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build3/poincare/src/layout/condensed_sum_layout.cpp 2.25 KB
6663b6c9   adorian   projet complet av...
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  #include "condensed_sum_layout.h"
  #include <string.h>
  #include <assert.h>
  
  namespace Poincare {
  
  CondensedSumLayout::CondensedSumLayout(ExpressionLayout * baseLayout, ExpressionLayout * subscriptLayout, ExpressionLayout * superscriptLayout) :
    ExpressionLayout(),
    m_baseLayout(baseLayout),
    m_subscriptLayout(subscriptLayout),
    m_superscriptLayout(superscriptLayout)
  {
    m_baseLayout->setParent(this);
    m_subscriptLayout->setParent(this);
    if (m_superscriptLayout) {
      m_superscriptLayout->setParent(this);
    }
    KDSize superscriptSize = m_superscriptLayout == nullptr ? KDSizeZero : m_superscriptLayout->size();
    m_baseline = m_baseLayout->baseline() + max(0, superscriptSize.height() - m_baseLayout->size().height()/2);
  }
  
  CondensedSumLayout::~CondensedSumLayout() {
    delete m_baseLayout;
    delete m_subscriptLayout;
    if (m_superscriptLayout) {
      delete m_superscriptLayout;
    }
  }
  
  void CondensedSumLayout::render(KDContext * ctx, KDPoint p, KDColor expressionColor, KDColor backgroundColor) {
    // Nothing to draw
  }
  
  KDSize CondensedSumLayout::computeSize() {
    KDSize baseSize = m_baseLayout->size();
    KDSize subscriptSize = m_subscriptLayout->size();
    KDSize superscriptSize = m_superscriptLayout == nullptr ? KDSizeZero : m_superscriptLayout->size();
    return KDSize(baseSize.width() + max(subscriptSize.width(), superscriptSize.width()), max(baseSize.height()/2, subscriptSize.height()) + max(baseSize.height()/2, superscriptSize.height()));
  }
  
  ExpressionLayout * CondensedSumLayout::child(uint16_t index) {
    switch (index) {
      case 0:
        return m_baseLayout;
      case 1:
        return m_subscriptLayout;
      case 2:
        return m_superscriptLayout;
      default:
        return nullptr;
    }
  }
  
  KDPoint CondensedSumLayout::positionOfChild(ExpressionLayout * child) {
    KDCoordinate x = 0;
    KDCoordinate y = 0;
    KDSize baseSize = m_baseLayout->size();
    KDSize superscriptSize = m_superscriptLayout == nullptr ? KDSizeZero : m_superscriptLayout->size();
    if (child == m_baseLayout) {
      y = max(0, superscriptSize.height() - baseSize.height()/2);
    }
    if (child == m_subscriptLayout) {
      x = baseSize.width();
      y = max(baseSize.height()/2, superscriptSize.height());
    }
    if (child == m_superscriptLayout) {
      x = baseSize.width();
    }
    return KDPoint(x,y);
  }
  
  }