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/*
Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
Copyright (C) 2006 Apple Computer, Inc.
Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
Copyright (C) 2007, 2008, 2009 Rob Buis <buis@kde.org>
Copyright (C) 2009, Google, Inc.
Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#if ENABLE(SVG)
#include "RenderSVGImage.h"
#include "Attr.h"
#include "FloatConversion.h"
#include "FloatQuad.h"
#include "GraphicsContext.h"
#include "PointerEventsHitRules.h"
#include "RenderLayer.h"
#include "RenderSVGResourceContainer.h"
#include "RenderSVGResourceFilter.h"
#include "SVGImageElement.h"
#include "SVGLength.h"
#include "SVGPreserveAspectRatio.h"
#include "SVGRenderSupport.h"
namespace WebCore {
RenderSVGImage::RenderSVGImage(SVGImageElement* impl)
: RenderImage(impl)
, m_needsTransformUpdate(true)
{
}
void RenderSVGImage::layout()
{
ASSERT(needsLayout());
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
SVGImageElement* image = static_cast<SVGImageElement*>(node());
if (m_needsTransformUpdate) {
m_localTransform = image->animatedLocalTransform();
m_needsTransformUpdate = false;
}
// minimum height
setHeight(errorOccurred() ? intrinsicSize().height() : 0);
calcWidth();
calcHeight();
m_localBounds = FloatRect(image->x().value(image), image->y().value(image), image->width().value(image), image->height().value(image));
m_cachedLocalRepaintRect = FloatRect();
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
void RenderSVGImage::paint(PaintInfo& paintInfo, int, int)
{
if (paintInfo.context->paintingDisabled() || style()->visibility() == HIDDEN)
return;
paintInfo.context->save();
paintInfo.context->concatCTM(localToParentTransform());
if (paintInfo.phase == PaintPhaseForeground) {
RenderSVGResourceFilter* filter = 0;
PaintInfo savedInfo(paintInfo);
if (prepareToRenderSVGContent(this, paintInfo, m_localBounds, filter)) {
FloatRect destRect = m_localBounds;
FloatRect srcRect(0, 0, image()->width(), image()->height());
SVGImageElement* imageElt = static_cast<SVGImageElement*>(node());
if (imageElt->preserveAspectRatio().align() != SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_NONE)
imageElt->preserveAspectRatio().transformRect(destRect, srcRect);
paintInfo.context->drawImage(image(), DeviceColorSpace, destRect, srcRect);
}
finishRenderSVGContent(this, paintInfo, filter, savedInfo.context);
}
if ((paintInfo.phase == PaintPhaseOutline || paintInfo.phase == PaintPhaseSelfOutline) && style()->outlineWidth())
paintOutline(paintInfo.context, 0, 0, width(), height());
paintInfo.context->restore();
}
void RenderSVGImage::destroy()
{
deregisterFromResources(this);
RenderImage::destroy();
}
bool RenderSVGImage::nodeAtFloatPoint(const HitTestRequest& request, HitTestResult& result, const FloatPoint& pointInParent, HitTestAction hitTestAction)
{
// We only draw in the forground phase, so we only hit-test then.
if (hitTestAction != HitTestForeground)
return false;
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_IMAGE_HITTESTING, request, style()->pointerEvents());
bool isVisible = (style()->visibility() == VISIBLE);
if (isVisible || !hitRules.requireVisible) {
FloatPoint localPoint = localToParentTransform().inverse().mapPoint(pointInParent);
if (!pointInClippingArea(this, localPoint))
return false;
if (hitRules.canHitFill) {
if (m_localBounds.contains(localPoint)) {
updateHitTestResult(result, roundedIntPoint(localPoint));
return true;
}
}
}
return false;
}
bool RenderSVGImage::nodeAtPoint(const HitTestRequest&, HitTestResult&, int, int, int, int, HitTestAction)
{
ASSERT_NOT_REACHED();
return false;
}
FloatRect RenderSVGImage::repaintRectInLocalCoordinates() const
{
// If we already have a cached repaint rect, return that
if (!m_cachedLocalRepaintRect.isEmpty())
return m_cachedLocalRepaintRect;
m_cachedLocalRepaintRect = m_localBounds;
intersectRepaintRectWithResources(this, m_cachedLocalRepaintRect);
return m_cachedLocalRepaintRect;
}
void RenderSVGImage::imageChanged(WrappedImagePtr image, const IntRect* rect)
{
RenderImage::imageChanged(image, rect);
#if ENABLE(FILTERS)
// The image resource defaults to nullImage until the resource arrives.
// This empty image may be cached by SVG filter effects which must be invalidated.
if (RenderSVGResourceFilter* filter = getRenderSVGResourceById<RenderSVGResourceFilter>(document(), style()->svgStyle()->filterResource()))
filter->invalidateClient(this);
#endif
repaint();
}
IntRect RenderSVGImage::clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer)
{
return SVGRenderBase::clippedOverflowRectForRepaint(this, repaintContainer);
}
void RenderSVGImage::computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& repaintRect, bool fixed)
{
SVGRenderBase::computeRectForRepaint(this, repaintContainer, repaintRect, fixed);
}
void RenderSVGImage::mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool fixed , bool useTransforms, TransformState& transformState) const
{
SVGRenderBase::mapLocalToContainer(this, repaintContainer, fixed, useTransforms, transformState);
}
void RenderSVGImage::addFocusRingRects(Vector<IntRect>& rects, int, int)
{
// this is called from paint() after the localTransform has already been applied
IntRect contentRect = enclosingIntRect(repaintRectInLocalCoordinates());
if (!contentRect.isEmpty())
rects.append(contentRect);
}
void RenderSVGImage::absoluteRects(Vector<IntRect>&, int, int)
{
// This code path should never be taken for SVG, as we're assuming useTransforms=true everywhere, absoluteQuads should be used.
ASSERT_NOT_REACHED();
}
void RenderSVGImage::absoluteQuads(Vector<FloatQuad>& quads)
{
quads.append(localToAbsoluteQuad(strokeBoundingBox()));
}
}
#endif // ENABLE(SVG)
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