RenderSVGModelObject.cpp [plain text]
#include "config.h"
#if ENABLE(SVG)
#include "RenderSVGModelObject.h"
#include "RenderSVGResource.h"
#include "SVGNames.h"
#include "SVGResourcesCache.h"
#include "SVGStyledElement.h"
namespace WebCore {
RenderSVGModelObject::RenderSVGModelObject(SVGStyledElement* node)
: RenderObject(node)
{
}
LayoutRect RenderSVGModelObject::clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer) const
{
return SVGRenderSupport::clippedOverflowRectForRepaint(this, repaintContainer);
}
void RenderSVGModelObject::computeFloatRectForRepaint(RenderBoxModelObject* repaintContainer, FloatRect& repaintRect, bool fixed) const
{
SVGRenderSupport::computeFloatRectForRepaint(this, repaintContainer, repaintRect, fixed);
}
void RenderSVGModelObject::mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool , bool , TransformState& transformState, ApplyContainerFlipOrNot, bool* wasFixed) const
{
SVGRenderSupport::mapLocalToContainer(this, repaintContainer, transformState, wasFixed);
}
const RenderObject* RenderSVGModelObject::pushMappingToContainer(const RenderBoxModelObject* ancestorToStopAt, RenderGeometryMap& geometryMap) const
{
return SVGRenderSupport::pushMappingToContainer(this, ancestorToStopAt, geometryMap);
}
LayoutRect RenderSVGModelObject::outlineBoundsForRepaint(RenderBoxModelObject* repaintContainer, LayoutPoint*) const
{
LayoutRect box = enclosingLayoutRect(repaintRectInLocalCoordinates());
adjustRectForOutlineAndShadow(box);
FloatQuad containerRelativeQuad = localToContainerQuad(FloatRect(box), repaintContainer);
return containerRelativeQuad.enclosingBoundingBox();
}
void RenderSVGModelObject::absoluteRects(Vector<IntRect>& rects, const LayoutPoint& accumulatedOffset) const
{
IntRect rect = enclosingIntRect(strokeBoundingBox());
rect.moveBy(roundedIntPoint(accumulatedOffset));
rects.append(rect);
}
void RenderSVGModelObject::absoluteQuads(Vector<FloatQuad>& quads, bool* wasFixed) const
{
quads.append(localToAbsoluteQuad(strokeBoundingBox(), false, wasFixed));
}
void RenderSVGModelObject::willBeDestroyed()
{
SVGResourcesCache::clientDestroyed(this);
RenderObject::willBeDestroyed();
}
void RenderSVGModelObject::styleWillChange(StyleDifference diff, const RenderStyle* newStyle)
{
if (diff == StyleDifferenceLayout) {
setNeedsBoundariesUpdate();
if (newStyle->hasTransform())
setNeedsTransformUpdate();
}
RenderObject::styleWillChange(diff, newStyle);
}
void RenderSVGModelObject::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
{
RenderObject::styleDidChange(diff, oldStyle);
SVGResourcesCache::clientStyleChanged(this, diff, style());
}
void RenderSVGModelObject::updateFromElement()
{
RenderObject::updateFromElement();
SVGResourcesCache::clientUpdatedFromElement(this, style());
}
bool RenderSVGModelObject::nodeAtPoint(const HitTestRequest&, HitTestResult&, const LayoutPoint&, const LayoutPoint&, HitTestAction)
{
ASSERT_NOT_REACHED();
return false;
}
static void getElementCTM(SVGElement* element, AffineTransform& transform)
{
ASSERT(element);
element->document()->updateLayoutIgnorePendingStylesheets();
SVGElement* stopAtElement = SVGLocatable::nearestViewportElement(element);
ASSERT(stopAtElement);
AffineTransform localTransform;
Node* current = element;
while (current && current->isSVGElement()) {
SVGElement* currentElement = static_cast<SVGElement*>(current);
if (currentElement->isStyled()) {
localTransform = currentElement->renderer()->localToParentTransform();
transform = localTransform.multiply(transform);
}
if (currentElement == stopAtElement)
break;
current = current->parentOrHostNode();
}
}
static bool intersectsAllowingEmpty(const FloatRect& r, const FloatRect& other)
{
if (r.isEmpty() && other.isEmpty())
return false;
if (r.isEmpty() && !other.isEmpty()) {
return (other.contains(r.x(), r.y()) && !other.contains(r.maxX(), r.maxY()))
|| (!other.contains(r.x(), r.y()) && other.contains(r.maxX(), r.maxY()));
}
if (other.isEmpty() && !r.isEmpty())
return intersectsAllowingEmpty(other, r);
return r.intersects(other);
}
static bool isGraphicsElement(RenderObject* renderer)
{
return renderer->isSVGShape() || renderer->isSVGText() || renderer->isSVGImage() || renderer->node()->hasTagName(SVGNames::useTag);
}
bool RenderSVGModelObject::checkIntersection(RenderObject* renderer, const FloatRect& rect)
{
if (!renderer || renderer->style()->pointerEvents() == PE_NONE)
return false;
if (!isGraphicsElement(renderer))
return false;
AffineTransform ctm;
getElementCTM(static_cast<SVGElement*>(renderer->node()), ctm);
return intersectsAllowingEmpty(rect, ctm.mapRect(renderer->repaintRectInLocalCoordinates()));
}
bool RenderSVGModelObject::checkEnclosure(RenderObject* renderer, const FloatRect& rect)
{
if (!renderer || renderer->style()->pointerEvents() == PE_NONE)
return false;
if (!isGraphicsElement(renderer))
return false;
AffineTransform ctm;
getElementCTM(static_cast<SVGElement*>(renderer->node()), ctm);
return rect.contains(ctm.mapRect(renderer->repaintRectInLocalCoordinates()));
}
}
#endif // ENABLE(SVG)