[apps/sequence] Temporary implementation of sequence toolbox

Change-Id: I59c703c4c50cd523d49af9a558a7fc3b0f360bc6

apps/sequence/sequence_toolbox.cpp

@@ -0,0 +1,93 @@
+#include "sequence_toolbox.h"
+#include "../../poincare/src/layout/baseline_relative_layout.h"
+#include "../../poincare/src/layout/string_layout.h"
+#include <assert.h>
+
+using namespace Poincare;
+
+namespace Sequence {
+
+SequenceToolbox::SequenceToolbox() :
+  MathToolbox(),
+  m_numberOfAddedCells(0)
+{
+}
+
+bool SequenceToolbox::handleEvent(Ion::Events::Event event) {
+  if (event == Ion::Events::OK && stackDepth() == 0) {
+    int selectedRow = m_selectableTableView.selectedRow();
+    if (selectedRow < m_numberOfAddedCells) {
+      return selectAddedCell(selectedRow);
+    }
+  }
+  return MathToolbox::handleEvent(event);
+}
+
+int SequenceToolbox::numberOfRows() {
+  if (stackDepth() == 0) {
+    return MathToolbox::numberOfRows()+m_numberOfAddedCells;
+  }
+  return MathToolbox::numberOfRows();
+}
+
+TableViewCell * SequenceToolbox::reusableCell(int index, int type) {
+  assert(type < 3);
+  assert(index >= 0);
+  assert(index < k_maxNumberOfDisplayedRows);
+  if (type == 2) {
+    return &m_addedCells[index];
+  }
+  return MathToolbox::reusableCell(index, type);
+}
+
+void SequenceToolbox::willDisplayCellForIndex(TableViewCell * cell, int index) {
+  if (typeAtLocation(0, index) == 2) {
+    ExpressionMenuListCell * myCell = (ExpressionMenuListCell *)cell;
+    myCell->setExpression(m_addedCellLayout[index]);
+    return;
+  } else {
+    MathToolbox::willDisplayCellForIndex(cell, index);
+  }
+}
+
+KDCoordinate SequenceToolbox::rowHeight(int j) {
+  if (typeAtLocation(0, j) == 2) {
+    return k_addedRowHeight;
+  }
+  return MathToolbox::rowHeight(j);
+}
+
+int SequenceToolbox::typeAtLocation(int i, int j) {
+  if (stackDepth() == 0 && j < m_numberOfAddedCells) {
+    return 2;
+  }
+  return MathToolbox::typeAtLocation(i,j);
+}
+
+void SequenceToolbox::addCells(int numberOfAddedCells, char ** cellNames, char ** cellSubscript) {
+  m_numberOfAddedCells = numberOfAddedCells;
+  for (int i = 0; i < numberOfAddedCells; i++) {
+    m_addedCellLayout[i] = new BaselineRelativeLayout(new StringLayout(cellNames[i], 1, KDText::FontSize::Large), new StringLayout(cellSubscript[i], strlen(cellSubscript[i]), KDText::FontSize::Small), BaselineRelativeLayout::Type::Subscript);
+  }
+}
+
+bool SequenceToolbox::selectAddedCell(int selectedRow){
+  char buffer[10];
+  BaselineRelativeLayout * layout = (BaselineRelativeLayout *)m_addedCellLayout[selectedRow];
+  StringLayout * nameLayout = (StringLayout *)layout->baseLayout();
+  StringLayout * subscriptLayout = (StringLayout *)layout->indiceLayout();
+  int currentChar = 0;
+  strlcpy(buffer, nameLayout->text(), strlen(nameLayout->text())+1);
+  currentChar += strlen(nameLayout->text());
+  buffer[currentChar++] = '(';
+  strlcpy(buffer+currentChar, subscriptLayout->text(), strlen(subscriptLayout->text())+1);
+  currentChar += strlen(subscriptLayout->text());
+  buffer[currentChar++] = ')';
+  buffer[currentChar] = 0;
+  sender()->insertTextAtLocation(buffer, sender()->cursorLocation());
+  sender()->setCursorLocation(sender()->cursorLocation()+currentChar);
+  app()->dismissModalViewController();
+  return true;
+}
+
+}