fr.internal.bin
+      - run: rm output/release/device/n0100/apps/i18n.o output/release/device/n0100/apps/i18n.cpp
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=nl output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=nl output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: mv output/release/device/n0100/epsilon.onboarding.internal.bin final-output/epsilon.onboarding.nl.internal.bin
+      - run: rm output/release/device/n0100/apps/i18n.o output/release/device/n0100/apps/i18n.cpp
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=pt output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=pt output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: mv output/release/device/n0100/epsilon.onboarding.internal.bin final-output/epsilon.onboarding.pt.internal.bin
+      - run: rm output/release/device/n0100/apps/i18n.o output/release/device/n0100/apps/i18n.cpp
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=it output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=it output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: mv output/release/device/n0100/epsilon.onboarding.internal.bin final-output/epsilon.onboarding.it.internal.bin
+      - run: rm output/release/device/n0100/apps/i18n.o output/release/device/n0100/apps/i18n.cpp
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=de output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=de output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: mv output/release/device/n0100/epsilon.onboarding.internal.bin final-output/epsilon.onboarding.de.internal.bin
+      - run: rm output/release/device/n0100/apps/i18n.o output/release/device/n0100/apps/i18n.cpp
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=es output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=es output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: mv output/release/device/n0100/epsilon.onboarding.internal.bin final-output/epsilon.onboarding.es.internal.bin
+      - run: rm output/release/device/n0100/apps/i18n.o output/release/device/n0100/apps/i18n.cpp
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=hu output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: make -j2 MODEL=n0100 EPSILON_I18N=hu output/release/device/n0100/epsilon.onboarding.two_binaries
+      - run: mv output/release/device/n0100/epsilon.onboarding.internal.bin final-output/epsilon.onboarding.hu.internal.bin
+      - run: rm output/release/device/n0100/apps/i18n.o output/release/device/n0100/apps/i18n.cpp
+      - run: make -j2 MODEL=n0100 output/release/device/n0100/flasher.light.bin
+      - run: mv output/release/device/n0100/flasher.light.bin final-output/flasher.light.bin
+      - run: make -j2 MODEL=n0100 output/release/device/n0100/flasher.verbose.bin
+      - run: mv output/release/device/n0100/flasher.verbose.bin final-output/flasher.verbose.bin
+      - run: find final-output/ -type f -exec bash -c "shasum -a 256 -b {} > {}.sha256" \;
+      - run: tar cvfz binpack-n0100.tgz final-output/*
+      - uses: actions/upload-artifact@v4
         with:
-          name: epsilon-device-n0110.dfu
+          name: epsilon-binpack-n0100.tgz
-          path: output/release/device/n0110/epsilon.dfu
+          path: binpack-n0100.tgz
-      - run: make -j2 test.elf
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
-  build-simulator-web:
+        uses: actions/checkout@v5
-    runs-on: ubuntu-latest
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r final-output/* binfiles/binaries/dev/n100
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+  n0110:
+    runs-on: ubuntu-24.04-arm
     steps:
-      - uses: numworks/setup-emscripten@v1
+      - run: |
+          sudo apt-get update
+          sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config gcc-arm-none-eabi binutils-arm-none-eabi
+      - uses: actions/checkout@v5
         with:
-          sdk: latest-fastcomp
+          submodules: 'recursive'
-      - uses: actions/checkout@v1
+      - run: make -j2 MODEL=n0110 epsilon.dfu
+      - run: make -j2 MODEL=n0110 epsilon.onboarding.dfu
+      - run: make -j2 MODEL=n0110 epsilon.onboarding.update.dfu
+      - run: make -j2 MODEL=n0110 epsilon.onboarding.beta.dfu
+      - run: make -j2 MODEL=n0110 flasher.light.dfu
+      - run: make -j2 MODEL=n0110 flasher.verbose.dfu
+      - run: make -j2 MODEL=n0110 flasher.verbose.bin
+      - run: make -j2 MODEL=n0110 bench.ram.dfu
+      # - run: make -j2 MODEL=n0110 bench.flash.dfu
+      - run: make -j2 MODEL=n0110 binpack
+      - run: cp output/release/device/n0110/binpack-n0110-`git rev-parse HEAD | head -c 7`.tgz output/release/device/n0110/binpack-n0110.tgz
+      - run: cp output/release/device/n0110/flasher.verbose.bin output/release/device/n0110/binpack/
+      - run: cd output/release/device/n0110 && for binary in *.bin; do shasum -a 256 -b binpack/${binary} > binpack/${binary}.sha256;done
+      - run: cp output/release/device/n0110/binpack-n0110-`git rev-parse HEAD | head -c 7`.tgz output/release/device/n0110/binpack/binpack.tgz
+      - uses: actions/upload-artifact@v4
         with:
-          submodules: true
+          name: epsilon-binpack-n0110.tgz
-      - run: make -j2 PLATFORM=simulator TARGET=web
+          path: output/release/device/n0110/binpack-n0110.tgz
-      - uses: actions/upload-artifact@master
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
         with:
-          name: epsilon-simulator-web.zip
+          repository: Yaya-Cout/Upsilon-binfiles
-          path: output/release/simulator/web/epsilon.zip
+          ref: 'main'
-      - run: make -j2 PLATFORM=simulator TARGET=web test.headless.js
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
-  build-simulator-linux:
+          path: 'binfiles'
-    runs-on: ubuntu-latest
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/device/n0110/binpack/* binfiles/binaries/dev/n110
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+  bootloader:
+    runs-on: ubuntu-24.04-arm
     steps:
-      - run: sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config
+      - run: |
-      - uses: actions/checkout@v1
+          sudo apt-get update
+          sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config gcc-arm-none-eabi binutils-arm-none-eabi
+      - uses: actions/checkout@v5
         with:
-          submodules: true
+          submodules: 'recursive'
+      - run: make -j2 MODEL=n0110 bootloader
+      - run: make -j2 epsilon.A.dfu epsilon.B.dfu
+      - run: make -j2 epsilon.onboarding.A.dfu
+      - run: make -j2 epsilon.onboarding.B.dfu
+      - run: make -j2 epsilon.onboarding.update.A.dfu
+      - run: make -j2 epsilon.onboarding.update.B.dfu
+      - run: make -j2 epsilon.onboarding.beta.A.dfu
+      - run: make -j2 epsilon.onboarding.beta.B.dfu
+      - run: make -j2 binpack
+      - run: cp output/release/device/bootloader/binpack-bootloader-`git rev-parse HEAD | head -c 7`.tgz output/release/device/bootloader/binpack-bootloader.tgz
+      - run: cp output/release/device/n0110/bootloader.bin output/release/device/bootloader/binpack/
+      - run: cp output/release/device/n0110/bootloader.bin output/release/device/bootloader/
+      - run: cd output/release/device/bootloader && for binary in *.bin; do shasum -a 256 -b binpack/${binary} > binpack/${binary}.sha256;done
+      - run: cd output/release/device/bootloader && tar cvfz binpack-bootloader.tgz binpack/*
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon-binpack-bootloader.tgz
+          path: output/release/device/bootloader/binpack-bootloader.tgz
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/device/bootloader/binpack/* binfiles/binaries/dev/n110
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+  windows:
+    runs-on: windows-latest
+    defaults:
+       run:
+         shell: msys2 {0}
+    steps:
+      - uses: msys2/setup-msys2@v2
+      - uses: actions/checkout@v5
+        with:
+          submodules: 'recursive'
+      - run: pacman -S --noconfirm mingw-w64-x86_64-gcc mingw-w64-x86_64-freetype mingw-w64-x86_64-pkg-config make mingw-w64-x86_64-python3 mingw-w64-x86_64-libjpeg-turbo mingw-w64-x86_64-libpng git
       - run: make -j2 PLATFORM=simulator
-      - uses: actions/upload-artifact@master
+      - run: make -j2 PLATFORM=simulator test.exe
+      - run: cmd /c output\release\simulator\windows\test.exe --headless
+      - id: 'auth'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/auth@v0'
         with:
-          name: epsilon-simulator-linux.bin
+          credentials_json: '${{secrets.GOOGLE_CREDENTIALS}}'
+      - id: 'upload-file'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/upload-cloud-storage@v0'
+        with:
+          path: 'output/release/simulator/windows/epsilon.exe'
+          destination: 'upsilon-binfiles.appspot.com/dev/simulator/'
+          parent: false
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/simulator/windows/epsilon.exe binfiles/binaries/dev/simulator
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon-windows.exe
+          path: output/release/simulator/windows/epsilon.exe
+  web:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: numworks/setup-emscripten@master
+        with:
+          sdk: latest
+      - uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+      # Install the Linux toolchin to avoid dependancies issues, but maybe only libpng is needed
+      - run: |
+          sudo apt-get update
+          sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config libxtst-dev
+      - run: make -j2 PLATFORM=simulator TARGET=web
+      - run: make -j2 PLATFORM=simulator TARGET=web test.js
+      - run: node output/release/simulator/web/test.js --headless
+      - id: 'auth'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/auth@v0'
+        with:
+          credentials_json: '${{secrets.GOOGLE_CREDENTIALS}}'
+      - id: 'upload-file'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/upload-cloud-storage@v0'
+        with:
+          path: 'output/release/simulator/web/epsilon.js'
+          destination: 'upsilon-binfiles.appspot.com/dev/simulator/'
+          parent: false
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/simulator/web/epsilon.zip binfiles/binaries/dev/simulator
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon-web.zip
+          path: output/release/simulator/web/epsilon.zip
+  linux:
+    runs-on: ubuntu-latest
+    steps:
+      - run: |
+          sudo apt-get update
+          sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config libxtst-dev
+      - uses: actions/checkout@v5
+        with:
+          submodules: 'recursive'
+      - run: make -j2 PLATFORM=simulator
+      - run: make -j2 PLATFORM=simulator test.bin
+      - run: output/release/simulator/linux/test.bin --headless
+      - id: 'auth'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/auth@v0'
+        with:
+          credentials_json: '${{secrets.GOOGLE_CREDENTIALS}}'
+      - id: 'upload-file'
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: 'google-github-actions/upload-cloud-storage@v0'
+        with:
+          path: 'output/release/simulator/linux/epsilon.bin'
+          destination: 'upsilon-binfiles.appspot.com/dev/simulator/'
+          parent: false
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/simulator/linux/epsilon.bin binfiles/binaries/dev/simulator
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon-linux.bin
           path: output/release/simulator/linux/epsilon.bin
-      - run: make -j2 PLATFORM=simulator test.headless.bin
+  macos:
+    if: github.event.inputs.triggerMacos == 'yes' || github.event.inputs.triggerMacos == ''
+    runs-on: macOS-latest
+    steps:
+      - run: brew install python-setuptools
+      - run: brew install numworks/tap/epsilon-sdk
+      - uses: actions/checkout@v5
+        with:
+          submodules: 'recursive'
+      - run: make -j2 PLATFORM=simulator
+      - run: make -j2 PLATFORM=simulator ARCH=x86_64 test.bin
+      - run: output/release/simulator/macos/x86_64/test.bin --headless
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon-macos.zip
+          path: output/release/simulator/macos/epsilon.app
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/simulator/macos/epsilon.app binfiles/binaries/dev/simulator
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+  ios:
+    if: github.event.inputs.triggerIos == 'yes' || github.event.inputs.triggerIos == ''
+    runs-on: macos-14
+    steps:
+      - run: brew install python-setuptools
+      - run: brew install numworks/tap/epsilon-sdk
+      - uses: actions/checkout@v5
+        with:
+          submodules: 'recursive'
+      - run: make -j2 PLATFORM=simulator TARGET=ios EPSILON_TELEMETRY=0
+      - run: make -j2 PLATFORM=simulator TARGET=ios EPSILON_TELEMETRY=0 APPLE_PLATFORM=ios-simulator
+      - uses: actions/upload-artifact@v4
+        with:
+          name: epsilon-ios.ipa
+          path: output/release/simulator/ios/epsilon.ipa
+      - if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon' }}
+        uses: actions/checkout@v5
+        with:
+          repository: Yaya-Cout/Upsilon-binfiles
+          ref: 'main'
+          token:  ${{ secrets.PAT_UPSILON_BINFILES }}
+          path: 'binfiles'
+      # TODO: Handle git conflicts using rebase
+      - name: Upload binary files to website
+        if: ${{ github.event_name == 'push' && github.ref_name == 'upsilon-dev' && github.repository == 'UpsilonNumworks/Upsilon'}}
+        run: |
+          cp -r output/release/simulator/ios/epsilon.ipa binfiles/binaries/dev/simulator
+          cd binfiles
+          git add -A
+          git config --global user.email "ci@github.com"
+          git config --global user.name "GitHub Upsilon CI"
+          git pull
+          git commit -m "Update from CI"
+          git push
+
+env:
+  ACCEPT_OFFICIAL_TOS: 1

.github/workflows/metric-workflow.yml

@@ -0,0 +1,45 @@
+name: Metrics
+on: [pull_request_target]
+
+jobs:
+  binary-size:
+    runs-on: ubuntu-24.04-arm
+    steps:
+      - name: Install dependencies
+        run: sudo apt-get install build-essential imagemagick libfreetype6-dev libjpeg-dev libpng-dev pkg-config
+      - name: Install ARM toolchain
+        run: sudo apt-get install gcc-arm-none-eabi binutils-arm-none-eabi
+      - name: Checkout PR base
+        uses: actions/checkout@v5
+        with:
+          submodules: recursive
+          ref: ${{ github.event.pull_request.base.sha }}
+          path: base
+      - name: Build base
+        run: make -j2 -C base MODEL=n0110 epsilon.elf
+      - name: Checkout PR head
+        uses: actions/checkout@v5
+        with:
+          submodules: recursive
+          ref: ${{ github.event.pull_request.head.sha }}
+          path: head
+      - name: Build head
+        run: make -j2 -C head MODEL=n0110 epsilon.elf
+      - name: Retrieve binary size analysis
+        run: |
+          table="$(python3 head/build/metrics/binary_size.py base/output/release/device/n0110/epsilon.elf head/output/release/device/n0110/epsilon.elf --labels Base Head --sections .text .rodata .bss .data --custom 'Total (RAM)' .data .bss --custom 'Total (ROM)' .text .rodata .data --escape)"
+          {
+            echo 'table<<EOF'
+            echo "${table//%0A/$'\n'}"
+            echo EOF
+          } >> "$GITHUB_ENV"
+      - name: Add comment
+        uses: actions/github-script@v8
+        with:
+          script: |
+            await  github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.payload.pull_request.number,
+              body: `${{ env.table }}`,
+            });

.gitignore

@@ -2,6 +2,11 @@
 /build/artifacts/
 build/device/**/*.pyc
 epsilon.elf
+epsilon.map
 .vscode
 .DS_Store
 .gradle
+.idea/
+.vs
+.cache/
+compile_commands.json

.gitlab-ci.yml

@@ -1,26 +0,0 @@
-image: gcc
-
-stages:
-  - build
-
-job:build:
-    stage: build
-    before_script:
-        - "echo 'deb http://httpredir.debian.org/debian jessie main contrib \n deb-src http://httpredir.debian.org/debian jessie main contrib \n deb http://httpredir.debian.org/debian jessie-updates main contrib \n deb-src http://httpredir.debian.org/debian jessie-updates main contrib \n deb http://security.debian.org/ jessie/updates main contrib \n deb-src http://security.debian.org/ jessie/updates main contrib ' > /etc/apt/source.list"
-        - "apt-get update"
-        - "apt -y install build-essential git imagemagick libx11-dev libxext-dev libfreetype6-dev libpng-dev libjpeg-dev pkg-config fltk1.3-dev gcc-arm-none-eabi nodejs npm"
-        - "git submodule update --init --recursive"
-        - "git clone https://github.com/RedGl0w/omega-auto-increment"
-        - "cd omega-auto-increment"
-        - "npm i request exeq"
-        - "PrivateToken=$PrivateToken node index.js"
-        - "cd .."
-    script:
-        - make clean
-        - make MODEL=n0100 epsilon.bin
-    artifacts:
-        paths:
-            - output/release/device/n0100/epsilon.bin
-            - omega-auto-increment/version.txt
-        name: artifact:build:simulator
-        

.gitmodules

@@ -1,9 +1,6 @@
 [submodule "apps/rpn"]
 	path = apps/rpn
-	url = https://github.com/Omega-Numworks/Omega-RPN.git
+	url = https://github.com/UpsilonNumworks/Upsilon-RPN.git
-[submodule "apps/atom"]
+[submodule "apps/atomic"]
-	path = apps/atom
+	path = apps/atomic
-	url = https://github.com/Omega-Numworks/Omega-Atom.git
+	url = https://github.com/UpsilonNumworks/atomic
-[submodule "themes"]
-	path = themes
-	url = https://github.com/Omega-Numworks/Omega-Themes.git

CODE_OF_CONDUCT.md

@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at getomega.pro@gmail.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

Makefile

@@ -1,55 +1,69 @@
-include build/config.mak
+# Disable default Make rules
+.SUFFIXES:
 
-ifeq (${MODEL}, n0110)
+# Define the default recipe
-  apps_list = ${EPSILON_APPS}
+default:
+
+include build/config.mak
+include build/pimp.mak
+include build/defaults.mak
+include build/platform.$(PLATFORM).mak
+include build/toolchain.$(TOOLCHAIN).mak
+include build/variants.mak
+include build/helpers.mk
+
+ifeq (${MODEL}, n0100)
+  ifeq ($(filter reader,$(apps_list)),)
+  	$(warning reader app included, removing it on n0100. )
+  	EPSILON_APPS := $(filter-out reader,$(EPSILON_APPS))
+  endif
+  ifneq ($(words $(EPSILON_I18N)), 1)
+  	$(warning Only use 1 language on n0100, defaulting to en. )
+  	EPSILON_I18N := en
+  endif
+  ifeq ($(INCLUDE_ULAB), 1)
+    $(warning Removing uLab on n0100. )
+    INCLUDE_ULAB := 0
+  endif
+endif
+
+ifeq ($(filter reader,$(apps_list)),)
+  HAS_READER := 1
+endif
+
+# Remove the external apps for the n0100
+ifeq (${MODEL}, n0100)
+    apps_list = $(foreach i, ${EPSILON_APPS}, $(if $(filter external, $(i)),,$(i)))
 else
-  apps_list = $(foreach i, ${EPSILON_APPS}, $(if $(filter external, $(i)),,$(i)))
+    apps_list = ${EPSILON_APPS}
 endif
 
 ifdef FORCE_EXTERNAL
   apps_list = ${EPSILON_APPS}
 endif
 
-# Disable default Make rules
+ifeq ($(INCLUDE_ULAB), 1)
-.SUFFIXES:
+  SFLAGS += -DINCLUDE_ULAB
-
+endif
-object_for = $(addprefix $(BUILD_DIR)/,$(addsuffix .o,$(basename $(1))))
+
-
+ifdef HOME_DISPLAY_EXTERNALS
-# Define the default recipe
+  ifneq ($(filter external,$(apps_list)),)
-
+    SFLAGS += -DHOME_DISPLAY_EXTERNALS
-default:
+  else
-
+    $(warning HOME_DISPLAY_EXTERNALS is set but external isn't included, ignoring flag.)
-# Define a standard rule helper
+  endif
-# If passed a last parameter value of with_local_version, we also define an
-# extra rule that can build source files within the $(BUILD_DIR). This is useful
-# for rules that can be applied for intermediate objects (for example, when
-# going .png -> .cpp -> .o).
-
-define rule_label
-@ echo "$(shell printf "%-8s" $(strip $(1)))$(@:$(BUILD_DIR)/%=%)"
-endef
-
-define rule_for
-ifeq ($(strip $(5)),with_local_version)
-$(addprefix $$(BUILD_DIR)/,$(strip $(2))): $(addprefix $$(BUILD_DIR)/,$(strip $(3))) | $(if $(findstring official,${MAKECMDGOALS}),official_authorization)
-	@ echo "$(shell printf "%-8s" $(strip $(1)))$$(@:$$(BUILD_DIR)/%=%)"
-	$(Q) $(4)
 endif
-$(addprefix $$(BUILD_DIR)/,$(strip $(2))): $(strip $(3)) | $$$$(@D)/. $(if $(findstring official,${MAKECMDGOALS}),official_authorization)
-	@ echo "$(shell printf "%-8s" $(strip $(1)))$$(@:$$(BUILD_DIR)/%=%)"
-	$(Q) $(4)
-endef
 
 .PHONY: info
 info:
 	@echo "EPSILON_VERSION = $(EPSILON_VERSION)"
 	@echo "EPSILON_APPS = $(EPSILON_APPS)"
 	@echo "EPSILON_I18N = $(EPSILON_I18N)"
-	@echo "OMEGA_THEME = $(OMEGA_THEME)"
+	@echo "THEME_NAME = $(THEME_NAME)"
+	@echo "THEME_REPO = $(THEME_REPO)"
 	@echo "BUILD_DIR = $(BUILD_DIR)"
 	@echo "PLATFORM" = $(PLATFORM)
 	@echo "DEBUG" = $(DEBUG)
-	@echo "LEDS_CHOICE" = $(LEDS_CHOICE)
 	@echo "EPSILON_GETOPT" = $(EPSILON_GETOPT)
 	@echo "ESCHER_LOG_EVENTS_BINARY" = $(ESCHER_LOG_EVENTS_BINARY)
 	@echo "QUIZ_USE_CONSOLE" = $(QUIZ_USE_CONSOLE)
@@ -78,6 +92,8 @@ help:
 	@echo "  make PLATFORM=simulator TARGET=macos"
 	@echo "  make PLATFORM=simulator TARGET=web"
 	@echo "  make PLATFORM=simulator TARGET=windows"
+	@echo "  make PLATFORM=simulator TARGET=3ds"
+	@echo "  make PLATFORM=simulator TARGET=fxcg"
 
 .PHONY: doc
 doc:
@@ -91,7 +107,7 @@ print-%:
 	@echo $*\'s origin is $(origin $*)
 
 # Since we're building out-of-tree, we need to make sure the output directories
-# are created, otherwise the receipes will fail (e.g. gcc will fail to create
+# are created, otherwise the recipes will fail (e.g. gcc will fail to create
 # "output/foo/bar.o" because the directory "output/foo" doesn't exist).
 # We need to mark those directories as precious, otherwise Make will try to get
 # rid of them upon completion (and fail, since those folders won't be empty).
@@ -107,9 +123,12 @@ $(BUILD_DIR)%/.:
 # Each sub-Makefile can either add sources to $(%_src) variables or define a
 # new executable target. The $(%_src) variables list the sources that can be
 # built and linked to executables being generated.
-
+ifndef USE_LIBA
+  $(error platform.mak should define USE_LIBA)
+endif
 ifeq ($(USE_LIBA),0)
 include liba/Makefile.bridge
+include libaxx/Makefile.bridge
 else
 SFLAGS += -ffreestanding -nostdinc -nostdlib
 include liba/Makefile
@@ -121,15 +140,16 @@ include poincare/Makefile
 include python/Makefile
 include escher/Makefile
 # Executable Makefiles
+include bootloader/Makefile
 include apps/Makefile
 include build/struct_layout/Makefile
 include build/scenario/Makefile
 include quiz/Makefile # Quiz needs to be included at the end
 
-all_src = $(apps_all_src) $(escher_src) $(ion_all_src) $(kandinsky_src) $(liba_src) $(libaxx_src) $(poincare_src) $(python_src) $(runner_src) $(ion_target_device_flasher_light_src) $(ion_target_device_flasher_verbose_src) $(ion_target_device_bench_src) $(tests_src)
+all_src = $(apps_src) $(escher_src) $(ion_src) $(kandinsky_src) $(liba_src) $(libaxx_src) $(poincare_src) $(python_src) $(runner_src) $(ion_device_flasher_src) $(ion_device_bench_src) $(tests_src)
 # Make palette.h a dep for every source-file.
 # This ensures that the theming engine works correctly.
-$(call object_for,$(all_app_src)): $(BUILD_DIR)/escher/palette.h
+$(call object_for,$(all_src)): $(BUILD_DIR)/escher/palette.h $(BUILD_DIR)/apps/i18n.h
 
 all_objs = $(call object_for,$(all_src))
 .SECONDARY: $(all_objs)
@@ -144,8 +164,7 @@ all_objs = $(call object_for,$(all_src))
 include build/targets.mak
 
 # Fill in the default recipe
-DEFAULT ?= $(BUILD_DIR)/epsilon.$(EXE)
+default: $(firstword $(HANDY_TARGETS)).$(firstword $(HANDY_TARGETS_EXTENSIONS))
-default: $(DEFAULT)
 
 # Load standard build rules
 include build/rules.mk
@@ -185,7 +204,7 @@ cleanandcompile:
 .PHONY: start
 start:
 	@echo "INFO Starting output/$(BUILD_TYPE)/simulator/$(HOST)/epsilon.$(EXE)"
-	@$(Q) output/$(BUILD_TYPE)/simulator/$(HOST)/epsilon.$(EXE)
+	@$(Q) output/$(BUILD_TYPE)/simulator/$(HOST)/epsilon.$(EXE) -v
 
 .PHONY: clean_run
 clean_run: cleanandcompile
@@ -194,3 +213,13 @@ clean_run: cleanandcompile
 .PHONY: run
 run: compile
 	${MAKE} start
+
+.PHONY: translations
+translations:
+	@echo "TRANSLATIONS"
+	$(Q) ${PYTHON} build/utilities/translate.py
+
+.PHONY: translations_clean
+translations_clean:
+	@echo "TRANSLATIONS CLEAN"
+	$(Q) ${PYTHON} build/utilities/translations_clean.py

README.fr.md

@@ -0,0 +1,507 @@
+<p align="center"><img src="https://github.com/Laporte12974/UpsilonDesign/blob/89a15953ae128aef8aa7d066dcaaf8d5c70f02a5/UPSILogo.png" /></p>
+
+<p align="center">
+  <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="cc by-nc-sa 4.0" src="https://img.shields.io/badge/License-CC%20BY--NC--SA%204.0-525252.svg?labelColor=292929&logo=creative%20commons&style=for-the-badge" /></a>
+  <a href="https://github.com/UpsilonNumworks/Upsilon/issues"><img alt="Issues" src="https://img.shields.io/github/issues/Lauryy06/Upsilon.svg?labelColor=292929&logo=git&style=for-the-badge" /></a>
+  <br/>
+  <a href="https://discord.gg/sbGvhWETAd"><img alt="Discord" src="https://img.shields.io/discord/663420259851567114?color=blue&labelColor=292929&label=chat%20-%20discord&logo=discord&style=for-the-badge" /></a>
+</p>
+
+> Don't understand French ? Speak English ? here's the [english README](./README.md) !
+
+## À propos
+
+Upsilon est un fork d'Omega, un fork d'Epsilon, l'OS de NumWorks tournant sur les calculatrices du même nom, qui apporte beaucoup de fonctionnalités en plus, mais qui fut archivé et fermé pour des raisons légales après un changement de politique de NumWorks. Upsilon est fait pour ceux qui aimeraient voir un futur pour les OS créés par les utilisateurs pour NumWorks, même après l'arrêt du projet initial.
+
+### Quelques fonctionnalités supplémentaires
+
+- Un module Python Kandinsky amélioré
+- Un support pour fonds d'écrans personnalisés
+- Des applications externes
+- Un thème Upsilon
+- La surcharge des opérateurs en Python
+- Un tableau périodique légèrement amélioré
+- L'utilisation possible du signe "=" dans les calculs
+- *Ainsi que tout ce qui a été ajouté sur Omega, et bien plus...* [Changelogs complets d'Omega](https://github.com/Omega-Numworks/Omega/wiki/Changelog) | [Fonctionnalités principales d'Omega & captures d'écran](https://github.com/Omega-Numworks/Omega/wiki/Main-features).
+
+## Installation
+
+### Site web
+
+Rendez-vous sur le [site d'Upsilon](https://getupsilon.web.app/) à la section "Installer".
+Si votre calculatrice est reconnue, qu'elle contient une version d'Epsilon inférieure à 16 et que votre navigateur accepte WebUSB, la page vous proposera d'installer Upsilon.
+Ne débranchez votre calculatrice qu'une fois l'installation terminée.
+
+### Manuelle
+
+ *Vous pouvez vous référer à ce [site internet](https://www.numworks.com/resources/engineering/software/build/) pour la première étape si vous avez des erreurs*
+
+### 1. Installation du SDK
+
+<br>
+
+<details>
+
+<summary><b>1.1 Linux</b></summary>
+
+<br>
+
+<details>
+
+<summary>Debian ou Ubuntu</summary>
+
+<br>
+
+Il suffit juste d'installer les dépendances en tapant ces commandes dans un terminal en mode super-utilisateur.
+
+```bash
+apt-get install build-essential git imagemagick libx11-dev libxext-dev libfreetype6-dev libpng-dev libjpeg-dev pkg-config gcc-arm-none-eabi binutils-arm-none-eabi
+```
+
+C'est fait ! Vous pouvez aller à l'étape 2.
+
+<br>
+
+</details>
+
+<details>
+
+<summary>Fedora</summary>
+
+<br>
+
+Installez toutes les dépendances grâce à cette commande :
+
+```bash
+dnf install make automake gcc gcc-c++ kernel-devel git ImageMagick libX11-devel libXext-devel freetype-devel libpng-devel libjpeg-devel pkg-config arm-none-eabi-gcc-cs arm-none-eabi-gcc-cs-c++
+```
+
+<br>
+
+</details>
+
+<details>
+
+<summary>Nix/Nixos</summary>
+
+<br>
+
+Installez toutes les dépendances grâce à cette commande :
+```bash
+nix-env -p gcc libpng libjpeg xorg.libX11 pkg-config freetype xorg.libXext python3 imagemagick python310Packages.lz4 python310Packages.pypng python310Packages.pypng gcc-arm-embedded
+```
+
+<br>
+
+</details>
+
+</details>
+
+<details>
+
+<summary><b>1.2 Mac</b></summary>
+
+<br>
+
+Il est recommandé d'utiliser [Homebrew](https://brew.sh/). Une fois installé, utilisez :
+
+```bash
+brew install numworks/tap/epsilon-sdk
+```
+
+Et toutes les dépendances seront installées.
+
+<br>
+
+Vous pouvez aller à l'étape 2.
+
+<br>
+
+</details>
+
+<details>
+
+<summary><b>1.3 Windows</b></summary>
+
+[Git](http://git-scm.com) doit être installé.
+
+<br>
+
+<details>
+
+<summary>Avec Msys2/Mingw (Supportés par NumWorks bien qu'il y ait beaucoup de bugs)</summary>
+
+L'environnement de compilation [Msys2](https://www.msys2.org/) est recommandé par NumWorks pour obtenir la plupart des outils requis facilement. C'est ici que vous allez copier-coller toutes les commandes de ce tutoriel. Une fois installé, copiez-collez ces deux commandes dans le terminal:
+
+```bash
+pacman -S mingw-w64-x86_64-gcc mingw-w64-x86_64-freetype mingw-w64-x86_64-pkg-config mingw-w64-x86_64-libusb git make python
+echo "export PATH=/mingw64/bin:$PATH" >> .bashrc
+```
+
+Ensuite, vous devrez installer [GCC toolchain for ARM](https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads). Quand il vous est demandé de choisir un dossier d'installation, choisissez `C:\msys64\home\User\gcc-arm\`. Il vous faudra ensuite ajouter ce dossier à votre $PATH. Tapez juste:
+
+```bash
+echo "export PATH=$PATH:$HOME/gcc-arm/bin" >> .bashrc
+```
+
+Redémarrez votre terminal et vous pouvez aller à l'étape 2!
+
+</details>
+
+<details>
+
+<summary>Avec WSL 2</summary>
+
+WSL est un système qui virtualise un environnement GNU/Linux dans Windows.
+
+Votre version de Windows doit être >= 1903.
+
+#### Installation de WSL
+
+1. Apuyez simultanément sur les touches "Windows" et "X" puis cliquez sur "PowerShell Administrateur". Entrez ensuite ceci dans la nouvelle fenêtre:
+
+```powershell
+dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart
+```
+
+Cette commande active WSL
+
+```powershell
+dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart
+```
+
+Cette commande permet d'autoriser le démarrage des machines signées par Microsoft.
+
+2. Redémarrez votre ordinateur.
+
+3. Téléchargez [ce fichier](https://wslstorestorage.blob.core.windows.net/wslblob/wsl_update_x64.msi) et suivez les instructions d'installation.
+
+4. Ouvrez votre fenêtre PowerShell comme avant et tapez:
+
+```powershell
+wsl --set-default-version 2
+```
+
+5. Téléchargez [Ubuntu](https://www.microsoft.com/store/apps/9n6svws3rx71) depuis le Microsoft store. Vous pouvez aussi installer [Debian](https://www.microsoft.com/store/productI9MSVKQC78PK6) à la place.
+
+WSL est maintenant installé.
+
+6. Installez maintenant la version pour ARM de GCC.
+
+```bash
+sudo apt-get update
+sudo apt-get install build-essential git imagemagick libx11-dev libxext-dev libfreetype6-dev libpng-dev libjpeg-dev pkg-config gcc-arm-none-eabi binutils-arm-none-eabi
+```
+
+### Installation d'usbipd pour connecter la calculatrice à WSL (facultatif)
+
+Pour connecter la calculatrice, il faut installer cet [outil](hthttps://github.com/dorssel/usbipd-win/releases/download/v5.0.0/usbipd-win_5.0.0_x64.msi). Il permet de connecter des périphériques par Internet. Suivez les instructions pour l'installer.
+
+#### Ubuntu
+
+1. Dans un terminal WSL Ubuntu, tapez :
+
+```bash
+sudo apt install linux-tools-generic hwdata
+```
+
+<!-- 2. Editez /etc/sudoers pour que l'on puisse utiliser la commande usbip. Sur Ubuntu, cela est fait de cette manière :
+
+```bash
+sudo visudo
+```
+
+3. Ajoutez `/usr/lib/linux-tools/5.4.0-77-generic` au début du secure_path. Après édition, la ligne devrait ressembler à:
+`Defaults secure_path="/usr/lib/linux-tools/5.4.0-77-generic:/usr/local/sbin:..."` -->
+
+#### Debian
+
+1.Si vous utilisez Debian, lancez cette commande:
+
+```bash
+sudo apt install usbip hwdata usbutils
+```
+
+### Pour connecter la calculatrice à WSL
+
+1. Ouvrez à nouveau un PowerShell en mode administrateur et tapez :
+
+```powershell
+usbipd list
+```
+
+Ceci va lister les périphériques USB connectés à l'ordinateur. Regardez le BUSID de votre "Numworks Calculator".
+
+2. Maintenant, lancez cette commande en remplaçant <BUSID> par celui de votre calculatrice :
+
+```powershell
+usbipd bind --busid <BUSID>
+usbipd attach --wsl --busid <BUSID>
+```
+
+Le mot de passe de votre machine WSL vous sera demandé.
+
+Vous pouvez aller à l'étape 2.
+
+</details>
+
+</details>
+
+<br>
+
+### 2. Récupérer le code source
+
+Le code source est disponible dans une repository git. Récupérez-le de cette manière :
+
+```bash
+git clone --recursive https://github.com/UpsilonNumworks/Upsilon.git
+cd Upsilon
+git checkout upsilon-dev
+```
+
+<br>
+
+### 3. Choisissez le système à compiler
+
+<details>
+
+<summary><b>Model n0100</b></summary>
+
+(note: vous pouvez changer l'argument `EPSILON_I18N=en` avec `fr`, `nl`, `pt`, `it`, `de`, `es` or `hu`).
+
+```bash
+make MODEL=n0100 clean
+make MODEL=n0100 EPSILON_I18N=en OMEGA_USERNAME="{Votre nom, maximum 15 caractères}" -j4
+```
+
+Maintenant, lancez soit:
+
+```bash
+make MODEL=n0100 epsilon_flash
+```
+
+pour directement flasher la calculatrice après avoir appuyé simultanément sur `reset` et `6` et avoir branché la calculatrice à l'ordinateur.
+
+<br>
+
+soit:
+
+```bash
+make MODEL=n0100 OMEGA_USERNAME="" binpack -j4
+```
+
+pour compiler les binpacks que vous pouvez distribuer et flasher depuis le [WebDFU de TI-Planet](https://ti-planet.github.io/webdfu_numworks/n0100/).
+
+</details>
+
+<details>
+
+<summary><b>Model n0110</b></summary>
+
+Le bootloader vous permet d'installer 2 firmwares dans des "slots" séparés. Dans ce cas les applications externes ne pourront pas utiliser toute la mémoire mais la moitié. Si un seul slot est utilisé, le bootloader permettra d'utiliser toute la mémoire. Sans bootloader, les apps externes peuvent utiliser toute la mémoire.
+
+<details>
+<summary>Bootloader</summary>
+
+Votre calculatrice doit être flashé avec le bootloader d'[Upsilon](https://getupsilon.web.app) ou d'[Omega](https://getomega.dev).
+Compilez avec:
+
+```bash
+make clean
+make OMEGA_USERNAME="{Votre nom, max 15 caractères}" -j4
+```
+
+Ensuite lancez soit:
+
+```bash
+make epsilon.A_flash
+```
+
+pour flasher le slot actuel ou pour flasher par le flasher du booloader avec RESET, puis 4 (flash) et 1 (flash slots) pour flasher n'importe quel slot.
+
+<br>
+
+soit:
+
+```bash
+make OMEGA_USERNAME="{Votre nom, max 15 caractères}" binpack -j4
+```
+
+pour compiler les binpacks que vous pouvez distribuer et flasher depuis le [WebDFU de TI-Planet](https://ti-planet.github.io/webdfu_numworks/n0100/). Vous les trouverez dans `output/release/device/bootloader/`.
+</details>
+
+
+<details>
+
+<summary>Model n0110 sans bootloader (obsolète, utilisez le bootloader à la place pour la protection contre Epsilon)</summary>
+Compilez avec:
+
+```bash
+make MODEL=n0110 clean
+make MODEL=n0110 OMEGA_USERNAME="{Votre nom, max 15 caractères}" -j4
+```
+
+Ensuite lancez soit:
+
+```bash
+make MODEL=n0110 epsilon_flash
+```
+
+pour directement flasher la calculatrice après avoir appuyé simultanément sur `RESET` et `6` et avoir branché la calculatrice à l'ordinateur.
+<br>
+
+soit:
+
+```bash
+make MODEL=n0110 OMEGA_USERNAME="{Votre nom, max 15 caractères}" binpack -j4
+```
+
+pour compiler les binpacks que vous pouvez distribuer et flasher depuis le [WebDFU de TI-Planet](https://ti-planet.github.io/webdfu_numworks/n0100/). Vous les trouverez dans `output/release/device/n0110/`.
+</details>
+
+</details>
+
+
+<details>
+
+<summary><b>Simulateur Natif</b></summary>
+
+Lancez cette commande:
+```bash
+make clean
+```
+Vous pouvez soit choisir d'utiliser la commmande qui détectera automatiquement votre plateforme:
+```bash
+make PLATFORM=simulator
+```
+Ou choisir une commande qui correspond à votre plateforme:
+```bash
+make PLATFORM=simulator TARGET=android
+make PLATFORM=simulator TARGET=ios
+make PLATFORM=simulator TARGET=macos
+make PLATFORM=simulator TARGET=web
+make PLATFORM=simulator TARGET=windows
+make PLATFORM=simulator TARGET=3ds
+```
+
+Vous trouverez les fichiers du simulateur dans `output/release/simulator/`.
+
+</details>
+
+
+<details>
+
+<summary><b>Simulateur web</b></summary>
+
+D'abord, installez emsdk :
+
+```bash
+git clone https://github.com/emscripten-core/emsdk.git
+cd emsdk
+./emsdk install 1.40.1
+./emsdk activate 1.40.1
+source emsdk_env.sh
+```
+
+Puis, compilez Upsilon :
+
+```bash
+make clean
+make PLATFORM=simulator TARGET=web OMEGA_USERNAME="{Votre nom, maximum 15 caractères}" -j4
+```
+
+Le simulateur se trouve dans `output/release/simulator/web/simulator.zip`
+
+</details>
+
+<details>
+
+<summary><b>Simulateur Android</b></summary>
+
+Assurez-vous d'avoir JDK 25 d'installé.
+Ensuite, téléchargez la toolchain Android version r21e comme suit :
+```
+export ANDROID_HOME=$PWD/android-sdk
+wget -nv https://gitlab.com/fdroid/sdkmanager/-/raw/master/sdkmanager.py
+python3 sdkmanager.py --licenses
+python3 sdkmanager.py --install "ndk-bundle;r21e"
+```
+Il ne vous reste plus qu'à lancer cette commande pour compiler Upsilon.
+```
+make -j$(nproc) PLATFORM=simulator TARGET=android
+```
+Le fichier compilé nommé `epsilon.apk` sera celui à installer sur le téléphone depuis votre gestionnaire de fichier. Fonctionne normalement à partir de Android 4.
+
+</details>
+
+<details>
+
+<summary><b>Simulateur pour 3DS</b></summary>
+
+Il vous faut devkitPro et devkitARM installés et dans votre path (les instructions sont [ici](https://devkitpro.org/wiki/Getting_Started))
+
+```bash
+git clone --recursive https://github.com/UpsilonNumworks/Upsilon.git
+cd Upsilon
+git checkout --recursive upsilon-dev
+make PLATFORM=simulator TARGET=3ds -j
+```
+
+Vous pouvez ensuite mettre epsilon.3dsx sur une carte SD pour le lancer depuis le HBC ou utilisez 3dslink pour le lancer via le réseau:
+
+```bash
+3dslink output/release/simulator/3ds/epsilon.3dsx -a <3DS' IP ADDRESS>
+```
+
+</details>
+
+<br>
+
+Important: n'oubliez pas l'argument `--recursive` parce qu'Upsilon dépend de submodules.
+Aussi, vous pouvez changer le nombre de processus de compilation en parallèles en changeant le nombre après l'argument `-j`.
+N'oubliez pas de mettre votre nom à la place `{Votre nom, maximum 15 caractères}`. Si vous n'en voulez pas, enlevez l'argument `OMEGA_USERNAME`.
+
+Si vous avez besoin d'aide, n'hésitez pas à rejoindre notre serveur Discord : <https://discord.gg/Q9buEMduXG>
+
+<a href="https://discord.gg/Q9buEMduXG"><p align="center"><img alt="Omega Banner Discord" src="https://user-images.githubusercontent.com/12123721/86287349-54ef5800-bbe8-11ea-80c1-34eb1f93eebd.png" /></p></a>
+---
+
+## Liens utiles
+
+- [Upsilon-External (pour installer des applications supplémentaires et des fonds d'écran)](https://upsilonnumworks.github.io/Upsilon-External/)
+- [Documentation d'Ulab](https://micropython-ulab.readthedocs.io/en/latest/)
+
+## Contribution
+
+Pour contribuer, merci de lire le [Wiki d'Omega](https://github.com/Omega-Numworks/Omega/wiki/Contributing), les mêmes règles s'appliquent ici.
+
+## Les autres projets
+
+Les anciens projets d'Omega, avant sa fermeture, qui ont été utilisés pour ce projet
+
+- [Omega Themes](https://github.com/Omega-Numworks/Omega-Themes)
+- [Omega Website](https://github.com/Omega-Numworks/Omega-Website)
+- [Omega RPN `APP`](https://github.com/Omega-Numworks/Omega-RPN)
+- [Omega Atomic `APP`](https://github.com/Omega-Numworks/Omega-Atomic)
+- [Omega Design](https://github.com/Omega-Numworks/Omega-Design)
+- [Omega Discord Bot](https://github.com/Omega-Numworks/Omega-Discord-Bot)
+- [Omega App Template `BETA`](https://github.com/Omega-Numworks/Omega-App-Template)
+- [External Apps](https://github.com/Omega-Numworks/External-Apps)
+
+## À propos d'Epsilon
+
+Upsilon est un fork d'Omega, visant a continuer le projet des OS utilisateurs pour NumWorks.
+
+Omega est un fork d'Epsilon, un système d'exploitation performant pour calculatrices graphiques. Il inclut huit applications pour les mathématiques de lycée et d'études supérieures.
+
+Vous pouvez essayer Epsilon depuis votre navigateur sur le [simulateur en ligne](https://www.numworks.com/simulator/).
+
+## Licence
+
+NumWorks est une marque déposée de NumWorks SAS, 24 Rue Godot de Mauroy, 75009 Paris, France.
+Nintendo et Nintendo 3DS sont des marques déposées de Nintendo of America Inc, 4600 150th Ave NE, Redmond, WA 98052, Etats-Unis.
+NumWorks SAS et Nintendo of America Inc ne sont en aucun cas associés avec ce projet.
+
+- NumWorks Epsilon est disponible sous [licence CC BY-NC-SA](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.fr).
+- Omega est disponible sous [licence CC BY-NC-SA](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.fr).
+- Upsilon est disponible sous [licence CC BY-NC-SA](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.fr).

README.md

@@ -1,151 +1,532 @@
-<p align="center"><img src="https://github.com/Omega-Numworks/Omega-Design/blob/master/Omega-Banner.png" /></p>
+<p align="center"><img src="https://github.com/Laporte12974/UpsilonDesign/blob/89a15953ae128aef8aa7d066dcaaf8d5c70f02a5/UPSILogo.png" /></p>
 
 <p align="center">
   <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="cc by-nc-sa 4.0" src="https://img.shields.io/badge/License-CC%20BY--NC--SA%204.0-525252.svg?labelColor=292929&logo=creative%20commons&style=for-the-badge" /></a>
-  <a href="https://github.com/Omega-Numworks/Omega/issues"><img alt="Issues" src="https://img.shields.io/github/issues/Omega-Numworks/Omega.svg?labelColor=292929&logo=git&style=for-the-badge" /></a>
+  <a href="https://github.com/UpsilonNumworks/Upsilon/issues"><img alt="Issues" src="https://img.shields.io/github/issues/UpsilonNumworks/Upsilon.svg?labelColor=292929&logo=git&style=for-the-badge" /></a>
   <br/>
-  <a href="https://discord.gg/hjH3gtd"><img alt="Discord" src="https://img.shields.io/discord/663420259851567114?color=blue&labelColor=292929&label=chat%20-%20discord&logo=discord&style=for-the-badge" /></a>
+  <a href="https://discord.gg/hnEqPzAJzn"><img alt="Discord" src="https://img.shields.io/discord/663420259851567114?color=blue&labelColor=292929&label=chat%20-%20discord&logo=discord&style=for-the-badge" /></a>
 </p>
 
+> 🇫🇷 Vous ne comprenez pas l'anglais ? Vous êtes francophone ? Regardez le [*LISEZ-MOI* français](./README.fr.md) ! 🇫🇷
+
 ## About
 
-Omega is a fork of Numworks' Epsilon, the OS that runs on their calculator, which brings many features to it. Omega is for the people who want to add features to the calculator, but cannot because they have been rejected by Numworks (for reasons that are 100% understandable!).
+Upsilon is a fork of Omega, an user-made OS that runs on the NumWorks calculator, which brings many features to it, but was discontinued because of a policy change from NumWorks. Upsilon is for the people who want to see a future for user-made OSes for NumWorks, even after the closure and archiving of Omega.
 
-## Some new features
+### Some new features
-- Adding symbolic calculation back into the calculator
-- An app for RPN
-- A periodic table app + all of the molar masses for the elements in the toolbox
-- More steps for brightness (16 instead of 5)
-- ~~32 KB Python heap instead of 16 KB~~ Now available on Epsilon `>=13.2.0`!
-- And more...
 
-The main new features are listed [here](https://github.com/Omega-Numworks/Omega/wiki/Main-features), and the complete changelog can be found [here](https://github.com/quentinguidee/Omega/wiki/Complete-changelog).
+- Enhancements for the Kandinsky python module
+- Support for wallpapers
+- External apps
+- A custom theme
+- Operator overload for python
+- Improvements for the Periodic table application
+- *And everything that has been added to Omega before its termination!* [See Omega's changelog here](https://github.com/Omega-Numworks/Omega/wiki/Changelog) | [Main Omega features + screenshots](https://github.com/Omega-Numworks/Omega/wiki/Main-features).
+
+<br>
 
 ## Installation
 
-First of all, follow **step 1** [here](https://www.numworks.com/resources/engineering/software/build/). Then:
+### Installer
+
+Go to the [Upsilon website](https://getupsilon.web.app/) to the "Install" section.
+If your calculator is recognized, contains a version of Epsilon lower than 16 and your browser accepts WebUSB, the page will suggest you to install Upsilon.
+Do not disconnect your calculator until the installation is complete.
+
+### Manual
+
+ *You can refer to this [website](https://www.numworks.com/resources/engineering/software/build/) for the first step if you get errors.*
+
+### 1. Install SDK
+
+<br>
 
 <details>
-  <summary><b>Model n0100</b></summary>
+
+<summary><b>1.1 Linux</b></summary>
+
+<br>
+
+<details>
+
+<summary>Debian or Ubuntu</summary>
+
+<br>
+
+You just have to install dependencies by running these command with superuser privileges in a Terminal:
+
+```bash
+apt-get install build-essential git imagemagick libx11-dev libxext-dev libfreetype6-dev libpng-dev libjpeg-dev pkg-config gcc-arm-none-eabi binutils-arm-none-eabi
+```
+
+And there you can go to step 2!
+
+<br>
+
+</details>
+
+<details>
+
+<summary>Fedora</summary>
+
+<br>
+
+To install all dependencies:
+
+```bash
+dnf install make automake gcc gcc-c++ kernel-devel git ImageMagick libX11-devel libXext-devel freetype-devel libpng-devel libjpeg-devel pkg-config arm-none-eabi-gcc-cs arm-none-eabi-gcc-cs-c++
+```
+
+<br>
+
+</details>
+
+<details>
+
+<summary>Nix or Nixos</summary>
+
+<br>
+
+To install all dependencies:
+
+```bash
+nix-shell -p gcc libpng libjpeg xorg.libX11 pkg-config freetype xorg.libXext python3 imagemagick python310Packages.lz4 python310Packages.pypng python310Packages.pypng gcc-arm-embedded
+```
+
+<br>
+
+</details>
+
+<br>
+
+</details>
+
+<details>
+
+<summary><b>1.2 Mac</b></summary>
+
+<br>
+
+It's recommended to use [Homebrew](https://brew.sh/). Once it's installed, just run:
+
+```bash
+brew install numworks/tap/epsilon-sdk
+```
+
+and it will install all dependencies.
+
+<br>
+
+And there you can go to step 2!
+
+<br>
+
+</details>
+
+<details>
+
+<summary><b>1.3 Windows</b></summary>
+
+<br>
+
+<details>
+
+<summary>With Msys2/Mingw (officialized by NumWorks but with a lot of bugs)</summary>
+
+[Msys2](https://www.msys2.org/) environment is recommended by NumWorks to get most of the required tools on Windows easily. It's where you'll paste all the commands of this tutorial. Once it's installed, paste these commands into the Msys2 terminal.
+
+```bash
+pacman -S mingw-w64-x86_64-gcc mingw-w64-x86_64-freetype mingw-w64-x86_64-pkg-config mingw-w64-x86_64-libusb git make python
+echo "export PATH=/mingw64/bin:$PATH" >> .bashrc
+```
+
+Next, you'll need to install the [GCC toolchain for ARM](https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads). When prompted for an install location, choose `C:\msys64\home\User\gcc-arm\`. You'll then need to add this folder to your $PATH. Just enter:
+
+```bash
+echo "export PATH=$PATH:$HOME/gcc-arm/bin" >> .bashrc
+```
+
+Just restart terminal and you can go to step 2!
+
+</details>
+
+<details>
+
+<summary>With WSL 2</summary>
+
+You need a Windows version >= 1903.
+
+#### WSL Installation
+
+1. Use simultaneously Win + X keys and then click on "admin powershell".
+
+```powershell
+dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart
+```
+
+This command activate WSL functionalities.
+
+```powershell
+dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart
+```
+
+This one allows virtual machines developed by Microsoft.
+
+2. Restart your computer.
+
+3. Download [this file](https://wslstorestorage.blob.core.windows.net/wslblob/wsl_update_x64.msi) and follow instructions.
+
+4. Now open powershell admin like before and type:
+
+```powershell
+wsl --set-default-version 2
+```
+
+5. Download [Ubuntu](https://www.microsoft.com/store/apps/9n6svws3rx71) from Microsoft store.
+
+WSL is now installed.
+
+6. Then Install GCC cross compiler for ARM. In your Ubuntu teminal, run:
+<!-- TODO: Test if `wsl --install` works better, and if WSL2 has not became the
+default -->
+
+```bash
+sudo apt-get update
+sudo apt-get install build-essential git imagemagick libx11-dev libxext-dev libfreetype6-dev libpng-dev libjpeg-dev pkg-config gcc-arm-none-eabi binutils-arm-none-eabi
+```
+
+### Usbipd installation to connect your calculator
+
+If you want to connect to the calculator, you have to connect to install this
+[tool](https://github.com/dorssel/usbipd-win/releases/download/v5.0.0/usbipd-win_5.0.0_x64.msi).
+This will allow you to connect WSL to the calculator through internet. Follow
+the on screen information to install.
+
+#### Ubuntu
+
+1. In a WSL Ubuntu command prompt, type:
+
+```bash
+sudo apt install linux-tools-generic hwdata
+```
+
+<!-- 2. Edit /etc/sudoers so that root can find the usbip command. On Ubuntu, run this command.
+
+```bash
+sudo visudo
+```
+
+3. Add `/usr/lib/linux-tools/5.4.0-77-generic` to the beginning of secure_path. After editing, the line should look similar to this.
+`Defaults secure_path="/usr/lib/linux-tools/5.4.0-77-generic:/usr/local/sbin:..."` -->
+
+#### Debian
+
+1. If you use Debian for your WSL distro, use this command instead:
+
+```bash
+sudo apt install usbip hwdata usbutils
+```
+
+And that's all for installation and set up.
+
+### To connect your calculator
+
+1. Open an admin PowerShell and type:
+
+```powershell
+usbipd list
+```
+
+This will list your USB devices connected. Look at the BUSID column and remember the one for your calculator (it should be called "Numworks Calculator").
+2. Now run this command replacing `<BUSID>` by your calculator's USB port id:
+
+```powershell
+usbipd bind --busid <BUSID>
+usbipd attach --wsl --busid <BUSID>
 
 ```
-git clone --recursive https://github.com/Omega-Numworks/Omega.git
+
-cd Omega
+It will ask you to type your WSL's password and will connect your calculator to WSL.
-git checkout omega-master
+
+You can now go to step 2!
+
+</details>
+
+</details>
+
+<br>
+
+### 2. Set up repo
+
+Clone repo and use 'upsilon-dev' branch by pasting these two commands:
+
+```bash
+git clone --recursive https://github.com/UpsilonNumworks/Upsilon.git
+cd Upsilon
+git checkout upsilon-dev
+```
+
+<br>
+
+### 3. Choose the target
+
+<details>
+
+<summary><b>Model n0100</b></summary>
+
+(note: you can change the `EPSILON_I18N=en` flag to `fr`, `nl`, `pt`, `it`, `de`, `es` or `hu`).
+
+```bash
 make MODEL=n0100 clean
-make MODEL=n0100 USERNAME="{Your name, max 15 characters}" -j4
+make MODEL=n0100 EPSILON_I18N=en OMEGA_USERNAME="{Your name, max 15 characters}" -j$(nproc)
+```
+
+Now, run either:
+
+```bash
 make MODEL=n0100 epsilon_flash
 ```
 
-Important: Don't forget the `--recursive` tag, because Omega relies on submodules.
+to directly flash the calculator after pressing simultaneously `reset` and `6` buttons and plugging in.
-Also, you can change the number of processes that run in parallel during the build by changing the value of the `-j` flag.
+
-  
+<br>
+
+or:
+
+```bash
+make MODEL=n0100 OMEGA_USERNAME="" binpack -j$(nproc)
+```
+
+to make binpack which you can flash to the calculator from [TI-Planet's WebDFU](https://ti-planet.github.io/webdfu_numworks/n0100/). Binpacks are a great way to share a custom build of Upsilon to friends.
+
 </details>
 
 <details>
-  <summary><b>Model n0110</b></summary>
 
-```
+<summary><b>Model n0110</b></summary>
-git clone --recursive https://github.com/Omega-Numworks/Omega.git
+
-cd Omega
+The bootloader allows you to install 2 firmwares in separated "slots". If so, external apps won't have all the space but half. Bootloader will allow use of all of the memory if only one slot is flashed. In legacy mode, external apps use all the space available.
-git checkout omega-master
+
+<details>
+<summary>Bootloader</summary>
+
+Your calculator must already have been flashed with [Upsilon](https://getupsilon.web.app)'s or [Omega](https://getomega.dev)'s bootloader.
+Then, build with:
+
+```bash
 make clean
-make USERNAME="{Your name, max 15 characters}" -j4
+make OMEGA_USERNAME="{Your name, max 15 characters}" -j$(nproc)
-make epsilon_flash
 ```
 
-Important: Don't forget the `--recursive` tag, because Omega relies on submodules.
+Now, run either:
-Also, you can change the number of processes that run in parallel during the build by changing the value of the `-j` flag.
+
-  
+```bash
+make epsilon.A_flash
+```
+
+to directly flash the calculator into the current slot, or thought bootloader's slot flasher with RESET, then 4 (flash), and 1 (flash slots) for other slots.
+
+<br>
+
+or:
+
+```bash
+make OMEGA_USERNAME="" binpack -j$(nproc)
+```
+
+to make binpack which you can flash to the calculator from [TI-Planet's webDFU](https://ti-planet.github.io/webdfu_numworks/n0110/). You'll find them at `output/release/device/bootloader/`. Binpacks are a great way to share a custom build of Upsilon to friends.
 </details>
 
-<details>
-  <summary><b>Bin files</b></summary>
-  
-These can be used to distribute Omega (so that it can be flashed by anyone with [Webdfu_Numworks](https://ti-planet.github.io/webdfu_numworks/)).
 
+
+<details>
+<summary>Model N0110 legacy (deprecated, use bootloader instead for Epsilon protection)</summary>
+
+```bash
+make MODEL=n0110 clean
+make MODEL=n0110 OMEGA_USERNAME="{Your name, max 15 characters}" -j$(nproc)
 ```
-git clone --recursive https://github.com/Omega-Numworks/Omega.git
+
-cd Omega
+Now, run either:
-git checkout omega-master
+
+```bash
+make MODEL=n0110 epsilon_flash
+```
+
+to directly flash the calculator after pressing simultaneously `reset` and `6` buttons and plugging in.
+
+<br>
+
+or:
+
+```bash
+make MODEL=n0110 OMEGA_USERNAME="" binpack -j$(nproc)
+```
+
+to make binpack which you can flash to the calculator from [Ti-Planet's WebDFU](https://ti-planet.github.io/webdfu_numworks/n0110/). You'll find them at `output/release/device/bootloader/`. Binpacks are a great way to share a custom build of Upsilon to friends.
+</details>
+
+</details>
+
+
+<details>
+
+<summary><b>Native simulator</b></summary>
+
+Run this command:
+```bash
 make clean
-make MODEL=n0100 USERNAME="" -j8
+```
-make MODEL=n0100 USERNAME="" binpack -j8
+You can either build using the following command that will automatically detect your platform:
-make USERNAME="" -j8
+```bash
-make USERNAME="" binpack -j8
+make PLATFORM=simulator
+```
+or, choose the command corresponding to your platform:
+```bash
+make PLATFORM=simulator TARGET=android
+make PLATFORM=simulator TARGET=ios
+make PLATFORM=simulator TARGET=macos
+make PLATFORM=simulator TARGET=web
+make PLATFORM=simulator TARGET=windows
+make PLATFORM=simulator TARGET=3ds
 ```
 
-Important: Don't forget the `--recursive` tag, because Omega relies on submodules.
+You'll find simulator files in `output/release/simulator/`.
-Also, you can change the number of processes that run in parallel during the build by changing the value of the `-j` flag.
+
-  
 </details>
 
+
 <details>
-  <summary><b>Web simulator</b></summary>
+
-  
+<summary><b>Web simulator</b></summary>
+
 First, install emsdk :
 
-```
+```bash
 git clone https://github.com/emscripten-core/emsdk.git
 cd emsdk
-./emsdk install latest-fastcomp
+./emsdk install 1.40.1
-./emsdk activate latest-fastcomp
+./emsdk activate 1.40.1
 source emsdk_env.sh
 ```
 
-Then, compile Omega :
+Then, compile Upsilon :
 
-```
+```bash
-git clone --recursive https://github.com/Omega-Numworks/Omega.git
-cd Omega
-git checkout omega-master
 make clean
-make PLATFORM=simulator TARGET=web USERNAME="{Your name, max 15 characters}" -j4
+make PLATFORM=simulator TARGET=web OMEGA_USERNAME="{Your name, max 15 characters}" -j$(nproc)
 ```
 
 The simulator is now in `output/release/simulator/web/simulator.zip`
 
-Important: Don't forget the `--recursive` tag, because Omega relies on submodules.
+</details>
-Also, you can change the number of processes that run in parallel during the build by changing the value of the `-j` flag.
+
+<details>
+
+<summary><b>3DS Simulator</b></summary>
+
+You need devkitPro and devkitARM installed and in your path (instructions [here](https://devkitpro.org/wiki/Getting_Started))
+
+```bash
+git clone --recursive https://github.com/UpsilonNumworks/Upsilon.git
+cd Upsilon
+git checkout upsilon-dev
+make PLATFORM=simulator TARGET=3ds -j$(nproc)
+```
+
+You can then put epsilon.3dsx on a SD card to run it from the HBC or use 3dslink to launch it over the network:
+
+```bash
+3dslink output/release/simulator/3ds/epsilon.3dsx -a <3DS' IP ADDRESS>
+```
 
 </details>
 
+<details>
+
+<summary><b>Android Simulator</b></summary>
+
+Make sure you have JDK 25 installed.
+Then, download the Android toolchain r21e as following :
+```
+export ANDROID_HOME=$PWD/android-sdk
+wget -nv https://gitlab.com/fdroid/sdkmanager/-/raw/master/sdkmanager.py
+python3 sdkmanager.py --licenses
+python3 sdkmanager.py --install "ndk-bundle;r21e"
+```
+All you have to do is run this command to compile Upsilon.
+```
+make -j$(nproc) PLATFORM=simulator TARGET=android
+```
+The compiled file named `epsilon.apk` will be the one to install on the phone from your file manager. Shoudl work on Android 4.1+.
+
+</details>
+
+<details>
+  <summary><b>Casio fx-CG-series Port</b></summary>
+
+First, install gint and fxsdk along with a cross compiler for the calculator. There are instructions for this (in French, but Google Translate works well enough) [here](https://www.planet-casio.com/Fr/forums/topic16614-last-giteapc-installer-et-mettre-a-jour-automatiquement-des-projets-gitea.html).
+
+Next:
+```bash
+git clone --recursive https://github.com/UpsilonNumworks/Upsilon.git
+cd Omega
+git checkout upsilon-dev
+make PLATFORM=simulator TARGET=fxcg -j$(nproc)
+```
+Then copy the file at `./output/release/simulator/fxcg/epsilon.g3a` to the calculator over USB.
+
+</details>
+
+Important: Don't forget the `--recursive` tag, because Upsilon relies on submodules.
+Also, you can change the number of processes that run in parallel during the build by changing the value of the `-j` flag.
+Don't forget to put your pseudo instead of `{your pseudo, max 15 char}`. If you don't want one, just remove the `OMEGA_USERNAME=""` argument.
+
+<br>
+
+If you need help, you can join our Discord server here : <https://discord.gg/NFvzdCBTQn>
+
+<a href="https://discord.gg/NFvzdCBTQn"><p align="center"><img alt="Omega Banner Discord" src="https://user-images.githubusercontent.com/12123721/86287349-54ef5800-bbe8-11ea-80c1-34eb1f93eebd.png" /></p></a>
+
+---
+
+## Useful links
+
+- [Upsilon external (to install additional apps and wallpapers)](https://upsilonnumworks.github.io/Upsilon-External/)
+- [Ulab documentation](https://micropython-ulab.readthedocs.io/en/latest/)
+
 ## Contributing
 
-To contribute, please refer to the [Wiki](https://github.com/Omega-Numworks/Omega/wiki/Contributing)
+To contribute, please refer to [Omega's Wiki](https://github.com/Omega-Numworks/Omega/wiki/Contributing), the same rules apply here.
-
-## Branches
-
-* `omega-master` : stable releases
-* `omega-dev` : beta releases
-* `omega-hotfix` : developers only, branch to fix issues
 
 ## Related repositories
 
-* [Omega Themes](https://github.com/Omega-Numworks/Omega-Themes)
+Here are the main links toward Omega's different websites and repositories, that have been used for the creation of Upsilon.
-* [Omega Website](https://github.com/Omega-Numworks/Omega-Website)
+
-* [Omega RPN `APP`](https://github.com/Omega-Numworks/Omega-RPN)
+- [Omega Themes](https://github.com/Omega-Numworks/Omega-Themes)
-* [Omega Atom `APP`](https://github.com/Omega-Numworks/Omega-Atom)
+- [Omega Website](https://github.com/Omega-Numworks/Omega-Website)
-* [Omega Converter `APP`](https://github.com/Omega-Numworks/Omega-Converter)
+- [Omega RPN `APP`](https://github.com/Omega-Numworks/Omega-RPN)
-* [Omega Design](https://github.com/Omega-Numworks/Omega-Design)
+- [Omega Atomic `APP`](https://github.com/Omega-Numworks/Omega-Atomic)
-* [Omega CLI Installer `BETA`](https://github.com/Omega-Numworks/Omega-CLI-Installer)
+- [Omega Design](https://github.com/Omega-Numworks/Omega-Design)
-* [Omega App Template `BETA`](https://github.com/Omega-Numworks/Omega-App-Template)
+- [Omega Discord Bot](https://github.com/Omega-Numworks/Omega-Discord-Bot)
+- [Omega App Template `BETA`](https://github.com/Omega-Numworks/Omega-App-Template)
+- [External Apps](https://github.com/Omega-Numworks/External-Apps)
 
 ## About Epsilon
 
+Upsilon is a fork of Omega, after the project's discontinuation.
+
 Omega is a fork of Epsilon, a high-performance graphing calculator operating system. It includes eight apps that cover the high school mathematics curriculum.
 
 You can try Epsilon straight from your browser in the [online simulator](https://www.numworks.com/simulator/).
 
-## Contributors ✨
-
-Thanks goes to these wonderful people!
-
-<p align="center"><img src="https://github.com/Omega-Numworks/Omega-Design/blob/master/Omega-Contributors.png" /></p>
-
 ## License
 
-NumWorks is a registered trademark. Omega is not affiliated with NumWorks.
+NumWorks is a registered trademark of NumWorks SAS, 24 Rue Godot de Mauroy, 75009 Paris, France.
+Nintendo and Nintendo 3DS are registered trademarks of Nintendo of America Inc, 4600 150th Ave NE, Redmond, WA 98052, USA.
+Casio is a registered trademark of Casio Computer Co., Ltd. CORPORATION JAPAN 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo JAPAN 151-8543.
+NumWorks SAS, Nintendo of America Inc and Casio aren't associated in any shape or form with this project.
 
-* NumWorks Epsilon is released under a [CC BY-NC-SA License](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode).
+- NumWorks Epsilon is released under a [CC BY-NC-SA License](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode).
-* Omega is released under a [CC BY-NC-SA License](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode).
+- Omega is released under a [CC BY-NC-SA License](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode).
+- Upsilon is released under a [CC BY-NC-SA License](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode).

apps/Makefile

@@ -1,3 +1,4 @@
+include apps/helpers.mk
 include apps/shared/Makefile
 include apps/home/Makefile
 include apps/on_boarding/Makefile
@@ -10,36 +11,63 @@ apps =
 # (path to the apps header).
 $(foreach i,${apps_list},${eval include apps/$(i)/Makefile})
 
-app_src += $(addprefix apps/,\
+app_equals = $(and $(findstring $(1),$(2)),$(findstring $(2),$(1)))
+# We list all the apps that are missing
+apps_missing = $(foreach i, ${apps_list}, $(if $(call app_equals, apps/$(i)/Makefile, $(wildcard apps/$(i)/Makefile)),, $(i) ) )
+
+# If the two doesn't match, we got an error.
+ifneq ($(strip $(apps_missing)),)
+    miss_modules = 0
+
+    # Check if the missing apps are one that are supposed to be submodules
+    $(foreach i, $(SUBMODULES_APPS), $(if $(call app_equals, $(filter $(i), $(apps_missing)), $(i)), $(eval miss_modules=1)))
+
+    ifeq ($(miss_modules), 1)
+        PLS_IGNORE := $(shell >&2 printf "\nSome submodules apps seem to be missing. To download them, assuming you git clone'd the repo, do\n")
+        PLS_IGNORE := $(shell >&2 printf "  git submodule init\n")
+        PLS_IGNORE := $(shell >&2 printf "  git submodule update\n\n")
+    endif
+    $(error Missing apps: $(strip $(apps_missing)))
+endif
+
+apps_src += $(addprefix apps/,\
+  alternate_empty_nested_menu_controller.cpp \
   apps_container.cpp \
+  apps_container_launch_default.cpp:-onboarding \
+  apps_container_launch_on_boarding.cpp:+onboarding \
+  apps_container_prompt_beta.cpp:+beta \
+  apps_container_prompt_none.cpp:-beta \
+  apps_container_prompt_none.cpp:-update \
+  apps_container_prompt_update.cpp:+update \
   apps_container_storage.cpp \
   apps_window.cpp \
   backlight_dimming_timer.cpp \
   battery_timer.cpp \
   battery_view.cpp \
+  clock_timer.cpp \
   empty_battery_window.cpp \
   exam_pop_up_controller.cpp \
+  exam_mode_configuration_official.cpp:+official \
+  exam_mode_configuration_non_official.cpp:-official \
   global_preferences.cpp \
+  host_filemanager.cpp \
   i18n.py \
   lock_view.cpp \
   main.cpp \
   math_toolbox.cpp \
+  math_variable_box_controller.cpp \
+  math_variable_box_empty_controller.cpp \
   shift_alpha_lock_view.cpp \
   suspend_timer.cpp \
+  timer_manager.cpp \
   title_bar_view.cpp \
-  variable_box_controller.cpp \
+  xnt_loop.cpp \
-  variable_box_empty_controller.cpp \
 )
 
-tests_src += apps/exam_mode_configuration_non_official.cpp
+tests_src += $(addprefix apps/,\
-apps_official += apps/exam_mode_configuration_non_official.cpp
+  exam_mode_configuration_non_official.cpp \
-apps_non_official += apps/exam_mode_configuration_non_official.cpp
+)
 
-apps_launch_on_boarding_src += apps/apps_container_launch_on_boarding.cpp
-apps_launch_default_src += apps/apps_container_launch_default.cpp
-apps_prompt_none_src += apps/apps_container_prompt_none.cpp
-apps_prompt_beta_src += apps/apps_container_prompt_beta.cpp
-apps_prompt_update_src += apps/apps_container_prompt_update.cpp
 
 snapshots_declaration = $(foreach i,$(apps),$(i)::Snapshot m_snapshot$(subst :,,$(i))Snapshot;)
 apps_declaration = $(foreach i,$(apps),$(i) m_$(subst :,,$(i));)
@@ -49,41 +77,28 @@ snapshots_count = $(words $(apps))
 snapshot_includes = $(foreach i,$(app_headers),-include $(i) )
 epsilon_app_names = '$(foreach i,${apps_list},"$(i)", )'
 
-$(call object_for,apps/apps_container_storage.cpp apps/apps_container.cpp apps/main.cpp): CXXFLAGS += $(snapshot_includes) -DAPPS_CONTAINER_APPS_DECLARATION="$(apps_declaration)" -DAPPS_CONTAINER_SNAPSHOT_DECLARATIONS="$(snapshots_declaration)" -DAPPS_CONTAINER_SNAPSHOT_CONSTRUCTORS="$(snapshots_construction)" -DAPPS_CONTAINER_SNAPSHOT_LIST="$(snapshots_list)" -DAPPS_CONTAINER_SNAPSHOT_COUNT=$(snapshots_count) -DEPSILON_APPS_NAMES=$(epsilon_app_names) -DUSERNAME="$(USERNAME)"
+$(call object_for,apps/apps_container_storage.cpp apps/apps_container.cpp apps/main.cpp): CXXFLAGS += $(snapshot_includes) -DAPPS_CONTAINER_APPS_DECLARATION="$(apps_declaration)" -DAPPS_CONTAINER_SNAPSHOT_DECLARATIONS="$(snapshots_declaration)" -DAPPS_CONTAINER_SNAPSHOT_CONSTRUCTORS="$(snapshots_construction)" -DAPPS_CONTAINER_SNAPSHOT_LIST="$(snapshots_list)" -DAPPS_CONTAINER_SNAPSHOT_COUNT=$(snapshots_count) -DEPSILON_APPS_NAMES=$(epsilon_app_names) -DOMEGA_USERNAME="$(OMEGA_USERNAME)"
 
 # I18n file generation
 
-# The header is refered to as <apps/i18n.h> so make sure it's findable this way
+country_preferences = apps/country_preferences.csv
+language_preferences = apps/language_preferences.csv
+
+# The header is referred to as <apps/i18n.h> so make sure it's findable this way
 SFLAGS += -I$(BUILD_DIR)
 
 i18n_files += $(addprefix apps/language_,$(addsuffix .universal.i18n, $(EPSILON_I18N)))
-i18n_files += $(addprefix apps/,\
+
-  shared.de.i18n\
+i18n_files += $(call i18n_with_universal_for,shared)
-  shared.en.i18n\
+i18n_files += $(call i18n_with_universal_for,toolbox)
-  shared.es.i18n\
+i18n_files += $(call i18n_without_universal_for,variables)
-  shared.fr.i18n\
-  shared.pt.i18n\
-  shared.hu.i18n\
-  shared.universal.i18n\
-  toolbox.de.i18n\
-  toolbox.en.i18n\
-  toolbox.es.i18n\
-  toolbox.fr.i18n\
-  toolbox.pt.i18n\
-  toolbox.hu.i18n\
-  variables.de.i18n\
-  variables.en.i18n\
-  variables.es.i18n\
-  variables.fr.i18n\
-  variables.pt.i18n\
-  variables.hu.i18n\
-)
 
 $(eval $(call rule_for, \
   I18N, \
   apps/i18n.cpp, \
   $(i18n_files), \
-  $$(PYTHON) apps/i18n.py --header $$(subst .cpp,.h,$$@) --implementation $$@ --locales $$(EPSILON_I18N) --files $$^ \
+  $$(PYTHON) apps/i18n.py --codepoints $(code_points) --countrypreferences $(country_preferences) --languagepreferences $(language_preferences) --header $$(subst .cpp,.h,$$@) --implementation $$@ --locales $$(EPSILON_I18N) --countries $$(EPSILON_COUNTRIES) --files $$^, \
+  global \
 ))
 
 
@@ -94,36 +109,34 @@ $(BUILD_DIR)/apps/i18n.h: $(BUILD_DIR)/apps/i18n.cpp
 
 $(eval $(call depends_on_image,apps/title_bar_view.cpp,apps/exam_icon.png))
 
-all_app_src = $(app_src)(apps_launch_on_boarding_src) $(apps_launch_default_src) $(apps_prompt_none_src) $(apps_prompt_update_src) $(apps_prompt_beta_src) $(apps_official) $(apps_non_official) $(tests_src)
+$(call object_for,$(apps_src) $(tests_src)): $(BUILD_DIR)/apps/i18n.h
+$(call object_for,$(apps_src) $(tests_src)): $(BUILD_DIR)/apps/home/apps_layout.h
+$(call object_for,$(apps_src) $(tests_src)): $(BUILD_DIR)/python/port/genhdr/qstrdefs.generated.h
 
-$(call object_for,$(all_app_src)): $(BUILD_DIR)/apps/i18n.h
+$(call object_for,$(apps_src)): $(BUILD_DIR)/apps/home/apps_layout.h
-$(call object_for,$(all_app_src)): $(BUILD_DIR)/python/port/genhdr/qstrdefs.generated.h
 
-apps_tests_src = $(app_calculation_test_src) $(app_probability_test_src) $(app_regression_test_src) $(app_sequence_test_src) $(app_shared_test_src) $(app_statistics_test_src) $(app_settings_test_src) $(app_solver_test_src)
+apps_tests_src = $(app_calculation_test_src) $(app_code_test_src) $(app_graph_test_src) $(app_probability_test_src) $(app_regression_test_src) $(app_sequence_test_src) $(app_shared_test_src) $(app_statistics_test_src) $(app_settings_test_src) $(app_solver_test_src)
 
 apps_tests_src += $(addprefix apps/,\
+  alternate_empty_nested_menu_controller.cpp \
   global_preferences.cpp \
+  dummy_timer_manager.cpp \
 )
 
-
+ifeq ($(THEME_REPO),local)
 $(foreach img,$(image_list), $(eval $(call rule_for, \
   ICON, \
   $(img), \
-  $(addprefix themes/themes/, $(addsuffix .json, $(OMEGA_THEME))), \
+  $(addprefix themes/themes/local/, $(addsuffix .json, $(THEME_NAME))), \
-  $$(PYTHON) themes/themes_manager.py -i $(OMEGA_THEME) $$@ $(BUILD_DIR)/ \
+  $$(PYTHON) themes/themes_manager.py -i $(THEME_REPO) $(THEME_NAME) $$@ $(BUILD_DIR)/, \
+  global \
 )))
-
+else
-# Configure variants
+$(foreach img,$(image_list), $(eval $(call rule_for, \
-apps_all_src = $(app_src)
+  ICON, \
-apps_all_src += $(apps_official) $(apps_non_official)
+  $(img), \
-apps_all_src += $(apps_launch_default_src) $(apps_launch_on_boarding_src)
+  $(addsuffix /escher/palette.h, $(BUILD_DIR)), \
-apps_all_src += $(apps_prompt_none_src) $(apps_prompt_update_src) $(apps_prompt_beta_src)
+  $$(PYTHON) themes/themes_manager.py -i $(THEME_REPO) $(THEME_NAME) $$@ $(BUILD_DIR)/, \
-
+  global \
-apps_default_src = $(app_src) $(apps_non_official) $(apps_launch_default_src) $(apps_prompt_none_src)
+)))
-apps_official_default_src = $(app_src) $(apps_official) $(apps_launch_default_src) $(apps_prompt_none_src)
+endif
-apps_onboarding_src = $(app_src) $(apps_non_official) $(apps_launch_on_boarding_src) $(apps_prompt_none_src)
-apps_official_onboarding_src = $(app_src) $(apps_official) $(apps_launch_on_boarding_src) $(apps_prompt_none_src)
-apps_onboarding_update_src = $(app_src) $(apps_non_official) $(apps_launch_on_boarding_src) $(apps_prompt_update_src)
-apps_official_onboarding_update_src = $(app_src) $(apps_official) $(apps_launch_on_boarding_src) $(apps_prompt_update_src)
-apps_onboarding_beta_src = $(app_src) $(apps_non_official) $(apps_launch_on_boarding_src) $(apps_prompt_beta_src)
-apps_official_onboarding_beta_src = $(app_src) $(apps_official) $(apps_launch_on_boarding_src) $(apps_prompt_beta_src)

apps/alternate_empty_nested_menu_controller.cpp

@@ -0,0 +1,18 @@
+#include "alternate_empty_nested_menu_controller.h"
+
+void AlternateEmptyNestedMenuController::viewDidDisappear() {
+  if (isDisplayingEmptyController()) {
+    pop();
+  }
+  NestedMenuController::viewDidDisappear();
+}
+
+bool AlternateEmptyNestedMenuController::displayEmptyControllerIfNeeded() {
+  assert(!isDisplayingEmptyController());
+  // If the content is empty, we push an empty controller.
+  if (numberOfRows() == 0) {
+    push(emptyViewController());
+    return true;
+  }
+  return false;
+}

apps/alternate_empty_nested_menu_controller.h

@@ -0,0 +1,19 @@
+#ifndef APPS_ALTERNATE_EMPTY_NESTED_MENU_CONTROLLER_H
+#define APPS_ALTERNATE_EMPTY_NESTED_MENU_CONTROLLER_H
+
+#include <escher/nested_menu_controller.h>
+
+class AlternateEmptyNestedMenuController : public NestedMenuController {
+public:
+  AlternateEmptyNestedMenuController(I18n::Message title) :
+    NestedMenuController(nullptr, title)
+  {}
+  // View Controller
+  void viewDidDisappear() override;
+protected:
+  virtual ViewController * emptyViewController() = 0;
+  bool isDisplayingEmptyController() { return StackViewController::depth() == 2; }
+  bool displayEmptyControllerIfNeeded();
+};
+
+#endif

apps/apps_container.cpp

@@ -8,6 +8,8 @@
 #include <ion/backlight.h>
 #include <poincare/preferences.h>
 
+#include <algorithm>
+
 extern "C" {
 #include <assert.h>
 }
@@ -27,35 +29,61 @@ AppsContainer::AppsContainer() :
   m_globalContext(),
   m_variableBoxController(),
   m_examPopUpController(this),
-  m_promptController(k_promptMessages, k_promptColors, k_promptNumberOfMessages),
+  m_promptController(k_promptMessages, k_promptFGColors, k_promptBGColors, k_promptNumberOfMessages),
   m_batteryTimer(),
   m_suspendTimer(),
   m_backlightDimmingTimer(),
+  m_clockTimer(ClockTimer(this)),
   m_homeSnapshot(),
   m_onBoardingSnapshot(),
   m_hardwareTestSnapshot(),
-  m_usbConnectedSnapshot()
+  m_usbConnectedSnapshot(),
+  m_startAppSnapshot()
 {
   m_emptyBatteryWindow.setFrame(KDRect(0, 0, Ion::Display::Width, Ion::Display::Height), false);
-#if __EMSCRIPTEN__
+// #if __EMSCRIPTEN__
   /* AppsContainer::poincareCircuitBreaker uses Ion::Keyboard::scan(), which
    * calls emscripten_sleep. If we set the poincare circuit breaker, we would
    * need to whitelist all the methods that might be in the call stack when
    * poincareCircuitBreaker is run. This means either whitelisting all Epsilon
    * (which makes bigger files to download and slower execution), or
    * whitelisting all the symbols (that's a big amount of symbols to find and
-   * quite painy to maintain).
+   * quite paint to maintain).
    * We just remove the circuit breaker for now.
    * TODO: Put the Poincare circuit breaker back on epsilon's web emulator */
-#else
+
+  /*
+   * This can be run in Omega, since it uses WebASM.
+   */
+// #else
   Poincare::Expression::SetCircuitBreaker(AppsContainer::poincareCircuitBreaker);
-#endif
+// #endif
   Ion::Storage::sharedStorage()->setDelegate(this);
+
+  addTimer(&m_batteryTimer);
+  addTimer(&m_suspendTimer);
+  addTimer(&m_backlightDimmingTimer);
+  addTimer(&m_clockTimer);
 }
 
 bool AppsContainer::poincareCircuitBreaker() {
+  constexpr uint64_t minimalPressDuration = 20;
+  static uint64_t beginningOfInterruption = 0;
   Ion::Keyboard::State state = Ion::Keyboard::scan();
-  return state.keyDown(Ion::Keyboard::Key::Back);
+  bool interrupt = state.keyDown(Ion::Keyboard::Key::Back) || state.keyDown(Ion::Keyboard::Key::Home) || state.keyDown(Ion::Keyboard::Key::OnOff);
+  if (!interrupt) {
+    beginningOfInterruption = 0;
+    return false;
+  }
+  if (beginningOfInterruption == 0) {
+    beginningOfInterruption = Ion::Timing::millis();
+    return false;
+  }
+  if (Ion::Timing::millis() - beginningOfInterruption > minimalPressDuration) {
+    beginningOfInterruption = 0;
+    return true;
+  }
+  return false;
 }
 
 App::Snapshot * AppsContainer::hardwareTestAppSnapshot() {
@@ -88,7 +116,7 @@ MathToolbox * AppsContainer::mathToolbox() {
   return &m_mathToolbox;
 }
 
-VariableBoxController * AppsContainer::variableBoxController() {
+MathVariableBoxController * AppsContainer::variableBoxController() {
   return &m_variableBoxController;
 }
 
@@ -124,8 +152,11 @@ bool AppsContainer::dispatchEvent(Ion::Events::Event event) {
        * We do it before switching to USB application to redraw the battery
        * pictogram. */
       updateBatteryState();
-      if (switchTo(usbConnectedAppSnapshot())) {
+      if (GlobalPreferences::sharedGlobalPreferences()->isInExamMode()) {
-        Ion::USB::DFU();
+        // If we are in exam mode, we don't switch to usb connected app
+        didProcessEvent = true;
+      } else if (switchTo(usbConnectedAppSnapshot())) {
+        Ion::USB::DFU(true);
         // Update LED when exiting DFU mode
         Ion::LED::updateColorWithPlugAndCharge();
         bool switched = switchTo(activeSnapshot);
@@ -198,39 +229,91 @@ bool AppsContainer::dispatchEvent(Ion::Events::Event event) {
   return didProcessEvent || alphaLockWantsRedraw;
 }
 
+// List of keys that are used to switch between apps, in order of app to go (eg. 0 : First App, 1 : Second App, 2 : Third App, ...)
+static constexpr Ion::Events::Event switch_events[] = {
+    Ion::Events::ShiftSeven, Ion::Events::ShiftEight, Ion::Events::ShiftNine,
+    Ion::Events::ShiftFour, Ion::Events::ShiftFive, Ion::Events::ShiftSix,
+    Ion::Events::ShiftOne, Ion::Events::ShiftTwo, Ion::Events::ShiftThree,
+    Ion::Events::ShiftZero, Ion::Events::ShiftDot, Ion::Events::ShiftEE
+};
+
 bool AppsContainer::processEvent(Ion::Events::Event event) {
   // Warning: if the window is dirtied, you need to call window()->redraw()
   if (event == Ion::Events::USBPlug) {
     if (Ion::USB::isPlugged()) {
+      // If the exam mode is enabled, we ask to disable it, else, we enable USB
       if (GlobalPreferences::sharedGlobalPreferences()->isInExamMode()) {
         displayExamModePopUp(GlobalPreferences::ExamMode::Off);
         window()->redraw();
       } else {
         Ion::USB::enable();
       }
+      // Update brightness when USB is plugged
       Ion::Backlight::setBrightness(GlobalPreferences::sharedGlobalPreferences()->brightnessLevel());
     } else {
+      // If the USB isn't plugged in USBPlug event, we disable USB
       Ion::USB::disable();
     }
     return true;
   }
+  // If key home or key back is pressed, we switch to the home app.
   if (event == Ion::Events::Home || event == Ion::Events::Back) {
     switchTo(appSnapshotAtIndex(0));
     return true;
   }
+  // If shift + Home are pressed, we switch to the first app.
+  if (event == Ion::Events::ShiftHome) {
+    switchTo(appSnapshotAtIndex(1));
+    return true;
+  }
+
+  // Iterate through the switch events to find the one that matches the event, if one match, switch to the app at the index of the switch event.
+  for(int i = 0; i < std::min((int) (sizeof(switch_events) / sizeof(Ion::Events::Event)), APPS_CONTAINER_SNAPSHOT_COUNT); i++) {
+    if (event == switch_events[i]) {
+      m_window.redraw(true);
+      switchTo(appSnapshotAtIndex(i+1));
+      return true;
+    }
+  }
+
+  // Add EE shortcut to go to the settings (app number 12)
+  if (event == Ion::Events::EE) {
+    switchTo(appSnapshotAtIndex(12));
+    return true;
+  }
+
+  // Add Shift + Ans shortcut to go to the previous app
+  if (event == Ion::Events::ShiftAns) {
+    switchTo(appSnapshotAtIndex(m_lastAppIndex));
+    return true;
+  }
+
+  // If the event is the OnOff key, we suspend the calculator.
   if (event == Ion::Events::OnOff) {
     suspend(true);
     return true;
   }
+  // If the event is a brightness event, we update the brightness according to the event.
   if (event == Ion::Events::BrightnessPlus || event == Ion::Events::BrightnessMinus) {
       int delta = Ion::Backlight::MaxBrightness/GlobalPreferences::NumberOfBrightnessStates;
-      int direction = (event == Ion::Events::BrightnessPlus) ? Ion::Backlight::NumberOfStepsPerShortcut*delta : -delta*Ion::Backlight::NumberOfStepsPerShortcut;
+      int NumberOfStepsPerShortcut = GlobalPreferences::sharedGlobalPreferences()->brightnessShortcut();
+      int direction = (event == Ion::Events::BrightnessPlus) ? NumberOfStepsPerShortcut*delta : -delta*NumberOfStepsPerShortcut;
       GlobalPreferences::sharedGlobalPreferences()->setBrightnessLevel(GlobalPreferences::sharedGlobalPreferences()->brightnessLevel()+direction);
   }
+  // Else, the event was not processed.
   return false;
 }
 
 bool AppsContainer::switchTo(App::Snapshot * snapshot) {
+  // Get app index of the snapshot
+  int m_appIndexToSwitch = appIndexFromSnapshot(snapshot);
+  // If the app is home, skip app index saving
+  if (m_appIndexToSwitch != 0) {
+    // Save last app index
+    m_lastAppIndex = m_currentAppIndex;
+    // Save current app index
+    m_currentAppIndex = m_appIndexToSwitch;
+  }
   if (s_activeApp && snapshot != s_activeApp->snapshot()) {
     resetShiftAlphaStatus();
   }
@@ -267,7 +350,13 @@ void AppsContainer::run() {
     /* Normal execution. The exception checkpoint must be created before
      * switching to the first app, because the first app might create nodes on
      * the pool. */
-    bool switched = switchTo(initialAppSnapshot());
+    bool switched;
+    if (m_startAppSnapshot != nullptr) {
+      switched = switchTo(m_startAppSnapshot);
+    } else {
+      switched = switchTo(initialAppSnapshot());
+    }
+
     assert(switched);
     (void) switched; // Silence compilation warning about unused variable.
   } else {
@@ -277,7 +366,7 @@ void AppsContainer::run() {
        * destroyed from the pool. To avoid using them before packing the app
        * (in App::willBecomeInactive for instance), we tidy them early on. */
       s_activeApp->snapshot()->tidy();
-      /* When an app encoutered an exception due to a full pool, the next time
+      /* When an app encountered an exception due to a full pool, the next time
        * the user enters the app, the same exception could happen again which
        * would prevent from reopening the app. To avoid being stuck outside the
        * app causing the issue, we reset its snapshot when leaving it due to
@@ -296,6 +385,10 @@ void AppsContainer::run() {
   switchTo(nullptr);
 }
 
+bool AppsContainer::updateClock() {
+  return m_window.updateClock();
+}
+
 bool AppsContainer::updateBatteryState() {
   bool batteryLevelUpdated = m_window.updateBatteryLevel();
   bool pluggedStateUpdated = m_window.updatePluggedState();
@@ -307,6 +400,8 @@ bool AppsContainer::updateBatteryState() {
 }
 
 void AppsContainer::refreshPreferences() {
+  m_suspendTimer.reset(GlobalPreferences::sharedGlobalPreferences()->idleBeforeSuspendSeconds()*1000/Timer::TickDuration);
+  m_backlightDimmingTimer.reset(GlobalPreferences::sharedGlobalPreferences()->idleBeforeDimmingSeconds()*1000/Timer::TickDuration);
   m_window.refreshPreferences();
 }
 
@@ -328,7 +423,7 @@ void AppsContainer::shutdownDueToLowBattery() {
    * case. */
     return;
   }
-  while (Ion::Battery::level() == Ion::Battery::Charge::EMPTY) {
+  while (Ion::Battery::level() == Ion::Battery::Charge::EMPTY && !Ion::USB::isPlugged()) {
     Ion::Backlight::setBrightness(0);
     if (!GlobalPreferences::sharedGlobalPreferences()->isInExamMode()) {
       /* Unless the LED is lit up for the exam mode, switch off the LED. IF the
@@ -352,7 +447,7 @@ bool AppsContainer::updateAlphaLock() {
   return m_window.updateAlphaLock();
 }
 
-OnBoarding::PopUpController * AppsContainer::promptController() {
+OnBoarding::PromptController * AppsContainer::promptController() {
   if (k_promptNumberOfMessages == 0) {
     return nullptr;
   }
@@ -366,30 +461,7 @@ void AppsContainer::redrawWindow(bool force) {
 void AppsContainer::activateExamMode(GlobalPreferences::ExamMode examMode) {
   assert(examMode != GlobalPreferences::ExamMode::Off && examMode != GlobalPreferences::ExamMode::Unknown);
   reset();
-  Preferences * preferences = Preferences::sharedPreferences();
+  Ion::LED::setColor(KDColorRed);
-  switch ((int)preferences->colorOfLED()) {
-    case 0:
-      Ion::LED::setColor(KDColorRed);
-      break;
-    case 1:
-      Ion::LED::setColor(KDColorWhite);
-      break;
-    case 2:
-      Ion::LED::setColor(KDColorGreen);
-      break;
-    case 3:
-      Ion::LED::setColor(KDColorBlue);
-      break;
-    case 4:
-      Ion::LED::setColor(KDColorYellow);
-      break;
-    case 5:
-      Ion::LED::setColor(KDColorPurple);
-      break;
-    case 6:
-      Ion::LED::setColor(KDColorOrange);
-      break;
-  }
   /* The Dutch exam mode LED is supposed to be orange but we can only make
    * blink "pure" colors: with RGB leds on or off (as the PWM is used for
    * blinking). The closest "pure" color is Yellow. Moreover, Orange LED is
@@ -423,15 +495,6 @@ Window * AppsContainer::window() {
   return &m_window;
 }
 
-int AppsContainer::numberOfContainerTimers() {
-  return 3;
-}
-
-Timer * AppsContainer::containerTimerAtIndex(int i) {
-  Timer * timers[3] = {&m_batteryTimer, &m_suspendTimer, &m_backlightDimmingTimer};
-  return timers[i];
-}
-
 void AppsContainer::resetShiftAlphaStatus() {
   Ion::Events::setShiftAlphaStatus(Ion::Events::ShiftAlphaStatus::Default);
   updateAlphaLock();

apps/apps_container.h

@@ -8,7 +8,7 @@
 #include "apps_window.h"
 #include "empty_battery_window.h"
 #include "math_toolbox.h"
-#include "variable_box_controller.h"
+#include "math_variable_box_controller.h"
 #include "exam_pop_up_controller.h"
 #include "exam_pop_up_controller_delegate.h"
 #include "battery_timer.h"
@@ -16,7 +16,9 @@
 #include "global_preferences.h"
 #include "backlight_dimming_timer.h"
 #include "shared/global_context.h"
-#include "on_boarding/pop_up_controller.h"
+#include "clock_timer.h"
+#include "on_boarding/prompt_controller.h"
+#include "xnt_loop.h"
 
 #include <ion/events.h>
 
@@ -27,6 +29,7 @@ public:
   static bool poincareCircuitBreaker();
   virtual int numberOfApps() = 0;
   virtual App::Snapshot * appSnapshotAtIndex(int index) = 0;
+  virtual int appIndexFromSnapshot(App::Snapshot * snapshot) = 0;
   App::Snapshot * initialAppSnapshot();
   App::Snapshot * hardwareTestAppSnapshot();
   App::Snapshot * onBoardingAppSnapshot();
@@ -34,18 +37,21 @@ public:
   void reset();
   Poincare::Context * globalContext();
   MathToolbox * mathToolbox();
-  VariableBoxController * variableBoxController();
+  MathVariableBoxController * variableBoxController();
   void suspend(bool checkIfOnOffKeyReleased = false);
-  virtual bool dispatchEvent(Ion::Events::Event event) override;
+  bool dispatchEvent(Ion::Events::Event event) override;
   bool switchTo(App::Snapshot * snapshot) override;
   void run() override;
+  bool updateClock();
   bool updateBatteryState();
   void refreshPreferences();
   void reloadTitleBarView();
   void displayExamModePopUp(GlobalPreferences::ExamMode mode);
   void shutdownDueToLowBattery();
   void setShiftAlphaStatus(Ion::Events::ShiftAlphaStatus newStatus);
-  OnBoarding::PopUpController * promptController();
+  CodePoint XNT(CodePoint defaultXNT, bool * shouldRemoveLastCharacter) { return m_XNTLoop.XNT(defaultXNT, shouldRemoveLastCharacter); }
+  void resetXNT() { m_XNTLoop.reset(); }
+  OnBoarding::PromptController * promptController();
   void redrawWindow(bool force = false);
   void activateExamMode(GlobalPreferences::ExamMode examMode);
   // Exam pop-up controller delegate
@@ -53,33 +59,42 @@ public:
   // Ion::StorageDelegate
   void storageDidChangeForRecord(const Ion::Storage::Record record) override;
   void storageIsFull() override;
+  #ifdef EPSILON_GETOPT
+  void setStartApp(App::Snapshot * snapshot) { m_startAppSnapshot = snapshot; }
+  #endif
 protected:
   Home::App::Snapshot * homeAppSnapshot() { return &m_homeSnapshot; }
 private:
   Window * window() override;
-  int numberOfContainerTimers() override;
-  Timer * containerTimerAtIndex(int i) override;
   bool processEvent(Ion::Events::Event event);
   void resetShiftAlphaStatus();
   bool updateAlphaLock();
 
   static I18n::Message k_promptMessages[];
-  static KDColor k_promptColors[];
+  static KDColor k_promptFGColors[];
+  static KDColor k_promptBGColors[];
   static int k_promptNumberOfMessages;
+  int m_currentAppIndex; // Home isn't included after the second app switching
+  int m_lastAppIndex;
   AppsWindow m_window;
   EmptyBatteryWindow m_emptyBatteryWindow;
   Shared::GlobalContext m_globalContext;
   MathToolbox m_mathToolbox;
-  VariableBoxController m_variableBoxController;
+  MathVariableBoxController m_variableBoxController;
   ExamPopUpController m_examPopUpController;
-  OnBoarding::PopUpController m_promptController;
+  OnBoarding::PromptController m_promptController;
   BatteryTimer m_batteryTimer;
   SuspendTimer m_suspendTimer;
   BacklightDimmingTimer m_backlightDimmingTimer;
+  ClockTimer m_clockTimer;
   Home::App::Snapshot m_homeSnapshot;
   OnBoarding::App::Snapshot m_onBoardingSnapshot;
   HardwareTest::App::Snapshot m_hardwareTestSnapshot;
   USB::App::Snapshot m_usbConnectedSnapshot;
+  XNTLoop m_XNTLoop;
+  #ifdef EPSILON_GETOPT
+  App::Snapshot * m_startAppSnapshot;
+  #endif
 };
 
 #endif

apps/apps_container_prompt_beta.cpp

@@ -10,7 +10,7 @@ I18n::Message AppsContainer::k_promptMessages[] = {
   I18n::Message::BetaVersionMessage5,
   I18n::Message::BetaVersionMessage6};
 
-KDColor AppsContainer::k_promptColors[] = {
+KDColor AppsContainer::k_promptFGColors[] = {
   KDColorBlack,
   KDColorBlack,
   KDColorBlack,
@@ -20,4 +20,14 @@ KDColor AppsContainer::k_promptColors[] = {
   KDColorBlack,
   Palette::AccentText};
 
+KDColor AppsContainer::k_promptBGColors[] = {
+    KDColorWhite,
+    KDColorWhite,
+    KDColorWhite,
+    KDColorWhite,
+    KDColorWhite,
+    KDColorWhite,
+    KDColorWhite,
+    KDColorWhite};
+
 int AppsContainer::k_promptNumberOfMessages = 8;

apps/apps_container_prompt_none.cpp

@@ -2,7 +2,8 @@
 
 I18n::Message AppsContainer::k_promptMessages[] = {};
 
-KDColor AppsContainer::k_promptColors[] = {};
+KDColor AppsContainer::k_promptFGColors[] = {};
+KDColor AppsContainer::k_promptBGColors[] = {};
 
 int AppsContainer::k_promptNumberOfMessages = 0;
 

apps/apps_container_prompt_update.cpp

@@ -8,7 +8,7 @@ I18n::Message AppsContainer::k_promptMessages[] = {
   I18n::Message::UpdateMessage3,
   I18n::Message::UpdateMessage4};
 
-KDColor AppsContainer::k_promptColors[] = {
+KDColor AppsContainer::k_promptFGColors[] = {
   KDColorBlack,
   KDColorBlack,
   KDColorBlack,
@@ -16,4 +16,12 @@ KDColor AppsContainer::k_promptColors[] = {
   KDColorBlack,
   Palette::AccentText};
 
+KDColor AppsContainer::k_promptBGColors[] = {
+    KDColorWhite,
+    KDColorWhite,
+    KDColorWhite,
+    KDColorBlack,
+    KDColorWhite,
+    KDColorBlack};
+
 int AppsContainer::k_promptNumberOfMessages = 6;

apps/apps_container_storage.cpp

@@ -34,5 +34,25 @@ App::Snapshot * AppsContainerStorage::appSnapshotAtIndex(int index) {
   };
   assert(sizeof(snapshots)/sizeof(snapshots[0]) == k_numberOfCommonApps);
   assert(index >= 0 && index < k_numberOfCommonApps);
+  // To avoid crashes, we return the home app snapshot if the index is out of
+  // bounds. (no crash in release mode, but an assert in debug mode)
+  if (index >= k_numberOfCommonApps) {
+    return snapshots[0];
+  }
   return snapshots[index];
 }
+
+// Get the index of the app from its snapshot
+int AppsContainerStorage::appIndexFromSnapshot(App::Snapshot * snapshot) {
+  App::Snapshot * snapshots[] = {
+    homeAppSnapshot()
+    APPS_CONTAINER_SNAPSHOT_LIST
+  };
+  assert(sizeof(snapshots)/sizeof(snapshots[0]) == k_numberOfCommonApps);
+  for (int i = 0; i < k_numberOfCommonApps; i++) {
+    if (snapshots[i] == snapshot) {
+      return i;
+    }
+  }
+  return NULL;
+}

apps/apps_container_storage.h

@@ -12,6 +12,7 @@ public:
   AppsContainerStorage();
   int numberOfApps() override;
   App::Snapshot * appSnapshotAtIndex(int index) override;
+  int appIndexFromSnapshot(App::Snapshot * snapshot) override;
   void * currentAppBuffer() override { return &m_apps; };
 private:
   union Apps {

apps/apps_window.cpp

@@ -3,6 +3,7 @@
 extern "C" {
 #include <assert.h>
 }
+#include <ion/rtc.h>
 
 AppsWindow::AppsWindow() :
   Window(),
@@ -19,6 +20,11 @@ bool AppsWindow::updateBatteryLevel() {
   return m_titleBarView.setChargeState(Ion::Battery::level());
 }
 
+bool AppsWindow::updateClock() {
+  Ion::RTC::DateTime dateTime = Ion::RTC::dateTime();
+  return m_titleBarView.setClock(dateTime.tm_hour, dateTime.tm_min, Ion::RTC::mode() != Ion::RTC::Mode::Disabled);
+}
+
 bool AppsWindow::updateIsChargingState() {
   return m_titleBarView.setIsCharging(Ion::Battery::isCharging());
 }

apps/apps_window.h

@@ -9,6 +9,7 @@ public:
   AppsWindow();
   void setTitle(I18n::Message title);
   bool updateBatteryLevel();
+  bool updateClock();
   bool updateIsChargingState();
   bool updatePluggedState();
   void refreshPreferences();

apps/backlight_dimming_timer.cpp

@@ -1,11 +1,26 @@
 #include "backlight_dimming_timer.h"
+#include "global_preferences.h"
+#include <ion/backlight.h>
+#include <ion/events.h>
+#include <apps/apps_container.h>
 
 BacklightDimmingTimer::BacklightDimmingTimer() :
-  Timer(k_idleBeforeDimmingDuration/Timer::TickDuration)
+  Timer(GlobalPreferences::sharedGlobalPreferences()->idleBeforeDimmingSeconds()*1000/Timer::TickDuration)
 {
 }
 
-bool BacklightDimmingTimer::fire() {
+bool BacklightDimmingTimer::fire(){
-  Ion::Backlight::setBrightness(k_dimBacklightBrightness);
+  int i = Ion::Backlight::brightness();
+  while (i > 0){
+    int t = 20;
+    Ion::Events::Event e = Ion::Events::getEvent(&t);
+    AppsContainer::sharedAppsContainer()->dispatchEvent(e);
+    if (e.isKeyboardEvent()){
+      return false;
+    }
+
+    Ion::Backlight::setBrightness(i);
+    i -= 15;
+  }
   return false;
 }

apps/backlight_dimming_timer.h

@@ -7,8 +7,6 @@ class BacklightDimmingTimer : public Timer {
 public:
   BacklightDimmingTimer();
 private:
-  constexpr static int k_idleBeforeDimmingDuration = 30*1000; // In miliseconds
-  constexpr static int k_dimBacklightBrightness = 0;
   bool fire() override;
 };
 

apps/battery_timer.cpp

@@ -9,7 +9,7 @@ BatteryTimer::BatteryTimer() :
 bool BatteryTimer::fire() {
   AppsContainer * container = AppsContainer::sharedAppsContainer();
   bool needRedrawing = container->updateBatteryState();
-  if (Ion::Battery::level() == Ion::Battery::Charge::EMPTY) {
+  if (Ion::Battery::level() == Ion::Battery::Charge::EMPTY && !Ion::USB::isPlugged()) {
     container->shutdownDueToLowBattery();
   }
   return needRedrawing;

apps/battery_view.cpp

@@ -60,32 +60,36 @@ void BatteryView::drawRect(KDContext * ctx, KDRect rect) const {
    *'content' depends on the charge */
 
   // Draw the left part
-  ctx->fillRect(KDRect(0, 0, k_elementWidth, k_batteryHeight), Palette::Battery);
+  ctx->fillRect(KDRect(0, 1, k_elementWidth, k_batteryHeight - 2), Palette::Battery);
+
+  // Draw top and bottom part
+  ctx->fillRect(KDRect(1, 0, k_batteryWidth-3, 1), Palette::Battery);
+  ctx->fillRect(KDRect(1, k_batteryHeight-1, k_batteryWidth-3, 1), Palette::Battery);
 
   // Draw the middle part
   constexpr KDCoordinate batteryInsideX = k_elementWidth+k_separatorThickness;
   constexpr KDCoordinate batteryInsideWidth = k_batteryWidth-3*k_elementWidth-2*k_separatorThickness;
   if (m_isCharging) {
     // Charging: Yellow background with flash
-    ctx->fillRect(KDRect(batteryInsideX, 0, batteryInsideWidth, k_batteryHeight), Palette::BatteryInCharge);
+    ctx->fillRect(KDRect(batteryInsideX, 2, batteryInsideWidth, k_batteryHeight-4), Palette::BatteryInCharge);
     KDRect frame((k_batteryWidth-k_flashWidth)/2, 0, k_flashWidth, k_flashHeight);
     KDColor flashWorkingBuffer[BatteryView::k_flashHeight*BatteryView::k_flashWidth];
     ctx->blendRectWithMask(frame, Palette::Battery, (const uint8_t *)flashMask, flashWorkingBuffer);
   } else if (m_chargeState == Ion::Battery::Charge::LOW) {
     assert(!m_isPlugged);
     // Low: Quite empty battery
-    ctx->fillRect(KDRect(batteryInsideX, 0, 2*k_elementWidth, k_batteryHeight), Palette::BatteryLow);
+    ctx->fillRect(KDRect(batteryInsideX, 2, 2*k_elementWidth, k_batteryHeight-4), Palette::BatteryLow);
-    ctx->fillRect(KDRect(3*k_elementWidth+k_separatorThickness, 0, k_batteryWidth-5*k_elementWidth-2*k_separatorThickness, k_batteryHeight), Palette::BatteryInCharge);
+    ctx->fillRect(KDRect(3*k_elementWidth+k_separatorThickness, 2, k_batteryWidth-5*k_elementWidth-2*k_separatorThickness, k_batteryHeight-4), KDColor::blend(Palette::Toolbar, Palette::Battery, 128));
   } else if (m_chargeState == Ion::Battery::Charge::SOMEWHERE_INBETWEEN) {
     assert(!m_isPlugged);
     // Middle: Half full battery
     constexpr KDCoordinate middleChargeWidth = batteryInsideWidth/2;
-    ctx->fillRect(KDRect(batteryInsideX, 0, middleChargeWidth, k_batteryHeight), Palette::Battery);
+    ctx->fillRect(KDRect(batteryInsideX, 2, middleChargeWidth, k_batteryHeight-4), Palette::Battery);
-    ctx->fillRect(KDRect(batteryInsideX+middleChargeWidth, 0, middleChargeWidth, k_batteryHeight), Palette::BatteryInCharge);
+    ctx->fillRect(KDRect(batteryInsideX+middleChargeWidth, 2, middleChargeWidth+1, k_batteryHeight-4), KDColor::blend(Palette::Toolbar, Palette::Battery, 128));
   } else {
     assert(m_chargeState == Ion::Battery::Charge::FULL);
     // Full but not plugged: Full battery
-    ctx->fillRect(KDRect(batteryInsideX, 0, batteryInsideWidth, k_batteryHeight), Palette::Battery);
+    ctx->fillRect(KDRect(batteryInsideX, 2, batteryInsideWidth, k_batteryHeight-4), Palette::Battery);
     if (m_isPlugged) {
       // Plugged and full: Full battery with tick
       KDRect frame((k_batteryWidth-k_tickWidth)/2, (k_batteryHeight-k_tickHeight)/2, k_tickWidth, k_tickHeight);
@@ -95,7 +99,7 @@ void BatteryView::drawRect(KDContext * ctx, KDRect rect) const {
   }
 
   // Draw the right part
-  ctx->fillRect(KDRect(k_batteryWidth-2*k_elementWidth, 0, k_elementWidth, k_batteryHeight), Palette::Battery);
+  ctx->fillRect(KDRect(k_batteryWidth-2*k_elementWidth, 1, k_elementWidth, k_batteryHeight-2), Palette::Battery);
   ctx->fillRect(KDRect(k_batteryWidth-k_elementWidth, (k_batteryHeight-k_capHeight)/2, k_elementWidth, k_capHeight), Palette::Battery);
 }
 

apps/battery_view.h

@@ -20,10 +20,10 @@ public:
   constexpr static int k_tickHeight = 6;
   constexpr static int k_tickWidth = 8;
 private:
-  constexpr static KDCoordinate k_batteryHeight = 8;
+  constexpr static KDCoordinate k_batteryHeight = 9;
-  constexpr static KDCoordinate k_batteryWidth = 15;
+  constexpr static KDCoordinate k_batteryWidth = 16;
   constexpr static KDCoordinate k_elementWidth = 1;
-  constexpr static KDCoordinate k_capHeight = 4;
+  constexpr static KDCoordinate k_capHeight = 3;
   constexpr static KDCoordinate k_separatorThickness = Metric::CellSeparatorThickness;
   Ion::Battery::Charge m_chargeState;
   bool m_isCharging;

apps/calculation/Makefile

@@ -17,10 +17,13 @@ app_calculation_src = $(addprefix apps/calculation/,\
   additional_outputs/integer_list_controller.cpp \
   additional_outputs/scrollable_three_expressions_cell.cpp \
   additional_outputs/list_controller.cpp \
+  additional_outputs/matrix_list_controller.cpp \
   additional_outputs/rational_list_controller.cpp \
+  additional_outputs/second_degree_list_controller.cpp \
   additional_outputs/trigonometry_graph_cell.cpp \
   additional_outputs/trigonometry_list_controller.cpp \
   additional_outputs/trigonometry_model.cpp \
+  additional_outputs/unit_list_controller.cpp \
   app.cpp \
   edit_expression_controller.cpp \
   expression_field.cpp \
@@ -30,16 +33,9 @@ app_calculation_src = $(addprefix apps/calculation/,\
 )
 
 app_calculation_src += $(app_calculation_test_src)
-app_src += $(app_calculation_src)
+apps_src += $(app_calculation_src)
 
-i18n_files += $(addprefix apps/calculation/,\
+i18n_files += $(call i18n_without_universal_for,calculation/base)
-  base.de.i18n\
-  base.en.i18n\
-  base.es.i18n\
-  base.fr.i18n\
-  base.pt.i18n\
-  base.hu.i18n\
-)
 
 tests_src += $(addprefix apps/calculation/test/,\
   calculation_store.cpp\

apps/calculation/additional_outputs/complex_graph_cell.cpp

@@ -1,4 +1,5 @@
 #include "complex_graph_cell.h"
+#include <escher/palette.h>
 
 using namespace Shared;
 using namespace Poincare;
@@ -12,7 +13,7 @@ ComplexGraphView::ComplexGraphView(ComplexModel * complexModel) :
 }
 
 void ComplexGraphView::drawRect(KDContext * ctx, KDRect rect) const {
-  ctx->fillRect(rect, KDColorWhite);
+  ctx->fillRect(rect, Palette::BackgroundApps);
 
   // Draw grid, axes and graduations
   drawGrid(ctx, rect);
@@ -25,7 +26,7 @@ void ComplexGraphView::drawRect(KDContext * ctx, KDRect rect) const {
 
   assert(!std::isnan(real) && !std::isnan(imag) && !std::isinf(real) && !std::isinf(imag));
   // Draw the segment from the origin to the dot (real, imag)
-  drawSegment(ctx, rect, 0.0f, 0.0f, m_complex->real(), m_complex->imag(), Palette::GreyDark, false);
+  drawSegment(ctx, rect, 0.0f, 0.0f, m_complex->real(), m_complex->imag(), Palette::SecondaryText, false);
 
   /* Draw the partial ellipse indicating the angle θ
    * - the ellipse parameters are a = |real|/5 and b = |imag|/5,
@@ -39,7 +40,7 @@ void ComplexGraphView::drawRect(KDContext * ctx, KDRect rect) const {
    * and the line of equation (real*t,imag*t).
    * (a*cos(t), b*sin(t)) = (real*t,imag*t) --> tan(t) = sign(a)*sign(b) (± π)
    * --> t = π/4 [π/2] according to sign(a) and sign(b). */
-  float th = real < 0.0f ? 3.0f*M_PI/4.0f : M_PI/4.0f;
+  float th = real < 0.0f ? (float)(3.0*M_PI_4) : (float)M_PI_4;
   th = imag < 0.0f ? -th : th;
   // Compute ellipsis parameters a and b
   float factor = 5.0f;
@@ -48,7 +49,7 @@ void ComplexGraphView::drawRect(KDContext * ctx, KDRect rect) const {
   // Avoid flat ellipsis for edge cases (for real = 0, the case imag = 0 is excluded)
   if (real == 0.0f) {
     a = 1.0f/factor;
-    th = imag < 0.0f ? -M_PI/2.0f : M_PI/2.0f;
+    th = imag < 0.0f ? (float)-M_PI_2 : (float)M_PI_2;
   }
   std::complex<float> parameters(a,b);
   drawCurve(ctx, rect, 0.0f, 1.0f, 0.01f,
@@ -58,27 +59,27 @@ void ComplexGraphView::drawRect(KDContext * ctx, KDRect rect) const {
         float a = parameters.real();
         float b = parameters.imag();
         return Poincare::Coordinate2D<float>(a*std::cos(t*th), b*std::sin(t*th));
-    }, &parameters, &th, false, Palette::GreyDark, false);
+    }, &parameters, &th, false, Palette::SecondaryText, false);
 
   // Draw dashed segment to indicate real and imaginary
-  drawHorizontalOrVerticalSegment(ctx, rect, Axis::Vertical, real, 0.0f, imag, Palette::Red, 1, 3);
+  drawHorizontalOrVerticalSegment(ctx, rect, Axis::Vertical, real, 0.0f, imag, Palette::CalculationTrigoAndComplexForeground, 1, 3);
-  drawHorizontalOrVerticalSegment(ctx, rect, Axis::Horizontal, imag, 0.0f, real, Palette::Red, 1, 3);
+  drawHorizontalOrVerticalSegment(ctx, rect, Axis::Horizontal, imag, 0.0f, real, Palette::CalculationTrigoAndComplexForeground, 1, 3);
 
   // Draw complex position on the plan
-  drawDot(ctx, rect, real, imag, Palette::Red, Size::Large);
+  drawDot(ctx, rect, real, imag, Palette::CalculationTrigoAndComplexForeground, Size::Large);
 
   // Draw labels
   // 're(z)' label
-  drawLabel(ctx, rect, real, 0.0f, "re(z)", Palette::Red, CurveView::RelativePosition::None, imag >= 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After);
+  drawLabel(ctx, rect, real, 0.0f, "re(z)", Palette::CalculationTrigoAndComplexForeground, CurveView::RelativePosition::None, imag >= 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After);
   // 'im(z)' label
-  drawLabel(ctx, rect, 0.0f, imag, "im(θ)", Palette::Red, real >= 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After, CurveView::RelativePosition::None);
+  drawLabel(ctx, rect, 0.0f, imag, "im(z)", Palette::CalculationTrigoAndComplexForeground, real >= 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After, CurveView::RelativePosition::None);
   // '|z|' label, the relative horizontal position of this label depends on the quadrant
   CurveView::RelativePosition verticalPosition = real*imag < 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After;
   if (real == 0.0f) {
     // Edge case: pure imaginary
     verticalPosition = CurveView::RelativePosition::None;
   }
-  drawLabel(ctx, rect, real/2.0f, imag/2.0f, "|z|", Palette::Red, CurveView::RelativePosition::None, verticalPosition);
+  drawLabel(ctx, rect, real/2.0f, imag/2.0f, "|z|", Palette::CalculationTrigoAndComplexForeground, CurveView::RelativePosition::None, verticalPosition);
   // 'arg(z)' label, the absolute and relative horizontal/vertical positions of this label depends on the quadrant
   CurveView::RelativePosition horizontalPosition = real >= 0.0f ? CurveView::RelativePosition::After : CurveView::RelativePosition::None;
   verticalPosition = imag >= 0.0f ? CurveView::RelativePosition::After : CurveView::RelativePosition::Before;
@@ -87,7 +88,7 @@ void ComplexGraphView::drawRect(KDContext * ctx, KDRect rect) const {
    * and for the left half plan, we position the label at the half angle. The
    * relative position is chosen accordingly. */
   float anglePositionRatio = real >= 0.0f ? 0.0f : 0.5f;
-  drawLabel(ctx, rect, a*std::cos(anglePositionRatio*th), b*std::sin(anglePositionRatio*th), "arg(z)", Palette::Red, horizontalPosition, verticalPosition);
+  drawLabel(ctx, rect, a*std::cos(anglePositionRatio*th), b*std::sin(anglePositionRatio*th), "arg(z)", Palette::CalculationTrigoAndComplexForeground, horizontalPosition, verticalPosition);
 }
 
 }

apps/calculation/additional_outputs/complex_list_controller.cpp

@@ -26,10 +26,10 @@ void ComplexListController::setExpression(Poincare::Expression e) {
   }
   Poincare::Context * context = App::app()->localContext();
   // Fill Calculation Store
-  m_calculationStore.push("im(z)", context);
+  m_calculationStore.push("im(z)", context, CalculationHeight);
-  m_calculationStore.push("re(z)", context);
+  m_calculationStore.push("re(z)", context, CalculationHeight);
-  m_calculationStore.push("arg(z)", context);
+  m_calculationStore.push("arg(z)", context, CalculationHeight);
-  m_calculationStore.push("abs(z)", context);
+  m_calculationStore.push("abs(z)", context, CalculationHeight);
 
   // Set Complex illustration
   // Compute a and b as in Expression::hasDefinedComplexApproximation to ensure the same defined result

apps/calculation/additional_outputs/complex_list_controller.h

@@ -10,7 +10,7 @@ namespace Calculation {
 class ComplexListController : public IllustratedListController {
 public:
   ComplexListController(EditExpressionController * editExpressionController) :
-    IllustratedListController(nullptr, editExpressionController),
+    IllustratedListController(editExpressionController),
     m_complexGraphCell(&m_model) {}
 
   // ViewController

apps/calculation/additional_outputs/complex_model.cpp

@@ -17,10 +17,10 @@ float ComplexModel::rangeBound(float direction, bool horizontal) const {
     maxFactor = k_maxHorizontalMarginFactor;
     value = real();
   }
-  if (std::isnan(value) || std::isinf(value) || value == 0.0f) {
-    return direction*maxFactor;
-  }
   float factor = direction*value >= 0.0f ? maxFactor : minFactor;
+  if (std::isnan(value) || std::isinf(value) || value == 0.0f) {
+    return direction*factor;
+  }
   return factor*value;
 }
 

apps/calculation/additional_outputs/complex_model.h

@@ -2,6 +2,7 @@
 #define CALCULATION_ADDITIONAL_OUTPUTS_COMPLEX_MODEL_H
 
 #include "../../shared/curve_view_range.h"
+#include "illustrated_list_controller.h"
 #include <complex>
 
 namespace Calculation {
@@ -17,11 +18,53 @@ public:
 
   void setComplex(std::complex<float> c) { *this = ComplexModel(c); }
 
-
+  /* The range is computed from these criteria:
-  static constexpr float k_minVerticalMarginFactor = -0.5f;
+   * - The real part is centered horizontally
-  static constexpr float k_maxVerticalMarginFactor = 1.2f;
+   * - Both left and right margins are equal to the real length
+   * - The imaginary part is the same length as the real part
+   * - The remaining vertical margin are splitted as one third at the top, 2
+   *   thirds at the bottom
+   *
+   *           |                        | 1/3 * vertical_margin
+   *           +----------+
+   *           |        / |             |
+   *           |      /   |             | Imaginary
+   *           |    /     |             |
+   *           |  /       |             |
+   * ----------+----------+----------
+   *                                    |
+   *                                    | 2/3 * vertical_margin
+   *           -----------
+   *              Real
+   *
+   */
+  // Horizontal range
   static constexpr float k_minHorizontalMarginFactor = -1.0f;
   static constexpr float k_maxHorizontalMarginFactor = 2.0f;
+  // Vertical range
+  static constexpr KDCoordinate k_width = Ion::Display::Width - Metric::PopUpRightMargin - Metric::PopUpLeftMargin;
+  static constexpr KDCoordinate k_height = IllustratedListController::k_illustrationHeight;
+  static constexpr KDCoordinate k_unit = k_width/3;
+  /*
+   *  VerticalMaring = k_height - k_unit
+   *
+   *  Values | Coordinates
+   * --------+----------------------------------
+   *  imag   |  k_unit
+   *  Ymax   |  k_unit + (1/3)*VerticalMargin
+   *  Ymin   |  -(2/3)*VerticalMargin
+   *
+   * Thus:
+   * Ymin = -(2/3)*k_verticalMargin*imag/k_unit
+   *      = -(2/3)*(k_height/k_unit - 1)*imag
+   *      = 2/3*(1 - k_height/k_unit)*imag
+   * Ymax = (k_unit + (1/3)*VerticalMargin)*imag/k_unit
+   *      = (1 + (1/3)*(k_height/k_unit - 1))*imag
+   *      = 1/3*(2 + k_height/k_unit)*imag
+   *
+   * */
+  static constexpr float k_minVerticalMarginFactor = 2.0f/3.0f*(1.0f - (float)k_height/(float)k_unit);
+  static constexpr float k_maxVerticalMarginFactor = 1.0f/3.0f*(2.0f + (float)k_height/(float)k_unit);
 
 private:
   float rangeBound(float direction, bool horizontal) const;

apps/calculation/additional_outputs/expression_with_equal_sign_view.h

@@ -4,13 +4,14 @@
 #include <escher.h>
 #include <apps/i18n.h>
 #include <poincare/layout.h>
+#include <escher/palette.h>
 
 namespace Calculation {
 
 class ExpressionWithEqualSignView : public ExpressionView {
 public:
   ExpressionWithEqualSignView() :
-    m_equalSign(KDFont::LargeFont, I18n::Message::Equal, 0.5f, 0.5f, KDColorBlack)
+    m_equalSign(KDFont::LargeFont, I18n::Message::Equal, 0.5f, 0.5f, Palette::PrimaryText)
   {}
   KDSize minimalSizeForOptimalDisplay() const override;
   void drawRect(KDContext * ctx, KDRect rect) const override;

apps/calculation/additional_outputs/expressions_list_controller.cpp

@@ -7,11 +7,11 @@ namespace Calculation {
 
 /* Expressions list controller */
 
-ExpressionsListController::ExpressionsListController(Responder * parentResponder, EditExpressionController * editExpressionController) :
+ExpressionsListController::ExpressionsListController(EditExpressionController * editExpressionController) :
-  ListController(parentResponder, editExpressionController),
+  ListController(editExpressionController),
   m_cells{}
 {
-  for (int i = 0; i < k_maxNumberOfCells; i++) {
+  for (int i = 0; i < k_maxNumberOfRows; i++) {
     m_cells[i].setParentResponder(m_listController.selectableTableView());
   }
 }
@@ -21,15 +21,20 @@ void ExpressionsListController::didEnterResponderChain(Responder * previousFirst
 }
 
 int ExpressionsListController::reusableCellCount(int type) {
-  return k_maxNumberOfCells;
+  return k_maxNumberOfRows;
 }
 
 void ExpressionsListController::viewDidDisappear() {
   ListController::viewDidDisappear();
-  // Reset cell memoization to avoid taking extra space in the pool
+  // Reset layout and cell memoization to avoid taking extra space in the pool
-  for (int i = 0; i < k_maxNumberOfCells; i++) {
+  for (int i = 0; i < k_maxNumberOfRows; i++) {
     m_cells[i].setLayout(Layout());
+    /* By reseting m_layouts, numberOfRow will go down to 0, and the highlighted
+     * cells won't be unselected. Therefore we unselect them here. */
+    m_cells[i].setHighlighted(false);
+    m_layouts[i] = Layout();
   }
+  m_expression = Expression();
 }
 
 HighlightCell * ExpressionsListController::reusableCell(int index, int type) {
@@ -38,31 +43,39 @@ HighlightCell * ExpressionsListController::reusableCell(int index, int type) {
 
 KDCoordinate ExpressionsListController::rowHeight(int j) {
   Layout l = layoutAtIndex(j);
-  if (l.isUninitialized()) {
+  assert(!l.isUninitialized());
-    return 0;
-  }
   return l.layoutSize().height() + 2 * Metric::CommonSmallMargin + Metric::CellSeparatorThickness;
 }
 
 void ExpressionsListController::willDisplayCellForIndex(HighlightCell * cell, int index) {
+  /* Note : To further optimize memoization space in the pool, layout
+   * serialization could be memoized instead, and layout would be recomputed
+   * here, when setting cell's layout. */
   ExpressionTableCellWithPointer * myCell = static_cast<ExpressionTableCellWithPointer *>(cell);
   myCell->setLayout(layoutAtIndex(index));
   myCell->setAccessoryMessage(messageAtIndex(index));
   myCell->reloadScroll();
 }
 
+int ExpressionsListController::numberOfRows() const {
+  int nbOfRows = 0;
+  for (size_t i = 0; i < k_maxNumberOfRows; i++) {
+    if (!m_layouts[i].isUninitialized()) {
+      nbOfRows++;
+    }
+  }
+  return nbOfRows;
+}
+
 void ExpressionsListController::setExpression(Poincare::Expression e) {
   // Reinitialize memoization
-  for (int i = 0; i < k_maxNumberOfCells; i++) {
+  for (int i = 0; i < k_maxNumberOfRows; i++) {
     m_layouts[i] = Layout();
   }
   m_expression = e;
 }
 
 Poincare::Layout ExpressionsListController::layoutAtIndex(int index) {
-  if (m_layouts[index].isUninitialized()) {
-    computeLayoutAtIndex(index);
-  }
   assert(!m_layouts[index].isUninitialized());
   return m_layouts[index];
 }

apps/calculation/additional_outputs/expressions_list_controller.h

@@ -10,7 +10,7 @@ namespace Calculation {
 
 class ExpressionsListController : public ListController {
 public:
-  ExpressionsListController(Responder * parentResponder, EditExpressionController * editExpressionController);
+  ExpressionsListController(EditExpressionController * editExpressionController);
 
   // Responder
   void viewDidDisappear() override;
@@ -22,22 +22,22 @@ public:
   KDCoordinate rowHeight(int j) override;
   int typeAtLocation(int i, int j) override { return 0; }
   void willDisplayCellForIndex(HighlightCell * cell, int index) override;
+  int numberOfRows() const override;
 
   // IllustratedListController
   void setExpression(Poincare::Expression e) override;
 
 protected:
-  constexpr static int k_maxNumberOfCells = 4;
+  constexpr static int k_maxNumberOfRows = 5;
-  virtual int textAtIndex(char * buffer, size_t bufferSize, int index) override;
+  int textAtIndex(char * buffer, size_t bufferSize, int index) override;
   Poincare::Expression m_expression;
   // Memoization of layouts
-  mutable Poincare::Layout m_layouts[k_maxNumberOfCells];
+  mutable Poincare::Layout m_layouts[k_maxNumberOfRows];
 private:
   Poincare::Layout layoutAtIndex(int index);
-  virtual void computeLayoutAtIndex(int index) = 0;
   virtual I18n::Message messageAtIndex(int index) = 0;
   // Cells
-  ExpressionTableCellWithPointer m_cells[k_maxNumberOfCells];
+  ExpressionTableCellWithPointer m_cells[k_maxNumberOfRows];
 };
 
 }

apps/calculation/additional_outputs/illustrated_list_controller.cpp

@@ -1,4 +1,5 @@
 #include "illustrated_list_controller.h"
+#include <poincare/exception_checkpoint.h>
 #include <poincare/symbol.h>
 #include "../app.h"
 
@@ -8,8 +9,9 @@ namespace Calculation {
 
 /* Illustrated list controller */
 
-IllustratedListController::IllustratedListController(Responder * parentResponder, EditExpressionController * editExpressionController) :
+IllustratedListController::IllustratedListController(EditExpressionController * editExpressionController) :
-  ListController(parentResponder, editExpressionController, this),
+  ListController(editExpressionController, this),
+  m_calculationStore(m_calculationStoreBuffer, k_calculationStoreBufferSize),
   m_additionalCalculationCells{}
 {
   for (int i = 0; i < k_maxNumberOfAdditionalCalculations; i++) {
@@ -78,7 +80,8 @@ KDCoordinate IllustratedListController::rowHeight(int j) {
     return 0;
   }
   Shared::ExpiringPointer<Calculation> calculation = m_calculationStore.calculationAtIndex(calculationIndex);
-  return calculation->height(App::app()->localContext(), true, true) + 2 * Metric::CommonSmallMargin + Metric::CellSeparatorThickness;
+  constexpr bool expanded = true;
+  return calculation->height(expanded) + Metric::CellSeparatorThickness;
 }
 
 int IllustratedListController::typeAtLocation(int i, int j) {
@@ -87,7 +90,6 @@ int IllustratedListController::typeAtLocation(int i, int j) {
 
 void IllustratedListController::willDisplayCellForIndex(HighlightCell * cell, int index) {
   if (index == 0) {
-    // TODO ?
     return;
   }
   Poincare::Context * context = App::app()->localContext();
@@ -95,7 +97,6 @@ void IllustratedListController::willDisplayCellForIndex(HighlightCell * cell, in
   Calculation * c = m_calculationStore.calculationAtIndex(index-1).pointer();
   myCell->setCalculation(c);
   myCell->setDisplayCenter(c->displayOutput(context) != Calculation::DisplayOutput::ApproximateOnly);
-  //myCell->setHighlighted(myCell->isHighlighted()); //TODO??
 }
 
 void IllustratedListController::tableViewDidChangeSelection(SelectableTableView * t, int previousSelectedCellX, int previousSelectedCellY, bool withinTemporarySelection) {

apps/calculation/additional_outputs/illustrated_list_controller.h

@@ -11,7 +11,7 @@ namespace Calculation {
 
 class IllustratedListController : public ListController, public SelectableTableViewDelegate {
 public:
-  IllustratedListController(Responder * parentResponder, EditExpressionController * editExpressionController);
+  IllustratedListController(EditExpressionController * editExpressionController);
 
   // Responder
   void viewDidDisappear() override;
@@ -31,14 +31,18 @@ public:
   // IllustratedListController
   void setExpression(Poincare::Expression e) override;
 
-  constexpr static KDCoordinate k_illustrationHeight = 100;
+  constexpr static KDCoordinate k_illustrationHeight = 120;
 protected:
+  static KDCoordinate CalculationHeight(Calculation * c, bool expanded) { return ScrollableThreeExpressionsCell::Height(c); }
   Poincare::Expression m_savedExpression;
   CalculationStore m_calculationStore;
 private:
   int textAtIndex(char * buffer, size_t bufferSize, int index) override;
   virtual CodePoint expressionSymbol() const = 0;
+  // Set the size of the buffer needed to store the additional calculation
   constexpr static int k_maxNumberOfAdditionalCalculations = 4;
+  constexpr static int k_calculationStoreBufferSize = k_maxNumberOfAdditionalCalculations * (sizeof(Calculation) + Calculation::k_numberOfExpressions * Constant::MaxSerializedExpressionSize + sizeof(Calculation *));
+  char m_calculationStoreBuffer[k_calculationStoreBufferSize];
   // Cells
   virtual HighlightCell * illustrationCell() = 0;
   ScrollableThreeExpressionsCell m_additionalCalculationCells[k_maxNumberOfAdditionalCalculations];

apps/calculation/additional_outputs/illustration_cell.cpp

@@ -10,7 +10,7 @@ void IllustrationCell::layoutSubviews(bool force) {
 }
 
 void IllustrationCell::drawRect(KDContext * ctx, KDRect rect) const {
-  drawBorderOfRect(ctx, bounds(), Palette::GreyBright);
+  drawBorderOfRect(ctx, bounds(), Palette::ListCellBorder);
 }
 
 }

apps/calculation/additional_outputs/integer_list_controller.cpp

@@ -1,6 +1,8 @@
 #include "integer_list_controller.h"
 #include <poincare/based_integer.h>
+#include <poincare/opposite.h>
 #include <poincare/integer.h>
+#include <poincare/logarithm.h>
 #include <poincare/empty_layout.h>
 #include <poincare/factor.h>
 #include "../app.h"
@@ -11,10 +13,6 @@ using namespace Shared;
 
 namespace Calculation {
 
-int IntegerListController::numberOfRows() const {
-  return 3 + factorExpressionIsComputable();
-}
-
 Integer::Base baseAtIndex(int index) {
   switch (index) {
     case 0:
@@ -27,15 +25,40 @@ Integer::Base baseAtIndex(int index) {
   }
 }
 
-void IntegerListController::computeLayoutAtIndex(int index) {
+void IntegerListController::setExpression(Poincare::Expression e) {
-  if (!m_layouts[index].isUninitialized()) {
+  ExpressionsListController::setExpression(e);
-    return;
+  static_assert(k_maxNumberOfRows >= k_indexOfFactorExpression + 1, "k_maxNumberOfRows must be greater than k_indexOfFactorExpression");
+  assert(!m_expression.isUninitialized() && m_expression.type() == ExpressionNode::Type::BasedInteger || (m_expression.type() == ExpressionNode::Type::Opposite && m_expression.childAtIndex(0).type() == ExpressionNode::Type::BasedInteger));
+  assert(!m_expression.isUninitialized());
+
+  if (m_expression.type() == ExpressionNode::Type::BasedInteger) {
+    Integer integer = static_cast<BasedInteger &>(m_expression).integer();
+    for (int index = 0; index < k_indexOfFactorExpression; ++index) {
+      m_layouts[index] = integer.createLayout(baseAtIndex(index));
+    }
+  }
+  else
+  {
+    Opposite b = static_cast<Opposite &>(m_expression);
+    Expression e = b.childAtIndex(0);
+    Integer childInt = static_cast<BasedInteger &>(e).integer();
+    childInt.setNegative(true);
+    Integer num_bits = Integer::CeilingLog2(childInt);
+    Integer integer = Integer::TwosComplementToBits(childInt, num_bits);
+    for (int index = 0; index < k_indexOfFactorExpression; ++index) {
+      if(baseAtIndex(index) == Integer::Base::Decimal) {
+        m_layouts[index] = childInt.createLayout(baseAtIndex(index));
+      } else {
+        m_layouts[index] = integer.createLayout(baseAtIndex(index));
+      }
+    }
+  }
+  // Computing factorExpression
+  Expression factor = Factor::Builder(m_expression.clone());
+  PoincareHelpers::Simplify(&factor, App::app()->localContext(), ExpressionNode::ReductionTarget::User);
+  if (!factor.isUndefined()) {
+    m_layouts[k_indexOfFactorExpression] = PoincareHelpers::CreateLayout(factor);
   }
-  assert(m_expression.type() == ExpressionNode::Type::BasedInteger);
-  // For index = k_indexOfFactorExpression, the layout is assumed to be alreday memoized because it is needed to compute the numberOfRows
-  assert(index < k_indexOfFactorExpression);
-  Integer i = static_cast<BasedInteger &>(m_expression).integer();
-  m_layouts[index] = i.createLayout(baseAtIndex(index));
 }
 
 I18n::Message IntegerListController::messageAtIndex(int index) {
@@ -51,20 +74,4 @@ I18n::Message IntegerListController::messageAtIndex(int index) {
   }
 }
 
-bool IntegerListController::factorExpressionIsComputable() const {
-  if (!m_layouts[k_indexOfFactorExpression].isUninitialized()) {
-    // The factor expression is already memoized
-    return !m_layouts[k_indexOfFactorExpression].isEmpty();
-  }
-  Poincare::Context * context = App::app()->localContext();
-  Expression factor = Factor::Builder(m_expression.clone());
-  PoincareHelpers::Simplify(&factor, context, ExpressionNode::ReductionTarget::User);
-  if (!factor.isUndefined()) {
-    m_layouts[k_indexOfFactorExpression] = PoincareHelpers::CreateLayout(factor);
-    return true;
-  }
-  m_layouts[k_indexOfFactorExpression] = EmptyLayout::Builder();
-  return false;
-
-}
 }

apps/calculation/additional_outputs/integer_list_controller.h

@@ -8,15 +8,13 @@ namespace Calculation {
 class IntegerListController : public ExpressionsListController {
 public:
   IntegerListController(EditExpressionController * editExpressionController) :
-    ExpressionsListController(nullptr, editExpressionController) {}
+    ExpressionsListController(editExpressionController) {}
+
+  void setExpression(Poincare::Expression e) override;
 
-  //ListViewDataSource
-  int numberOfRows() const override;
 private:
   static constexpr int k_indexOfFactorExpression = 3;
-  void computeLayoutAtIndex(int index) override;
   I18n::Message messageAtIndex(int index) override;
-  bool factorExpressionIsComputable() const;
 };
 
 }

apps/calculation/additional_outputs/list_controller.cpp

@@ -21,8 +21,8 @@ void ListController::InnerListController::didBecomeFirstResponder() {
 
 /* List Controller */
 
-ListController::ListController(Responder * parentResponder, EditExpressionController * editExpressionController, SelectableTableViewDelegate * delegate) :
+ListController::ListController(EditExpressionController * editExpressionController, SelectableTableViewDelegate * delegate) :
-  StackViewController(parentResponder, &m_listController, Palette::ToolboxHeaderText, Palette::ToolboxHeaderBackground, Palette::ToolboxHeaderBorder),
+  StackViewController(nullptr, &m_listController, Palette::ToolboxHeaderText, Palette::ToolboxHeaderBackground, Palette::ToolboxHeaderBorder),
   m_listController(this, delegate),
   m_editExpressionController(editExpressionController)
 {
@@ -38,7 +38,6 @@ bool ListController::handleEvent(Ion::Events::Event event) {
      * insertTextBody. */
     Container::activeApp()->dismissModalViewController();
     m_editExpressionController->insertTextBody(buffer);
-    Container::activeApp()->setFirstResponder(m_editExpressionController);
     return true;
   }
   return false;

apps/calculation/additional_outputs/list_controller.h

@@ -10,7 +10,7 @@ class EditExpressionController;
 
 class ListController : public StackViewController, public ListViewDataSource, public SelectableTableViewDataSource {
 public:
-  ListController(Responder * parentResponder, EditExpressionController * editExpressionController, SelectableTableViewDelegate * delegate = nullptr);
+  ListController(EditExpressionController * editExpressionController, SelectableTableViewDelegate * delegate = nullptr);
 
   // Responder
   bool handleEvent(Ion::Events::Event event) override;

apps/calculation/additional_outputs/matrix_list_controller.cpp

@@ -0,0 +1,106 @@
+#include "matrix_list_controller.h"
+#include "../app.h"
+#include "../../shared/poincare_helpers.h"
+#include <apps/global_preferences.h>
+#include <poincare_nodes.h>
+#include <poincare/matrix.h>
+#include <string.h>
+
+using namespace Poincare;
+using namespace Shared;
+
+namespace Calculation {
+
+void MatrixListController::setExpression(Poincare::Expression e) {
+  ExpressionsListController::setExpression(e);
+  assert(!m_expression.isUninitialized());
+  static_assert(k_maxNumberOfRows >= k_maxNumberOfOutputRows, "k_maxNumberOfRows must be greater than k_maxNumberOfOutputRows");
+
+  Poincare::Preferences * preferences = Poincare::Preferences::sharedPreferences();
+  Poincare::Preferences::ComplexFormat currentComplexFormat = preferences->complexFormat();
+  if (currentComplexFormat == Poincare::Preferences::ComplexFormat::Real) {
+    /* Temporary change complex format to avoid all additional expressions to be
+     * "unreal" (with [i] for instance). As additional results are computed from
+     * the output, which is built taking ComplexFormat into account, there are
+     * no risks of displaying additional results on an unreal output. */
+    preferences->setComplexFormat(Poincare::Preferences::ComplexFormat::Cartesian);
+  }
+
+  Context * context = App::app()->localContext();
+  ExpressionNode::ReductionContext reductionContext(
+    context,
+    preferences->complexFormat(),
+    preferences->angleUnit(),
+    GlobalPreferences::sharedGlobalPreferences()->unitFormat(),
+    ExpressionNode::ReductionTarget::SystemForApproximation,
+    ExpressionNode::SymbolicComputation::ReplaceAllSymbolsWithDefinitionsOrUndefined);
+
+  // The expression must be reduced to call methods such as determinant or trace
+  assert(m_expression.type() == ExpressionNode::Type::Matrix);
+
+  bool mIsSquared = (static_cast<Matrix &>(m_expression).numberOfRows() == static_cast<Matrix &>(m_expression).numberOfColumns());
+  size_t index = 0;
+  size_t messageIndex = 0;
+  // 1. Matrix determinant if square matrix
+  if (mIsSquared) {
+    /* Determinant is reduced so that a null determinant can be detected.
+     * However, some exceptions remain such as cos(x)^2+sin(x)^2-1 which will
+     * not be reduced to a rational, but will be null in theory. */
+    Expression determinant = Determinant::Builder(m_expression.clone()).reduce(reductionContext);
+    m_indexMessageMap[index] = messageIndex++;
+    m_layouts[index++] = getLayoutFromExpression(determinant, context, preferences);
+    // 2. Matrix inverse if invertible matrix
+    // A squared matrix is invertible if and only if determinant is non null
+    if (!determinant.isUndefined() && determinant.nullStatus(context) != ExpressionNode::NullStatus::Null) {
+      // TODO: Handle ExpressionNode::NullStatus::Unknown
+      m_indexMessageMap[index] = messageIndex++;
+      m_layouts[index++] = getLayoutFromExpression(MatrixInverse::Builder(m_expression.clone()), context, preferences);
+    }
+  }
+  // 3. Matrix row echelon form
+  messageIndex = 2;
+  Expression rowEchelonForm = MatrixRowEchelonForm::Builder(m_expression.clone());
+  m_indexMessageMap[index] = messageIndex++;
+  m_layouts[index++] = getLayoutFromExpression(rowEchelonForm, context, preferences);
+  /* 4. Matrix reduced row echelon form
+   *    it can be computed from row echelon form to save computation time.*/
+  m_indexMessageMap[index] = messageIndex++;
+  m_layouts[index++] = getLayoutFromExpression(MatrixReducedRowEchelonForm::Builder(rowEchelonForm), context, preferences);
+  // 5. Matrix trace if square matrix
+  if (mIsSquared) {
+    m_indexMessageMap[index] = messageIndex++;
+    m_layouts[index++] = getLayoutFromExpression(MatrixTrace::Builder(m_expression.clone()), context, preferences);
+  }
+  // Reset complex format as before
+  preferences->setComplexFormat(currentComplexFormat);
+}
+
+Poincare::Layout MatrixListController::getLayoutFromExpression(Expression e, Context * context, Poincare::Preferences * preferences) {
+  assert(!e.isUninitialized());
+  // Simplify or approximate expression
+  Expression approximateExpression;
+  Expression simplifiedExpression;
+  e.simplifyAndApproximate(&simplifiedExpression, &approximateExpression, context,
+    preferences->complexFormat(), preferences->angleUnit(), GlobalPreferences::sharedGlobalPreferences()->unitFormat(),
+    ExpressionNode::SymbolicComputation::ReplaceAllSymbolsWithDefinitionsOrUndefined);
+  // simplify might have been interrupted, in which case we use approximate
+  if (simplifiedExpression.isUninitialized()) {
+    assert(!approximateExpression.isUninitialized());
+    return Shared::PoincareHelpers::CreateLayout(approximateExpression);
+  }
+  return Shared::PoincareHelpers::CreateLayout(simplifiedExpression);
+}
+
+I18n::Message MatrixListController::messageAtIndex(int index) {
+  // Message index is mapped in setExpression because it depends on the Matrix.
+  assert(index < k_maxNumberOfOutputRows && index >=0);
+  I18n::Message messages[k_maxNumberOfOutputRows] = {
+    I18n::Message::AdditionalDeterminant,
+    I18n::Message::AdditionalInverse,
+    I18n::Message::AdditionalRowEchelonForm,
+    I18n::Message::AdditionalReducedRowEchelonForm,
+    I18n::Message::AdditionalTrace};
+  return messages[m_indexMessageMap[index]];
+}
+
+}

apps/calculation/additional_outputs/matrix_list_controller.h

@@ -0,0 +1,27 @@
+#ifndef CALCULATION_ADDITIONAL_OUTPUTS_MATRIX_LIST_CONTROLLER_H
+#define CALCULATION_ADDITIONAL_OUTPUTS_MATRIX_LIST_CONTROLLER_H
+
+#include "expressions_list_controller.h"
+
+namespace Calculation {
+
+class MatrixListController : public ExpressionsListController {
+public:
+  MatrixListController(EditExpressionController * editExpressionController) :
+    ExpressionsListController(editExpressionController) {}
+
+  void setExpression(Poincare::Expression e) override;
+
+private:
+  I18n::Message messageAtIndex(int index) override;
+  Poincare::Layout getLayoutFromExpression(Poincare::Expression e, Poincare::Context * context, Poincare::Preferences * preferences);
+  // Map from cell index to message index
+  constexpr static int k_maxNumberOfOutputRows = 5;
+  int m_indexMessageMap[k_maxNumberOfOutputRows];
+};
+
+}
+
+#endif
+
+

apps/calculation/additional_outputs/rational_list_controller.cpp

@@ -9,34 +9,31 @@ using namespace Shared;
 
 namespace Calculation {
 
-int RationalListController::numberOfRows() const {
-  return 2;
-}
-
 Integer extractInteger(const Expression e) {
   assert(e.type() == ExpressionNode::Type::BasedInteger);
   return static_cast<const BasedInteger &>(e).integer();
 }
 
-void RationalListController::computeLayoutAtIndex(int index) {
+void RationalListController::setExpression(Poincare::Expression e) {
+  ExpressionsListController::setExpression(e);
+  assert(!m_expression.isUninitialized());
+  static_assert(k_maxNumberOfRows >= 2, "k_maxNumberOfRows must be greater than 2");
+
   bool negative = false;
   Expression div = m_expression;
   if (m_expression.type() == ExpressionNode::Type::Opposite) {
     negative = true;
     div = m_expression.childAtIndex(0);
   }
+
   assert(div.type() == ExpressionNode::Type::Division);
   Integer numerator = extractInteger(div.childAtIndex(0));
   numerator.setNegative(negative);
   Integer denominator = extractInteger(div.childAtIndex(1));
-  Expression e;
+
-  if (index == 0) {
+  int index = 0;
-    e = Integer::CreateMixedFraction(numerator, denominator);
+  m_layouts[index++] = PoincareHelpers::CreateLayout(Integer::CreateMixedFraction(numerator, denominator));
-  } else {
+  m_layouts[index++] = PoincareHelpers::CreateLayout(Integer::CreateEuclideanDivision(numerator, denominator));
-    assert(index == 1);
-    e = Integer::CreateEuclideanDivision(numerator, denominator);
-  }
-  m_layouts[index] = PoincareHelpers::CreateLayout(e);
 }
 
 I18n::Message RationalListController::messageAtIndex(int index) {

apps/calculation/additional_outputs/rational_list_controller.h

@@ -8,12 +8,11 @@ namespace Calculation {
 class RationalListController : public ExpressionsListController {
 public:
   RationalListController(EditExpressionController * editExpressionController) :
-    ExpressionsListController(nullptr, editExpressionController) {}
+    ExpressionsListController(editExpressionController) {}
+
+  void setExpression(Poincare::Expression e) override;
 
-  //ListViewDataSource
-  int numberOfRows() const override;
 private:
-  void computeLayoutAtIndex(int index) override;
   I18n::Message messageAtIndex(int index) override;
   int textAtIndex(char * buffer, size_t bufferSize, int index) override;
 };

apps/calculation/additional_outputs/scrollable_three_expressions_cell.cpp

@@ -8,7 +8,8 @@ void ScrollableThreeExpressionsView::resetMemoization() {
   setLayouts(Poincare::Layout(), Poincare::Layout(), Poincare::Layout());
 }
 
-void ScrollableThreeExpressionsView::setCalculation(Calculation * calculation) {
+// TODO: factorize with HistoryViewCell!
+void ScrollableThreeExpressionsView::setCalculation(Calculation * calculation, bool canChangeDisplayOutput) {
   Poincare::Context * context = App::app()->localContext();
 
   // Clean the layouts to make room in the pool
@@ -23,10 +24,10 @@ void ScrollableThreeExpressionsView::setCalculation(Calculation * calculation) {
     bool couldNotCreateExactLayout = false;
     exactOutputLayout = calculation->createExactOutputLayout(&couldNotCreateExactLayout);
     if (couldNotCreateExactLayout) {
-      if (calculation->displayOutput(context) == ::Calculation::Calculation::DisplayOutput::ExactOnly) {
+      if (canChangeDisplayOutput && calculation->displayOutput(context) != ::Calculation::Calculation::DisplayOutput::ExactOnly) {
-        Poincare::ExceptionCheckpoint::Raise();
-      } else {
         calculation->forceDisplayOutput(::Calculation::Calculation::DisplayOutput::ApproximateOnly);
+      } else {
+        Poincare::ExceptionCheckpoint::Raise();
       }
     }
   }
@@ -40,9 +41,7 @@ void ScrollableThreeExpressionsView::setCalculation(Calculation * calculation) {
     bool couldNotCreateApproximateLayout = false;
     approximateOutputLayout = calculation->createApproximateOutputLayout(context, &couldNotCreateApproximateLayout);
     if (couldNotCreateApproximateLayout) {
-      if (calculation->displayOutput(context) == ::Calculation::Calculation::DisplayOutput::ApproximateOnly) {
+      if (canChangeDisplayOutput && calculation->displayOutput(context) != ::Calculation::Calculation::DisplayOutput::ApproximateOnly) {
-        Poincare::ExceptionCheckpoint::Raise();
-      } else {
         /* Set the display output to ApproximateOnly, make room in the pool by
          * erasing the exact layout, and retry to create the approximate layout */
         calculation->forceDisplayOutput(::Calculation::Calculation::DisplayOutput::ApproximateOnly);
@@ -52,6 +51,8 @@ void ScrollableThreeExpressionsView::setCalculation(Calculation * calculation) {
         if (couldNotCreateApproximateLayout) {
           Poincare::ExceptionCheckpoint::Raise();
         }
+      } else {
+        Poincare::ExceptionCheckpoint::Raise();
       }
     }
 
@@ -65,6 +66,18 @@ void ScrollableThreeExpressionsView::setCalculation(Calculation * calculation) {
   layoutSubviews();
 }
 
+KDCoordinate ScrollableThreeExpressionsCell::Height(Calculation * calculation) {
+  ScrollableThreeExpressionsCell cell;
+  cell.setCalculation(calculation, true);
+  KDRect leftFrame = KDRectZero;
+  KDRect centerFrame = KDRectZero;
+  KDRect approximateSignFrame = KDRectZero;
+  KDRect rightFrame = KDRectZero;
+  cell.subviewFrames(&leftFrame, &centerFrame, &approximateSignFrame, &rightFrame);
+  KDRect unionedFrame = leftFrame.unionedWith(centerFrame).unionedWith(rightFrame);
+  return unionedFrame.height() + 2 * ScrollableThreeExpressionsView::k_margin;
+}
+
 void ScrollableThreeExpressionsCell::didBecomeFirstResponder() {
   reinitSelection();
   Container::activeApp()->setFirstResponder(&m_view);
@@ -75,8 +88,8 @@ void ScrollableThreeExpressionsCell::reinitSelection() {
   m_view.reloadScroll();
 }
 
-void ScrollableThreeExpressionsCell::setCalculation(Calculation * calculation) {
+void ScrollableThreeExpressionsCell::setCalculation(Calculation * calculation, bool canChangeDisplayOutput) {
-  m_view.setCalculation(calculation);
+  m_view.setCalculation(calculation, canChangeDisplayOutput);
   layoutSubviews();
 }
 

apps/calculation/additional_outputs/scrollable_three_expressions_cell.h

@@ -5,22 +5,30 @@
 #include "../../shared/scrollable_multiple_expressions_view.h"
 #include "../calculation.h"
 #include "expression_with_equal_sign_view.h"
+#include <escher/palette.h>
 
 namespace Calculation {
 
+/* TODO There is factorizable code between this and Calculation::HistoryViewCell
+ * (at least setCalculation). */
+
 class ScrollableThreeExpressionsView : public Shared::AbstractScrollableMultipleExpressionsView {
 public:
+  static constexpr KDCoordinate k_margin = Metric::CommonSmallMargin;
   ScrollableThreeExpressionsView(Responder * parentResponder) : Shared::AbstractScrollableMultipleExpressionsView(parentResponder, &m_contentCell), m_contentCell() {
-    setMargins(Metric::CommonSmallMargin, Metric::CommonSmallMargin, Metric::CommonSmallMargin, Metric::CommonSmallMargin); // Left Right margins are already added by TableCell
+    setMargins(k_margin, k_margin, k_margin, k_margin); // Left Right margins are already added by TableCell
-    setBackgroundColor(KDColorWhite);
+    setBackgroundColor(Palette::BackgroundApps);
   }
   void resetMemoization();
-  void setCalculation(Calculation * calculation);
+  void setCalculation(Calculation * calculation, bool canChangeDisplayOutput);
+  void subviewFrames(KDRect * leftFrame, KDRect * centerFrame, KDRect * approximateSignFrame, KDRect * rightFrame) {
+    return m_contentCell.subviewFrames(leftFrame, centerFrame, approximateSignFrame, rightFrame);
+  }
 private:
   class ContentCell : public Shared::AbstractScrollableMultipleExpressionsView::ContentCell {
   public:
     ContentCell() : m_leftExpressionView() {}
-    KDColor backgroundColor() const override { return KDColorWhite; }
+    KDColor backgroundColor() const override { return Palette::BackgroundApps; }
     void setEven(bool even) override { return; }
     ExpressionView * leftExpressionView() const override { return const_cast<ExpressionWithEqualSignView *>(&m_leftExpressionView); }
   private:
@@ -28,12 +36,13 @@ private:
   };
 
   ContentCell *  contentCell() override { return &m_contentCell; };
-  const ContentCell *  constContentCell() const override { return &m_contentCell; };
+  const ContentCell * constContentCell() const override { return &m_contentCell; };
   ContentCell m_contentCell;
 };
 
 class ScrollableThreeExpressionsCell : public TableCell, public Responder {
 public:
+  static KDCoordinate Height(Calculation * calculation);
   ScrollableThreeExpressionsCell() :
     Responder(nullptr),
     m_view(this) {}
@@ -52,12 +61,15 @@ public:
 
   void setHighlighted(bool highlight) override { m_view.evenOddCell()->setHighlighted(highlight); }
   void resetMemoization() { m_view.resetMemoization(); }
-  void setCalculation(Calculation * calculation);
+  void setCalculation(Calculation * calculation, bool canChangeDisplayOutput = false);
   void setDisplayCenter(bool display);
   ScrollableThreeExpressionsView::SubviewPosition selectedSubviewPosition() { return m_view.selectedSubviewPosition(); }
   void setSelectedSubviewPosition(ScrollableThreeExpressionsView::SubviewPosition subviewPosition) { m_view.setSelectedSubviewPosition(subviewPosition); }
 
   void reinitSelection();
+  void subviewFrames(KDRect * leftFrame, KDRect * centerFrame, KDRect * approximateSignFrame, KDRect * rightFrame) {
+    return m_view.subviewFrames(leftFrame, centerFrame, approximateSignFrame, rightFrame);
+  }
 private:
   // Remove label margin added by TableCell because they're already handled by ScrollableThreeExpressionsView
   KDCoordinate labelMargin() const override { return 0; }

apps/calculation/additional_outputs/second_degree_list_controller.cpp

@@ -0,0 +1,320 @@
+#include "../app.h"
+#include <apps/global_preferences.h>
+#include "../../shared/poincare_helpers.h"
+#include <poincare/layout_helper.h>
+#include <poincare/code_point_layout.h>
+#include <poincare/rational.h>
+#include <poincare/opposite.h>
+#include <poincare/addition.h>
+#include <poincare/parenthesis.h>
+#include <poincare/equal.h>
+#include <poincare/subtraction.h>
+#include <poincare/multiplication.h>
+#include <poincare/division.h>
+#include <poincare/square_root.h>
+#include <poincare/symbol.h>
+#include <poincare/power.h>
+#include "second_degree_list_controller.h"
+
+using namespace Poincare;
+using namespace Shared;
+
+namespace Calculation {
+
+void SecondDegreeListController::setExpression(Poincare::Expression e) {
+  ExpressionsListController::setExpression(e);
+  assert(!m_expression.isUninitialized());
+
+  Expression polynomialCoefficients[Expression::k_maxNumberOfPolynomialCoefficients];
+
+  Context * context = App::app()->localContext();
+  Preferences * preferences = Preferences::sharedPreferences();
+  Poincare::ExpressionNode::ReductionContext reductionContext = Poincare::ExpressionNode::ReductionContext(context,
+          preferences->complexFormat(), preferences->angleUnit(),
+          GlobalPreferences::sharedGlobalPreferences()->unitFormat(),
+          ExpressionNode::ReductionTarget::SystemForApproximation,
+          ExpressionNode::SymbolicComputation::ReplaceAllDefinedSymbolsWithDefinition,
+          Poincare::ExpressionNode::UnitConversion::Default);
+
+  PoincareHelpers::Reduce(&m_expression, context, ExpressionNode::ReductionTarget::SystemForAnalysis);
+
+  int degree = m_expression.getPolynomialReducedCoefficients(
+          "x",
+          polynomialCoefficients,
+          context,
+          Expression::UpdatedComplexFormatWithExpressionInput(preferences->complexFormat(), m_expression, context),
+          preferences->angleUnit(),
+          GlobalPreferences::sharedGlobalPreferences()->unitFormat(),
+          ExpressionNode::SymbolicComputation::ReplaceAllDefinedSymbolsWithDefinition);
+
+  assert(degree == 2);
+
+  Expression a = polynomialCoefficients[2];
+  Expression b = polynomialCoefficients[1];
+  Expression c = polynomialCoefficients[0];
+
+  Expression delta = Subtraction::Builder(Power::Builder(b.clone(), Rational::Builder(2)), Multiplication::Builder(Rational::Builder(4), a.clone(), c.clone()));
+  PoincareHelpers::Simplify(&delta, context, ExpressionNode::ReductionTarget::SystemForApproximation);
+
+  // Alpha is -b/2a, but because after we use -α, we immediately store -α=-(-b/2a)=b/2a.
+  Expression minusAlpha = Division::Builder(b.clone(), Multiplication::Builder(Rational::Builder(2), a.clone()));
+  PoincareHelpers::Reduce(&minusAlpha, context, ExpressionNode::ReductionTarget::SystemForApproximation);
+
+  // Same thing for β
+  Expression minusBeta = Division::Builder(delta.clone(), Multiplication::Builder(Rational::Builder(4), a.clone()));
+  PoincareHelpers::Reduce(&minusBeta, context, ExpressionNode::ReductionTarget::SystemForApproximation);
+
+  enum MultiplicationTypeForA {
+    Nothing,
+    Minus,
+    Parenthesis,
+    Normal
+  };
+
+  MultiplicationTypeForA multiplicationTypeForA;
+
+  if (a.type() == ExpressionNode::Type::Rational && static_cast<const Rational &>(a).isOne()) {
+    multiplicationTypeForA = MultiplicationTypeForA::Nothing;
+  } else if(a.type() == ExpressionNode::Type::Rational &&  static_cast<const Rational &>(a).isMinusOne()){
+    multiplicationTypeForA = MultiplicationTypeForA::Minus;
+  } else if (a.type() == ExpressionNode::Type::Addition) {
+    multiplicationTypeForA = MultiplicationTypeForA::Parenthesis;
+  } else {
+    multiplicationTypeForA = MultiplicationTypeForA::Normal;
+  }
+
+  PoincareHelpers::Simplify(&a, context, ExpressionNode::ReductionTarget::User);
+
+  /*
+   * Because when can't apply reduce or simplify to keep the
+   * canonized form we must beautify the expression manually
+  */
+
+  Expression xMinusAlphaPowerTwo;
+  Expression alpha = getOppositeIfExists(minusAlpha, &reductionContext);
+
+  if (alpha.isUninitialized()) {
+    PoincareHelpers::Simplify(&minusAlpha, context, ExpressionNode::ReductionTarget::User);
+    xMinusAlphaPowerTwo = Power::Builder(Parenthesis::Builder(Addition::Builder(Symbol::Builder("x", strlen("x")), minusAlpha)), Rational::Builder(2));
+  } else {
+    PoincareHelpers::Simplify(&alpha, context, ExpressionNode::ReductionTarget::User);
+    xMinusAlphaPowerTwo = Power::Builder(Parenthesis::Builder(Subtraction::Builder(Symbol::Builder("x", strlen("x")), alpha)), Rational::Builder(2));
+  }
+
+  Expression xMinusAlphaPowerTwoWithFactor;
+
+  switch (multiplicationTypeForA)
+  {
+    case MultiplicationTypeForA::Nothing:
+      xMinusAlphaPowerTwoWithFactor = xMinusAlphaPowerTwo;
+      break;
+    case MultiplicationTypeForA::Minus:
+      xMinusAlphaPowerTwoWithFactor = Opposite::Builder(xMinusAlphaPowerTwo);
+      break;
+    case MultiplicationTypeForA::Parenthesis:
+      xMinusAlphaPowerTwoWithFactor = Multiplication::Builder(Parenthesis::Builder(a.clone()), xMinusAlphaPowerTwo);
+      break;
+    case MultiplicationTypeForA::Normal:
+      xMinusAlphaPowerTwoWithFactor = Multiplication::Builder(a.clone(), xMinusAlphaPowerTwo);
+      break;
+    default:
+      assert(false);
+      break;
+  }
+
+  Expression canonized;
+  PoincareHelpers::Simplify(&minusBeta, context, ExpressionNode::ReductionTarget::User);
+  Expression beta = getOppositeIfExists(minusBeta, &reductionContext);
+  if (beta.isUninitialized()) {
+    if (minusBeta.type() == ExpressionNode::Type::Addition || minusBeta.type() == ExpressionNode::Type::Subtraction) {
+      canonized = Subtraction::Builder(xMinusAlphaPowerTwoWithFactor, Parenthesis::Builder(minusBeta));
+    } else {
+      canonized = Subtraction::Builder(xMinusAlphaPowerTwoWithFactor, minusBeta);
+    }
+  } else {
+    PoincareHelpers::Simplify(&beta, context, ExpressionNode::ReductionTarget::User);
+    canonized = Addition::Builder(xMinusAlphaPowerTwoWithFactor, beta);
+  }
+
+  Expression x0;
+  Expression x1;
+
+  if (delta.nullStatus(context) == ExpressionNode::NullStatus::Null) {
+    // x0 = x1 = -b/(2a)
+    x0 = Division::Builder(Opposite::Builder(b.clone()), Multiplication::Builder(Rational::Builder(2), a.clone()));
+    m_numberOfSolutions = 1;
+    PoincareHelpers::Simplify(&x0, context, ExpressionNode::ReductionTarget::SystemForApproximation);
+  } else {
+    // x0 = (-b-sqrt(delta))/(2a)
+    x0 = Division::Builder(Subtraction::Builder(Opposite::Builder(b.clone()), SquareRoot::Builder(delta.clone())), Multiplication::Builder(Rational::Builder(2), a.clone()));
+    // x1 = (-b+sqrt(delta))/(2a)
+    x1 = Division::Builder(Addition::Builder(Opposite::Builder(b.clone()), SquareRoot::Builder(delta.clone())), Multiplication::Builder(Rational::Builder(2), a.clone()));
+    m_numberOfSolutions = 2;
+    PoincareHelpers::Simplify(&x0, context, ExpressionNode::ReductionTarget::SystemForApproximation);
+    PoincareHelpers::Simplify(&x1, context, ExpressionNode::ReductionTarget::SystemForApproximation);
+    if (x0.type() == ExpressionNode::Type::Unreal) {
+      assert(x1.type() == ExpressionNode::Type::Unreal);
+      m_numberOfSolutions = 0;
+    }
+  }
+
+  Expression factorized;
+
+  if (m_numberOfSolutions == 2) {
+    Expression firstFactor;
+    Expression secondFactor;
+
+    Expression x0Opposite = getOppositeIfExists(x0, &reductionContext);
+    if (x0Opposite.isUninitialized()) {
+      PoincareHelpers::Simplify(&x0, context, ExpressionNode::ReductionTarget::User);
+      if (x0.type() == ExpressionNode::Type::Addition || x0.type() == ExpressionNode::Type::Subtraction) {
+        firstFactor = Subtraction::Builder(Symbol::Builder("x", strlen("x")), Parenthesis::Builder(x0.clone()));
+      } else {
+        firstFactor = Subtraction::Builder(Symbol::Builder("x", strlen("x")), x0.clone());
+      }
+    } else {
+      if (x0Opposite.type() == ExpressionNode::Type::Addition || x0Opposite.type() == ExpressionNode::Type::Subtraction) {
+        x0Opposite = Parenthesis::Builder(x0Opposite.clone());
+      }
+      firstFactor = Addition::Builder(Symbol::Builder("x", strlen("x")), x0Opposite.clone());
+    }
+
+    Expression x1Opposite = getOppositeIfExists(x1, &reductionContext);
+    if (x1Opposite.isUninitialized()) {
+      PoincareHelpers::Simplify(&x1, context, ExpressionNode::ReductionTarget::User);
+      if (x1.type() == ExpressionNode::Type::Addition || x1.type() == ExpressionNode::Type::Subtraction) {
+        secondFactor = Subtraction::Builder(Symbol::Builder("x", strlen("x")), Parenthesis::Builder(x1.clone()));
+      } else {
+        secondFactor = Subtraction::Builder(Symbol::Builder("x", strlen("x")), x1.clone());
+      }
+    } else {
+      PoincareHelpers::Simplify(&x1Opposite, context, ExpressionNode::ReductionTarget::User);
+      if (x1Opposite.type() == ExpressionNode::Type::Addition || x1Opposite.type() == ExpressionNode::Type::Subtraction) {
+        x1Opposite = Parenthesis::Builder(x1Opposite.clone());
+      }
+      secondFactor = Addition::Builder(Symbol::Builder("x", strlen("x")), x1Opposite.clone());
+    }
+
+    Expression solutionProduct = Multiplication::Builder(Parenthesis::Builder(firstFactor), Parenthesis::Builder(secondFactor));
+    switch (multiplicationTypeForA)
+    {
+      case MultiplicationTypeForA::Nothing:
+        factorized = solutionProduct;
+        break;
+      case MultiplicationTypeForA::Minus:
+        factorized = Opposite::Builder(solutionProduct);
+        break;
+      case MultiplicationTypeForA::Parenthesis:
+        factorized = Multiplication::Builder(Parenthesis::Builder(a.clone()), solutionProduct);
+        break;
+      case MultiplicationTypeForA::Normal:
+        factorized = Multiplication::Builder(a.clone(), solutionProduct);
+        break;
+      default:
+        assert(false);
+        break;
+    }
+  } else if (m_numberOfSolutions == 1) {
+    Expression x0Opposite = getOppositeIfExists(x0, &reductionContext);
+    Expression factor;
+
+    if (x0Opposite.isUninitialized()) {
+      PoincareHelpers::Simplify(&x0, context, ExpressionNode::ReductionTarget::User);
+      if (x0.type() == ExpressionNode::Type::Addition || x0.type() == ExpressionNode::Type::Subtraction) {
+        factor = Subtraction::Builder(Symbol::Builder("x", strlen("x")), Parenthesis::Builder(x0.clone()));
+      } else {
+        factor = Subtraction::Builder(Symbol::Builder("x", strlen("x")), x0.clone());
+      }
+    } else {
+      PoincareHelpers::Simplify(&x0Opposite, context, ExpressionNode::ReductionTarget::User);
+      factor = Addition::Builder(Symbol::Builder("x", strlen("x")), x0Opposite.clone());
+    }
+
+    Expression solutionProduct = Power::Builder(Parenthesis::Builder(factor), Rational::Builder(2));
+    switch (multiplicationTypeForA)
+    {
+      case MultiplicationTypeForA::Nothing:
+        factorized = solutionProduct;
+        break;
+      case MultiplicationTypeForA::Minus:
+        factorized = Opposite::Builder(solutionProduct);
+        break;
+      case MultiplicationTypeForA::Parenthesis:
+        factorized = Multiplication::Builder(Parenthesis::Builder(a.clone()), solutionProduct);
+        break;
+      case MultiplicationTypeForA::Normal:
+        factorized = Multiplication::Builder(a.clone(), solutionProduct);
+        break;
+      default:
+        assert(false);
+        break;
+    }
+  }
+
+  PoincareHelpers::Simplify(&delta, context, ExpressionNode::ReductionTarget::User);
+
+  m_layouts[0] = PoincareHelpers::CreateLayout(canonized);
+  if (m_numberOfSolutions > 0) {
+    m_layouts[1] = PoincareHelpers::CreateLayout(factorized);
+    m_layouts[2] = PoincareHelpers::CreateLayout(delta);
+    m_layouts[3] = PoincareHelpers::CreateLayout(x0);
+    if (m_numberOfSolutions > 1) {
+      m_layouts[4] = PoincareHelpers::CreateLayout(x1);
+    }
+  } else {
+    m_layouts[1] = PoincareHelpers::CreateLayout(delta);
+  }
+}
+
+Expression SecondDegreeListController::getOppositeIfExists(Expression e, Poincare::ExpressionNode::ReductionContext * reductionContext) {
+  if (e.isNumber() && e.sign(reductionContext->context()) == ExpressionNode::Sign::Negative) {
+    Number n = static_cast<Number&>(e);
+    return std::move(n.setSign(ExpressionNode::Sign::Positive));
+  } else if(e.type() == ExpressionNode::Type::Opposite) {
+    return std::move(e.childAtIndex(0).clone());
+  } else if (e.type() == ExpressionNode::Type::Multiplication && e.numberOfChildren() > 0 && e.childAtIndex(0).isNumber() && e.childAtIndex(0).sign(reductionContext->context()) == ExpressionNode::Sign::Negative) {
+    Multiplication m = static_cast<Multiplication&>(e);
+    if (m.childAtIndex(0).type() == ExpressionNode::Type::Rational && static_cast<Rational&>(e).isMinusOne()) {
+      // The negative numeral factor is -1, we just remove it
+      m.removeChildAtIndexInPlace(0);
+    } else {
+      Expression firstChild = m.childAtIndex(0);
+      Number n = static_cast<Number&>(firstChild);
+      m.childAtIndex(0).setChildrenInPlace(n.setSign(ExpressionNode::Sign::Positive));
+    }
+    PoincareHelpers::Simplify(&m, reductionContext->context(), ExpressionNode::ReductionTarget::User);
+    return std::move(m);
+  }
+  return Expression();
+}
+
+I18n::Message SecondDegreeListController::messageAtIndex(int index) {
+  if (m_numberOfSolutions > 0) {
+    if (index == 0) {
+      return I18n::Message::CanonicalForm;
+    }
+    if (index == 1) {
+      return I18n::Message::FactorizedForm;
+    }
+    if (index == 2) {
+      return I18n::Message::Discriminant;
+    }
+    if (index == 3) {
+      if (m_numberOfSolutions == 1) {
+        return I18n::Message::OnlyRoot;
+      } else {
+        return I18n::Message::FirstRoot;
+      }
+    }
+    return I18n::Message::SecondRoot;
+  } else {
+    switch (index) {
+      case 0:
+        return I18n::Message::CanonicalForm;
+      default:
+        return I18n::Message::Discriminant;
+    }
+  }
+}
+
+}

apps/calculation/additional_outputs/second_degree_list_controller.h

@@ -0,0 +1,26 @@
+#ifndef CALCULATION_ADDITIONAL_OUTPUTS_SECOND_DEGREE_CONTROLLER_H
+#define CALCULATION_ADDITIONAL_OUTPUTS_SECOND_DEGREE_CONTROLLER_H
+
+#include "expressions_list_controller.h"
+
+namespace Calculation {
+
+class SecondDegreeListController : public ExpressionsListController {
+public:
+  SecondDegreeListController(EditExpressionController * editExpressionController) :
+    ExpressionsListController(editExpressionController),
+    m_numberOfSolutions(0) {}
+
+  void setExpression(Poincare::Expression e) override;
+
+private:
+  Poincare::Expression getOppositeIfExists(Poincare::Expression e, Poincare::ExpressionNode::ReductionContext * reductionContext);
+  I18n::Message messageAtIndex(int index) override;
+  int m_numberOfSolutions;
+};
+
+}
+
+#endif
+
+

apps/calculation/additional_outputs/trigonometry_graph_cell.cpp

@@ -1,4 +1,5 @@
 #include "trigonometry_graph_cell.h"
+#include <escher/palette.h>
 
 using namespace Shared;
 using namespace Poincare;
@@ -7,31 +8,48 @@ namespace Calculation {
 
 TrigonometryGraphView::TrigonometryGraphView(TrigonometryModel * model) :
   CurveView(model),
-  m_model(model)
+  m_model(model),
+  m_shouldDisplayTan(false)
 {
 }
 
 void TrigonometryGraphView::drawRect(KDContext * ctx, KDRect rect) const {
   float s = std::sin(m_model->angle());
   float c = std::cos(m_model->angle());
-  ctx->fillRect(rect, KDColorWhite);
+  ctx->fillRect(rect, Palette::BackgroundApps);
   drawGrid(ctx, rect);
   drawAxes(ctx, rect);
   // Draw the circle
   drawCurve(ctx, rect, 0.0f, 2.0f*M_PI, M_PI/180.0f, [](float t, void * model, void * context) {
       return Poincare::Coordinate2D<float>(std::cos(t), std::sin(t));
-    }, nullptr, nullptr, true, Palette::GreyDark, false);
+    }, nullptr, nullptr, true, Palette::SecondaryText, false);
-  // Draw dashed segment to indicate sine and cosine
+
-  drawHorizontalOrVerticalSegment(ctx, rect, Axis::Vertical, c, 0.0f, s, Palette::Red, 1, 3);
+  if (!m_shouldDisplayTan) {
-  drawHorizontalOrVerticalSegment(ctx, rect, Axis::Horizontal, s, 0.0f, c, Palette::Red, 1, 3);
+    // Draw dashed segment to indicate sine and cosine
+    drawHorizontalOrVerticalSegment(ctx, rect, Axis::Vertical, c, 0.0f, s, Palette::CalculationTrigoAndComplexForeground, 1, 3);
+    drawHorizontalOrVerticalSegment(ctx, rect, Axis::Horizontal, s, 0.0f, c, Palette::CalculationTrigoAndComplexForeground, 1, 3);
+  }
+
+  if (m_shouldDisplayTan) {
+    float t = std::tan(m_model->angle());
+    drawHorizontalOrVerticalSegment(ctx, rect, Axis::Vertical, 1.0f, m_model->yMin(), m_model->yMax(), Palette::SecondaryText, 2);
+    drawSegment(ctx, rect, 0.0f, 0.0f, 1.0f, t, Palette::SecondaryText, false);
+    drawDot(ctx, rect, 1.0f, t, Palette::CalculationTrigoAndComplexForeground, Size::Large);
+    drawLabel(ctx, rect, 0.0f, t, "tan(θ)", Palette::CalculationTrigoAndComplexForeground, CurveView::RelativePosition::Before, CurveView::RelativePosition::None);
+    drawHorizontalOrVerticalSegment(ctx, rect, Axis::Horizontal, t, 0.0f, 1.0f, Palette::CalculationTrigoAndComplexForeground, 1, 3);
+  }
+
   // Draw angle position on the circle
-  drawDot(ctx, rect, c, s, Palette::Red, Size::Large);
+  drawDot(ctx, rect, c, s, m_shouldDisplayTan ? Palette::SecondaryText : Palette::CalculationTrigoAndComplexForeground, m_shouldDisplayTan ? Size::Tiny : Size::Large);
   // Draw graduations
   drawLabelsAndGraduations(ctx, rect, Axis::Vertical, false, true);
   drawLabelsAndGraduations(ctx, rect, Axis::Horizontal, false, true);
-  // Draw labels
+
-  drawLabel(ctx, rect, 0.0f, s, "sin(θ)", Palette::Red, c >= 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After, CurveView::RelativePosition::None);
+  if (!m_shouldDisplayTan) {
-  drawLabel(ctx, rect, c, 0.0f, "cos(θ)", Palette::Red, CurveView::RelativePosition::None, s >= 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After);
+    // Draw labels
+    drawLabel(ctx, rect, 0.0f, s, "sin(θ)", Palette::CalculationTrigoAndComplexForeground, c >= 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After, CurveView::RelativePosition::None);
+    drawLabel(ctx, rect, c, 0.0f, "cos(θ)", Palette::CalculationTrigoAndComplexForeground, CurveView::RelativePosition::None, s >= 0.0f ? CurveView::RelativePosition::Before : CurveView::RelativePosition::After);
+  }
 }
 
 }

apps/calculation/additional_outputs/trigonometry_graph_cell.h

@@ -11,13 +11,16 @@ class TrigonometryGraphView : public Shared::CurveView {
 public:
   TrigonometryGraphView(TrigonometryModel * model);
   void drawRect(KDContext * ctx, KDRect rect) const override;
+  void setShouldDisplayTan(bool shouldDisplayTan) { m_shouldDisplayTan = shouldDisplayTan; };
 private:
   TrigonometryModel * m_model;
+  bool m_shouldDisplayTan;
 };
 
 class TrigonometryGraphCell : public IllustrationCell {
 public:
   TrigonometryGraphCell(TrigonometryModel * model) : m_view(model) {}
+  void setShouldDisplayTan(bool shouldDisplayTan) { m_view.setShouldDisplayTan(shouldDisplayTan); };
 private:
   View * view() override { return &m_view; }
   TrigonometryGraphView m_view;

apps/calculation/additional_outputs/trigonometry_list_controller.cpp

@@ -1,19 +1,70 @@
 #include "trigonometry_list_controller.h"
 #include "../app.h"
+#include <poincare_nodes.h>
+#include "../../shared/poincare_helpers.h"
 
 using namespace Poincare;
 
 namespace Calculation {
 
-void TrigonometryListController::setExpression(Poincare::Expression e) {
+static constexpr int s_fullCircle[] = {
-  assert(e.type() == ExpressionNode::Type::Cosine || e.type() == ExpressionNode::Type::Sine);
+  360,
-  IllustratedListController::setExpression(e.childAtIndex(0));
+  2,
+  400
+};
+
+Poincare::Constant toConstant(Expression e) {
+  return static_cast<Poincare::Constant &>(e);
+}
+
+void TrigonometryListController::setExpression(Expression e) {
+  assert(e.type() == ExpressionNode::Type::Cosine || e.type() == ExpressionNode::Type::Sine || e.type() == ExpressionNode::Type::Tangent);
+  bool shouldDisplayTan = e.type() == ExpressionNode::Type::Tangent;
+  m_graphCell.setShouldDisplayTan(shouldDisplayTan);
+  m_model.setShouldDisplayTan(shouldDisplayTan);
+
+  Poincare::Context * context = App::app()->localContext();
+  Poincare::Preferences * preferences = Poincare::Preferences::sharedPreferences();
+  Preferences::AngleUnit angleUnit = preferences->angleUnit();
+
+  Expression angleExpression = e.childAtIndex(0);
+
+  Shared::PoincareHelpers::Reduce(&angleExpression, context, Poincare::ExpressionNode::ReductionTarget::SystemForAnalysis);
+
+  if ((angleUnit == Preferences::AngleUnit::Radian
+        && angleExpression.type() == ExpressionNode::Type::Multiplication
+        && angleExpression.numberOfChildren() == 2
+        && angleExpression.childAtIndex(1).type() == ExpressionNode::Type::Constant
+        && toConstant(angleExpression.childAtIndex(1)).isPi()
+        && angleExpression.childAtIndex(0).type() == ExpressionNode::Type::Rational)
+      || ((angleUnit == Preferences::AngleUnit::Degree || angleUnit == Preferences::AngleUnit::Gradian)
+        && angleExpression.type() == ExpressionNode::Type::Rational)) {
+
+    Expression extracted = angleUnit == Preferences::AngleUnit::Radian ? angleExpression.childAtIndex(0) : angleExpression;
+    Rational r = static_cast<Rational &>(extracted);
+
+    Integer denominator = Integer::Multiplication(r.integerDenominator(), Integer(s_fullCircle[(int) angleUnit]));
+    IntegerDivision division = Integer::Division(r.signedIntegerNumerator(), denominator);
+
+    Integer remainder = division.remainder;
+
+    Expression newAngle;
+    Integer rDenominator = r.integerDenominator();
+    Rational newCoefficient = Rational::Builder(remainder, rDenominator);
+    if (angleUnit == Preferences::AngleUnit::Radian) {
+      angleExpression = Multiplication::Builder(newCoefficient, angleExpression.childAtIndex(1));
+    } else {
+      angleExpression = newCoefficient;
+    }
+  }
+
+  IllustratedListController::setExpression(angleExpression);
 
   // Fill calculation store
-  Poincare::Context * context = App::app()->localContext();
+  m_calculationStore.push("tan(θ)", context, CalculationHeight);
-  m_calculationStore.push("sin(θ)", context);
+  m_calculationStore.push("sin(θ)", context, CalculationHeight);
-  m_calculationStore.push("cos(θ)", context);
+  m_calculationStore.push("cos(θ)", context, CalculationHeight);
-  m_calculationStore.push("θ", context);
+  m_calculationStore.push("θ", context, CalculationHeight);
 
   // Set trigonometry illustration
   float angle = Shared::PoincareHelpers::ApproximateToScalar<float>(m_calculationStore.calculationAtIndex(0)->approximateOutput(context, Calculation::NumberOfSignificantDigits::Maximal), context);

apps/calculation/additional_outputs/trigonometry_list_controller.h

@@ -10,7 +10,7 @@ namespace Calculation {
 class TrigonometryListController : public IllustratedListController {
 public:
   TrigonometryListController(EditExpressionController * editExpressionController) :
-    IllustratedListController(nullptr, editExpressionController),
+    IllustratedListController(editExpressionController),
     m_graphCell(&m_model) {}
   void setExpression(Poincare::Expression e) override;
 private:

apps/calculation/additional_outputs/trigonometry_model.cpp

@@ -8,4 +8,22 @@ TrigonometryModel::TrigonometryModel() :
 {
 }
 
+float TrigonometryModel::yMin() const {
+  if (m_shouldDisplayTan) {
+    return -1.1f;
+  }
+  return yCenter() - yHalfRange();
+}
+
+float TrigonometryModel::yMax() const {
+  if (m_shouldDisplayTan) {
+    float t = std::tan(angle());
+    if (t <= 1.2f) {
+      return 1.2f;
+    }
+    return 1.2f * std::tan(angle());
+  }
+  return yCenter() + yHalfRange();
+}
+
 }

apps/calculation/additional_outputs/trigonometry_model.h

@@ -14,11 +14,12 @@ public:
   // CurveViewRange
   float xMin() const override { return -k_xHalfRange; }
   float xMax() const override { return k_xHalfRange; }
-  float yMin() const override { return yCenter() - yHalfRange(); }
+  float yMin() const override;
-  float yMax() const override { return yCenter() + yHalfRange(); }
+  float yMax() const override;
 
   void setAngle(float f) { m_angle = f; }
-  float angle() const { return m_angle*M_PI/Poincare::Trigonometry::PiInAngleUnit(Poincare::Preferences::sharedPreferences()->angleUnit()); }
+  float angle() const { return m_angle*(float)M_PI/(float)Poincare::Trigonometry::PiInAngleUnit(Poincare::Preferences::sharedPreferences()->angleUnit()); }
+  void setShouldDisplayTan(bool shouldDisplayTan) { m_shouldDisplayTan = shouldDisplayTan; }
 private:
   constexpr static float k_xHalfRange = 2.1f;
   // We center the yRange around the semi-circle where the angle is
@@ -33,6 +34,7 @@ private:
   float yHalfRange() const { return IllustratedListController::k_illustrationHeight*k_xHalfRange/(Ion::Display::Width - Metric::PopUpRightMargin - Metric::PopUpLeftMargin); }
 
   float m_angle;
+  bool m_shouldDisplayTan;
 };
 
 }

apps/calculation/additional_outputs/unit_list_controller.cpp

@@ -0,0 +1,155 @@
+#include "unit_list_controller.h"
+#include "../app.h"
+#include "../../shared/poincare_helpers.h"
+#include <poincare/unit_convert.h>
+#include <poincare/multiplication.h>
+#include <poincare/power.h>
+#include <poincare/undefined.h>
+#include <poincare/unit.h>
+
+using namespace Poincare;
+using namespace Shared;
+
+namespace Calculation {
+
+
+UnitListController::UnitListController(EditExpressionController * editExpressionController) :
+  ExpressionsListController(editExpressionController),
+  m_dimensionMessage(I18n::Message::Default)
+{
+  m_dimensionCell.setMessageFont(KDFont::LargeFont);
+}
+
+bool UnitListController::handleEvent(Ion::Events::Event event) {
+  if (selectedRow() == 0 && (event == Ion::Events::OK || event == Ion::Events::EXE)) {
+    return true;
+  }
+
+  // HACK: Change the selected row (prevent some bugs when OK is pressed)
+  selectRow(selectedRow() - 1);
+  bool value = ListController::handleEvent(event);
+  selectRow(selectedRow() + 1);
+  return value;
+}
+
+void UnitListController::setExpression(Poincare::Expression e) {
+  ExpressionsListController::setExpression(e);
+  assert(!m_expression.isUninitialized());
+  static_assert(k_maxNumberOfRows >= 3, "k_maxNumberOfRows must be greater than 3");
+
+  Poincare::Expression expressions[k_maxNumberOfRows];
+  // Initialize expressions
+  for (size_t i = 0; i < k_maxNumberOfRows; i++) {
+    expressions[i] = Expression();
+  }
+  m_dimensionMessage = I18n::Message::Default;
+
+  /* 1. First rows: miscellaneous classic units for some dimensions, in both
+   * metric and imperial units. */
+  Expression copy = m_expression.clone();
+  Expression units;
+  // Reduce to be able to recognize units
+  PoincareHelpers::ReduceAndRemoveUnit(&copy, App::app()->localContext(), ExpressionNode::ReductionTarget::User, &units);
+  double value = Shared::PoincareHelpers::ApproximateToScalar<double>(copy, App::app()->localContext());
+  ExpressionNode::ReductionContext reductionContext(
+      App::app()->localContext(),
+      Preferences::sharedPreferences()->complexFormat(),
+      Preferences::sharedPreferences()->angleUnit(),
+      GlobalPreferences::sharedGlobalPreferences()->unitFormat(),
+      ExpressionNode::ReductionTarget::User,
+      ExpressionNode::SymbolicComputation::ReplaceAllSymbolsWithDefinitionsOrUndefined);
+  int numberOfExpressions = Unit::SetAdditionalExpressionsAndMessage(units, value, expressions, k_maxNumberOfRows, reductionContext, &m_dimensionMessage);
+
+  // 2. SI units only
+  assert(numberOfExpressions < k_maxNumberOfRows - 1);
+  expressions[numberOfExpressions] = m_expression.clone();
+  Shared::PoincareHelpers::Simplify(&expressions[numberOfExpressions], App::app()->localContext(), ExpressionNode::ReductionTarget::User, Poincare::ExpressionNode::SymbolicComputation::ReplaceAllDefinedSymbolsWithDefinition, Poincare::ExpressionNode::UnitConversion::InternationalSystem);
+  numberOfExpressions++;
+
+  /* 3. Get rid of duplicates
+   * We find duplicates by comparing the serializations, to eliminate
+   * expressions that only differ by the types of their number nodes. */
+  Expression reduceExpression = m_expression.clone();
+  // Make m_expression comparable to expressions (turn BasedInteger into Rational for instance)
+  Shared::PoincareHelpers::Simplify(&reduceExpression, App::app()->localContext(), ExpressionNode::ReductionTarget::User, Poincare::ExpressionNode::SymbolicComputation::ReplaceAllDefinedSymbolsWithDefinition, Poincare::ExpressionNode::UnitConversion::None);
+  int currentExpressionIndex = 0;
+  while (currentExpressionIndex < numberOfExpressions) {
+    bool duplicateFound = false;
+    constexpr int buffersSize = Constant::MaxSerializedExpressionSize;
+    char buffer1[buffersSize];
+    int size1 = PoincareHelpers::Serialize(expressions[currentExpressionIndex], buffer1, buffersSize);
+    for (int i = 0; i < currentExpressionIndex + 1; i++) {
+      // Compare the currentExpression to all previous expressions and to m_expression
+      Expression comparedExpression = i == currentExpressionIndex ? reduceExpression : expressions[i];
+      assert(!comparedExpression.isUninitialized());
+      char buffer2[buffersSize];
+      int size2 = PoincareHelpers::Serialize(comparedExpression, buffer2, buffersSize);
+      if (size1 == size2 && strcmp(buffer1, buffer2) == 0) {
+        numberOfExpressions--;
+        // Shift next expressions
+        for (int j = currentExpressionIndex; j < numberOfExpressions; j++) {
+          expressions[j] = expressions[j+1];
+        }
+        // Remove last expression
+        expressions[numberOfExpressions] = Expression();
+        // The current expression has been discarded, no need to increment the current index
+        duplicateFound = true;
+        break;
+      }
+    }
+    if (!duplicateFound) {
+      // The current expression is not a duplicate, check next expression
+      currentExpressionIndex++;
+    }
+  }
+  // Memoize layouts
+  for (size_t i = 0; i < k_maxNumberOfRows; i++) {
+    if (!expressions[i].isUninitialized()) {
+      m_layouts[i] = Shared::PoincareHelpers::CreateLayout(expressions[i]);
+    }
+  }
+}
+
+int UnitListController::numberOfRows() const {
+  int messageRow = m_dimensionMessage != I18n::Message::Default ? 1 : 0;
+  return ExpressionsListController::numberOfRows() + messageRow;
+}
+
+void UnitListController::willDisplayCellForIndex(HighlightCell * cell, int index) {
+  if (index == 0) {
+    MessageTableCell<> * messageTableCell = (MessageTableCell<> *)cell;
+    messageTableCell->setMessage(m_dimensionMessage);
+  } else {
+    ExpressionsListController::willDisplayCellForIndex(cell, index - 1);
+  }
+}
+
+KDCoordinate UnitListController::rowHeight(int index) {
+  if (index == 0) {
+    return 35;
+  } else {
+    return ExpressionsListController::rowHeight(index - 1);
+  }
+}
+
+HighlightCell * UnitListController::reusableCell(int index, int type) {
+  if (type == 0) {
+    return ExpressionsListController::reusableCell(index, type);
+  } else {
+    return &m_dimensionCell;
+  }
+}
+
+int UnitListController::typeAtLocation(int i, int j) {
+  if (j == 0) {
+    return 1;
+  } else {
+    return ExpressionsListController::typeAtLocation(i, j - 1);
+  }
+}
+
+I18n::Message UnitListController::messageAtIndex(int index) {
+  return (I18n::Message)0;
+}
+
+}

apps/calculation/additional_outputs/unit_list_controller.h

@@ -0,0 +1,31 @@
+#ifndef CALCULATION_ADDITIONAL_OUTPUTS_UNIT_LIST_CONTROLLER_H
+#define CALCULATION_ADDITIONAL_OUTPUTS_UNIT_LIST_CONTROLLER_H
+
+#include "expressions_list_controller.h"
+
+namespace Calculation {
+
+class UnitListController : public ExpressionsListController {
+public:
+  UnitListController(EditExpressionController * editExpressionController);
+
+  /* Responder */
+  bool handleEvent(Ion::Events::Event event) override;
+
+  void setExpression(Poincare::Expression e) override;
+  int reusableCellCount(int type) override { return type == 0 ? ExpressionsListController::reusableCellCount(type) : 1; }
+  HighlightCell * reusableCell(int index, int type) override;
+  KDCoordinate rowHeight(int j) override;
+  int typeAtLocation(int i, int j) override;
+  void willDisplayCellForIndex(HighlightCell * cell, int index) override;
+  int numberOfRows() const override;
+
+private:
+  I18n::Message messageAtIndex(int index) override;
+  I18n::Message m_dimensionMessage;
+  MessageTableCell<> m_dimensionCell;
+};
+
+}
+
+#endif

apps/calculation/app.cpp

@@ -17,8 +17,8 @@ I18n::Message App::Descriptor::upperName() {
   return I18n::Message::CalculAppCapital;
 }
 
-int App::Descriptor::examinationLevel() {
+App::Descriptor::ExaminationLevel App::Descriptor::examinationLevel() {
-  return App::Descriptor::StrictExaminationLevel;
+  return App::Descriptor::ExaminationLevel::Strict;
 }
 
 const Image * App::Descriptor::icon() {
@@ -31,6 +31,8 @@ App * App::Snapshot::unpack(Container * container) {
 
 void App::Snapshot::reset() {
   m_calculationStore.deleteAll();
+  m_cacheBuffer[0] = 0;
+  m_cacheBufferInformation = 0;
 }
 
 App::Descriptor * App::Snapshot::descriptor() {
@@ -38,14 +40,14 @@ App::Descriptor * App::Snapshot::descriptor() {
   return &descriptor;
 }
 
-void App::Snapshot::tidy() {
+App::Snapshot::Snapshot() : m_calculationStore(m_calculationBuffer, k_calculationBufferSize)
-  m_calculationStore.tidy();
+{
 }
 
 App::App(Snapshot * snapshot) :
   ExpressionFieldDelegateApp(snapshot, &m_editExpressionController),
   m_historyController(&m_editExpressionController, snapshot->calculationStore()),
-  m_editExpressionController(&m_modalViewController, this, &m_historyController, snapshot->calculationStore())
+  m_editExpressionController(&m_modalViewController, this, snapshot->cacheBuffer(), snapshot->cacheBufferInformationAddress(), &m_historyController, snapshot->calculationStore())
 {
 }
 
@@ -73,4 +75,14 @@ bool App::isAcceptableExpression(const Poincare::Expression expression) {
   return !expression.isUninitialized();
 }
 
+void App::didBecomeActive(Window * window) {
+  m_editExpressionController.restoreInput();
+  Shared::ExpressionFieldDelegateApp::didBecomeActive(window);
+}
+
+void App::willBecomeInactive() {
+  m_editExpressionController.memoizeInput();
+  Shared::ExpressionFieldDelegateApp::willBecomeInactive();
+}
+
 }

apps/calculation/app.h

@@ -6,6 +6,7 @@
 #include "history_controller.h"
 #include "../shared/text_field_delegate_app.h"
 #include <escher.h>
+#include "../shared/shared_app.h"
 
 namespace Calculation {
 
@@ -15,18 +16,25 @@ public:
   public:
     I18n::Message name() override;
     I18n::Message upperName() override;
-    int examinationLevel() override;
+    App::Descriptor::ExaminationLevel examinationLevel() override;
     const Image * icon() override;
   };
-  class Snapshot : public ::App::Snapshot {
+  class Snapshot : public ::SharedApp::Snapshot {
   public:
+    Snapshot();
     App * unpack(Container * container) override;
     void reset() override;
     Descriptor * descriptor() override;
     CalculationStore * calculationStore() { return &m_calculationStore; }
+    char * cacheBuffer() { return m_cacheBuffer; }
+    size_t * cacheBufferInformationAddress() { return &m_cacheBufferInformation; }
   private:
-    void tidy() override;
     CalculationStore m_calculationStore;
+    // Set the size of the buffer needed to store the calculations
+    static constexpr int k_calculationBufferSize = 10 * (sizeof(Calculation) + Calculation::k_numberOfExpressions * Constant::MaxSerializedExpressionSize + sizeof(Calculation *));
+    char m_calculationBuffer[k_calculationBufferSize];
+    char m_cacheBuffer[EditExpressionController::k_cacheBufferSize];
+    size_t m_cacheBufferInformation;
   };
   static App * app() {
     return static_cast<App *>(Container::activeApp());
@@ -36,9 +44,12 @@ public:
   bool layoutFieldDidReceiveEvent(::LayoutField * layoutField, Ion::Events::Event event) override;
   // TextFieldDelegateApp
   bool isAcceptableExpression(const Poincare::Expression expression) override;
+
 private:
   App(Snapshot * snapshot);
   HistoryController m_historyController;
+  void didBecomeActive(Window * window) override;
+  void willBecomeInactive() override;
   EditExpressionController m_editExpressionController;
 };
 

apps/calculation/base.de.i18n

@@ -4,6 +4,17 @@ AdditionalResults = "Weitere Ergebnisse"
 DecimalBase = "Dezimal"
 HexadecimalBase = "Hexadezimal"
 BinaryBase = "Binär"
-PrimeFactors = "Primfaktor"
+PrimeFactors = "Primfaktoren"
-MixedFraction = "Gemischte Fraktion"
+MixedFraction = "Gemischte Zahl"
-EuclideanDivision = "Euklidische Division"
+EuclideanDivision = "Division mit Rest"
+AdditionalDeterminant = "Determinante"
+AdditionalInverse = "Inverse"
+AdditionalRowEchelonForm = "Stufenform"
+AdditionalReducedRowEchelonForm = "Reduzierte Stufenform"
+AdditionalTrace = "Spur"
+CanonicalForm = "Kanonische Form"
+FactorizedForm = "Factorisierte Form"
+Discriminant = "Diskriminante"
+OnlyRoot = "Wurzel"
+FirstRoot = "Erste Wurzel"
+SecondRoot = "Zweite Wurzel"

apps/calculation/base.en.i18n

@@ -7,3 +7,14 @@ BinaryBase = "Binary"
 PrimeFactors = "Prime factors"
 MixedFraction = "Mixed fraction"
 EuclideanDivision = "Euclidean division"
+AdditionalDeterminant = "Determinant"
+AdditionalInverse = "Inverse"
+AdditionalRowEchelonForm = "Row echelon form"
+AdditionalReducedRowEchelonForm = "Reduced row echelon form"
+AdditionalTrace = "Trace"
+CanonicalForm = "Canonical form"
+FactorizedForm = "Factorized form"
+Discriminant = "Discriminant"
+OnlyRoot = "Root"
+FirstRoot = "First root"
+SecondRoot = "Second root"

apps/calculation/base.es.i18n

@@ -1,9 +1,20 @@
 CalculApp = "Cálculo"
 CalculAppCapital = "CÁLCULO"
-AdditionalResults = "????"
+AdditionalResults = "Resultados adicionales"
-DecimalBase = "????"
+DecimalBase = "Decimal"
-HexadecimalBase = "????"
+HexadecimalBase = "Hexadecimal"
-BinaryBase = "????"
+BinaryBase = "Binario"
-PrimeFactors = "????"
+PrimeFactors = "Factores primos"
-MixedFraction = "????"
+MixedFraction = "Fracción mixta"
-EuclideanDivision = "????"
+EuclideanDivision = "División euclidiana"
+AdditionalDeterminant = "Determinante"
+AdditionalInverse = "Inversa"
+AdditionalRowEchelonForm = "Matriz escalonada"
+AdditionalReducedRowEchelonForm = "Matriz escalonada reducida"
+AdditionalTrace = "Traza"
+CanonicalForm = "Forma canónica"
+FactorizedForm = "Forma factorizada"
+Discriminant = "Discriminante"
+OnlyRoot = "Raíz"
+FirstRoot = "Primera raíz"
+SecondRoot = "Segunda raíz"

apps/calculation/base.fr.i18n

@@ -7,3 +7,14 @@ BinaryBase = "Binaire"
 PrimeFactors = "Facteurs premiers"
 MixedFraction = "Fraction mixte"
 EuclideanDivision = "Division euclidienne"
+AdditionalDeterminant = "Déterminant"
+AdditionalInverse = "Inverse"
+AdditionalRowEchelonForm = "Forme échelonnée"
+AdditionalReducedRowEchelonForm = "Forme échelonnée réduite"
+AdditionalTrace = "Trace"
+CanonicalForm = "Forme canonique"
+FactorizedForm = "Forme factorisée"
+Discriminant = "Discriminant"
+OnlyRoot = "Racine"
+FirstRoot = "Première racine"
+SecondRoot = "Seconde racine"

apps/calculation/base.hu.i18n

@@ -1,9 +1,20 @@
-CalculApp = "Számolás"
+CalculApp = "Számolás"
-CalculAppCapital = "SZÁMOLÁS"
+CalculAppCapital = "SZÁMOLÁS"
-AdditionalResults = "További eredmények"
+AdditionalResults = "További eredmények"
-DecimalBase = "Decimális"
+DecimalBase = "Decimális"
-HexadecimalBase = "Hexadecimális"
+HexadecimalBase = "Hexadecimális"
-BinaryBase = "Kétkomponensü"
+BinaryBase = "Bináris"
-PrimeFactors = "Alapvetö tényezök"
+PrimeFactors = "Alapvetö tényezök"
-MixedFraction = "Vegyes frakció"
+MixedFraction = "Vegyes frakció"
-EuclideanDivision = "Euklideszi osztás"
+EuclideanDivision = "Euklideszi osztás"
+AdditionalDeterminant = "Meghatározó"
+AdditionalInverse = "inverz"
+AdditionalRowEchelonForm = "Sor echelon forma"
+AdditionalReducedRowEchelonForm = "Csökkentett sorú Echelon forma"
+AdditionalTrace = "Nyomkövetés"
+CanonicalForm = "Kanonikus forma"
+FactorizedForm = "Factorizált forma"
+Discriminant = "Discriminant"
+OnlyRoot = "Gyökér"
+FirstRoot = "Első gyökér"
+SecondRoot = "Második gyökér"

apps/calculation/base.it.i18n

@@ -0,0 +1,20 @@
+CalculApp = "Calcolo"
+CalculAppCapital = "CALCOLO"
+AdditionalResults = "Risultati complementari"
+DecimalBase = "Decimale"
+HexadecimalBase = "Esadecimale"
+BinaryBase = "Binario"
+PrimeFactors = "Fattorizzazione"
+MixedFraction = "Frazione mista"
+EuclideanDivision = "Divisione euclidea"
+AdditionalDeterminant = "Determinante"
+AdditionalInverse = "Inversa"
+AdditionalRowEchelonForm = "Matrice a scalini"
+AdditionalReducedRowEchelonForm = "Matrice ridotta a scalini"
+AdditionalTrace = "Traccia"
+CanonicalForm = "Forma canonica"
+FactorizedForm = "Forma fattorizzata"
+Discriminant = "Discriminante"
+OnlyRoot = "Radice"
+FirstRoot = "Prima radice"
+SecondRoot = "Seconda radice"

apps/calculation/base.nl.i18n

@@ -0,0 +1,20 @@
+CalculApp = "Rekenen"
+CalculAppCapital = "REKENEN"
+AdditionalResults = "Aanvullende resultaten"
+DecimalBase = "Decimaal"
+HexadecimalBase = "Hexadecimaal"
+BinaryBase = "Binair"
+PrimeFactors = "Ontbinding"
+MixedFraction = "Gemengde breuk"
+EuclideanDivision = "Geheeltallige deling"
+AdditionalDeterminant = "Determinant"
+AdditionalInverse = "Inverse"
+AdditionalRowEchelonForm = "Echelonvorm"
+AdditionalReducedRowEchelonForm = "Gereduceerde echelonvorm"
+AdditionalTrace = "Spoor"
+CanonicalForm = "Canonische vorm"
+FactorizedForm = "Factorized vorm"
+Discriminant = "Discriminant"
+OnlyRoot = "Wortel"
+FirstRoot = "Eerste wortel"
+SecondRoot = "Tweede wortel"

apps/calculation/base.pt.i18n

@@ -1,9 +1,20 @@
 CalculApp = "Cálculo"
 CalculAppCapital = "CÁLCULO"
-AdditionalResults = "????"
+AdditionalResults = "Resultados adicionais"
-DecimalBase = "????"
+DecimalBase = "Decimal"
-HexadecimalBase = "????"
+HexadecimalBase = "Hexadecimal"
-BinaryBase = "????"
+BinaryBase = "Binário"
-PrimeFactors = "????"
+PrimeFactors = "Fatorização"
-MixedFraction = "????"
+MixedFraction = "Fração mista"
-EuclideanDivision = "????"
+EuclideanDivision = "Divisão euclidiana"
+AdditionalDeterminant = "Determinante"
+AdditionalInverse = "Matriz inversa"
+AdditionalRowEchelonForm = "Matriz escalonada"
+AdditionalReducedRowEchelonForm = "Matriz escalonada reduzida"
+AdditionalTrace = "Traço"
+CanonicalForm = "Forma canónica"
+FactorizedForm = "Factorized form"
+Discriminant = "Discriminante"
+OnlyRoot = "Raiz"
+FirstRoot = "Primeira raiz"
+SecondRoot = "Segunda raiz"

apps/calculation/calculation.cpp

@@ -1,20 +1,23 @@
 #include "calculation.h"
 #include "../shared/poincare_helpers.h"
+#include "../shared/scrollable_multiple_expressions_view.h"
 #include "../global_preferences.h"
 #include "../exam_mode_configuration.h"
+#include "app.h"
 #include <poincare/exception_checkpoint.h>
 #include <poincare/undefined.h>
+#include <poincare/unit.h>
 #include <poincare/unreal.h>
+#include <poincare/symbol_abstract.h>
 #include <string.h>
 #include <cmath>
+#include <algorithm>
 
 using namespace Poincare;
 using namespace Shared;
 
 namespace Calculation {
 
-static inline KDCoordinate maxCoordinate(KDCoordinate x, KDCoordinate y) { return x > y ? x : y; }
-
 bool Calculation::operator==(const Calculation& c) {
   return strcmp(inputText(), c.inputText()) == 0
       && strcmp(approximateOutputText(NumberOfSignificantDigits::Maximal), c.approximateOutputText(NumberOfSignificantDigits::Maximal)) == 0
@@ -36,13 +39,6 @@ Calculation * Calculation::next() const {
   return reinterpret_cast<Calculation *>(const_cast<char *>(result));
 }
 
-void Calculation::tidy() {
-  /* Reset height memoization (the complex format could have changed when
-   * re-entering Calculation app which would impact the heights). */
-  m_height = -1;
-  m_expandedHeight = -1;
-}
-
 const char * Calculation::approximateOutputText(NumberOfSignificantDigits numberOfSignificantDigits) const {
   const char * exactOutput = exactOutputText();
   const char * approximateOutputTextWithMaxNumberOfDigits = exactOutput + strlen(exactOutput) + 1;
@@ -125,123 +121,15 @@ Layout Calculation::createApproximateOutputLayout(Context * context, bool * coul
   }
 }
 
-KDCoordinate Calculation::height(Context * context, bool expanded, bool allExpressionsInline) {
+KDCoordinate Calculation::height(bool expanded) {
-  KDCoordinate result = expanded ? m_expandedHeight : m_height;
+  KDCoordinate h = expanded ? m_expandedHeight : m_height;
-  if (result >= 0) {
+  assert(h >= 0);
-    // Height already computed
+  return h;
-    return result;
+}
-  }
 
-  // Get input height
+void Calculation::setHeights(KDCoordinate height, KDCoordinate expandedHeight) {
-  Layout inputLayout = createInputLayout();
+  m_height = height;
-  KDCoordinate inputHeight = inputLayout.layoutSize().height();
+  m_expandedHeight = expandedHeight;
-  KDCoordinate inputWidth = inputLayout.layoutSize().width();
-  float singleMargin = 2 * Metric::CommonSmallMargin;
-  float doubleMargin = 4 * Metric::CommonSmallMargin;
-  bool singleLine = false;
-  KDCoordinate inputBaseline = inputLayout.baseline();
-
-  // Get exact output height if needed
-  Poincare::Layout exactLayout;
-  bool couldNotCreateExactLayout = false;
-  if (DisplaysExact(displayOutput(context))) {
-    // Create the exact output layout
-    exactLayout = createExactOutputLayout(&couldNotCreateExactLayout);
-    if (couldNotCreateExactLayout) {
-      if (displayOutput(context) != DisplayOutput::ExactOnly) {
-        forceDisplayOutput(DisplayOutput::ApproximateOnly);
-      } else {
-        /* We should only display the exact result, but we cannot create it
-         * -> raise an exception. */
-        ExceptionCheckpoint::Raise();
-      }
-    }
-  }
-
-  if (displayOutput(context) == DisplayOutput::ExactOnly) {
-    KDCoordinate exactOutputHeight = exactLayout.layoutSize().height();
-    KDCoordinate exactOutputWidth = exactLayout.layoutSize().width();
-    singleLine = exactOutputWidth + inputWidth < maxWidth - 40;
-    if (singleLine && Poincare::Preferences::sharedPreferences()->resultDisplay() == Poincare::Preferences::ResultDisplay::Compact && !allExpressionsInline) {
-      KDCoordinate exactOutputBaseline = exactLayout.baseline();
-      result = maxCoordinate(inputBaseline, exactOutputBaseline) + maxCoordinate(inputHeight - inputBaseline, exactOutputHeight-exactOutputBaseline) + singleMargin;
-    } else {
-      if (allExpressionsInline) {
-        KDCoordinate exactOutputBaseline = exactLayout.baseline();
-        result = maxCoordinate(inputBaseline, exactOutputBaseline) + maxCoordinate(inputHeight - inputBaseline, exactOutputHeight-exactOutputBaseline);
-      } else {
-        result = inputHeight + exactOutputHeight + doubleMargin;
-      }
-    }
-  } else {
-    bool couldNotCreateApproximateLayout = false;
-    Layout approximateLayout = createApproximateOutputLayout(context, &couldNotCreateApproximateLayout);
-    if (couldNotCreateApproximateLayout) {
-      if (displayOutput(context) == DisplayOutput::ApproximateOnly) {
-        Poincare::ExceptionCheckpoint::Raise();
-      } else {
-        /* Set the display output to ApproximateOnly, make room in the pool by
-         * erasing the exact layout, and retry to create the approximate layout */
-        forceDisplayOutput(DisplayOutput::ApproximateOnly);
-        exactLayout = Poincare::Layout();
-        couldNotCreateApproximateLayout = false;
-        approximateLayout = createApproximateOutputLayout(context, &couldNotCreateApproximateLayout);
-        if (couldNotCreateApproximateLayout) {
-          Poincare::ExceptionCheckpoint::Raise();
-        }
-      }
-    }
-
-    KDCoordinate approximateOutputHeight = approximateLayout.layoutSize().height();
-    KDCoordinate approximateOutputWidth = approximateLayout.layoutSize().width();
-    singleLine = approximateOutputWidth + inputWidth < maxWidth - 40;
-    if (displayOutput(context) == DisplayOutput::ApproximateOnly || (!expanded && displayOutput(context) == DisplayOutput::ExactAndApproximateToggle)) {
-      if (singleLine && Poincare::Preferences::sharedPreferences()->resultDisplay() == Poincare::Preferences::ResultDisplay::Compact && !allExpressionsInline) {
-        KDCoordinate approximateOutputBaseline = approximateLayout.baseline();
-        result = maxCoordinate(inputBaseline, approximateOutputBaseline) + maxCoordinate(inputHeight - inputBaseline, approximateOutputHeight-approximateOutputBaseline) + singleMargin;
-      } else {
-        if (allExpressionsInline) {
-          KDCoordinate approximateOutputBaseline = approximateLayout.baseline();
-          result = maxCoordinate(inputBaseline, approximateOutputBaseline) + maxCoordinate(inputHeight - inputBaseline, approximateOutputHeight-approximateOutputBaseline);
-        } else {
-          result = inputHeight + approximateOutputHeight + doubleMargin;
-        }
-      }
-    } else {
-      assert(displayOutput(context) == DisplayOutput::ExactAndApproximate || (displayOutput(context) == DisplayOutput::ExactAndApproximateToggle && expanded));
-      KDCoordinate exactOutputHeight = exactLayout.layoutSize().height();
-      KDCoordinate exactOutputBaseline = exactLayout.baseline();
-      KDCoordinate exactOutputWidth = exactLayout.layoutSize().width();
-      KDCoordinate approximateOutputWidth = approximateLayout.layoutSize().width();
-      singleLine = exactOutputWidth + approximateOutputWidth + inputWidth < maxWidth - 70;
-      KDCoordinate approximateOutputBaseline = approximateLayout.baseline();
-      if (singleLine && Poincare::Preferences::sharedPreferences()->resultDisplay() == Poincare::Preferences::ResultDisplay::Compact) {
-        result = maxCoordinate(inputBaseline, maxCoordinate(exactOutputBaseline, approximateOutputBaseline)) + maxCoordinate(inputHeight - inputBaseline, maxCoordinate(exactOutputHeight - exactOutputBaseline, approximateOutputHeight-approximateOutputBaseline)) + singleMargin;
-      } else {
-        if (allExpressionsInline) {
-          result = maxCoordinate(inputBaseline, maxCoordinate(exactOutputBaseline, approximateOutputBaseline)) + maxCoordinate(inputHeight - inputBaseline, maxCoordinate(exactOutputHeight - exactOutputBaseline, approximateOutputHeight-approximateOutputBaseline));
-        } else {
-          KDCoordinate outputHeight = maxCoordinate(exactOutputBaseline, approximateOutputBaseline) + maxCoordinate(exactOutputHeight-exactOutputBaseline, approximateOutputHeight-approximateOutputBaseline);
-          result = inputHeight + outputHeight + doubleMargin;
-        }
-      }
-    }
-  }
-
-  /* For all display outputs except ExactAndApproximateToggle, the selected
-   * height and the usual height are identical. We update both heights in
-   * theses cases. */
-  if (displayOutput(context) != DisplayOutput::ExactAndApproximateToggle) {
-    m_height = result;
-    m_expandedHeight = result;
-  } else {
-    if (expanded) {
-      m_expandedHeight = result;
-    } else {
-      m_height = result;
-    }
-  }
-  return result;
 }
 
 Calculation::DisplayOutput Calculation::displayOutput(Context * context) {
@@ -282,10 +170,11 @@ Calculation::DisplayOutput Calculation::displayOutput(Context * context) {
             ExpressionNode::Type::Sum,
             ExpressionNode::Type::Derivative,
             ExpressionNode::Type::ConfidenceInterval,
-            ExpressionNode::Type::PredictionInterval
+            ExpressionNode::Type::PredictionInterval,
+            ExpressionNode::Type::Sequence
           };
           return e.isOfType(approximateOnlyTypes, sizeof(approximateOnlyTypes)/sizeof(ExpressionNode::Type));
-        }, context, true)
+        }, context)
   )
   {
     m_displayOutput = DisplayOutput::ApproximateOnly;
@@ -300,17 +189,17 @@ Calculation::DisplayOutput Calculation::displayOutput(Context * context) {
 }
 
 void Calculation::forceDisplayOutput(DisplayOutput d) {
+  // Heights haven't been computed yet
+  assert(m_height == -1 && m_expandedHeight == -1);
   m_displayOutput = d;
-  // Reset heights memoization as it might have changed when we modify the display output
-  m_height = -1;
-  m_expandedHeight = -1;
 }
+
 bool Calculation::shouldOnlyDisplayExactOutput() {
   /* If the input is a "store in a function", do not display the approximate
    * result. This prevents x->f(x) from displaying x = undef. */
   Expression i = input();
-  return i.type() == ExpressionNode::Type::Store
+  return (i.type() == ExpressionNode::Type::Store && i.childAtIndex(1).type() == ExpressionNode::Type::Function)
-    && i.childAtIndex(1).type() == ExpressionNode::Type::Function;
+    || strcmp(approximateOutputText(NumberOfSignificantDigits::Maximal), Undefined::Name()) == 0;
 }
 
 Calculation::EqualSign Calculation::exactAndApproximateDisplayedOutputsAreEqual(Poincare::Context * context) {
@@ -329,8 +218,9 @@ Calculation::EqualSign Calculation::exactAndApproximateDisplayedOutputsAreEqual(
   Poincare::ExceptionCheckpoint ecp;
   if (ExceptionRun(ecp)) {
     Preferences * preferences = Preferences::sharedPreferences();
+    // TODO: complex format should not be needed here (as it is not used to create layouts)
     Preferences::ComplexFormat complexFormat = Expression::UpdatedComplexFormatWithTextInput(preferences->complexFormat(), m_inputText);
-    m_equalSign = Expression::ParsedExpressionsAreEqual(exactOutputText(), approximateOutputText(NumberOfSignificantDigits::UserDefined), context, complexFormat, preferences->angleUnit()) ? EqualSign::Equal : EqualSign::Approximation;
+    m_equalSign = Expression::ParsedExpressionsAreEqual(exactOutputText(), approximateOutputText(NumberOfSignificantDigits::UserDefined), context, complexFormat, preferences->angleUnit(), GlobalPreferences::sharedGlobalPreferences()->unitFormat()) ? EqualSign::Equal : EqualSign::Approximation;
     return m_equalSign;
   } else {
     /* Do not override m_equalSign in case there is enough room in the pool
@@ -340,6 +230,9 @@ Calculation::EqualSign Calculation::exactAndApproximateDisplayedOutputsAreEqual(
 }
 
 Calculation::AdditionalInformationType Calculation::additionalInformationType(Context * context) {
+  if (ExamModeConfiguration::exactExpressionsAreForbidden(GlobalPreferences::sharedGlobalPreferences()->examMode())) {
+    return AdditionalInformationType::None;
+  }
   Preferences * preferences = Preferences::sharedPreferences();
   Preferences::ComplexFormat complexFormat = Expression::UpdatedComplexFormatWithTextInput(preferences->complexFormat(), m_inputText);
   Expression i = input();
@@ -358,11 +251,19 @@ Calculation::AdditionalInformationType Calculation::additionalInformationType(Co
    * - > input: 2cos(2) - cos(2)
    *   > output: cos(2)
    */
-  if (input().isDefinedCosineOrSine(context, complexFormat, preferences->angleUnit()) || o.isDefinedCosineOrSine(context, complexFormat, preferences->angleUnit())) {
+   if (i.isDefinedCosineOrSineOrTangent(context, complexFormat, preferences->angleUnit())) {
-    return AdditionalInformationType::Trigonometry;
+    return AdditionalInformationType::TrigonometryInput;
+  }
+  if (o.isDefinedCosineOrSineOrTangent(context, complexFormat, preferences->angleUnit())) {
+    return AdditionalInformationType::TrigonometryOutput;
+  }
+  if (o.hasUnit()) {
+    Expression unit;
+    PoincareHelpers::ReduceAndRemoveUnit(&o, App::app()->localContext(), ExpressionNode::ReductionTarget::User, &unit, ExpressionNode::SymbolicComputation::ReplaceAllSymbolsWithDefinitionsOrUndefined, ExpressionNode::UnitConversion::None);
+    UnitNode::Vector<int> vector = UnitNode::Vector<int>::FromBaseUnits(unit);
+    const Unit::Representative * representative = Unit::Representative::RepresentativeForDimension(vector);
+    return representative != nullptr ? AdditionalInformationType::Unit : AdditionalInformationType::None;
   }
-
-  // TODO: return AdditionalInformationType::Unit
   if (o.isBasedIntegerCappedBy(k_maximalIntegerWithAdditionalInformation)) {
     return AdditionalInformationType::Integer;
   }
@@ -373,6 +274,12 @@ Calculation::AdditionalInformationType Calculation::additionalInformationType(Co
   if (o.hasDefinedComplexApproximation(context, complexFormat, preferences->angleUnit())) {
     return AdditionalInformationType::Complex;
   }
+  if (o.type() == ExpressionNode::Type::Matrix) {
+    return AdditionalInformationType::Matrix;
+  }
+  if (o.polynomialDegree(context, "x") == 2) {
+    return AdditionalInformationType::SecondDegree;
+  }
   return AdditionalInformationType::None;
 }
 

apps/calculation/calculation.h

@@ -21,6 +21,7 @@ class CalculationStore;
 class Calculation {
 friend CalculationStore;
 public:
+  static constexpr int k_numberOfExpressions = 4;
   enum class EqualSign : uint8_t {
     Unknown,
     Approximation,
@@ -38,8 +39,11 @@ public:
     None = 0,
     Integer,
     Rational,
-    Trigonometry,
+    SecondDegree,
+    TrigonometryInput,
+    TrigonometryOutput,
     Unit,
+    Matrix,
     Complex
   };
   static bool DisplaysExact(DisplayOutput d) { return d != DisplayOutput::ApproximateOnly; }
@@ -48,7 +52,7 @@ public:
    * calculations instead of clearing less space, then fail to serialize, clear
    * more space, fail to serialize, clear more space, etc., until reaching
    * sufficient free space. */
-  static int MinimalSize() { return sizeof(uint8_t) + 2*sizeof(KDCoordinate) + sizeof(uint8_t) + 3*Constant::MaxSerializedExpressionSize; }
+  static int MinimalSize() { return sizeof(uint8_t) + 2*sizeof(KDCoordinate) + sizeof(uint8_t) + 3*Constant::MaxSerializedExpressionSize + sizeof(Calculation *); }
 
   Calculation() :
     m_displayOutput(DisplayOutput::Unknown),
@@ -61,8 +65,6 @@ public:
   bool operator==(const Calculation& c);
   Calculation * next() const;
 
-  void tidy();
-
   // Texts
   enum class NumberOfSignificantDigits {
     Maximal,
@@ -83,8 +85,8 @@ public:
   Poincare::Layout createExactOutputLayout(bool * couldNotCreateExactLayout);
   Poincare::Layout createApproximateOutputLayout(Poincare::Context * context, bool * couldNotCreateApproximateLayout);
 
-  // Memoization of height
+  // Heights
-  KDCoordinate height(Poincare::Context * context, bool expanded = false, bool allExpressionsInline = false);
+  KDCoordinate height(bool expanded);
 
   // Displayed output
   DisplayOutput displayOutput(Poincare::Context * context);
@@ -95,10 +97,11 @@ public:
   // Additional Information
   AdditionalInformationType additionalInformationType(Poincare::Context * context);
 private:
-  static constexpr int maxWidth = 314;
-  static constexpr int k_numberOfExpressions = 4;
   static constexpr KDCoordinate k_heightComputationFailureHeight = 50;
-  static constexpr const char * k_maximalIntegerWithAdditionalInformation = "10000000000000000";
+  static constexpr const char * k_maximalIntegerWithAdditionalInformation = "18446744073709551617"; // 2^64 + 1
+
+  void setHeights(KDCoordinate height, KDCoordinate expandedHeight);
+
   /* Buffers holding text expressions have to be longer than the text written
    * by user (of maximum length TextField::maxBufferSize()) because when we
    * print an expression we add omitted signs (multiplications, parenthesis...) */

apps/calculation/calculation_store.cpp

@@ -4,65 +4,128 @@
 #include <poincare/rational.h>
 #include <poincare/symbol.h>
 #include <poincare/undefined.h>
+#include "../exam_mode_configuration.h"
 #include <assert.h>
 
+#if defined _FXCG || defined NSPIRE_NEWLIB
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <apps/shared/global_context.h>
+
+static KDCoordinate dummyHeight(::Calculation::Calculation * c, bool expanded) {
+  bool b;
+  Poincare::Layout l = c->createExactOutputLayout(&b);
+  if (!b) {
+    l=c->createInputLayout();
+  }
+  KDSize s = l.layoutSize();
+  const int bordersize = 10;
+  int h = s.height() + bordersize;
+  const int maxheight = 64;
+  if (h > maxheight) {
+    return maxheight;
+  }
+  return h;
+}
+
+extern void * last_calculation_history;
+void * last_calculation_history = 0;
+const char * retrieve_calc_history();
+
+#endif
+
 using namespace Poincare;
 using namespace Shared;
 
 namespace Calculation {
 
-CalculationStore::CalculationStore() :
+CalculationStore::CalculationStore(char * buffer, int size) :
-  m_bufferEnd(m_buffer),
+  m_buffer(buffer),
+  m_bufferSize(size),
+  m_calculationAreaEnd(m_buffer),
   m_numberOfCalculations(0),
-  m_slidedBuffer(false),
+  m_trashIndex(-1)
-  m_indexOfFirstMemoizedCalculationPointer(0)
 {
-  resetMemoizedModelsAfterCalculationIndex(-1);
+  assert(m_buffer != nullptr);
-}
+  assert(m_bufferSize > 0);
-
+#if defined _FXCG || defined NSPIRE_NEWLIB
-ExpiringPointer<Calculation> CalculationStore::calculationAtIndex(int i) {
+  if (last_calculation_history == 0){
-  assert(!m_slidedBuffer);
+    // Restore from scriptstore
-  assert(i >= 0 && i < m_numberOfCalculations);
+    const char * buf=retrieve_calc_history();
-  assert(m_indexOfFirstMemoizedCalculationPointer >= 0);
+    if (buf) {
-  if (i >= m_indexOfFirstMemoizedCalculationPointer && i < m_indexOfFirstMemoizedCalculationPointer + k_numberOfMemoizedCalculationPointers) {
+      Shared::GlobalContext globalContext;
-    // The calculation is within the range of memoized calculations
+      char * ptr=(char *)buf;
-    Calculation * c = m_memoizedCalculationPointers[i-m_indexOfFirstMemoizedCalculationPointer];
+      for (;*ptr;) {
-    if (c != nullptr) {
+	      for (;*ptr;++ptr) {
-      // The pointer was memoized
+          if (*ptr=='\n') {
-      return ExpiringPointer<Calculation>(c);
+            break;
+          }
+	      }
+	      char c = *ptr;
+	      *ptr=0;
+	      if (ptr > buf) {
+          push(buf,&globalContext, dummyHeight);
+        }
+        *ptr = c;
+        ++ptr;
+        buf = ptr;
+      }
     }
-    c = bufferCalculationAtIndex(i);
+    last_calculation_history = (void *) this;
-    m_memoizedCalculationPointers[i-m_indexOfFirstMemoizedCalculationPointer] = c;
-    return c;
   }
-  // Slide the memoization buffer
+#endif
-  if (i >= m_indexOfFirstMemoizedCalculationPointer) {
-    // Slide the memoization buffer to the left
-    memmove(m_memoizedCalculationPointers, m_memoizedCalculationPointers+1, (k_numberOfMemoizedCalculationPointers - 1) * sizeof(Calculation *));
-    m_memoizedCalculationPointers[k_numberOfMemoizedCalculationPointers - 1] = nullptr;
-    m_indexOfFirstMemoizedCalculationPointer++;
-  } else {
-    // Slide the memoization buffer to the right
-    memmove(m_memoizedCalculationPointers+1, m_memoizedCalculationPointers, (k_numberOfMemoizedCalculationPointers - 1) * sizeof(Calculation *));
-    m_memoizedCalculationPointers[0] = nullptr;
-    m_indexOfFirstMemoizedCalculationPointer--;
-  }
-  return calculationAtIndex(i);
 }
 
-ExpiringPointer<Calculation> CalculationStore::push(const char * text, Context * context) {
+// Returns an expiring pointer to the calculation of index i, and ignore the trash
-  /* Compute ans now, before the buffer is slided and before the calculation
+ExpiringPointer<Calculation> CalculationStore::calculationAtIndex(int i) {
+#if defined _FXCG || defined NSPIRE_NEWLIB
+  last_calculation_history = (void *) this;
+#endif
+  if (m_trashIndex == -1 || i < m_trashIndex) {
+    return realCalculationAtIndex(i);
+  } else {
+    return realCalculationAtIndex(i + 1);
+  }
+}
+
+// Returns an expiring pointer to the real calculation of index i
+ExpiringPointer<Calculation> CalculationStore::realCalculationAtIndex(int i) {
+  assert(i >= 0 && i < m_numberOfCalculations);
+  // m_buffer is the address of the oldest calculation in calculation store
+  Calculation * c = (Calculation *) m_buffer;
+  if (i != m_numberOfCalculations-1) {
+    // The calculation we want is not the oldest one so we get its pointer
+    c = *reinterpret_cast<Calculation**>(addressOfPointerToCalculationOfIndex(i+1));
+  }
+  return ExpiringPointer<Calculation>(c);
+}
+
+// Pushes an expression in the store
+ExpiringPointer<Calculation> CalculationStore::push(const char * text, Context * context, HeightComputer heightComputer) {
+  emptyTrash();
+  /* Compute ans now, before the buffer is updated and before the calculation
    * might be deleted */
   Expression ans = ansExpression(context);
 
-  // Prepare the buffer for the new calculation
+  /* Prepare the buffer for the new calculation
-  int minSize = Calculation::MinimalSize();
+   * The minimal size to store the new calculation is the minimal size of a calculation plus the pointer to its end */
-  assert(k_bufferSize > minSize);
+  int minSize = Calculation::MinimalSize() + sizeof(Calculation *);
-  while (remainingBufferSize() < minSize || m_numberOfCalculations > k_maxNumberOfCalculations) {
+  assert(m_bufferSize > minSize);
-    deleteLastCalculation();
+  while (remainingBufferSize() < minSize) {
+    // If there is no more space to store a calculation, we delete the oldest one
+    deleteOldestCalculation();
   }
-  char * newCalculationsLocation = slideCalculationsToEndOfBuffer();
+
-  char * nextSerializationLocation = m_buffer;
+  // Getting the adresses of the limits of the free space
+  char * beginingOfFreeSpace = (char *)m_calculationAreaEnd;
+  char * endOfFreeSpace = beginingOfMemoizationArea();
+  char * previousCalc = beginingOfFreeSpace;
 
   // Add the beginning of the calculation
   {
@@ -70,23 +133,23 @@ ExpiringPointer<Calculation> CalculationStore::push(const char * text, Context *
      * available, so this memmove will not overide anything. */
     Calculation newCalc = Calculation();
     size_t calcSize = sizeof(newCalc);
-    memmove(nextSerializationLocation, &newCalc, calcSize);
+    memcpy(beginingOfFreeSpace, &newCalc, calcSize);
-    nextSerializationLocation += calcSize;
+    beginingOfFreeSpace += calcSize;
   }
 
   /* Add the input expression.
    * We do not store directly the text entered by the user because we do not
    * want to keep Ans symbol in the calculation store. */
-  const char * inputSerialization = nextSerializationLocation;
+  const char * inputSerialization = beginingOfFreeSpace;
   {
     Expression input = Expression::Parse(text, context).replaceSymbolWithExpression(Symbol::Ans(), ans);
-    if (!pushSerializeExpression(input, nextSerializationLocation, &newCalculationsLocation)) {
+    if (!pushSerializeExpression(input, beginingOfFreeSpace, &endOfFreeSpace)) {
       /* If the input does not fit in the store (event if the current
        * calculation is the only calculation), just replace the calculation with
        * undef. */
-      return emptyStoreAndPushUndef(context);
+      return emptyStoreAndPushUndef(context, heightComputer);
     }
-    nextSerializationLocation += strlen(nextSerializationLocation) + 1;
+    beginingOfFreeSpace += strlen(beginingOfFreeSpace) + 1;
   }
 
   // Compute and serialize the outputs
@@ -98,73 +161,93 @@ ExpiringPointer<Calculation> CalculationStore::push(const char * text, Context *
     // Outputs hold exact output, approximate output and its duplicate
     constexpr static int numberOfOutputs = Calculation::k_numberOfExpressions - 1;
     Expression outputs[numberOfOutputs] = {Expression(), Expression(), Expression()};
-    // SYMBOLIC COMPUTATION <= E12: PoincareHelpers::ParseAndSimplifyAndApproximate(inputSerialization, &(outputs[0]), &(outputs[1]), context, GlobalPreferences::sharedGlobalPreferences()->isInExamModeSymbolic()); // Symbolic computation
     PoincareHelpers::ParseAndSimplifyAndApproximate(inputSerialization, &(outputs[0]), &(outputs[1]), context, GlobalPreferences::sharedGlobalPreferences()->isInExamModeSymbolic() ? Poincare::ExpressionNode::SymbolicComputation::ReplaceAllDefinedSymbolsWithDefinition : Poincare::ExpressionNode::SymbolicComputation::ReplaceAllSymbolsWithDefinitionsOrUndefined);
+    if (ExamModeConfiguration::exactExpressionsAreForbidden(GlobalPreferences::sharedGlobalPreferences()->examMode()) && outputs[1].hasUnit()) {
+      // Hide results with units on units if required by the exam mode configuration
+      outputs[1] = Undefined::Builder();
+    }
     outputs[2] = outputs[1];
     int numberOfSignificantDigits = Poincare::PrintFloat::k_numberOfStoredSignificantDigits;
     for (int i = 0; i < numberOfOutputs; i++) {
       if (i == numberOfOutputs - 1) {
         numberOfSignificantDigits = Poincare::Preferences::sharedPreferences()->numberOfSignificantDigits();
       }
-      if (!pushSerializeExpression(outputs[i], nextSerializationLocation, &newCalculationsLocation, numberOfSignificantDigits)) {
+      if (!pushSerializeExpression(outputs[i], beginingOfFreeSpace, &endOfFreeSpace, numberOfSignificantDigits)) {
-        /* If the exat/approximate output does not fit in the store (event if the
+        /* If the exact/approximate output does not fit in the store (event if the
          * current calculation is the only calculation), replace the output with
-         * undef if it fits, else replace the whole calcualtion with undef. */
+         * undef if it fits, else replace the whole calculation with undef. */
         Expression undef = Undefined::Builder();
-        if (!pushSerializeExpression(undef, nextSerializationLocation, &newCalculationsLocation)) {
+        if (!pushSerializeExpression(undef, beginingOfFreeSpace, &endOfFreeSpace)) {
-          return emptyStoreAndPushUndef(context);
+          return emptyStoreAndPushUndef(context, heightComputer);
         }
       }
-      nextSerializationLocation += strlen(nextSerializationLocation) + 1;
+      beginingOfFreeSpace += strlen(beginingOfFreeSpace) + 1;
     }
   }
+  // Storing the pointer of the end of the new calculation
+  memcpy(endOfFreeSpace-sizeof(Calculation*),&beginingOfFreeSpace,sizeof(beginingOfFreeSpace));
 
-  // Restore the other calculations
+  // The new calculation is now stored
-  size_t slideSize = m_buffer + k_bufferSize - newCalculationsLocation;
-  memcpy(nextSerializationLocation, newCalculationsLocation, slideSize);
-  m_slidedBuffer = false;
   m_numberOfCalculations++;
-  m_bufferEnd+= nextSerializationLocation - m_buffer;
 
-  // Clean the memoization
+  // The end of the calculation storage area is updated
-  resetMemoizedModelsAfterCalculationIndex(-1);
+  m_calculationAreaEnd += beginingOfFreeSpace - previousCalc;
-
+  ExpiringPointer<Calculation> calculation = ExpiringPointer<Calculation>(reinterpret_cast<Calculation *>(previousCalc));
-  return ExpiringPointer<Calculation>(reinterpret_cast<Calculation *>(m_buffer));
+  /* Heights are computed now to make sure that the display output is decided
+   * accordingly to the remaining size in the Poincare pool. Once it is, it
+   * can't change anymore: the calculation heights are fixed which ensures that
+   * scrolling computation is right. */
+  calculation->setHeights(
+      heightComputer(calculation.pointer(), false),
+      heightComputer(calculation.pointer(), true));
+  return calculation;
 }
 
+// Delete the calculation of index i
 void CalculationStore::deleteCalculationAtIndex(int i) {
+  if (m_trashIndex != -1) {
+    emptyTrash();
+  }
+  m_trashIndex = i;
+}
+
+// Delete the calculation of index i, internal algorithm
+void CalculationStore::realDeleteCalculationAtIndex(int i) {
   assert(i >= 0 && i < m_numberOfCalculations);
-  assert(!m_slidedBuffer);
+  if (i == 0) {
-  ExpiringPointer<Calculation> calcI = calculationAtIndex(i);
+    ExpiringPointer<Calculation> lastCalculationPointer = realCalculationAtIndex(0);
-  char * nextCalc = reinterpret_cast<char *>(calcI->next());
+    m_calculationAreaEnd = (char *)(lastCalculationPointer.pointer());
-  assert(m_bufferEnd >= nextCalc);
+    m_numberOfCalculations--;
-  size_t slidingSize = m_bufferEnd - nextCalc;
-  memmove((char *)(calcI.pointer()), nextCalc, slidingSize);
-  m_bufferEnd -= (nextCalc - (char *)(calcI.pointer()));
-  m_numberOfCalculations--;
-  resetMemoizedModelsAfterCalculationIndex(i);
-}
-
-void CalculationStore::deleteAll() {
-  /* We might call deleteAll because the app closed due to a pool allocation
-   * failure, so we cannot assert that m_slidedBuffer is false. */
-  m_slidedBuffer = false;
-  m_bufferEnd = m_buffer;
-  m_numberOfCalculations = 0;
-  resetMemoizedModelsAfterCalculationIndex(-1);
-}
-
-void CalculationStore::tidy() {
-  if (m_slidedBuffer) {
-    deleteAll();
     return;
   }
-  resetMemoizedModelsAfterCalculationIndex(-1);
+  char * calcI = (char *)realCalculationAtIndex(i).pointer();
-  for (Calculation * c : *this) {
+  char * nextCalc = (char *) realCalculationAtIndex(i-1).pointer();
-    c->tidy();
+  assert(m_calculationAreaEnd >= nextCalc);
-  }
+  size_t slidingSize = m_calculationAreaEnd - nextCalc;
+  // Slide the i-1 most recent calculations right after the i+1'th
+  memmove(calcI, nextCalc, slidingSize);
+  m_calculationAreaEnd -= nextCalc - calcI;
+  // Recompute pointer to calculations after the i'th
+  recomputeMemoizedPointersAfterCalculationIndex(i);
+  m_numberOfCalculations--;
 }
 
+// Delete the oldest calculation in the store and returns the amount of space freed by the operation
+size_t CalculationStore::deleteOldestCalculation() {
+  char * oldBufferEnd = (char *) m_calculationAreaEnd;
+  realDeleteCalculationAtIndex(numberOfCalculations()-1);
+  char * newBufferEnd = (char *) m_calculationAreaEnd;
+  return oldBufferEnd - newBufferEnd;
+}
+
+// Delete all calculations
+void CalculationStore::deleteAll() {
+  m_trashIndex = -1;
+  m_calculationAreaEnd = m_buffer;
+  m_numberOfCalculations = 0;
+}
+
+// Replace "Ans" by its expression
 Expression CalculationStore::ansExpression(Context * context) {
   if (numberOfCalculations() == 0) {
     return Rational::Builder(0);
@@ -176,99 +259,55 @@ Expression CalculationStore::ansExpression(Context * context) {
    * parsed), ans is replaced by the approximation output when any Store or
    * Equal expression appears. */
   Expression e = mostRecentCalculation->exactOutput();
-  bool exactOuptutInvolvesStoreEqual = e.type() == ExpressionNode::Type::Store || e.type() == ExpressionNode::Type::Equal;
+  bool exactOutputInvolvesStoreEqual = e.type() == ExpressionNode::Type::Store || e.type() == ExpressionNode::Type::Equal;
-  if (mostRecentCalculation->input().recursivelyMatches(Expression::IsApproximate, context) || exactOuptutInvolvesStoreEqual) {
+  if (mostRecentCalculation->input().recursivelyMatches(Expression::IsApproximate, context) || exactOutputInvolvesStoreEqual) {
     return mostRecentCalculation->approximateOutput(context, Calculation::NumberOfSignificantDigits::Maximal);
   }
   return mostRecentCalculation->exactOutput();
 }
 
-Calculation * CalculationStore::bufferCalculationAtIndex(int i) {
+// Push converted expression in the buffer
-  int currentIndex = 0;
-  for (Calculation * c : *this) {
-    if (currentIndex == i) {
-      return c;
-    }
-    currentIndex++;
-  }
-  assert(false);
-  return nullptr;
-}
-
 bool CalculationStore::pushSerializeExpression(Expression e, char * location, char * * newCalculationsLocation, int numberOfSignificantDigits) {
-  assert(m_slidedBuffer);
+  assert(*newCalculationsLocation <= m_buffer + m_bufferSize);
-  assert(*newCalculationsLocation <= m_buffer + k_bufferSize);
   bool expressionIsPushed = false;
   while (true) {
     size_t locationSize = *newCalculationsLocation - location;
     expressionIsPushed = (PoincareHelpers::Serialize(e, location, locationSize, numberOfSignificantDigits) < (int)locationSize-1);
-    if (expressionIsPushed || *newCalculationsLocation >= m_buffer + k_bufferSize) {
+    if (expressionIsPushed || *newCalculationsLocation >= m_buffer + m_bufferSize) {
       break;
     }
-    *newCalculationsLocation = *newCalculationsLocation + deleteLastCalculation();
+    *newCalculationsLocation = *newCalculationsLocation + deleteOldestCalculation();
-    assert(*newCalculationsLocation <= m_buffer + k_bufferSize);
+    assert(*newCalculationsLocation <= m_buffer + m_bufferSize);
   }
   return expressionIsPushed;
 }
 
-char * CalculationStore::slideCalculationsToEndOfBuffer() {
+void CalculationStore::emptyTrash() {
-  int calculationsSize = m_bufferEnd - m_buffer;
+  if (m_trashIndex != -1) {
-  char * calculationsNewPosition = m_buffer + k_bufferSize - calculationsSize;
+    realDeleteCalculationAtIndex(m_trashIndex);
-  memmove(calculationsNewPosition, m_buffer, calculationsSize);
+    m_trashIndex = -1;
-  m_slidedBuffer = true;
-  return calculationsNewPosition;
-}
-
-size_t CalculationStore::deleteLastCalculation(const char * calculationsStart) {
-  assert(m_numberOfCalculations > 0);
-  size_t result;
-  if (!m_slidedBuffer) {
-    assert(calculationsStart == nullptr);
-    const char * previousBufferEnd = m_bufferEnd;
-    m_bufferEnd = lastCalculationPosition(m_buffer);
-    assert(previousBufferEnd > m_bufferEnd);
-    result = previousBufferEnd - m_bufferEnd;
-  } else {
-    assert(calculationsStart != nullptr);
-    const char * lastCalc = lastCalculationPosition(calculationsStart);
-    assert(*lastCalc == 0);
-    result = m_buffer + k_bufferSize - lastCalc;
-    memmove(const_cast<char *>(calculationsStart + result), calculationsStart, m_buffer + k_bufferSize - calculationsStart - result);
   }
-  m_numberOfCalculations--;
-  resetMemoizedModelsAfterCalculationIndex(-1);
-  return result;
 }
 
-const char * CalculationStore::lastCalculationPosition(const char * calculationsStart) const {
-  assert(calculationsStart >= m_buffer && calculationsStart < m_buffer + k_bufferSize);
-  Calculation * c = reinterpret_cast<Calculation *>(const_cast<char *>(calculationsStart));
-  int calculationIndex = 0;
-  while (calculationIndex < m_numberOfCalculations - 1) {
-    c = c->next();
-    calculationIndex++;
-  }
-  return reinterpret_cast<const char *>(c);
-}
 
-Shared::ExpiringPointer<Calculation> CalculationStore::emptyStoreAndPushUndef(Context * context) {
+Shared::ExpiringPointer<Calculation> CalculationStore::emptyStoreAndPushUndef(Context * context, HeightComputer heightComputer) {
   /* We end up here as a result of a failed calculation push. The store
    * attributes are not necessarily clean, so we need to reset them. */
-  m_slidedBuffer = false;
   deleteAll();
-  return push(Undefined::Name(), context);
+  return push(Undefined::Name(), context, heightComputer);
 }
 
-void CalculationStore::resetMemoizedModelsAfterCalculationIndex(int index) {
+// Recompute memoized pointers to the calculations after index i
-  if (index < m_indexOfFirstMemoizedCalculationPointer) {
+void CalculationStore::recomputeMemoizedPointersAfterCalculationIndex(int index) {
-    memset(&m_memoizedCalculationPointers, 0, k_numberOfMemoizedCalculationPointers * sizeof(Calculation *));
+  assert(index < m_numberOfCalculations);
-    return;
+  // Clear pointer and recompute new ones
-  }
+  Calculation * c = realCalculationAtIndex(index).pointer();
-  if (index >= m_indexOfFirstMemoizedCalculationPointer + k_numberOfMemoizedCalculationPointers) {
+  Calculation * nextCalc;
-    return;
+  while (index != 0) {
-  }
+    nextCalc = c->next();
-  for (int i = index - m_indexOfFirstMemoizedCalculationPointer; i < k_numberOfMemoizedCalculationPointers; i++) {
+    memcpy(addressOfPointerToCalculationOfIndex(index), &nextCalc, sizeof(Calculation *));
-    m_memoizedCalculationPointers[i] = nullptr;
+    c = nextCalc;
+    index--;
   }
 }
 

apps/calculation/calculation_store.h

@@ -7,36 +7,49 @@
 
 namespace Calculation {
 
-/* To optimize the storage space, we use one big buffer for all calculations.
+/*
- *
+  To optimize the storage space, we use one big buffer for all calculations.
- * The previous solution was to keep 10 calculations, each containing 3 buffers
+  The calculations are stored one after another while pointers to the end of each
- * (for input and outputs). To optimize the storage, we then wanted to put all
+  calculation are stored at the end of the buffer, in the opposite direction.
- * outputs in a cache where they could be deleted to add a new entry, and
+  By doing so, we can memoize every calculation entered while not limiting
- * recomputed on cache miss. However, the computation depends too much on the
+  the number of calculation stored in the buffer.
- * state of the memory for this to be possible. For instance:
+
- * 6->a
+  If the remaining space is too small for storing a new calculation, we
- * a+1
+  delete the oldest one.
- * Perform some big computations that remove a+1 from the cache
+
- * Delete a from the variable box.
+ Memory layout :
- * Scroll up to display a+1 : a does not exist anymore so the outputs won't be
+                                                                <- Available space for new calculations ->
- * recomputed correctly.
++--------------------------------------------------------------------------------------------------------------------+
- *
+|               |               |               |               |                                        |  |  |  |  |
- * Now we do not cap the number of calculations and just delete the oldests to
+| Calculation 3 | Calculation 2 | Calculation 1 | Calculation O |                                        |p0|p1|p2|p3|
- * create space for a new calculation. */
+|     Oldest    |               |               |               |                                        |  |  |  |  |
++--------------------------------------------------------------------------------------------------------------------+
+^               ^               ^               ^               ^                                        ^
+m_buffer        p3              p2              p1              p0                                       a
+
+m_calculationAreaEnd = p0
+a = addressOfPointerToCalculation(0)
+*/
 
 class CalculationStore {
 public:
   CalculationStore();
+  CalculationStore(char * buffer, int size);
   Shared::ExpiringPointer<Calculation> calculationAtIndex(int i);
-  Shared::ExpiringPointer<Calculation> push(const char * text, Poincare::Context * context);
+  typedef KDCoordinate (*HeightComputer)(Calculation * c, bool expanded);
+  Shared::ExpiringPointer<Calculation> push(const char * text, Poincare::Context * context, HeightComputer heightComputer);
   void deleteCalculationAtIndex(int i);
   void deleteAll();
-  int numberOfCalculations() const { return m_numberOfCalculations; }
+  int remainingBufferSize() const { assert(m_calculationAreaEnd >= m_buffer); return m_bufferSize - (m_calculationAreaEnd - m_buffer) - m_numberOfCalculations*sizeof(Calculation*); }
+  int numberOfCalculations() const { return m_numberOfCalculations - (m_trashIndex != -1); }
   Poincare::Expression ansExpression(Poincare::Context * context);
-  void tidy();
+  int bufferSize() { return m_bufferSize; }
+  void reinsertTrash() { m_trashIndex = -1; }
+
 private:
-  static constexpr int k_maxNumberOfCalculations = 25;
+  void emptyTrash();
-  static constexpr int k_bufferSize = 10 * Calculation::k_numberOfExpressions * Constant::MaxSerializedExpressionSize;
+  Shared::ExpiringPointer<Calculation> realCalculationAtIndex(int i);
+  void realDeleteCalculationAtIndex(int i);
 
   class CalculationIterator {
   public:
@@ -52,26 +65,23 @@ private:
   };
 
   CalculationIterator begin() const { return CalculationIterator(m_buffer); }
-  CalculationIterator end() const { return CalculationIterator(m_bufferEnd); }
+  CalculationIterator end() const { return CalculationIterator(m_calculationAreaEnd); }
 
-  Calculation * bufferCalculationAtIndex(int i);
-  int remainingBufferSize() const { assert(m_bufferEnd >= m_buffer); return k_bufferSize - (m_bufferEnd - m_buffer); }
   bool pushSerializeExpression(Poincare::Expression e, char * location, char * * newCalculationsLocation, int numberOfSignificantDigits = Poincare::PrintFloat::k_numberOfStoredSignificantDigits);
-  char * slideCalculationsToEndOfBuffer(); // returns the new position of the calculations
+  Shared::ExpiringPointer<Calculation> emptyStoreAndPushUndef(Poincare::Context * context, HeightComputer heightComputer);
-  size_t deleteLastCalculation(const char * calculationsStart = nullptr);
-  const char * lastCalculationPosition(const char * calculationsStart) const;
-  Shared::ExpiringPointer<Calculation> emptyStoreAndPushUndef(Poincare::Context * context);
 
-  char m_buffer[k_bufferSize];
+  char * m_buffer;
-  const char * m_bufferEnd;
+  int m_bufferSize;
+  const char * m_calculationAreaEnd;
   int m_numberOfCalculations;
-  bool m_slidedBuffer;
+  int m_trashIndex;
+
+  size_t deleteOldestCalculation();
+  char * addressOfPointerToCalculationOfIndex(int i) {return m_buffer + m_bufferSize - (m_numberOfCalculations - i)*sizeof(Calculation *);}
 
   // Memoization
-  static constexpr int k_numberOfMemoizedCalculationPointers = 10;
+  char * beginingOfMemoizationArea() {return addressOfPointerToCalculationOfIndex(0);};
-  void resetMemoizedModelsAfterCalculationIndex(int index);
+  void recomputeMemoizedPointersAfterCalculationIndex(int index);
-  int m_indexOfFirstMemoizedCalculationPointer;
-  mutable Calculation * m_memoizedCalculationPointers[k_numberOfMemoizedCalculationPointers];
 };
 
 }

apps/calculation/edit_expression_controller.cpp

@@ -9,7 +9,7 @@ using namespace Poincare;
 
 namespace Calculation {
 
-EditExpressionController::ContentView::ContentView(Responder * parentResponder, TableView * subview, InputEventHandlerDelegate * inputEventHandlerDelegate, TextFieldDelegate * textFieldDelegate, LayoutFieldDelegate * layoutFieldDelegate) :
+EditExpressionController::ContentView::ContentView(Responder * parentResponder, CalculationSelectableTableView * subview, InputEventHandlerDelegate * inputEventHandlerDelegate, TextFieldDelegate * textFieldDelegate, LayoutFieldDelegate * layoutFieldDelegate) :
   View(),
   m_mainView(subview),
   m_expressionField(parentResponder, inputEventHandlerDelegate, textFieldDelegate, layoutFieldDelegate)
@@ -38,26 +38,45 @@ void EditExpressionController::ContentView::reload() {
   markRectAsDirty(bounds());
 }
 
-EditExpressionController::EditExpressionController(Responder * parentResponder, InputEventHandlerDelegate * inputEventHandlerDelegate, HistoryController * historyController, CalculationStore * calculationStore) :
+EditExpressionController::EditExpressionController(Responder * parentResponder, InputEventHandlerDelegate * inputEventHandlerDelegate, char * cacheBuffer, size_t * cacheBufferInformation, HistoryController * historyController, CalculationStore * calculationStore) :
   ViewController(parentResponder),
+  m_cacheBuffer(cacheBuffer),
+  m_cacheBufferInformation(cacheBufferInformation),
   m_historyController(historyController),
   m_calculationStore(calculationStore),
-  m_contentView(this, (TableView *)m_historyController->view(), inputEventHandlerDelegate, this, this)
+  m_contentView(this, static_cast<CalculationSelectableTableView *>(m_historyController->view()), inputEventHandlerDelegate, this, this)
 {
-  m_cacheBuffer[0] = 0;
 }
 
 void EditExpressionController::insertTextBody(const char * text) {
+  Container::activeApp()->setFirstResponder(this);
   m_contentView.expressionField()->handleEventWithText(text, false, true);
 }
 
 void EditExpressionController::didBecomeFirstResponder() {
-  int lastRow = m_calculationStore->numberOfCalculations() > 0 ? m_calculationStore->numberOfCalculations()-1 : 0;
+  m_contentView.mainView()->scrollToBottom();
-  m_historyController->scrollToCell(0, lastRow);
   m_contentView.expressionField()->setEditing(true, false);
   Container::activeApp()->setFirstResponder(m_contentView.expressionField());
 }
 
+void EditExpressionController::restoreInput() {
+  m_contentView.expressionField()->restoreContent(m_cacheBuffer, *m_cacheBufferInformation);
+  clearCacheBuffer();
+}
+
+void EditExpressionController::memoizeInput() {
+  *m_cacheBufferInformation = m_contentView.expressionField()->moveCursorAndDumpContent(m_cacheBuffer, k_cacheBufferSize);
+}
+
+bool EditExpressionController::handleEvent(Ion::Events::Event event) {
+  if (event == Ion::Events::ShiftBack) {
+    m_historyController->reinsertTrash();
+    m_historyController->reload();
+    return true;
+  }
+  return false;
+}
+
 void EditExpressionController::viewWillAppear() {
   m_historyController->viewWillAppear();
 }
@@ -122,13 +141,13 @@ bool EditExpressionController::inputViewDidReceiveEvent(Ion::Events::Event event
     if (!myApp->isAcceptableText(m_cacheBuffer)) {
       return true;
     }
-    m_calculationStore->push(m_cacheBuffer, myApp->localContext());
+    m_calculationStore->push(m_cacheBuffer, myApp->localContext(), HistoryViewCell::Height);
     m_historyController->reload();
     return true;
   }
   if (event == Ion::Events::Up) {
     if (m_calculationStore->numberOfCalculations() > 0) {
-      m_cacheBuffer[0] = 0;
+      clearCacheBuffer();
       m_contentView.expressionField()->setEditing(false, false);
       Container::activeApp()->setFirstResponder(m_historyController);
     }
@@ -145,7 +164,7 @@ bool EditExpressionController::inputViewDidFinishEditing(const char * text, Layo
   } else {
     layoutR.serializeParsedExpression(m_cacheBuffer, k_cacheBufferSize, context);
   }
-  m_calculationStore->push(m_cacheBuffer, context);
+  m_calculationStore->push(m_cacheBuffer, context, HistoryViewCell::Height);
   m_historyController->reload();
   m_contentView.expressionField()->setEditing(true, true);
   telemetryReportEvent("Input", m_cacheBuffer);

apps/calculation/edit_expression_controller.h

@@ -7,18 +7,31 @@
 #include "../shared/text_field_delegate.h"
 #include "../shared/layout_field_delegate.h"
 #include "history_controller.h"
-#include "calculation_store.h"
+#include "selectable_table_view.h"
 
 namespace Calculation {
 
 /* TODO: implement a split view */
 class EditExpressionController : public ViewController, public Shared::TextFieldDelegate, public Shared::LayoutFieldDelegate {
 public:
-  EditExpressionController(Responder * parentResponder, InputEventHandlerDelegate * inputEventHandlerDelegate, HistoryController * historyController, CalculationStore * calculationStore);
+  EditExpressionController(Responder * parentResponder, InputEventHandlerDelegate * inputEventHandlerDelegate, char * cacheBuffer, size_t * cacheBufferInformation, HistoryController * historyController, CalculationStore * calculationStore);
+
+  /* k_layoutBufferMaxSize dictates the size under which the expression being
+   * edited can be remembered when the user leaves Calculation. */
+  static constexpr int k_layoutBufferMaxSize = 1024;
+  /* k_cacheBufferSize is the size of the array to which m_cacheBuffer points.
+   * It is used both as a way to buffer expression when pushing them the
+   * CalculationStore, and as a storage for the current input when leaving the
+   * application. */
+  static constexpr int k_cacheBufferSize = (k_layoutBufferMaxSize < Constant::MaxSerializedExpressionSize) ? Constant::MaxSerializedExpressionSize : k_layoutBufferMaxSize;
+
   View * view() override { return &m_contentView; }
   void didBecomeFirstResponder() override;
   void viewWillAppear() override;
   void insertTextBody(const char * text);
+  void restoreInput();
+  void memoizeInput();
+  bool handleEvent(Ion::Events::Event event) override;
 
   /* TextFieldDelegate */
   bool textFieldDidReceiveEvent(::TextField * textField, Ion::Events::Event event) override;
@@ -34,23 +47,24 @@ public:
 private:
   class ContentView : public View {
   public:
-    ContentView(Responder * parentResponder, TableView * subview, InputEventHandlerDelegate * inputEventHandlerDelegate, TextFieldDelegate * textFieldDelegate, LayoutFieldDelegate * layoutFieldDelegate);
+    ContentView(Responder * parentResponder, CalculationSelectableTableView * subview, InputEventHandlerDelegate * inputEventHandlerDelegate, TextFieldDelegate * textFieldDelegate, LayoutFieldDelegate * layoutFieldDelegate);
     void reload();
-    TableView * mainView() { return m_mainView; }
+    CalculationSelectableTableView * mainView() { return m_mainView; }
     ExpressionField * expressionField() { return &m_expressionField; }
   private:
     int numberOfSubviews() const override { return 2; }
     View * subviewAtIndex(int index) override;
     void layoutSubviews(bool force = false) override;
-    TableView * m_mainView;
+    CalculationSelectableTableView * m_mainView;
     ExpressionField m_expressionField;
   };
   void reloadView();
+  void clearCacheBuffer() { m_cacheBuffer[0] = 0; *m_cacheBufferInformation = 0; }
   bool inputViewDidReceiveEvent(Ion::Events::Event event, bool shouldDuplicateLastCalculation);
   bool inputViewDidFinishEditing(const char * text, Poincare::Layout layoutR);
   bool inputViewDidAbortEditing(const char * text);
-  static constexpr int k_cacheBufferSize = Constant::MaxSerializedExpressionSize;
+  char * m_cacheBuffer;
-  char m_cacheBuffer[k_cacheBufferSize];
+  size_t * m_cacheBufferInformation;
   HistoryController * m_historyController;
   CalculationStore * m_calculationStore;
   ContentView m_contentView;

apps/calculation/expression_field.cpp

@@ -1,6 +1,9 @@
 #include "expression_field.h"
 #include <poincare/symbol.h>
+#include <poincare/horizontal_layout.h>
+#include <poincare/code_point_layout.h>
 
+using namespace Poincare;
 namespace Calculation {
 
 bool ExpressionField::handleEvent(Ion::Events::Event event) {
@@ -17,10 +20,34 @@ bool ExpressionField::handleEvent(Ion::Events::Event event) {
        event == Ion::Events::Power ||
        event == Ion::Events::Square ||
        event == Ion::Events::Division ||
-       event == Ion::Events::Sto)) {
+       event == Ion::Events::Sto ||
+       event == Ion::Events::EE)) {
     handleEventWithText(Poincare::Symbol::k_ans);
   }
-  return(::ExpressionField::handleEvent(event));
+  if (event == Ion::Events::Minus
+      && isEditing()
+      && fieldHasOnlyAMinus()) {
+    setText(Poincare::Symbol::k_ans);
+  }
+  return (::ExpressionField::handleEvent(event));
+}
+
+bool ExpressionField::fieldHasOnlyAMinus() const {
+  if (editionIsInTextField()) {
+        const char *inputBuffer = m_textField.draftTextBuffer();
+        return (inputBuffer[0] == '-' && inputBuffer[1] == '\0');
+    } 
+    Layout layout = m_layoutField.layout();
+    if (layout.type() == LayoutNode::Type::HorizontalLayout && layout.numberOfChildren() == 1) {
+        Layout child = layout.childAtIndex(0);
+        if (child.type() == LayoutNode::Type::CodePointLayout) {
+            CodePointLayout &codePointLayout = static_cast<CodePointLayout &>(child);
+            if (codePointLayout.codePoint() == '-'){
+            return true;
+            }
+        }
+    }
+    return false;
 }
 
 }

apps/calculation/expression_field.h

@@ -7,9 +7,14 @@ namespace Calculation {
 
 class ExpressionField : public ::ExpressionField {
 public:
-  using ::ExpressionField::ExpressionField;
+  ExpressionField(Responder * parentResponder, InputEventHandlerDelegate * inputEventHandler, TextFieldDelegate * textFieldDelegate, LayoutFieldDelegate * layoutFieldDelegate) :
+  ::ExpressionField(parentResponder, inputEventHandler, textFieldDelegate, layoutFieldDelegate) {
+    setLayoutInsertionCursorEvent(Ion::Events::Up);
+  }
 protected:
   bool handleEvent(Ion::Events::Event event) override;
+private:
+  bool fieldHasOnlyAMinus() const;
 };
 
 }

apps/calculation/history_controller.cpp

@@ -1,5 +1,6 @@
 #include "history_controller.h"
 #include "app.h"
+#include <poincare/exception_checkpoint.h>
 #include <assert.h>
 
 using namespace Shared;
@@ -15,7 +16,10 @@ HistoryController::HistoryController(EditExpressionController * editExpressionCo
   m_complexController(editExpressionController),
   m_integerController(editExpressionController),
   m_rationalController(editExpressionController),
-  m_trigonometryController(editExpressionController)
+  m_secondDegreeController(editExpressionController),
+  m_trigonometryController(editExpressionController),
+  m_unitController(editExpressionController),
+  m_matrixController(editExpressionController)
 {
   for (int i = 0; i < k_maxNumberOfDisplayedRows; i++) {
     m_calculationHistory[i].setParentResponder(&m_selectableTableView);
@@ -37,9 +41,9 @@ void HistoryController::reload() {
    * the table view twice.
    */
   if (numberOfRows() > 0) {
-    m_selectableTableView.scrollToCell(0, numberOfRows()-1);
+    m_selectableTableView.scrollToBottom();
     // Force to reload last added cell (hide the burger and exact output if necessary)
-    tableViewDidChangeSelection(&m_selectableTableView, 0, numberOfRows()-1);
+    tableViewDidChangeSelectionAndDidScroll(&m_selectableTableView, 0, numberOfRows()-1);
   }
 }
 
@@ -78,11 +82,9 @@ bool HistoryController::handleEvent(Ion::Events::Event event) {
     EditExpressionController * editController = (EditExpressionController *)parentResponder();
     if (subviewType == SubviewType::Input) {
       m_selectableTableView.deselectTable();
-      Container::activeApp()->setFirstResponder(editController);
       editController->insertTextBody(calculationAtIndex(focusRow)->inputText());
     } else if (subviewType == SubviewType::Output) {
       m_selectableTableView.deselectTable();
-      Container::activeApp()->setFirstResponder(editController);
       Shared::ExpiringPointer<Calculation> calculation = calculationAtIndex(focusRow);
       ScrollableTwoExpressionsView::SubviewPosition outputSubviewPosition = selectedCell->outputView()->selectedSubviewPosition();
       if (outputSubviewPosition == ScrollableTwoExpressionsView::SubviewPosition::Right
@@ -99,15 +101,21 @@ bool HistoryController::handleEvent(Ion::Events::Event event) {
       Expression e = calculationAtIndex(focusRow)->exactOutput();
       if (additionalInfoType == Calculation::AdditionalInformationType::Complex) {
         vc = &m_complexController;
-      } else if (additionalInfoType == Calculation::AdditionalInformationType::Trigonometry) {
+      } else if (additionalInfoType == Calculation::AdditionalInformationType::SecondDegree) {
+        vc = &m_secondDegreeController;
+      } else if (additionalInfoType == Calculation::AdditionalInformationType::TrigonometryInput) {
         vc = &m_trigonometryController;
-        // Find which of the input or output is the cosine/sine
+        e = calculationAtIndex(focusRow)->input();
-        ExpressionNode::Type t = e.type();
+      } else if (additionalInfoType == Calculation::AdditionalInformationType::TrigonometryOutput) {
-        e = t == ExpressionNode::Type::Cosine || t == ExpressionNode::Type::Sine ? e : calculationAtIndex(focusRow)->input();
+        vc = &m_trigonometryController;
-      } else if (additionalInfoType == Calculation::AdditionalInformationType::Integer) {
+      }  else if (additionalInfoType == Calculation::AdditionalInformationType::Integer) {
         vc = &m_integerController;
       } else if (additionalInfoType == Calculation::AdditionalInformationType::Rational) {
         vc = &m_rationalController;
+      } else if (additionalInfoType == Calculation::AdditionalInformationType::Unit) {
+        vc = &m_unitController;
+      } else if (additionalInfoType == Calculation::AdditionalInformationType::Matrix) {
+        vc = &m_matrixController;
       }
       if (vc) {
         vc->setExpression(e);
@@ -120,24 +128,16 @@ bool HistoryController::handleEvent(Ion::Events::Event event) {
     int focusRow = selectedRow();
     SubviewType subviewType = selectedSubviewType();
     m_selectableTableView.deselectTable();
-    EditExpressionController * editController = (EditExpressionController *)parentResponder();
     m_calculationStore->deleteCalculationAtIndex(storeIndex(focusRow));
     reload();
     if (numberOfRows()== 0) {
-      Container::activeApp()->setFirstResponder(editController);
+      Container::activeApp()->setFirstResponder(parentResponder());
       return true;
     }
-    if (focusRow > 0) {
+    m_selectableTableView.selectCellAtLocation(0, focusRow > 0 ? focusRow - 1 : 0);
-      m_selectableTableView.selectCellAtLocation(0, focusRow-1);
+    /* The parameters 'sameCell' and 'previousSelectedY' are chosen to enforce
-    } else {
+     * toggling of the output when necessary. */
-      m_selectableTableView.selectCellAtLocation(0, 0);
+    setSelectedSubviewType(subviewType, false, 0, (subviewType == SubviewType::Input) ? selectedRow() : -1);
-    }
-    if (subviewType == SubviewType::Input) {
-      tableViewDidChangeSelection(&m_selectableTableView, 0, selectedRow());
-    } else {
-      tableViewDidChangeSelection(&m_selectableTableView, 0, -1);
-    }
-    m_selectableTableView.scrollToCell(0, selectedRow());
     return true;
   }
   if (event == Ion::Events::Clear) {
@@ -148,9 +148,8 @@ bool HistoryController::handleEvent(Ion::Events::Event event) {
     return true;
   }
   if (event == Ion::Events::Back) {
-    EditExpressionController * editController = (EditExpressionController *)parentResponder();
     m_selectableTableView.deselectTable();
-    Container::activeApp()->setFirstResponder(editController);
+    Container::activeApp()->setFirstResponder(parentResponder());
     return true;
   }
   return false;
@@ -160,19 +159,23 @@ Shared::ExpiringPointer<Calculation> HistoryController::calculationAtIndex(int i
   return m_calculationStore->calculationAtIndex(storeIndex(i));
 }
 
-void HistoryController::tableViewDidChangeSelection(SelectableTableView * t, int previousSelectedCellX, int previousSelectedCellY, bool withinTemporarySelection) {
+void HistoryController::tableViewDidChangeSelectionAndDidScroll(SelectableTableView * t, int previousSelectedCellX, int previousSelectedCellY, bool withinTemporarySelection) {
   if (withinTemporarySelection || previousSelectedCellY == selectedRow()) {
     return;
   }
   if (previousSelectedCellY == -1) {
     setSelectedSubviewType(SubviewType::Output, false, previousSelectedCellX, previousSelectedCellY);
-  } else if (selectedRow() < previousSelectedCellY) {
-    setSelectedSubviewType(SubviewType::Output, false, previousSelectedCellX, previousSelectedCellY);
-  } else if (selectedRow() > previousSelectedCellY) {
-    setSelectedSubviewType(SubviewType::Input, false, previousSelectedCellX, previousSelectedCellY);
   } else if (selectedRow() == -1) {
     setSelectedSubviewType(SubviewType::Input, false, previousSelectedCellX, previousSelectedCellY);
+  } else {
+    HistoryViewCell * selectedCell = (HistoryViewCell *)(t->selectedCell());
+    SubviewType nextSelectedSubviewType = selectedSubviewType();
+    if (selectedCell && !selectedCell->displaysSingleLine()) {
+      nextSelectedSubviewType = previousSelectedCellY < selectedRow() ? SubviewType::Input : SubviewType::Output;
+    }
+    setSelectedSubviewType(nextSelectedSubviewType, false, previousSelectedCellX, previousSelectedCellY);
   }
+  // The selectedCell may change during setSelectedSubviewType
   HistoryViewCell * selectedCell = (HistoryViewCell *)(t->selectedCell());
   if (selectedCell == nullptr) {
     return;
@@ -208,22 +211,29 @@ KDCoordinate HistoryController::rowHeight(int j) {
     return 0;
   }
   Shared::ExpiringPointer<Calculation> calculation = calculationAtIndex(j);
-  return calculation->height(App::app()->localContext(), j == selectedRow() && selectedSubviewType() == SubviewType::Output);
+  bool expanded = j == selectedRow() && selectedSubviewType() == SubviewType::Output;
+  return calculation->height(expanded);
 }
 
 int HistoryController::typeAtLocation(int i, int j) {
   return 0;
 }
 
-void HistoryController::scrollToCell(int i, int j) {
-  m_selectableTableView.scrollToCell(i, j);
-}
-
 bool HistoryController::calculationAtIndexToggles(int index) {
   Context * context = App::app()->localContext();
   return index >= 0 && index < m_calculationStore->numberOfCalculations() && calculationAtIndex(index)->displayOutput(context) == Calculation::DisplayOutput::ExactAndApproximateToggle;
 }
 
+
+void HistoryController::setSelectedSubviewType(SubviewType subviewType, bool sameCell, int previousSelectedX, int previousSelectedY) {
+  // Avoid selecting non-displayed ellipsis
+  HistoryViewCell * selectedCell = static_cast<HistoryViewCell *>(m_selectableTableView.selectedCell());
+  if (subviewType == SubviewType::Ellipsis && selectedCell && selectedCell->additionalInformationType() == Calculation::AdditionalInformationType::None) {
+    subviewType = SubviewType::Output;
+  }
+  HistoryViewCellDataSource::setSelectedSubviewType(subviewType, sameCell, previousSelectedX, previousSelectedY);
+}
+
 void HistoryController::historyViewCellDidChangeSelection(HistoryViewCell ** cell, HistoryViewCell ** previousCell, int previousSelectedCellX, int previousSelectedCellY, SubviewType type, SubviewType previousType) {
   /* If the selection change triggers the toggling of the outputs, we update
    * the whole table as the height of the selected cell row might have changed. */

apps/calculation/history_controller.h

@@ -8,7 +8,10 @@
 #include "additional_outputs/complex_list_controller.h"
 #include "additional_outputs/integer_list_controller.h"
 #include "additional_outputs/rational_list_controller.h"
+#include "additional_outputs/second_degree_list_controller.h"
 #include "additional_outputs/trigonometry_list_controller.h"
+#include "additional_outputs/unit_list_controller.h"
+#include "additional_outputs/matrix_list_controller.h"
 
 namespace Calculation {
 
@@ -30,8 +33,9 @@ public:
   void willDisplayCellForIndex(HighlightCell * cell, int index) override;
   KDCoordinate rowHeight(int j) override;
   int typeAtLocation(int i, int j) override;
-  void tableViewDidChangeSelection(SelectableTableView * t, int previousSelectedCellX, int previousSelectedCellY, bool withinTemporarySelection = false) override;
+  void setSelectedSubviewType(SubviewType subviewType, bool sameCell, int previousSelectedX = -1, int previousSelectedY = -1) override;
-  void scrollToCell(int i, int j);
+  void tableViewDidChangeSelectionAndDidScroll(SelectableTableView * t, int previousSelectedCellX, int previousSelectedCellY, bool withinTemporarySelection = false) override;
+  void reinsertTrash() { m_calculationStore->reinsertTrash(); }
 private:
   int storeIndex(int i) { return numberOfRows() - i - 1; }
   Shared::ExpiringPointer<Calculation> calculationAtIndex(int i);
@@ -45,7 +49,10 @@ private:
   ComplexListController m_complexController;
   IntegerListController m_integerController;
   RationalListController m_rationalController;
+  SecondDegreeListController m_secondDegreeController;
   TrigonometryListController m_trigonometryController;
+  UnitListController m_unitController;
+  MatrixListController m_matrixController;
 };
 
 }

apps/calculation/history_view_cell.cpp

@@ -5,17 +5,12 @@
 #include <poincare/exception_checkpoint.h>
 #include <assert.h>
 #include <string.h>
+#include <algorithm>
 
 namespace Calculation {
 
-static inline KDCoordinate minCoordinate(KDCoordinate x, KDCoordinate y) { return x < y ? x : y; }
-static inline KDCoordinate maxCoordinate(KDCoordinate x, KDCoordinate y) { return x > y ? x : y; }
-
 /* HistoryViewCellDataSource */
 
-HistoryViewCellDataSource::HistoryViewCellDataSource() :
-  m_selectedSubviewType(SubviewType::Output) {}
-
 void HistoryViewCellDataSource::setSelectedSubviewType(SubviewType subviewType, bool sameCell, int previousSelectedCellX, int previousSelectedCellY) {
   HistoryViewCell * selectedCell = nullptr;
   HistoryViewCell * previouslySelectedCell = nullptr;
@@ -30,6 +25,7 @@ void HistoryViewCellDataSource::setSelectedSubviewType(SubviewType subviewType,
   if (selectedCell) {
     selectedCell->reloadSubviewHighlight();
     selectedCell->cellDidSelectSubview(subviewType, previousSubviewType);
+    Container::activeApp()->setFirstResponder(selectedCell);
   }
   if (previouslySelectedCell) {
     previouslySelectedCell->cellDidSelectSubview(SubviewType::Input);
@@ -38,19 +34,26 @@ void HistoryViewCellDataSource::setSelectedSubviewType(SubviewType subviewType,
 
 /* HistoryViewCell */
 
-HistoryViewCell::HistoryViewCell(Responder * parentResponder) :
+KDCoordinate HistoryViewCell::Height(Calculation * calculation, bool expanded) {
-  Responder(parentResponder),
+  HistoryViewCell cell(nullptr);
-  m_calculationDisplayOutput(Calculation::DisplayOutput::Unknown),
+  cell.setCalculation(calculation, expanded, true);
-  m_calculationAdditionInformation(Calculation::AdditionalInformationType::None),
+  KDRect ellipsisFrame = KDRectZero;
-  m_calculationExpanded(false),
+  KDRect inputFrame = KDRectZero;
-  m_inputView(this, Metric::CommonLargeMargin, Metric::CommonSmallMargin),
+  KDRect outputFrame = KDRectZero;
-  m_scrollableOutputView(this)
+  cell.computeSubviewFrames(Ion::Display::Width, KDCOORDINATE_MAX, &ellipsisFrame, &inputFrame, &outputFrame);
-{
+  return k_margin + inputFrame.unionedWith(outputFrame).height() + k_margin;
-  m_calculationCRC32 = 0;
 }
 
-Shared::ScrollableTwoExpressionsView * HistoryViewCell::outputView() {
+HistoryViewCell::HistoryViewCell(Responder * parentResponder) :
-  return &m_scrollableOutputView;
+  Responder(parentResponder),
+  m_calculationCRC32(0),
+  m_calculationDisplayOutput(Calculation::DisplayOutput::Unknown),
+  m_calculationAdditionInformation(Calculation::AdditionalInformationType::None),
+  m_inputView(this, k_inputViewHorizontalMargin, k_inputOutputViewsVerticalMargin),
+  m_scrollableOutputView(this),
+  m_calculationExpanded(false),
+  m_calculationSingleLine(false)
+{
 }
 
 void HistoryViewCell::setEven(bool even) {
@@ -78,7 +81,7 @@ void HistoryViewCell::reloadSubviewHighlight() {
   m_ellipsis.setHighlighted(false);
   if (isHighlighted()) {
     if (m_dataSource->selectedSubviewType() == HistoryViewCellDataSource::SubviewType::Input) {
-      m_inputView.setExpressionBackgroundColor(Palette::ListCellBackgroundSelected);
+      m_inputView.setExpressionBackgroundColor(Palette::Select);
     } else if (m_dataSource->selectedSubviewType() == HistoryViewCellDataSource::SubviewType::Output) {
       m_scrollableOutputView.evenOddCell()->setHighlighted(true);
     } else {
@@ -138,15 +141,6 @@ void HistoryViewCell::cellDidSelectSubview(HistoryViewCellDataSource::SubviewTyp
   reloadScroll();
 }
 
-KDColor HistoryViewCell::backgroundColor() const {
-  KDColor background = m_even ? Palette::CalculationBackgroundEven : Palette::CalculationBackgroundOdd;
-  return background;
-}
-
-int HistoryViewCell::numberOfSubviews() const {
-  return 2 + displayedEllipsis();
-}
-
 View * HistoryViewCell::subviewAtIndex(int index) {
   /* The order of the subviews should not matter here as they don't overlap.
    * However, the order determines the order of redrawing as well. For several
@@ -170,29 +164,69 @@ View * HistoryViewCell::subviewAtIndex(int index) {
   return views[index];
 }
 
+bool HistoryViewCell::ViewsCanBeSingleLine(KDCoordinate inputViewWidth, KDCoordinate outputViewWidth) {
+  // k_margin is the separation between the input and output.
+  return (inputViewWidth + k_margin + outputViewWidth) < Ion::Display::Width - Metric::EllipsisCellWidth;
+}
+
 void HistoryViewCell::layoutSubviews(bool force) {
-  KDCoordinate maxFrameWidth = bounds().width();
+  KDRect frameBounds = bounds();
-  if (displayedEllipsis()) {
+  if (bounds().width() <= 0 || bounds().height() <= 0) {
-    m_ellipsis.setFrame(KDRect(maxFrameWidth - Metric::EllipsisCellWidth, 0, Metric::EllipsisCellWidth, bounds().height()), force);
+    // TODO Make this behaviour in a non-virtual layoutSublviews, and all layout subviews should become privateLayoutSubviews
-    maxFrameWidth -= Metric::EllipsisCellWidth;
+    return;
-  } else {
-    m_ellipsis.setFrame(KDRectZero, force); // Required to mark previous rect as dirty
   }
+  KDRect ellipsisFrame = KDRectZero;
+  KDRect inputFrame = KDRectZero;
+  KDRect outputFrame = KDRectZero;
+  computeSubviewFrames(frameBounds.width(), frameBounds.height(), &ellipsisFrame, &inputFrame, &outputFrame);
+
+  m_ellipsis.setFrame(ellipsisFrame, force); // Required even if ellipsisFrame is KDRectZero, to mark previous rect as dirty
+  m_inputView.setFrame(inputFrame,force);
+  m_scrollableOutputView.setFrame(outputFrame, force);
+}
+
+void HistoryViewCell::computeSubviewFrames(KDCoordinate frameWidth, KDCoordinate frameHeight, KDRect * ellipsisFrame, KDRect * inputFrame, KDRect * outputFrame) {
+  assert(ellipsisFrame != nullptr && inputFrame != nullptr && outputFrame != nullptr);
+
+  if (displayedEllipsis()) {
+    *ellipsisFrame = KDRect(frameWidth - Metric::EllipsisCellWidth, 0, Metric::EllipsisCellWidth, frameHeight);
+    frameWidth -= Metric::EllipsisCellWidth;
+  } else {
+    *ellipsisFrame = KDRectZero;
+  }
+
   KDSize inputSize = m_inputView.minimalSizeForOptimalDisplay();
-  m_inputView.setFrame(KDRect(
-    0, 0,
-    minCoordinate(maxFrameWidth, inputSize.width()),
-    inputSize.height()),
-  force);
   KDSize outputSize = m_scrollableOutputView.minimalSizeForOptimalDisplay();
-  int singleLine = outputSize.width() + inputSize.width() < bounds().width() - 6;
+
-  int outputHeight = (singleLine && Poincare::Preferences::sharedPreferences()->resultDisplay() == Poincare::Preferences::ResultDisplay::Compact) ? (maxCoordinate(0, inputSize.height() - outputSize.height()) / 2) + maxCoordinate(0, (inputSize.height() - outputSize.height()) / 2) : inputSize.height();
+  /* To compute if the calculation is on a single line, use the expanded width
-  m_scrollableOutputView.setFrame(KDRect(
+   * if there is both an exact and an approximate layout. */
-    maxCoordinate(0, maxFrameWidth - outputSize.width()),
+  m_calculationSingleLine = ViewsCanBeSingleLine(inputSize.width(), m_scrollableOutputView.minimalSizeForOptimalDisplayFullSize().width());
-    outputHeight,
+
-    minCoordinate(maxFrameWidth, outputSize.width()),
+  KDCoordinate inputY = k_margin;
-    outputSize.height()),
+  KDCoordinate outputY = k_margin;
-  force);
+  if (m_calculationSingleLine && !m_inputView.layout().isUninitialized()) {
+    KDCoordinate inputBaseline = m_inputView.layout().baseline();
+    KDCoordinate outputBaseline = m_scrollableOutputView.baseline();
+    KDCoordinate baselineDifference = outputBaseline - inputBaseline;
+    if (baselineDifference > 0) {
+      inputY += baselineDifference;
+    } else {
+      outputY += -baselineDifference;
+    }
+  } else {
+    outputY += inputSize.height();
+  }
+
+  *inputFrame = KDRect(
+        0,
+        inputY,
+        std::min(frameWidth, inputSize.width()),
+        inputSize.height());
+  *outputFrame = KDRect(
+        std::max(0, frameWidth - outputSize.width()),
+        outputY,
+        std::min(frameWidth, outputSize.width()),
+        outputSize.height());
 }
 
 void HistoryViewCell::resetMemoization() {
@@ -203,7 +237,7 @@ void HistoryViewCell::resetMemoization() {
   m_calculationCRC32 = 0;
 }
 
-void HistoryViewCell::setCalculation(Calculation * calculation, bool expanded) {
+void HistoryViewCell::setCalculation(Calculation * calculation, bool expanded, bool canChangeDisplayOutput) {
   uint32_t newCalculationCRC = Ion::crc32Byte((const uint8_t *)calculation, ((char *)calculation->next()) - ((char *) calculation));
   if (newCalculationCRC == m_calculationCRC32 && m_calculationExpanded == expanded) {
     return;
@@ -229,7 +263,7 @@ void HistoryViewCell::setCalculation(Calculation * calculation, bool expanded) {
     bool couldNotCreateExactLayout = false;
     exactOutputLayout = calculation->createExactOutputLayout(&couldNotCreateExactLayout);
     if (couldNotCreateExactLayout) {
-      if (calculation->displayOutput(context) != ::Calculation::Calculation::DisplayOutput::ExactOnly) {
+      if (canChangeDisplayOutput && calculation->displayOutput(context) != ::Calculation::Calculation::DisplayOutput::ExactOnly) {
         calculation->forceDisplayOutput(::Calculation::Calculation::DisplayOutput::ApproximateOnly);
       } else {
         /* We should only display the exact result, but we cannot create it
@@ -247,9 +281,7 @@ void HistoryViewCell::setCalculation(Calculation * calculation, bool expanded) {
     bool couldNotCreateApproximateLayout = false;
     approximateOutputLayout = calculation->createApproximateOutputLayout(context, &couldNotCreateApproximateLayout);
     if (couldNotCreateApproximateLayout) {
-      if (calculation->displayOutput(context) == ::Calculation::Calculation::DisplayOutput::ApproximateOnly) {
+      if (canChangeDisplayOutput && calculation->displayOutput(context) != ::Calculation::Calculation::DisplayOutput::ApproximateOnly) {
-        Poincare::ExceptionCheckpoint::Raise();
-      } else {
         /* Set the display output to ApproximateOnly, make room in the pool by
          * erasing the exact layout, and retry to create the approximate layout */
         calculation->forceDisplayOutput(::Calculation::Calculation::DisplayOutput::ApproximateOnly);
@@ -259,12 +291,15 @@ void HistoryViewCell::setCalculation(Calculation * calculation, bool expanded) {
         if (couldNotCreateApproximateLayout) {
           Poincare::ExceptionCheckpoint::Raise();
         }
+      } else {
+        Poincare::ExceptionCheckpoint::Raise();
       }
     }
   }
   m_calculationDisplayOutput = calculation->displayOutput(context);
 
   // We must set which subviews are displayed before setLayouts to mark the right rectangle as dirty
+  m_scrollableOutputView.setDisplayableCenter(m_calculationDisplayOutput == Calculation::DisplayOutput::ExactAndApproximate || m_calculationDisplayOutput == Calculation::DisplayOutput::ExactAndApproximateToggle);
   m_scrollableOutputView.setDisplayCenter(m_calculationDisplayOutput == Calculation::DisplayOutput::ExactAndApproximate || m_calculationExpanded);
   m_scrollableOutputView.setLayouts(Poincare::Layout(), exactOutputLayout, approximateOutputLayout);
   I18n::Message equalMessage = calculation->exactAndApproximateDisplayedOutputsAreEqual(context) == Calculation::EqualSign::Equal ? I18n::Message::Equal : I18n::Message::AlmostEqual;
@@ -286,31 +321,41 @@ void HistoryViewCell::didBecomeFirstResponder() {
 }
 
 bool HistoryViewCell::handleEvent(Ion::Events::Event event) {
-  assert(m_dataSource);
+  assert(m_dataSource != nullptr);
   HistoryViewCellDataSource::SubviewType type = m_dataSource->selectedSubviewType();
-  if ((event == Ion::Events::Down && type == HistoryViewCellDataSource::SubviewType::Input) ||
+  assert(type != HistoryViewCellDataSource::SubviewType::None);
-      (event == Ion::Events::Up && type == HistoryViewCellDataSource::SubviewType::Output) ||
+  HistoryViewCellDataSource::SubviewType otherSubviewType = HistoryViewCellDataSource::SubviewType::None;
-      (event == Ion::Events::Right && type != HistoryViewCellDataSource::SubviewType::Ellipsis && displayedEllipsis()) ||
+  if (m_calculationSingleLine) {
-      (event == Ion::Events::Left && type == HistoryViewCellDataSource::SubviewType::Ellipsis)) {
+    static_assert(
-    HistoryViewCellDataSource::SubviewType otherSubviewType;
+        static_cast<int>(HistoryViewCellDataSource::SubviewType::None) == 0
-    if (event == Ion::Events::Down) {
+        && static_cast<int>(HistoryViewCellDataSource::SubviewType::Input) == 1
-      otherSubviewType = HistoryViewCellDataSource::SubviewType::Output;
+        && static_cast<int>(HistoryViewCellDataSource::SubviewType::Output) == 2
-    } else if (event == Ion::Events::Up) {
+        && static_cast<int>(HistoryViewCellDataSource::SubviewType::Ellipsis) == 3,
-      otherSubviewType = HistoryViewCellDataSource::SubviewType::Input;
+        "The array types is not well-formed anymore");
-    } else if (event == Ion::Events::Right) {
+    HistoryViewCellDataSource::SubviewType types[] = {
-      otherSubviewType = HistoryViewCellDataSource::SubviewType::Ellipsis;
+      HistoryViewCellDataSource::SubviewType::None,
-    } else {
+      HistoryViewCellDataSource::SubviewType::Input,
-      assert(event == Ion::Events::Left);
+      HistoryViewCellDataSource::SubviewType::Output,
-      otherSubviewType = HistoryViewCellDataSource::SubviewType::Output;
+      displayedEllipsis() ? HistoryViewCellDataSource::SubviewType::Ellipsis : HistoryViewCellDataSource::SubviewType::None,
+      HistoryViewCellDataSource::SubviewType::None,
+    };
+    if (event == Ion::Events::Right || event == Ion::Events::Left) {
+      otherSubviewType = types[static_cast<int>(type) + (event == Ion::Events::Right ? 1 : -1)];
     }
-    m_dataSource->setSelectedSubviewType(otherSubviewType, true);
+  } else if ((event == Ion::Events::Down && type == HistoryViewCellDataSource::SubviewType::Input)
-    return true;
+      || (event == Ion::Events::Left && type == HistoryViewCellDataSource::SubviewType::Ellipsis))
+  {
+    otherSubviewType = HistoryViewCellDataSource::SubviewType::Output;
+  } else if (event == Ion::Events::Up && type == HistoryViewCellDataSource::SubviewType::Output) {
+    otherSubviewType = HistoryViewCellDataSource::SubviewType::Input;
+  } else if (event == Ion::Events::Right && type != HistoryViewCellDataSource::SubviewType::Ellipsis && displayedEllipsis()) {
+    otherSubviewType = HistoryViewCellDataSource::SubviewType::Ellipsis;
   }
-  return false;
+  if (otherSubviewType == HistoryViewCellDataSource::SubviewType::None) {
-}
+    return false;
-
+  }
-bool HistoryViewCell::displayedEllipsis() const {
+  m_dataSource->setSelectedSubviewType(otherSubviewType, true);
-  return m_highlighted && m_calculationAdditionInformation != Calculation::AdditionalInformationType::None;
+  return true;
 }
 
 }

apps/calculation/history_view_cell.h

@@ -12,14 +12,14 @@ class HistoryViewCell;
 class HistoryViewCellDataSource {
 public:
   enum class SubviewType {
-    None,
+    None = 0,
-    Input,
+    Input = 1,
-    Output,
+    Output = 2,
-    Ellipsis
+    Ellipsis = 3
   };
-  HistoryViewCellDataSource();
+  HistoryViewCellDataSource() : m_selectedSubviewType(SubviewType::Output) {}
-  void setSelectedSubviewType(SubviewType subviewType, bool sameCell, int previousSelectedX = -1, int previousSelectedY = -1);
+  virtual void setSelectedSubviewType(SubviewType subviewType, bool sameCell, int previousSelectedX = -1, int previousSelectedY = -1);
-  SubviewType selectedSubviewType() { return m_selectedSubviewType; }
+  SubviewType selectedSubviewType() const { return m_selectedSubviewType; }
 private:
   /* This method should belong to a delegate instead of a data source but as
    * both the data source and the delegate will be the same controller, we
@@ -31,39 +31,52 @@ private:
 
 class HistoryViewCell : public ::EvenOddCell, public Responder {
 public:
+  constexpr static KDCoordinate k_margin = Metric::CommonSmallMargin;
+  constexpr static KDCoordinate k_inputOutputViewsVerticalMargin = k_margin;
+  constexpr static KDCoordinate k_inputViewHorizontalMargin = Shared::AbstractScrollableMultipleExpressionsView::k_horizontalMargin;
+  static KDCoordinate Height(Calculation * calculation, bool expanded);
   HistoryViewCell(Responder * parentResponder = nullptr);
+  static bool ViewsCanBeSingleLine(KDCoordinate inputViewWidth, KDCoordinate outputViewWidth);
   void cellDidSelectSubview(HistoryViewCellDataSource::SubviewType type, HistoryViewCellDataSource::SubviewType previousType = HistoryViewCellDataSource::SubviewType::None);
   void setEven(bool even) override;
   void setHighlighted(bool highlight) override;
   void reloadSubviewHighlight();
   void setDataSource(HistoryViewCellDataSource * dataSource) { m_dataSource = dataSource; }
+  bool displaysSingleLine() const {
+    return m_calculationSingleLine;
+  }
   Responder * responder() override {
     return this;
   }
   Poincare::Layout layout() const override;
-  KDColor backgroundColor() const override;
+  KDColor backgroundColor() const override { return m_even ? Palette::CalculationBackgroundEven : Palette::CalculationBackgroundOdd; }
   void resetMemoization();
-  void setCalculation(Calculation * calculation, bool expanded);
+  void setCalculation(Calculation * calculation, bool expanded, bool canChangeDisplayOutput = false);
-  int numberOfSubviews() const override;
+  int numberOfSubviews() const override { return 2 + displayedEllipsis(); }
   View * subviewAtIndex(int index) override;
   void layoutSubviews(bool force = false) override;
   void didBecomeFirstResponder() override;
   bool handleEvent(Ion::Events::Event event) override;
-  Shared::ScrollableTwoExpressionsView * outputView();
+  Shared::ScrollableTwoExpressionsView * outputView() { return &m_scrollableOutputView; }
+  ScrollableExpressionView * inputView() { return &m_inputView; }
   Calculation::AdditionalInformationType additionalInformationType() const { return m_calculationAdditionInformation; }
 private:
   constexpr static KDCoordinate k_resultWidth = 80;
+  void computeSubviewFrames(KDCoordinate frameWidth, KDCoordinate frameHeight, KDRect * ellipsisFrame, KDRect * inputFrame, KDRect * outputFrame);
   void reloadScroll();
   void reloadOutputSelection(HistoryViewCellDataSource::SubviewType previousType);
-  bool displayedEllipsis() const;
+  bool displayedEllipsis() const {
+    return m_highlighted && m_calculationAdditionInformation != Calculation::AdditionalInformationType::None;
+  }
   uint32_t m_calculationCRC32;
   Calculation::DisplayOutput m_calculationDisplayOutput;
   Calculation::AdditionalInformationType m_calculationAdditionInformation;
-  bool m_calculationExpanded;
   ScrollableExpressionView m_inputView;
   Shared::ScrollableTwoExpressionsView m_scrollableOutputView;
   EvenOddCellWithEllipsis m_ellipsis;
   HistoryViewCellDataSource * m_dataSource;
+  bool m_calculationExpanded;
+  bool m_calculationSingleLine;
 };
 
 }

apps/calculation/selectable_table_view.cpp

@@ -1,4 +1,5 @@
 #include "selectable_table_view.h"
+#include <algorithm>
 
 namespace Calculation {
 
@@ -11,18 +12,23 @@ CalculationSelectableTableView::CalculationSelectableTableView(Responder * paren
   setDecoratorType(ScrollView::Decorator::Type::None);
 }
 
+void CalculationSelectableTableView::scrollToBottom() {
+  KDCoordinate contentOffsetX = contentOffset().x();
+  KDCoordinate contentOffsetY = dataSource()->cumulatedHeightFromIndex(dataSource()->numberOfRows()) - maxContentHeightDisplayableWithoutScrolling();
+  setContentOffset(KDPoint(contentOffsetX, contentOffsetY));
+}
+
 void CalculationSelectableTableView::scrollToCell(int i, int j) {
-  ::SelectableTableView::scrollToCell(i, j);
   if (m_contentView.bounds().height() < bounds().height()) {
     setTopMargin(bounds().height() - m_contentView.bounds().height());
   } else {
     setTopMargin(0);
   }
+  ::SelectableTableView::scrollToCell(i, j);
   ScrollView::layoutSubviews();
   if (m_contentView.bounds().height() - contentOffset().y() < bounds().height()) {
-    KDCoordinate contentOffsetX = contentOffset().x();
+    // Avoid empty space at the end of the table
-    KDCoordinate contentOffsetY = dataSource()->cumulatedHeightFromIndex(dataSource()->numberOfRows()) - maxContentHeightDisplayableWithoutScrolling();
+    scrollToBottom();
-    setContentOffset(KDPoint(contentOffsetX, contentOffsetY));
   }
 }
 
@@ -31,23 +37,63 @@ void CalculationSelectableTableView::scrollToSubviewOfTypeOfCellAtLocation(Histo
     return;
   }
   /* As we scroll, the selected calculation does not use the same history view
-   * cell, thus, we want to deselect the previous used history view cell. */
+   * cell, thus, we want to deselect the previous used history view cell. (*) */
   unhighlightSelectedCell();
 
   /* Main part of the scroll */
+  HistoryViewCell * cell = static_cast<HistoryViewCell *>(selectedCell());
+  assert(cell);
   KDCoordinate contentOffsetX = contentOffset().x();
-  KDCoordinate contentOffsetY = dataSource()->cumulatedHeightFromIndex(j+1) - maxContentHeightDisplayableWithoutScrolling();
+
-  if (subviewType == HistoryViewCellDataSource::SubviewType::Input) {
+  KDCoordinate contentOffsetY = dataSource()->cumulatedHeightFromIndex(j);
-    if (j == 0) {
+  if (cell->displaysSingleLine() && dataSource()->rowHeight(j) > maxContentHeightDisplayableWithoutScrolling()) {
-      contentOffsetY = 0;
+    /* If we cannot display the full calculation, we display the selected
-    } else {
+     * layout as close as possible to the top of the screen without drawing
-      contentOffsetY = dataSource()->cumulatedHeightFromIndex(j);
+     * empty space between the history and the input field.
-    }
+     *
+     * Below are some values we can assign to contentOffsetY, and the kinds of
+     * display they entail :
+     * (the selected cell is at index j)
+     *
+     * 1 - cumulatedHeightFromIndex(j)
+     *   Aligns the top of the cell with the top of the zone in which the
+     *   history can be drawn.
+     *
+     * 2 - (cumulatedHeightFromIndex(j+1)
+     *      - maxContentHeightDisplayableWithoutScrolling())
+     *   Aligns the bottom of the cell with the top of the input field.
+     *
+     * 3 - cumulatedHeightFromIndex(j) + baseline1 - baseline2
+     *   Aligns the top of the selected layout with the top of the screen (only
+     *   used when the selected layout is the smallest).
+     *
+     * The following drawing shows where the calculation would be aligned with
+     * each value of contentOffsetY, for the calculation (1/3)/(4/2) = 1/6.
+     *
+     *        (1)                 (2)                 (3)
+     *  +--------------+    +--------------+    +--------------+
+     *  |  1           |    | ---        - |    |  3         1 |
+     *  |  -           |    |  4         6 |    | ---        - |
+     *  |  3         1 |    |  -           |    |  4         6 |
+     *  | ---        - |    |  2           |    |  -           |
+     *  +--------------+    +--------------+    +--------------+
+     *  | (1/3)/(4/2)  |    | (1/3)/(4/2)  |    | (1/3)/(4/2)  |
+     *  +--------------+    +--------------+    +--------------+
+     *
+     * */
+    contentOffsetY += std::min(
+        dataSource()->rowHeight(j) - maxContentHeightDisplayableWithoutScrolling(),
+        std::max(0, (cell->inputView()->layout().baseline() - cell->outputView()->baseline()) * (subviewType == HistoryViewCellDataSource::SubviewType::Input ? -1 : 1)));
+  } else if (subviewType != HistoryViewCellDataSource::SubviewType::Input) {
+    contentOffsetY += dataSource()->rowHeight(j) - maxContentHeightDisplayableWithoutScrolling();
   }
+
   setContentOffset(KDPoint(contentOffsetX, contentOffsetY));
-  /* For the same reason, we have to rehighlight the new history view cell and
+  /* For the same reason as (*), we have to rehighlight the new history view
-   * reselect the first responder. */
+   * cell and reselect the first responder.
-  HistoryViewCell * cell = (HistoryViewCell *)(selectedCell());
+   * We have to recall "selectedCell" because when the table might have been
+   * relayouted in "setContentOffset".*/
+  cell = static_cast<HistoryViewCell *>(selectedCell());
   assert(cell);
   cell->setHighlighted(true);
   Container::activeApp()->setFirstResponder(cell);

apps/calculation/selectable_table_view.h

@@ -9,6 +9,7 @@ class CalculationSelectableTableView : public ::SelectableTableView {
 public:
   CalculationSelectableTableView(Responder * parentResponder, TableViewDataSource * dataSource,
     SelectableTableViewDataSource * selectionDataSource, SelectableTableViewDelegate * delegate = nullptr);
+  void scrollToBottom();
   void scrollToCell(int i, int j) override;
   void scrollToSubviewOfTypeOfCellAtLocation(HistoryViewCellDataSource::SubviewType subviewType, int i, int j);
 };

apps/calculation/test/calculation_store.cpp

@@ -5,124 +5,149 @@
 #include <assert.h>
 #include "../calculation_store.h"
 
+typedef ::Calculation::Calculation::DisplayOutput DisplayOutput;
+typedef ::Calculation::Calculation::EqualSign EqualSign ;
+typedef ::Calculation::Calculation::NumberOfSignificantDigits NumberOfSignificantDigits;
+
 using namespace Poincare;
 using namespace Calculation;
 
+static constexpr int calculationBufferSize = 10 * (sizeof(::Calculation::Calculation) + ::Calculation::Calculation::k_numberOfExpressions * ::Constant::MaxSerializedExpressionSize + sizeof(::Calculation::Calculation *));
+char calculationBuffer[calculationBufferSize];
+
+
 void assert_store_is(CalculationStore * store, const char * * result) {
   for (int i = 0; i < store->numberOfCalculations(); i++) {
     quiz_assert(strcmp(store->calculationAtIndex(i)->inputText(), result[i]) == 0);
   }
 }
 
+KDCoordinate dummyHeight(::Calculation::Calculation * c, bool expanded) { return 0; }
 
 QUIZ_CASE(calculation_store) {
   Shared::GlobalContext globalContext;
-  CalculationStore store;
+  CalculationStore store(calculationBuffer,calculationBufferSize);
   // Store is now {9, 8, 7, 6, 5, 4, 3, 2, 1, 0}
   const char * result[] = {"9", "8", "7", "6", "5", "4", "3", "2", "1", "0"};
   for (int i = 0; i < 10; i++) {
     char text[2] = {(char)(i+'0'), 0};
-    store.push(text, &globalContext);
+    store.push(text, &globalContext, dummyHeight);
     quiz_assert(store.numberOfCalculations() == i+1);
   }
   assert_store_is(&store, result);
 
   for (int i = 9; i > 0; i = i-2) {
-   store.deleteCalculationAtIndex(i);
+    store.deleteCalculationAtIndex(i);
   }
   // Store is now {9, 7, 5, 3, 1}
   const char * result2[] = {"9", "7", "5", "3", "1"};
   assert_store_is(&store, result2);
 
   store.deleteAll();
+
+  // Checking if the store handles correctly the delete of the oldest calculation when full
+  static int minSize = ::Calculation::Calculation::MinimalSize();
+  char text[2] = {'0', 0};
+  while (store.remainingBufferSize() > minSize) {
+    store.push(text, &globalContext, dummyHeight);
+  }
+  int numberOfCalculations1 = store.numberOfCalculations();
+  /* The buffer is now to  full to push a new calculation.
+   * Trying to push a new one should delete the oldest one*/
+  store.push(text, &globalContext, dummyHeight);
+  int numberOfCalculations2 = store.numberOfCalculations();
+  // The numberOfCalculations should be the same
+  quiz_assert(numberOfCalculations1 == numberOfCalculations2);
+  store.deleteAll();
+  quiz_assert(store.remainingBufferSize() == store.bufferSize());
 }
 
 QUIZ_CASE(calculation_ans) {
   Shared::GlobalContext globalContext;
-  CalculationStore store;
+  CalculationStore store(calculationBuffer,calculationBufferSize);
 
-  store.push("1+3/4", &globalContext);
+  store.push("1+3/4", &globalContext, dummyHeight);
-  store.push("ans+2/3", &globalContext);
+  store.push("ans+2/3", &globalContext, dummyHeight);
   Shared::ExpiringPointer<::Calculation::Calculation> lastCalculation = store.calculationAtIndex(0);
-  quiz_assert(lastCalculation->displayOutput(&globalContext) == ::Calculation::Calculation::DisplayOutput::ExactAndApproximate);
+  quiz_assert(lastCalculation->displayOutput(&globalContext) == DisplayOutput::ExactAndApproximate);
   quiz_assert(strcmp(lastCalculation->exactOutputText(),"29/12") == 0);
 
-  store.push("ans+0.22", &globalContext);
+  store.push("ans+0.22", &globalContext, dummyHeight);
   lastCalculation = store.calculationAtIndex(0);
-  quiz_assert(lastCalculation->displayOutput(&globalContext) == ::Calculation::Calculation::DisplayOutput::ExactAndApproximateToggle);
+  quiz_assert(lastCalculation->displayOutput(&globalContext) == DisplayOutput::ExactAndApproximateToggle);
-  quiz_assert(strcmp(lastCalculation->approximateOutputText(::Calculation::Calculation::NumberOfSignificantDigits::Maximal),"2.6366666666667") == 0);
+  quiz_assert(strcmp(lastCalculation->approximateOutputText(NumberOfSignificantDigits::Maximal),"2.6366666666667") == 0);
 
   store.deleteAll();
 }
 
-void assertCalculationIs(const char * input, ::Calculation::Calculation::DisplayOutput display, ::Calculation::Calculation::EqualSign sign, const char * exactOutput, const char * displayedApproximateOutput, const char * storedApproximateOutput, Context * context, CalculationStore * store) {
+void assertCalculationIs(const char * input, DisplayOutput display, EqualSign sign, const char * exactOutput, const char * displayedApproximateOutput, const char * storedApproximateOutput, Context * context, CalculationStore * store) {
-  store->push(input, context);
+  store->push(input, context, dummyHeight);
   Shared::ExpiringPointer<::Calculation::Calculation> lastCalculation = store->calculationAtIndex(0);
   quiz_assert(lastCalculation->displayOutput(context) == display);
-  if (sign != ::Calculation::Calculation::EqualSign::Unknown) {
+  if (sign != EqualSign::Unknown) {
     quiz_assert(lastCalculation->exactAndApproximateDisplayedOutputsAreEqual(context) == sign);
   }
   if (exactOutput) {
     quiz_assert_print_if_failure(strcmp(lastCalculation->exactOutputText(), exactOutput) == 0, input);
   }
   if (displayedApproximateOutput) {
-    quiz_assert_print_if_failure(strcmp(lastCalculation->approximateOutputText(::Calculation::Calculation::NumberOfSignificantDigits::UserDefined), displayedApproximateOutput) == 0, input);
+    quiz_assert_print_if_failure(strcmp(lastCalculation->approximateOutputText(NumberOfSignificantDigits::UserDefined), displayedApproximateOutput) == 0, input);
   }
   if (storedApproximateOutput) {
-    quiz_assert_print_if_failure(strcmp(lastCalculation->approximateOutputText(::Calculation::Calculation::NumberOfSignificantDigits::Maximal), storedApproximateOutput) == 0, input);
+    quiz_assert_print_if_failure(strcmp(lastCalculation->approximateOutputText(NumberOfSignificantDigits::Maximal), storedApproximateOutput) == 0, input);
   }
   store->deleteAll();
 }
 
 QUIZ_CASE(calculation_significant_digits) {
   Shared::GlobalContext globalContext;
-  CalculationStore store;
+  CalculationStore store(calculationBuffer,calculationBufferSize);
 
-  assertCalculationIs("123456789", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "123456789", "1.234568ᴇ8", "123456789", &globalContext, &store);
+  assertCalculationIs("123456789", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "123456789", "1.234568ᴇ8", "123456789", &globalContext, &store);
-  assertCalculationIs("1234567", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Equal, "1234567", "1234567", "1234567", &globalContext, &store);
+  assertCalculationIs("1234567", DisplayOutput::ApproximateOnly, EqualSign::Equal, "1234567", "1234567", "1234567", &globalContext, &store);
 
 }
 
 QUIZ_CASE(calculation_display_exact_approximate) {
   Shared::GlobalContext globalContext;
-  CalculationStore store;
+  CalculationStore store(calculationBuffer,calculationBufferSize);
 
-  assertCalculationIs("1/2", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Equal, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("1/2", DisplayOutput::ExactAndApproximate, EqualSign::Equal, nullptr, nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("1/3", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("1/3", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, nullptr, nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("1/0", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, "undef", "undef", "undef", &globalContext, &store);
+  assertCalculationIs("1/0", DisplayOutput::ExactOnly, EqualSign::Unknown, "undef", "undef", "undef", &globalContext, &store);
-  assertCalculationIs("2x-x", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, "undef", "undef", "undef", &globalContext, &store);
+  assertCalculationIs("2x-x", DisplayOutput::ExactOnly, EqualSign::Unknown, "x", "undef", "undef", &globalContext, &store);
-  assertCalculationIs("[[1,2,3]]", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("[[1,2,3]]", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("[[1,x,3]]", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "undef", "undef", &globalContext, &store);
+  assertCalculationIs("[[1,x,3]]", DisplayOutput::ExactAndApproximate, EqualSign::Unknown, nullptr, "[[1,undef,3]]", "[[1,undef,3]]", &globalContext, &store);
-  assertCalculationIs("28^7", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("28^7", DisplayOutput::ExactAndApproximate, EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("3+√(2)→a", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "√(2)+3", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("3+√(2)→a", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "√(2)+3", nullptr, nullptr, &globalContext, &store);
   Ion::Storage::sharedStorage()->recordNamed("a.exp").destroy();
-  assertCalculationIs("3+2→a", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Equal, "5", "5", "5", &globalContext, &store);
+  assertCalculationIs("3+2→a", DisplayOutput::ApproximateOnly, EqualSign::Equal, "5", "5", "5", &globalContext, &store);
   Ion::Storage::sharedStorage()->recordNamed("a.exp").destroy();
-  assertCalculationIs("3→a", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Equal, "3", "3", "3", &globalContext, &store);
+  assertCalculationIs("3→a", DisplayOutput::ApproximateOnly, EqualSign::Equal, "3", "3", "3", &globalContext, &store);
   Ion::Storage::sharedStorage()->recordNamed("a.exp").destroy();
-  assertCalculationIs("3+x→f(x)", ::Calculation::Calculation::DisplayOutput::ExactOnly, ::Calculation::Calculation::EqualSign::Unknown, "x+3", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("3+x→f(x)", DisplayOutput::ExactOnly, EqualSign::Unknown, "x+3", nullptr, nullptr, &globalContext, &store);
   Ion::Storage::sharedStorage()->recordNamed("f.func").destroy();
-  assertCalculationIs("1+1+random()", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("1+1+random()", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("1+1+round(1.343,2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "3.34", "3.34", &globalContext, &store);
+  assertCalculationIs("1+1+round(1.343,2)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "3.34", "3.34", &globalContext, &store);
-  assertCalculationIs("randint(2,2)+3", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, "5", "5", "5", &globalContext, &store);
+  assertCalculationIs("randint(2,2)+3", DisplayOutput::ApproximateOnly, EqualSign::Unknown, "5", "5", "5", &globalContext, &store);
-  assertCalculationIs("confidence(0.5,2)+3", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("confidence(0.5,2)+3", DisplayOutput::ExactOnly, EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("prediction(0.5,2)+3", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("prediction(0.5,2)+3", DisplayOutput::ExactOnly, EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("prediction95(0.5,2)+3", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("prediction95(0.5,2)+3", DisplayOutput::ExactOnly, EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
 
 }
 
 QUIZ_CASE(calculation_symbolic_computation) {
   Shared::GlobalContext globalContext;
-  CalculationStore store;
+  CalculationStore store(calculationBuffer,calculationBufferSize);
 
-  assertCalculationIs("x+x+1+3+√(π)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, "undef", "undef", "undef", &globalContext, &store);
+  assertCalculationIs("x+x+1+3+√(π)", DisplayOutput::ExactOnly, EqualSign::Unknown, "2×x+√(π)+4", "undef", "undef", &globalContext, &store);
-  assertCalculationIs("f(x)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, "undef", "undef", "undef", &globalContext, &store);
+  assertCalculationIs("f(x)", DisplayOutput::ExactOnly, EqualSign::Unknown, "f×x", "undef", "undef", &globalContext, &store);
-  assertCalculationIs("1+x→f(x)", ::Calculation::Calculation::DisplayOutput::ExactOnly, ::Calculation::Calculation::EqualSign::Unknown, "x+1", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("1+x→f(x)", DisplayOutput::ExactOnly, EqualSign::Unknown, "x+1", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("f(x)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, "undef", "undef", "undef", &globalContext, &store);
+  assertCalculationIs("f(x)", DisplayOutput::ExactOnly, EqualSign::Unknown, "x+1", "undef", "undef", &globalContext, &store);
-  assertCalculationIs("f(2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Equal, "3", "3", "3", &globalContext, &store);
+  assertCalculationIs("f(2)", DisplayOutput::ApproximateOnly, EqualSign::Equal, "3", "3", "3", &globalContext, &store);
-  assertCalculationIs("2→x", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Equal, "2", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("2→x", DisplayOutput::ApproximateOnly, EqualSign::Equal, "2", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("f(x)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Equal, "3", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("f(x)", DisplayOutput::ApproximateOnly, EqualSign::Equal, "3", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("x+x+1+3+√(π)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "√(π)+8", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("x+x+1+3+√(π)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "√(π)+8", nullptr, nullptr, &globalContext, &store);
 
   Ion::Storage::sharedStorage()->recordNamed("f.func").destroy();
   Ion::Storage::sharedStorage()->recordNamed("x.exp").destroy();
@@ -130,18 +155,18 @@ QUIZ_CASE(calculation_symbolic_computation) {
 
 QUIZ_CASE(calculation_symbolic_computation_and_parametered_expressions) {
   Shared::GlobalContext globalContext;
-  CalculationStore store;
+  CalculationStore store(calculationBuffer,calculationBufferSize);
 
-  assertCalculationIs("int((ℯ^(-x))-x^(0.5), x, 0, 3)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store); // Tests a bug with symbolic computation
+  assertCalculationIs("int((ℯ^(-x))-x^(0.5), x, 0, 3)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store); // Tests a bug with symbolic computation
-  assertCalculationIs("int(x,x,0,2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "2", "2", &globalContext, &store);
+  assertCalculationIs("int(x,x,0,2)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "2", "2", &globalContext, &store);
-  assertCalculationIs("sum(x,x,0,2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "3", "3", &globalContext, &store);
+  assertCalculationIs("sum(x,x,0,2)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "3", "3", &globalContext, &store);
-  assertCalculationIs("product(x,x,1,2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "2", "2", &globalContext, &store);
+  assertCalculationIs("product(x,x,1,2)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "2", "2", &globalContext, &store);
-  assertCalculationIs("diff(x^2,x,3)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "6", "6", &globalContext, &store);
+  assertCalculationIs("diff(x^2,x,3)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "6", "6", &globalContext, &store);
-  assertCalculationIs("2→x", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("2→x", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("int(x,x,0,2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "2", "2", &globalContext, &store);
+  assertCalculationIs("int(x,x,0,2)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "2", "2", &globalContext, &store);
-  assertCalculationIs("sum(x,x,0,2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "3", "3", &globalContext, &store);
+  assertCalculationIs("sum(x,x,0,2)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "3", "3", &globalContext, &store);
-  assertCalculationIs("product(x,x,1,2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "2", "2", &globalContext, &store);
+  assertCalculationIs("product(x,x,1,2)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "2", "2", &globalContext, &store);
-  assertCalculationIs("diff(x^2,x,3)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "6", "6", &globalContext, &store);
+  assertCalculationIs("diff(x^2,x,3)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "6", "6", &globalContext, &store);
 
   Ion::Storage::sharedStorage()->recordNamed("x.exp").destroy();
 }
@@ -149,34 +174,34 @@ QUIZ_CASE(calculation_symbolic_computation_and_parametered_expressions) {
 
 QUIZ_CASE(calculation_complex_format) {
   Shared::GlobalContext globalContext;
-  CalculationStore store;
+  CalculationStore store(calculationBuffer,calculationBufferSize);
 
   Poincare::Preferences::sharedPreferences()->setComplexFormat(Poincare::Preferences::ComplexFormat::Real);
-  assertCalculationIs("1+𝐢", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "1+𝐢", "1+𝐢", &globalContext, &store);
+  assertCalculationIs("1+𝐢", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "1+𝐢", "1+𝐢", &globalContext, &store);
-  assertCalculationIs("√(-1)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, "unreal", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("√(-1)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, "unreal", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("ln(-2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "unreal", "unreal", &globalContext, &store);
+  assertCalculationIs("ln(-2)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "unreal", "unreal", &globalContext, &store);
-  assertCalculationIs("√(-1)×√(-1)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "unreal", "unreal", &globalContext, &store);
+  assertCalculationIs("√(-1)×√(-1)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "unreal", "unreal", &globalContext, &store);
-  assertCalculationIs("(-8)^(1/3)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "-2", "-2", &globalContext, &store);
+  assertCalculationIs("(-8)^(1/3)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "-2", "-2", &globalContext, &store);
-  assertCalculationIs("(-8)^(2/3)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "4", "4", &globalContext, &store);
+  assertCalculationIs("(-8)^(2/3)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "4", "4", &globalContext, &store);
-  assertCalculationIs("(-2)^(1/4)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "unreal", "unreal", &globalContext, &store);
+  assertCalculationIs("(-2)^(1/4)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "unreal", "unreal", &globalContext, &store);
 
   Poincare::Preferences::sharedPreferences()->setComplexFormat(Poincare::Preferences::ComplexFormat::Cartesian);
-  assertCalculationIs("1+𝐢", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "1+𝐢", "1+𝐢", &globalContext, &store);
+  assertCalculationIs("1+𝐢", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "1+𝐢", "1+𝐢", &globalContext, &store);
-  assertCalculationIs("√(-1)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "𝐢", "𝐢", &globalContext, &store);
+  assertCalculationIs("√(-1)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "𝐢", "𝐢", &globalContext, &store);
-  assertCalculationIs("ln(-2)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "ln(-2)", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("ln(-2)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "ln(-2)", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("√(-1)×√(-1)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "-1", "-1", &globalContext, &store);
+  assertCalculationIs("√(-1)×√(-1)", DisplayOutput::ApproximateOnly, EqualSign::Unknown, nullptr, "-1", "-1", &globalContext, &store);
-  assertCalculationIs("(-8)^(1/3)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "1+√(3)×𝐢", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("(-8)^(1/3)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "1+√(3)×𝐢", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("(-8)^(2/3)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "-2+2×√(3)×𝐢", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("(-8)^(2/3)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "-2+2×√(3)×𝐢", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("(-2)^(1/4)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "root(8,4)/2+root(8,4)/2×𝐢", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("(-2)^(1/4)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "root(8,4)/2+root(8,4)/2×𝐢", nullptr, nullptr, &globalContext, &store);
 
   Poincare::Preferences::sharedPreferences()->setComplexFormat(Poincare::Preferences::ComplexFormat::Polar);
-  assertCalculationIs("1+𝐢", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "√(2)×ℯ^\u0012π/4×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("1+𝐢", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "√(2)×ℯ^\u0012π/4×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("√(-1)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "ℯ^\u0012π/2×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("√(-1)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "ℯ^\u0012π/2×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("ln(-2)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "ln(-2)", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("ln(-2)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "ln(-2)", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("√(-1)×√(-1)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "ℯ^\u00123.141593×𝐢\u0013", "ℯ^\u00123.1415926535898×𝐢\u0013", &globalContext, &store);
+  assertCalculationIs("√(-1)×√(-1)", DisplayOutput::ExactAndApproximate, EqualSign::Unknown, nullptr, "ℯ^\u00123.141593×𝐢\u0013", "ℯ^\u00123.1415926535898×𝐢\u0013", &globalContext, &store);
-  assertCalculationIs("(-8)^(1/3)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "2×ℯ^\u0012π/3×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("(-8)^(1/3)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "2×ℯ^\u0012π/3×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("(-8)^(2/3)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "4×ℯ^\u0012\u00122×π\u0013/3×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("(-8)^(2/3)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "4×ℯ^\u0012\u00122×π\u0013/3×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
-  assertCalculationIs("(-2)^(1/4)", ::Calculation::Calculation::DisplayOutput::ExactAndApproximate, ::Calculation::Calculation::EqualSign::Approximation, "root(2,4)×ℯ^\u0012π/4×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
+  assertCalculationIs("(-2)^(1/4)", DisplayOutput::ExactAndApproximate, EqualSign::Approximation, "root(2,4)×ℯ^\u0012π/4×𝐢\u0013", nullptr, nullptr, &globalContext, &store);
 
   Poincare::Preferences::sharedPreferences()->setComplexFormat(Poincare::Preferences::ComplexFormat::Cartesian);
 }

apps/clock_timer.cpp

@@ -0,0 +1,12 @@
+#include "clock_timer.h"
+#include "apps_container.h"
+
+ClockTimer::ClockTimer(AppsContainer * container) :
+  Timer(1),
+  m_container(container)
+{
+}
+
+bool ClockTimer::fire() {
+  return m_container->updateClock();
+}

apps/clock_timer.h

@@ -0,0 +1,16 @@
+#ifndef APPS_CLOCK_TIMER_H
+#define APPS_CLOCK_TIMER_H
+
+#include <escher.h>
+
+class AppsContainer;
+
+class ClockTimer : public Timer {
+public:
+  ClockTimer(AppsContainer * container);
+private:
+  bool fire() override;
+  AppsContainer * m_container;
+};
+
+#endif

apps/code/Makefile

@@ -1,6 +1,8 @@
 apps += Code::App
 app_headers += apps/code/app.h
 
+SFLAGS += -DHAS_CODE
+
 app_code_src = $(addprefix apps/code/,\
   app.cpp \
   console_controller.cpp \
@@ -11,42 +13,33 @@ app_code_src = $(addprefix apps/code/,\
   editor_view.cpp \
   helpers.cpp \
   menu_controller.cpp \
-  python_toolbox.cpp \
   python_text_area.cpp \
   sandbox_controller.cpp \
-  script.cpp \
   script_name_cell.cpp \
-  script_node_cell.cpp \
   script_parameter_controller.cpp \
+  toolbox_ion_keys.cpp \
+)
+
+app_code_test_src = $(addprefix apps/code/,\
+  python_toolbox.cpp \
+  script.cpp \
+  script_node_cell.cpp \
   script_store.cpp \
   script_template.cpp \
+  variable_box_empty_controller.cpp \
   variable_box_controller.cpp \
 )
 
-app_src += $(app_code_src)
+tests_src += $(addprefix apps/code/test/,\
-
+  variable_box_controller.cpp\
-i18n_files += $(addprefix apps/code/,\
+  toolbox_ion_keys_dummy.cpp \
-  base.de.i18n\
-  base.en.i18n\
-  base.es.i18n\
-  base.fr.i18n\
-  base.pt.i18n\
-  base.hu.i18n\
-  base.universal.i18n\
-  catalog.de.i18n\
-  catalog.en.i18n\
-  catalog.es.i18n\
-  catalog.fr.i18n\
-  catalog.pt.i18n\
-  catalog.hu.i18n\
-  catalog.universal.i18n\
-  toolbox.de.i18n\
-  toolbox.en.i18n\
-  toolbox.es.i18n\
-  toolbox.fr.i18n\
-  toolbox.pt.i18n\
-  toolbox.hu.i18n\
-  toolbox.universal.i18n\
 )
 
+app_code_src += $(app_code_test_src)
+apps_src += $(app_code_src)
+
+i18n_files += $(call i18n_with_universal_for,code/base)
+i18n_files += $(call i18n_with_universal_for,code/catalog)
+i18n_files += $(call i18n_with_universal_for,code/toolbox)
+
 $(eval $(call depends_on_image,apps/code/app.cpp,apps/code/code_icon.png))

apps/code/app.cpp

@@ -3,6 +3,13 @@
 #include <apps/i18n.h>
 #include "helpers.h"
 #include <ion/unicode/utf8_helper.h>
+#include <apps/apps_container.h>
+
+#if defined _FXCG || defined NSPIRE_NEWLIB
+extern "C" int calculator;
+extern "C" const int prizm_heap_size;
+extern "C" char prizm_heap[];
+#endif
 
 namespace Code {
 
@@ -14,8 +21,8 @@ I18n::Message App::Descriptor::upperName() {
   return I18n::Message::CodeAppCapital;
 }
 
-int App::Descriptor::examinationLevel() {
+App::Descriptor::ExaminationLevel App::Descriptor::examinationLevel() {
-  return App::Descriptor::BasicExaminationLevel;
+  return App::Descriptor::ExaminationLevel::Basic;
 }
 
 const Image * App::Descriptor::icon() {
@@ -25,6 +32,7 @@ const Image * App::Descriptor::icon() {
 App::Snapshot::Snapshot() :
 #if EPSILON_GETOPT
   m_lockOnConsole(false),
+  m_hasBeenWiped(false),
 #endif
   m_scriptStore()
 {
@@ -49,10 +57,12 @@ bool App::Snapshot::lockOnConsole() const {
 }
 
 void App::Snapshot::setOpt(const char * name, const char * value) {
-  if (strcmp(name, "wipe") == 0) {
-    m_scriptStore.deleteAllScripts();
-  }
   if (strcmp(name, "script") == 0) {
+    if (!m_hasBeenWiped) {
+      m_hasBeenWiped = true;
+      m_scriptStore.deleteAllScripts();
+    }
+  
     char * separator = const_cast<char *>(UTF8Helper::CodePointSearch(value, ':'));
     if (*separator == 0) {
       return;
@@ -67,7 +77,7 @@ void App::Snapshot::setOpt(const char * name, const char * value) {
     const char * scriptContent = separator;
     Code::ScriptTemplate script(scriptName, scriptContent);
     m_scriptStore.addScriptFromTemplate(&script);
-    m_scriptStore.scriptNamed(scriptName).toggleImportationStatus(); // set Importation Status to 1
+    ScriptStore::ScriptNamed(scriptName).toggleAutoimportationStatus(); // set Importation Status to 1
     return;
   }
   if (strcmp(name, "lock-on-console") == 0) {
@@ -86,16 +96,18 @@ App::App(Snapshot * snapshot) :
       , snapshot->lockOnConsole()
 #endif
       ),
-  m_listFooter(&m_codeStackViewController, &m_menuController, &m_menuController, ButtonRowController::Position::Bottom, ButtonRowController::Style::EmbossedGrey, ButtonRowController::Size::Large),
+  m_listFooter(&m_codeStackViewController, &m_menuController, &m_menuController, ButtonRowController::Position::Bottom, ButtonRowController::Style::EmbossedGray, ButtonRowController::Size::Large),
   m_menuController(&m_listFooter, this, snapshot->scriptStore(), &m_listFooter),
   m_codeStackViewController(&m_modalViewController, &m_listFooter),
   m_variableBoxController(snapshot->scriptStore())
 {
+  Clipboard::sharedClipboard()->enterPython();
 }
 
 App::~App() {
   assert(!m_consoleController.inputRunLoopActive());
   deinitPython();
+  Clipboard::sharedClipboard()->exitPython();
 }
 
 bool App::handleEvent(Ion::Events::Event event) {
@@ -124,6 +136,16 @@ VariableBoxController * App::variableBoxForInputEventHandler(InputEventHandler *
 }
 
 bool App::textInputDidReceiveEvent(InputEventHandler * textInput, Ion::Events::Event event) {
+  if (event == Ion::Events::XNT) {
+    int bufferSize = CodePoint::MaxCodePointCharLength + 1;
+    char buffer[bufferSize];
+    bool shouldRemoveLastCharacter = false;
+    CodePoint codePoint = AppsContainer::sharedAppsContainer()->XNT('x', &shouldRemoveLastCharacter);
+    UTF8Decoder::CodePointToChars(codePoint, buffer, bufferSize);
+    buffer[UTF8Decoder::CharSizeOfCodePoint(codePoint)] = 0;
+    textInput->handleEventWithText(const_cast<char *>(buffer), false, false, shouldRemoveLastCharacter);
+    return true;
+  }
   const char * pythonText = Helpers::PythonTextForEvent(event);
   if (pythonText != nullptr) {
     textInput->handleEventWithText(pythonText);
@@ -134,7 +156,17 @@ bool App::textInputDidReceiveEvent(InputEventHandler * textInput, Ion::Events::E
 
 void App::initPythonWithUser(const void * pythonUser) {
   if (!m_pythonUser) {
-    MicroPython::init(m_pythonHeap, m_pythonHeap + k_pythonHeapSize);
+#if defined _FXCG || defined NSPIRE_NEWLIB
+    if (calculator == 1) { // fxcg50
+      MicroPython::init( (void *) 0x8c200000, (void *)(0x8c200000+ 0x2e0000));
+    } else if (calculator >= 1 && calculator <=4 ) {
+      MicroPython::init( prizm_heap, prizm_heap+prizm_heap_size);
+    } else {
+#endif
+      MicroPython::init(m_pythonHeap, m_pythonHeap + k_pythonHeapSize);
+#if defined _FXCG || defined NSPIRE_NEWLIB
+    }
+#endif
   }
   m_pythonUser = pythonUser;
 }

apps/code/app.h

@@ -9,6 +9,7 @@
 #include "script_store.h"
 #include "python_toolbox.h"
 #include "variable_box_controller.h"
+#include "../shared/shared_app.h"
 
 namespace Code {
 
@@ -18,10 +19,10 @@ public:
   public:
     I18n::Message name() override;
     I18n::Message upperName() override;
-    int examinationLevel() override;
+    App::Descriptor::ExaminationLevel examinationLevel() override;
     const Image * icon() override;
   };
-  class Snapshot : public ::App::Snapshot {
+  class Snapshot : public SharedApp::Snapshot {
   public:
     Snapshot();
     App * unpack(Container * container) override;
@@ -34,6 +35,7 @@ public:
   private:
 #if EPSILON_GETOPT
     bool m_lockOnConsole;
+    bool m_hasBeenWiped;
 #endif
     ScriptStore m_scriptStore;
   };
@@ -51,6 +53,7 @@ public:
   }
   StackViewController * stackViewController() { return &m_codeStackViewController; }
   ConsoleController * consoleController() { return &m_consoleController; }
+  MenuController * menuController() { return &m_menuController; }
 
   /* Responder */
   bool handleEvent(Ion::Events::Event event) override;
@@ -72,7 +75,7 @@ public:
 
   VariableBoxController * variableBoxController() { return &m_variableBoxController; }
 
-  static constexpr int k_pythonHeapSize = 32768;
+  static constexpr int k_pythonHeapSize = 69500;
 
 private:
   /* Python delegate:

apps/code/base.de.i18n

@@ -1,9 +1,15 @@
-Console = "Interaktive Konsole"
 AddScript = "Skript hinzufügen"
-ScriptOptions = "Skriptoptionen"
+AllowedCharactersaz09 = "Erlaubte Zeichen: a-z, 0-9, _"
-ExecuteScript = "Skript ausführen"
+Autocomplete = "Autovervollständigung"
-AutoImportScript = "Automatischer Import in Konsole"
+AutoImportScript = "Automatischer Import in die Konsole"
+BuiltinsAndKeywords = "Native Funktionen & Schlüsselwörter"
+Console = "Interaktive Konsole"
 DeleteScript = "Skript löschen"
 DuplicateScript = "Skript duplizieren"
+ExecuteScript = "Skript ausführen"
 FunctionsAndVariables = "Funktionen und Variablen"
-AllowedCharactersaz09 = "Erlaubte Zeichen: a-z, 0-9, _"
+ImportedModulesAndScripts = "Importierte Module und Skripte"
+NoWordAvailableHere = "Hier ist kein Wort verfügbar."
+ScriptInProgress = "Aktuelles Skript"
+ScriptOptions = "Skriptoptionen"
+ScriptSize = "Skriptgröße"

apps/code/base.en.i18n

@@ -1,9 +1,15 @@
-Console = "Python shell"
 AddScript = "Add a script"
-ScriptOptions = "Script options"
+AllowedCharactersaz09 = "Allowed characters: a-z, 0-9, _"
-ExecuteScript = "Execute script"
+Autocomplete = "Autocomplete"
 AutoImportScript = "Auto import in shell"
+BuiltinsAndKeywords = "Builtins and keywords"
+Console = "Python shell"
 DeleteScript = "Delete script"
 DuplicateScript = "Duplicate script"
+ExecuteScript = "Execute script"
 FunctionsAndVariables = "Functions and variables"
-AllowedCharactersaz09 = "Allowed characters: a-z, 0-9, _"
+ImportedModulesAndScripts = "Imported modules and scripts"
+NoWordAvailableHere = "No word available here."
+ScriptInProgress = "Script in progress"
+ScriptOptions = "Script options"
+ScriptSize = "Script size"

apps/code/base.es.i18n

@@ -1,9 +1,15 @@
-Console = "Interprete de comandos"
 AddScript = "Agregar un archivo"
-ScriptOptions = "Opciones del archivo"
+AllowedCharactersaz09 = "Caracteres permitidos : a-z, 0-9, _"
-ExecuteScript = "Ejecutar el archivo"
+Autocomplete = "Autocompleción"
 AutoImportScript = "Importación auto en intérprete"
+BuiltinsAndKeywords = "Funciones nativas y palabras clave"
+Console = "Interprete de comandos"
 DeleteScript = "Eliminar el archivo"
 DuplicateScript = "Duplicar el guión"
+ExecuteScript = "Ejecutar el archivo"
 FunctionsAndVariables = "Funciones y variables"
-AllowedCharactersaz09 = "Caracteres permitidos : a-z, 0-9, _"
+ImportedModulesAndScripts = "Módulos y archivos importados"
+NoWordAvailableHere = "No hay ninguna palabra disponible aquí."
+ScriptInProgress = "Archivo en curso"
+ScriptOptions = "Opciones del archivo"
+ScriptSize = "Tamaño del script"

apps/code/base.fr.i18n

@@ -1,9 +1,15 @@
-Console = "Console d'exécution"
 AddScript = "Ajouter un script"
-ScriptOptions = "Options de script"
+AllowedCharactersaz09 = "Caractères autorisés : a-z, 0-9, _"
-ExecuteScript = "Exécuter le script"
+Autocomplete = "Auto-complétion"
 AutoImportScript = "Importation auto dans la console"
+BuiltinsAndKeywords = "Fonctions natives et mots-clés"
+Console = "Console d'exécution"
 DeleteScript = "Supprimer le script"
 DuplicateScript = "Dupliquer le script"
+ExecuteScript = "Exécuter le script"
 FunctionsAndVariables = "Fonctions et variables"
-AllowedCharactersaz09 = "Caractères autorisés : a-z, 0-9, _"
+ImportedModulesAndScripts = "Modules et scripts importés"
+NoWordAvailableHere = "Aucun mot disponible à cet endroit."
+ScriptInProgress = "Script en cours"
+ScriptOptions = "Options de script"
+ScriptSize = "Taille du script"

apps/code/base.hu.i18n

@@ -1,9 +1,15 @@
-Console = "Konzol"
+AddScript = "Script hozzáadása"
-AddScript = "Script hozzadáadása"
+AllowedCharactersaz09 = "Engedélyezett karakterek: a-z, 0-9, _"
-ScriptOptions = "Script beállítások"
+Autocomplete = "Önkiegészítés"
-ExecuteScript = "Script indítása"
 AutoImportScript = "Script automata importálása"
+BuiltinsAndKeywords = "Beépített fonkciók és szókincs"
+Console = "Konzol"
 DeleteScript = "Script törlése"
 DuplicateScript = "Script másolása"
-FunctionsAndVariables = "Függvények és változók"
+ExecuteScript = "Script indítása"
-AllowedCharactersaz09 = "Engedélyezett karakterek: a-z, 0-9, _"
+FunctionsAndVariables = "Fonktiók és változók"
+ImportedModulesAndScripts = "Importált scriptek és modulok"
+NoWordAvailableHere = "Nincs rendelkezésre álló szó."
+ScriptInProgress = "Script müködésben"
+ScriptOptions = "Script beállítások"
+ScriptSize = "Script mérete"

apps/code/base.it.i18n

@@ -0,0 +1,15 @@
+AddScript = "Aggiungere script"
+AllowedCharactersaz09 = "Caratteri consentiti : a-z, 0-9, _"
+Autocomplete = "Autocompletamento"
+AutoImportScript = "Auto importazione nella console"
+BuiltinsAndKeywords = "Funzioni native e parole chiave"
+Console = "Console d'esecuzione"
+DeleteScript = "Eliminare lo script"
+DuplicateScript = "Duplicate script"
+ExecuteScript = "Eseguire lo script"
+FunctionsAndVariables = "Funzioni e variabili"
+ImportedModulesAndScripts = "Moduli e scripts importati"
+NoWordAvailableHere = "Nessuna parola disponibile qui."
+ScriptInProgress = "Script in corso"
+ScriptOptions = "Opzioni dello script"
+ScriptSize = "Script Size"