C++ (Cpp) determineIfLayoutSizeChanged Exemples

Exemple #1

Fichier : RenderSVGContainer.cpp Projet : RobinWuDev/Qt

void RenderSVGContainer::layout()
{
    ASSERT(needsLayout());

    // Allow RenderSVGViewportContainer to update its viewport.
    calcViewport();

    // Allow RenderSVGTransformableContainer to update its transform.
    bool updatedTransform = calculateLocalTransform();

    // RenderSVGViewportContainer needs to set the 'layout size changed' flag.
    determineIfLayoutSizeChanged();

    SVGRenderSupport::layoutChildren(this, selfNeedsLayout() || SVGRenderSupport::filtersForceContainerLayout(this));

    // Invalidate all resources of this client if our layout changed.
    if (everHadLayout() && needsLayout())
        SVGResourcesCache::clientLayoutChanged(this);

    if (m_needsBoundariesUpdate || updatedTransform) {
        updateCachedBoundaries();
        m_needsBoundariesUpdate = false;

        // If our bounds changed, notify the parents.
        RenderSVGModelObject::setNeedsBoundariesUpdate();
    }

    clearNeedsLayout();
}

Exemple #2

Fichier : LayoutSVGContainer.cpp Projet : mirror/chromium

void LayoutSVGContainer::layout() {
  ASSERT(needsLayout());
  LayoutAnalyzer::Scope analyzer(*this);

  // Allow LayoutSVGViewportContainer to update its viewport.
  calcViewport();

  // Allow LayoutSVGTransformableContainer to update its transform.
  SVGTransformChange transformChange = calculateLocalTransform();
  m_didScreenScaleFactorChange =
      transformChange == SVGTransformChange::Full ||
      SVGLayoutSupport::screenScaleFactorChanged(parent());

  // LayoutSVGViewportContainer needs to set the 'layout size changed' flag.
  determineIfLayoutSizeChanged();

  // When hasRelativeLengths() is false, no descendants have relative lengths
  // (hence no one is interested in viewport size changes).
  bool layoutSizeChanged =
      element()->hasRelativeLengths() &&
      SVGLayoutSupport::layoutSizeOfNearestViewportChanged(this);

  SVGLayoutSupport::layoutChildren(
      firstChild(), false, m_didScreenScaleFactorChange, layoutSizeChanged);

  // Invalidate all resources of this client if our layout changed.
  if (everHadLayout() && needsLayout())
    SVGResourcesCache::clientLayoutChanged(this);

  if (m_needsBoundariesUpdate || transformChange != SVGTransformChange::None) {
    updateCachedBoundaries();
    m_needsBoundariesUpdate = false;

    // If our bounds changed, notify the parents.
    LayoutSVGModelObject::setNeedsBoundariesUpdate();
  }

  ASSERT(!m_needsBoundariesUpdate);
  clearNeedsLayout();
}

Exemple #3

Fichier : RenderSVGContainer.cpp Projet : alfintatorkace/osx-10.9-opensource

void RenderSVGContainer::layout()
{
    StackStats::LayoutCheckPoint layoutCheckPoint;
    ASSERT(needsLayout());

    // RenderSVGRoot disables layoutState for the SVG rendering tree.
    ASSERT(!view()->layoutStateEnabled());

    LayoutRepainter repainter(*this, SVGRenderSupport::checkForSVGRepaintDuringLayout(this) || selfWillPaint());

    // Allow RenderSVGViewportContainer to update its viewport.
    calcViewport();

    // Allow RenderSVGTransformableContainer to update its transform.
    bool updatedTransform = calculateLocalTransform();

    // RenderSVGViewportContainer needs to set the 'layout size changed' flag.
    determineIfLayoutSizeChanged();

    SVGRenderSupport::layoutChildren(this, selfNeedsLayout() || SVGRenderSupport::filtersForceContainerLayout(this));

    // Invalidate all resources of this client if our layout changed.
    if (everHadLayout() && needsLayout())
        SVGResourcesCache::clientLayoutChanged(this);

    // At this point LayoutRepainter already grabbed the old bounds,
    // recalculate them now so repaintAfterLayout() uses the new bounds.
    if (m_needsBoundariesUpdate || updatedTransform) {
        updateCachedBoundaries();
        m_needsBoundariesUpdate = false;
    
        // If our bounds changed, notify the parents.
        RenderSVGModelObject::setNeedsBoundariesUpdate();
    }

    repainter.repaintAfterLayout();
    setNeedsLayout(false);
}