void RenderSVGRoot::mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool fixed , bool useTransforms, TransformState& transformState) const
{
ASSERT(!fixed); // We should have no fixed content in the SVG rendering tree.
ASSERT(useTransforms); // mapping a point through SVG w/o respecting trasnforms is useless.
// Transform to our border box and let RenderBox transform the rest of the way.
transformState.applyTransform(localToBorderBoxTransform());
RenderBox::mapLocalToContainer(repaintContainer, fixed, useTransforms, transformState);
}
const AffineTransform& RenderSVGRoot::localToParentTransform() const
{
IntSize parentToBorderBoxOffset = parentOriginToBorderBox();
AffineTransform borderBoxOriginToParentOrigin(localToBorderBoxTransform());
borderBoxOriginToParentOrigin.translateRight(parentToBorderBoxOffset.width(), parentToBorderBoxOffset.height());
m_localToParentTransform = borderBoxOriginToParentOrigin;
return m_localToParentTransform;
}
void RenderSVGRoot::computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& repaintRect, bool fixed)
{
// Apply our local transforms (except for x/y translation), then our shadow,
// and then call RenderBox's method to handle all the normal CSS Box model bits
repaintRect = localToBorderBoxTransform().mapRect(repaintRect);
// Apply initial viewport clip - not affected by overflow settings
repaintRect.intersect(enclosingIntRect(FloatRect(FloatPoint(), m_viewportSize)));
style()->svgStyle()->inflateForShadow(repaintRect);
RenderBox::computeRectForRepaint(repaintContainer, repaintRect, fixed);
}
void RenderSVGRoot::computeFloatRectForRepaint(RenderBoxModelObject* repaintContainer, FloatRect& repaintRect, bool fixed) const
{
// Apply our local transforms (except for x/y translation), then our shadow,
// and then call RenderBox's method to handle all the normal CSS Box model bits
repaintRect = localToBorderBoxTransform().mapRect(repaintRect);
// Apply initial viewport clip - not affected by overflow settings
repaintRect.intersect(borderBoxRect());
const SVGRenderStyle* svgStyle = style()->svgStyle();
if (const ShadowData* shadow = svgStyle->shadow())
shadow->adjustRectForShadow(repaintRect);
LayoutRect rect = enclosingIntRect(repaintRect);
RenderBox::computeRectForRepaint(repaintContainer, rect, fixed);
repaintRect = rect;
}
void RenderSVGRoot::paintReplaced(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
// An empty viewport disables rendering.
if (pixelSnappedBorderBoxRect().isEmpty())
return;
// Don't paint, if the context explicitly disabled it.
if (paintInfo.context->paintingDisabled())
return;
// An empty viewBox also disables rendering.
// (http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute)
if (svgSVGElement().hasEmptyViewBox())
return;
Page* page = frame().page();
// Don't paint if we don't have kids, except if we have filters we should paint those.
if (!firstChild()) {
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
if (!resources || !resources->filter()) {
if (page && paintInfo.phase == PaintPhaseForeground)
page->addRelevantUnpaintedObject(this, visualOverflowRect());
return;
}
}
if (page && paintInfo.phase == PaintPhaseForeground)
page->addRelevantRepaintedObject(this, visualOverflowRect());
// Make a copy of the PaintInfo because applyTransform will modify the damage rect.
PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
// Apply initial viewport clip - not affected by overflow handling
childPaintInfo.context->clip(pixelSnappedIntRect(overflowClipRect(paintOffset, paintInfo.renderRegion)));
// Convert from container offsets (html renderers) to a relative transform (svg renderers).
// Transform from our paint container's coordinate system to our local coords.
IntPoint adjustedPaintOffset = roundedIntPoint(paintOffset);
childPaintInfo.applyTransform(AffineTransform::translation(adjustedPaintOffset.x(), adjustedPaintOffset.y()) * localToBorderBoxTransform());
// SVGRenderingContext must be destroyed before we restore the childPaintInfo.context, because a filter may have
// changed the context and it is only reverted when the SVGRenderingContext destructor finishes applying the filter.
{
SVGRenderingContext renderingContext;
bool continueRendering = true;
if (childPaintInfo.phase == PaintPhaseForeground) {
renderingContext.prepareToRenderSVGContent(*this, childPaintInfo);
continueRendering = renderingContext.isRenderingPrepared();
}
if (continueRendering) {
childPaintInfo.updateSubtreePaintRootForChildren(this);
for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
// FIXME: Can this ever have RenderText children?
if (!child->isRenderElement())
continue;
toRenderElement(child)->paint(childPaintInfo, location());
}
}
}
childPaintInfo.context->restore();
}
const AffineTransform& RenderSVGRoot::localToParentTransform() const
{
IntSize parentToBorderBoxOffset = parentOriginToBorderBox();
m_localToParentTransform = AffineTransform::translation(parentToBorderBoxOffset.width(), parentToBorderBoxOffset.height()) * localToBorderBoxTransform();
return m_localToParentTransform;
}
void RenderSVGRoot::paintReplaced(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
// An empty viewport disables rendering.
if (pixelSnappedBorderBoxRect().isEmpty())
return;
// Don't paint, if the context explicitly disabled it.
if (paintInfo.context->paintingDisabled())
return;
// SVG outlines are painted during PaintPhaseForeground.
if (paintInfo.phase == PaintPhaseOutline || paintInfo.phase == PaintPhaseSelfOutline)
return;
// An empty viewBox also disables rendering.
// (http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute)
SVGSVGElement* svg = toSVGSVGElement(node());
ASSERT(svg);
if (svg->hasEmptyViewBox())
return;
// Don't paint if we don't have kids, except if we have filters we should paint those.
if (!firstChild()) {
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
if (!resources || !resources->filter())
return;
}
// Make a copy of the PaintInfo because applyTransform will modify the damage rect.
PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
// Apply initial viewport clip
if (shouldApplyViewportClip())
childPaintInfo.context->clip(pixelSnappedIntRect(overflowClipRect(paintOffset)));
// Convert from container offsets (html renderers) to a relative transform (svg renderers).
// Transform from our paint container's coordinate system to our local coords.
IntPoint adjustedPaintOffset = roundedIntPoint(paintOffset);
childPaintInfo.applyTransform(AffineTransform::translation(adjustedPaintOffset.x(), adjustedPaintOffset.y()) * localToBorderBoxTransform());
// SVGRenderingContext must be destroyed before we restore the childPaintInfo.context, because a filter may have
// changed the context and it is only reverted when the SVGRenderingContext destructor finishes applying the filter.
{
SVGRenderingContext renderingContext;
bool continueRendering = true;
if (childPaintInfo.phase == PaintPhaseForeground) {
renderingContext.prepareToRenderSVGContent(this, childPaintInfo);
continueRendering = renderingContext.isRenderingPrepared();
}
if (continueRendering)
RenderBox::paint(childPaintInfo, LayoutPoint());
}
childPaintInfo.context->restore();
}
