void RenderSVGShape::layout()
{
LayoutRepainter repainter(*this, checkForRepaintDuringLayout() && selfNeedsLayout());
SVGStyledTransformableElement* element = static_cast<SVGStyledTransformableElement*>(node());
bool updateCachedBoundariesInParents = false;
bool needsShapeUpdate = m_needsShapeUpdate;
if (needsShapeUpdate || m_needsBoundariesUpdate) {
setIsPaintingFallback(false);
m_path.clear();
createShape();
m_needsShapeUpdate = false;
updateCachedBoundariesInParents = true;
}
if (m_needsTransformUpdate) {
m_localTransform = element->animatedLocalTransform();
m_needsTransformUpdate = false;
updateCachedBoundariesInParents = true;
}
// Invalidate all resources of this client if our layout changed.
if (everHadLayout() && selfNeedsLayout()) {
SVGResourcesCache::clientLayoutChanged(this);
m_markerLayoutInfo.clear();
}
// At this point LayoutRepainter already grabbed the old bounds,
// recalculate them now so repaintAfterLayout() uses the new bounds.
if (needsShapeUpdate || m_needsBoundariesUpdate) {
updateCachedBoundaries();
m_needsBoundariesUpdate = false;
}
// If our bounds changed, notify the parents.
if (updateCachedBoundariesInParents)
RenderSVGModelObject::setNeedsBoundariesUpdate();
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
void RenderSVGRect::createShape()
{
// Before creating a new object we need to clear the cached bounding box
// to avoid using garbage.
m_boundingBox = FloatRect();
m_innerStrokeRect = FloatRect();
m_outerStrokeRect = FloatRect();
SVGRectElement* rect = static_cast<SVGRectElement*>(node());
ASSERT(rect);
bool nonScalingStroke = style()->svgStyle()->vectorEffect() == VE_NON_SCALING_STROKE;
// Fallback to RenderSVGShape if rect has rounded corners.
if (rect->hasAttribute(SVGNames::rxAttr) || rect->hasAttribute(SVGNames::ryAttr) || nonScalingStroke) {
RenderSVGShape::createShape();
setIsPaintingFallback(true);
return;
}
SVGLengthContext lengthContext(rect);
FloatSize boundingBoxSize(rect->width().value(lengthContext), rect->height().value(lengthContext));
if (boundingBoxSize.isEmpty())
return;
m_boundingBox = FloatRect(FloatPoint(rect->x().value(lengthContext), rect->y().value(lengthContext)), boundingBoxSize);
// To decide if the stroke contains a point we create two rects which represent the inner and
// the outer stroke borders. A stroke contains the point, if the point is between them.
m_innerStrokeRect = m_boundingBox;
m_outerStrokeRect = m_boundingBox;
if (style()->svgStyle()->hasStroke()) {
float strokeWidth = this->strokeWidth();
m_innerStrokeRect.inflate(-strokeWidth / 2);
m_outerStrokeRect.inflate(strokeWidth / 2);
}
}
