Upsilon/poincare/src/layout_node.cpp

#include <poincare/layout_node.h>
#include <poincare/allocation_failed_layout_node.h>
#include <poincare/layout_reference.h>

namespace Poincare {

// Rendering

void LayoutNode::draw(KDContext * ctx, KDPoint p, KDColor expressionColor, KDColor backgroundColor) {
  for (LayoutNode * l : children()) {
    l->draw(ctx, p, expressionColor, backgroundColor);
  }
  render(ctx, absoluteOrigin().translatedBy(p), expressionColor, backgroundColor);
}

KDPoint LayoutNode::origin() {
  LayoutNode * p = parent();
  if (p != nullptr) {
    return absoluteOrigin();
  } else {
    return KDPoint(absoluteOrigin().x() - p->absoluteOrigin().x(),
        absoluteOrigin().y() - p->absoluteOrigin().y());
  }
}

KDPoint LayoutNode::absoluteOrigin() {
  LayoutNode * p = parent();
  if (!m_positioned) {
    if (p != nullptr) {
      m_frame.setOrigin(p->absoluteOrigin().translatedBy(p->positionOfChild(this)));
    } else {
      m_frame.setOrigin(KDPointZero);
    }
    m_positioned = true;
  }
  return m_frame.origin();
}

KDSize LayoutNode::layoutSize() {
  if (!m_sized) {
    computeSize();
  }
  return m_frame.size();
}

KDCoordinate LayoutNode::baseline() {
  if (!m_baselined) {
    computeBaseline();
  }
  return m_baseline;
}

void LayoutNode::invalidAllSizesPositionsAndBaselines() {
  m_sized = false;
  m_positioned = false;
  m_baselined = false;
  for (LayoutNode * l : children()) {
    l->invalidAllSizesPositionsAndBaselines();
  }
}

// TreeNode

TreeNode * LayoutNode::FailedAllocationStaticNode() {
  return LayoutRef::FailedAllocationStaticNode();
}

}