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build1/epsilon-master/apps/variable_box_leaf_cell.cpp 3.85 KB
6663b6c9   adorian   projet complet av...
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  #include "variable_box_leaf_cell.h"
  #include <assert.h>
  
  using namespace Poincare;
  
  VariableBoxLeafCell::VariableBoxLeafCell() :
    HighlightCell(),
    m_labelView(KDText::FontSize::Small, 0, 0.5, KDColorBlack, KDColorWhite),
    m_subtitleView(KDText::FontSize::Small, 0, 0.5, Palette::GreyDark, KDColorWhite),
    m_expressionView(1.0f, 0.5f),
    m_displayExpression(false)
  {
  }
  
  void VariableBoxLeafCell::displayExpression(bool displayExpression) {
    m_displayExpression = displayExpression;
  }
  
  int VariableBoxLeafCell::numberOfSubviews() const {
    if (m_displayExpression) {
      return 3;
    }
    return 2;
  }
  
  View * VariableBoxLeafCell::subviewAtIndex(int index) {
    if (index == 0) {
      return &m_labelView;
    }
    if (index == 1) {
      return &m_subtitleView;
    }
    assert(numberOfSubviews() == 3 && index == 2);
    return &m_expressionView;
  }
  
  void VariableBoxLeafCell::layoutSubviews() {
    KDCoordinate width = bounds().width();
    KDCoordinate height = bounds().height();
    KDSize labelSize = m_labelView.minimalSizeForOptimalDisplay();
    if (numberOfSubviews() == 3) {
      KDSize subtitleSize = m_subtitleView.minimalSizeForOptimalDisplay();
      m_labelView.setFrame(KDRect(k_separatorThickness+k_widthMargin, k_separatorThickness, labelSize.width(), height/2 - k_separatorThickness));
      m_subtitleView.setFrame(KDRect(k_separatorThickness+k_widthMargin, height/2, subtitleSize.width(), height/2-k_separatorThickness));
      m_subtitleView.setAlignment(0.0f, 0.5f);
      KDCoordinate maxTextSize = subtitleSize.width() > labelSize.width() ? subtitleSize.width() : labelSize.width();
      KDCoordinate expressionAvailableSize = width-k_separatorThickness-3*k_widthMargin-maxTextSize;
      m_expressionView.setFrame(KDRect(width - expressionAvailableSize - k_widthMargin, k_separatorThickness, expressionAvailableSize, height-2*k_separatorThickness));
      if (m_expressionView.minimalSizeForOptimalDisplay().width() > expressionAvailableSize) {
        m_expressionView.setAlignment(0.0f, 0.5f);
      } else {
        m_expressionView.setAlignment(1.0f, 0.5f);
      }
      return;
    }
    m_labelView.setFrame(KDRect(k_separatorThickness+k_widthMargin, k_separatorThickness, labelSize.width(), height-2*k_separatorThickness));
    m_subtitleView.setFrame(KDRect(k_separatorThickness+k_widthMargin+labelSize.width(), k_separatorThickness, width-k_separatorThickness-2*k_widthMargin-labelSize.width(), height-2*k_separatorThickness));
    m_subtitleView.setAlignment(1.0f, 0.5f);
    return;
  }
  
  void VariableBoxLeafCell::reloadCell() {
    HighlightCell::reloadCell();
    KDColor backgroundColor = isHighlighted()? Palette::Select : KDColorWhite;
    m_labelView.setBackgroundColor(backgroundColor);
    m_subtitleView.setBackgroundColor(backgroundColor);
    m_expressionView.setBackgroundColor(backgroundColor);
  }
  
  void VariableBoxLeafCell::setLabel(const char * text) {
    m_labelView.setText(text);
  }
  
  void VariableBoxLeafCell::setSubtitle(const char * text) {
    m_subtitleView.setText(text);
    layoutSubviews();
  }
  
  void VariableBoxLeafCell::setExpressionLayout(ExpressionLayout * expressionLayout) {
    m_expressionView.setExpressionLayout(expressionLayout);
  }
  
  void VariableBoxLeafCell::drawRect(KDContext * ctx, KDRect rect) const {
    KDCoordinate width = bounds().width();
    KDCoordinate height = bounds().height();
    KDColor backgroundColor = isHighlighted() ? Palette::Select : KDColorWhite;
    ctx->fillRect(KDRect(k_separatorThickness, k_separatorThickness, width-2*k_separatorThickness, height-2*k_separatorThickness), backgroundColor);
    ctx->fillRect(KDRect(0, height-k_separatorThickness, width, k_separatorThickness), Palette::GreyBright);
    ctx->fillRect(KDRect(0, 0, width, k_separatorThickness), Palette::GreyBright);
    ctx->fillRect(KDRect(0, 0, k_separatorThickness, height-k_separatorThickness), Palette::GreyBright);
    ctx->fillRect(KDRect(width-k_separatorThickness, 0, k_separatorThickness, height-k_separatorThickness), Palette::GreyBright);
   }