[apps/probability] Create a class cell for the probability main menu

Change-Id: I101e35a64cab6c7d5ebdee1a91b9c37e54964497

apps/probability/Makefile

@@ -1,5 +1,6 @@
 app_objs += $(addprefix apps/probability/,\
   app.o\
+  cell.o\
   law.o\
   law/law_controller.o\
   parameters/parameters_controller.o\

apps/probability/cell.cpp

@@ -0,0 +1,66 @@
+#include "cell.h"
+#include <assert.h>
+
+namespace Probability {
+
+Cell::Cell() :
+  TableViewCell(),
+  m_labelView(PointerTextView(nullptr, 0, 0.5, KDColorBlack, Palette::CellBackgroundColor))
+{
+}
+
+int Cell::numberOfSubviews() const {
+  return 3;
+}
+
+View * Cell::subviewAtIndex(int index) {
+  assert(index >= 0 && index < 3);
+  if (index == 0) {
+    return &m_labelView;
+  }
+  if (index == 1) {
+    return &m_iconView;
+  }
+  return &m_chevronView;
+}
+
+void Cell::layoutSubviews() {
+  KDCoordinate width = bounds().width();
+  KDCoordinate height = bounds().height();
+  m_labelView.setFrame(KDRect(1+k_iconWidth+2*k_iconMargin, 1, width-2-k_iconWidth-2*k_iconMargin - k_chevronWidth, height-2));
+  m_iconView.setFrame(KDRect(1+k_iconMargin, (height - k_iconHeight)/2, k_iconWidth, k_iconHeight));
+  m_chevronView.setFrame(KDRect(width-1-k_chevronWidth, 1, k_chevronWidth, height - 2));
+}
+
+void Cell::reloadCell() {
+  TableViewCell::reloadCell();
+  KDColor backgroundColor = isHighlighted()? Palette::FocusCellBackgroundColor : Palette::CellBackgroundColor;
+  m_labelView.setBackgroundColor(backgroundColor);
+  m_chevronView.setHighlighted(isHighlighted());
+  if (isHighlighted()) {
+    m_iconView.setImage(m_focusedIcon);
+  } else {
+    m_iconView.setImage(m_icon);
+  }
+}
+
+void Cell::setLabel(const char * text) {
+  m_labelView.setText(text);
+}
+
+void Cell::setImage(const Image * image, const Image * focusedImage) {
+  m_icon = image;
+  m_focusedIcon = focusedImage;
+}
+
+void Cell::drawRect(KDContext * ctx, KDRect rect) const {
+  KDCoordinate width = bounds().width();
+  KDCoordinate height = bounds().height();
+  KDColor backgroundColor = isHighlighted() ? Palette::FocusCellBackgroundColor : Palette::CellBackgroundColor;
+  ctx->fillRect(KDRect(1, 1, width-2, height-1), backgroundColor);
+  ctx->fillRect(KDRect(0, 0, width, 1), Palette::LineColor);
+  ctx->fillRect(KDRect(0, 1, 1, height-1), Palette::LineColor);
+  ctx->fillRect(KDRect(width-1, 1, 1, height-1), Palette::LineColor);
+ }
+
+}

apps/probability/cell.h

@@ -0,0 +1,32 @@
+#ifndef APPS_PROBABILITY_CELL_H
+#define APPS_PROBABILITY_CELL_H
+
+#include <escher.h>
+
+namespace Probability {
+
+class Cell : public TableViewCell {
+public:
+  Cell();
+  void reloadCell() override;
+  void setLabel(const char * text);
+  void setImage(const Image * image, const Image * focusedImage);
+  void drawRect(KDContext * ctx, KDRect rect) const override;
+private:
+  constexpr static KDCoordinate k_iconWidth = 35;
+  constexpr static KDCoordinate k_iconHeight = 19;
+  constexpr static KDCoordinate k_iconMargin = 10;
+  constexpr static KDCoordinate k_chevronWidth = 20+8;
+  int numberOfSubviews() const override;
+  View * subviewAtIndex(int index) override;
+  void layoutSubviews() override;
+  PointerTextView m_labelView;
+  ImageView m_iconView;
+  const Image * m_icon;
+  const Image * m_focusedIcon;
+  ChevronView m_chevronView;
+};
+
+}
+
+#endif