[apps/graph] Hideable cells in values controller

apps/graph/values/values_controller.cpp

@@ -32,8 +32,36 @@ ValuesController::ValuesController(Responder * parentResponder, InputEventHandle
 }
 
 void ValuesController::willDisplayCellAtLocation(HighlightCell * cell, int i, int j) {
-  Shared::ValuesController::willDisplayCellAtLocation(cell, i, j);
+  // Handle hidden cells
   int typeAtLoc = typeAtLocation(i,j);
+  if (typeAtLoc == k_editableValueCellType) {
+    StoreCell * storeCell = (StoreCell *)cell;
+    storeCell->setSeparatorLeft(i > 0);
+  }
+
+  const int numberOfElementsInCol = numberOfElementsInColumn(i);
+  if (j == numberOfElementsInCol+1) {
+    if (typeAtLoc == k_notEditableValueCellType) {
+      Shared::HideableEvenOddBufferTextCell * myCell = static_cast<Shared::HideableEvenOddBufferTextCell *>(cell);
+      myCell->setText("");
+    } else if (typeAtLoc == k_editableValueCellType) {
+      StoreCell * myCell = static_cast<StoreCell *>(cell);
+      myCell->editableTextCell()->textField()->setText("");
+    }
+    return;
+  }
+  if (j > numberOfElementsInCol + 1) {
+    if (typeAtLoc == k_notEditableValueCellType) {
+      Shared::HideableEvenOddBufferTextCell * myCell = static_cast<Shared::HideableEvenOddBufferTextCell *>(cell);
+      myCell->setHide(true);
+    } else if (typeAtLoc == k_editableValueCellType) {
+      StoreCell * myCell = static_cast<StoreCell *>(cell);
+      myCell->setHide(true);
+    }
+    return;
+  }
+
+  Shared::ValuesController::willDisplayCellAtLocation(cell, i, j);
   if (typeAtLoc == k_abscissaTitleCellType) {
     AbscissaTitleCell * myTitleCell = (AbscissaTitleCell *)cell;
     Ion::Storage::Record record = recordAtColumn(i+1);
@@ -58,10 +86,7 @@ void ValuesController::willDisplayCellAtLocation(HighlightCell * cell, int i, in
     myFunctionCell->setColor(function->color());
     return;
   }
-  if (typeAtLoc == k_editableValueCellType) {
-    StoreCell * storeCell = (StoreCell *)cell;
-    storeCell->setSeparatorLeft(i > 0);
-  }
+
 }
 
 int ValuesController::typeAtLocation(int i, int j) {

apps/graph/values/values_controller.h

@@ -3,6 +3,7 @@
 
 #include "../cartesian_function_store.h"
 #include "../../shared/buffer_function_title_cell.h"
+#include "../../shared/hideable_even_odd_buffer_text_cell.h"
 #include "../../shared/values_controller.h"
 #include "../../shared/interval_parameter_controller.h"
 #include "../../shared/store_cell.h"
@@ -54,7 +55,7 @@ private:
 
   int m_numberOfColumnsForType[Shared::CartesianFunction::k_numberOfPlotTypes];
   Shared::BufferFunctionTitleCell m_functionTitleCells[k_maxNumberOfFunctions];
-  EvenOddBufferTextCell m_floatCells[k_maxNumberOfCells];
+  Shared::HideableEvenOddBufferTextCell m_floatCells[k_maxNumberOfCells];
   AbscissaTitleCell m_abscissaTitleCells[Shared::CartesianFunction::k_numberOfPlotTypes];
   Shared::StoreCell m_abscissaCells[k_maxNumberOfAbscissaCells];
   FunctionParameterController m_functionParameterController;

apps/shared/Makefile

@@ -37,6 +37,7 @@ app_shared_src = $(addprefix apps/shared/,\
   function_store.cpp \
   function_title_cell.cpp \
   go_to_parameter_controller.cpp \
+  hideable_even_odd_buffer_text_cell.cpp \
   hideable_even_odd_cell.cpp \
   hideable_even_odd_editable_text_cell.cpp \
   initialisation_parameter_controller.cpp \

apps/shared/hideable_even_odd_buffer_text_cell.cpp

@@ -0,0 +1,20 @@
+#include "hideable_even_odd_buffer_text_cell.h"
+
+namespace Shared {
+
+KDColor HideableEvenOddBufferTextCell::backgroundColor() const {
+  if (hidden()) {
+    return hideColor();
+  }
+  return EvenOddBufferTextCell::backgroundColor();
+}
+
+void HideableEvenOddBufferTextCell::setHide(bool hide) {
+  if (hidden() != hide) {
+    Hideable::setHide(hide);
+    m_bufferTextView.setBackgroundColor(backgroundColor());
+    reloadCell();
+  }
+}
+
+}

apps/shared/hideable_even_odd_buffer_text_cell.h

@@ -0,0 +1,22 @@
+#ifndef APPS_SHARED_HIDEABLE_EVEN_ODD_BUFFER_TEXT_CELL_H
+#define APPS_SHARED_HIDEABLE_EVEN_ODD_BUFFER_TEXT_CELL_H
+
+#include <escher/even_odd_buffer_text_cell.h>
+#include <escher/palette.h>
+#include "hideable.h"
+
+namespace Shared {
+
+class HideableEvenOddBufferTextCell : public EvenOddBufferTextCell, public Hideable {
+public:
+  HideableEvenOddBufferTextCell() :
+    EvenOddBufferTextCell(),
+    Hideable()
+  {}
+  KDColor backgroundColor() const override;
+  void setHide(bool hide) override;
+};
+
+}
+
+#endif

apps/shared/interval.cpp

@@ -15,11 +15,12 @@ int Interval::numberOfElements() {
 }
 
 void Interval::deleteElementAtIndex(int index) {
-  m_numberOfElements--;
-  for (int k = index; k < m_numberOfElements; k++) {
+  assert(!m_needCompute);
+  assert(m_numberOfElements > 0);
+  for (int k = index; k < m_numberOfElements-1; k++) {
     m_intervalBuffer[k] = m_intervalBuffer[k+1];
   }
-  m_intervalBuffer[m_numberOfElements] = 0.0f;
+  m_numberOfElements--;
 }
 
 double Interval::element(int i) {
@@ -70,7 +71,7 @@ void Interval::computeElements() {
   if (!m_needCompute) {
     return;
   }
-  if ( m_start > m_end) {
+  if (m_start > m_end) {
     m_numberOfElements = 0;
   } else {
     m_numberOfElements = m_step > 0 ? 1 + (m_end - m_start)/m_step : k_maxNumberOfElements;

apps/shared/values_controller.h

@@ -55,6 +55,7 @@ protected:
   virtual void updateNumberOfColumns();
   virtual FunctionStore * functionStore() const;
   virtual Ion::Storage::Record recordAtColumn(int i);
+  int numberOfElementsInColumn(int columnIndex) override;
   int m_numberOfColumns;
   bool m_numberOfColumnsNeedUpdate;
 private:
@@ -62,7 +63,6 @@ private:
   SelectableTableView * selectableTableView() override { return &m_selectableTableView; }
   bool cellAtLocationIsEditable(int columnIndex, int rowIndex) override;
   double dataAtLocation(int columnIndex, int rowIndex) override;
-  int numberOfElementsInColumn(int columnIndex) override;
   virtual Interval * intervalAtColumn(int columnIndex) = 0;
   int maxNumberOfElements() const override {
     return Interval::k_maxNumberOfElements;