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-rw-r--r--src/3rdparty/webkit/WebCore/rendering/RenderSVGRoot.cpp305
1 files changed, 138 insertions, 167 deletions
diff --git a/src/3rdparty/webkit/WebCore/rendering/RenderSVGRoot.cpp b/src/3rdparty/webkit/WebCore/rendering/RenderSVGRoot.cpp
index 457ac02..80c29dd 100644
--- a/src/3rdparty/webkit/WebCore/rendering/RenderSVGRoot.cpp
+++ b/src/3rdparty/webkit/WebCore/rendering/RenderSVGRoot.cpp
@@ -2,8 +2,7 @@
Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005, 2007, 2008, 2009 Rob Buis <buis@kde.org>
2007 Eric Seidel <eric@webkit.org>
-
- This file is part of the KDE project
+ 2009 Google, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
@@ -27,24 +26,24 @@
#include "RenderSVGRoot.h"
#include "GraphicsContext.h"
-#include "RenderPath.h"
#include "RenderSVGContainer.h"
#include "RenderView.h"
#include "SVGLength.h"
#include "SVGRenderSupport.h"
-#include "SVGResourceClipper.h"
-#include "SVGResourceFilter.h"
-#include "SVGResourceMasker.h"
#include "SVGSVGElement.h"
#include "SVGStyledElement.h"
-#include "SVGURIReference.h"
+#include "TransformState.h"
+
+#if ENABLE(FILTERS)
+#include "SVGResourceFilter.h"
+#endif
using namespace std;
namespace WebCore {
RenderSVGRoot::RenderSVGRoot(SVGStyledElement* node)
- : RenderContainer(node)
+ : RenderBox(node)
{
setReplaced(true);
}
@@ -86,69 +85,43 @@ void RenderSVGRoot::layout()
{
ASSERT(needsLayout());
- calcViewport();
-
// Arbitrary affine transforms are incompatible with LayoutState.
view()->disableLayoutState();
- IntRect oldBounds = m_absoluteBounds;
- IntRect oldOutlineBox;
- bool checkForRepaint = checkForRepaintDuringLayout() && selfNeedsLayout();
- if (checkForRepaint)
- oldOutlineBox = absoluteOutlineBounds();
+ LayoutRepainter repainter(*this, checkForRepaintDuringLayout() && selfNeedsLayout());
calcWidth();
calcHeight();
- m_absoluteBounds = absoluteClippedOverflowRect();
- SVGSVGElement* svg = static_cast<SVGSVGElement*>(element());
- m_width = static_cast<int>(m_width * svg->currentScale());
- m_height = static_cast<int>(m_height * svg->currentScale());
+ SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
+ setWidth(static_cast<int>(width() * svg->currentScale()));
+ setHeight(static_cast<int>(height() * svg->currentScale()));
+
+ calcViewport();
for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
if (selfNeedsLayout()) // either bounds or transform changed, force kids to relayout
- child->setNeedsLayout(true);
+ child->setNeedsLayout(true, false);
child->layoutIfNeeded();
ASSERT(!child->needsLayout());
}
- if (checkForRepaint)
- repaintAfterLayoutIfNeeded(oldBounds, oldOutlineBox);
+ repainter.repaintAfterLayout();
view()->enableLayoutState();
setNeedsLayout(false);
}
-void RenderSVGRoot::applyContentTransforms(PaintInfo& paintInfo, int parentX, int parentY)
+bool RenderSVGRoot::selfWillPaint() const
{
- // Translate from parent offsets (html renderers) to a relative transform (svg renderers)
- IntPoint origin;
- origin.move(parentX, parentY);
- origin.move(m_x, m_y);
- origin.move(borderLeft(), borderTop());
- origin.move(paddingLeft(), paddingTop());
-
- if (origin.x() || origin.y()) {
- paintInfo.context->concatCTM(TransformationMatrix().translate(origin.x(), origin.y()));
- paintInfo.rect.move(-origin.x(), -origin.y());
- }
-
- // Respect scroll offset caused by html parents
- TransformationMatrix ctm = RenderContainer::absoluteTransform();
- paintInfo.rect.move(static_cast<int>(ctm.e()), static_cast<int>(ctm.f()));
-
- SVGSVGElement* svg = static_cast<SVGSVGElement*>(element());
- paintInfo.context->concatCTM(TransformationMatrix().scale(svg->currentScale()));
-
- if (!viewport().isEmpty()) {
- if (style()->overflowX() != OVISIBLE)
- paintInfo.context->clip(enclosingIntRect(viewport())); // FIXME: Eventually we'll want float-precision clipping
-
- paintInfo.context->concatCTM(TransformationMatrix().translate(viewport().x(), viewport().y()));
- }
-
- paintInfo.context->concatCTM(TransformationMatrix().translate(svg->currentTranslate().x(), svg->currentTranslate().y()));
+#if ENABLE(FILTERS)
+ const SVGRenderStyle* svgStyle = style()->svgStyle();
+ SVGResourceFilter* filter = getFilterById(document(), svgStyle->filter());
+ if (filter)
+ return true;
+#endif
+ return false;
}
void RenderSVGRoot::paint(PaintInfo& paintInfo, int parentX, int parentY)
@@ -156,141 +129,131 @@ void RenderSVGRoot::paint(PaintInfo& paintInfo, int parentX, int parentY)
if (paintInfo.context->paintingDisabled())
return;
- calcViewport();
+ IntPoint parentOriginInContainer(parentX, parentY);
+ IntPoint borderBoxOriginInContainer = parentOriginInContainer + IntSize(x(), y());
+
+ if (hasBoxDecorations() && (paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection))
+ paintBoxDecorations(paintInfo, borderBoxOriginInContainer.x(), borderBoxOriginInContainer.y());
- SVGSVGElement* svg = static_cast<SVGSVGElement*>(element());
- // A value of zero disables rendering of the element.
- if (viewport().width() <= 0. || viewport().height() <= 0.)
+ // An empty viewport disables rendering. FIXME: Should we still render filters?
+ if (viewportSize().isEmpty())
return;
- // This should only exist for <svg> renderers
- if (hasBoxDecorations() && (paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection))
- paintBoxDecorations(paintInfo, m_x + parentX, m_y + parentY);
-
- if (!firstChild()) {
-#if ENABLE(SVG_FILTERS)
- // Spec: groups w/o children still may render filter content.
- const SVGRenderStyle* svgStyle = style()->svgStyle();
- SVGResourceFilter* filter = getFilterById(document(), svgStyle->filter());
- if (!filter)
-#endif
- return;
- }
+ // Don't paint if we don't have kids, except if we have filters we should paint those.
+ if (!firstChild() && !selfWillPaint())
+ return;
+ // Make a copy of the PaintInfo because applyTransformToPaintInfo will modify the damage rect.
RenderObject::PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
-
- applyContentTransforms(childPaintInfo, parentX, parentY);
- SVGResourceFilter* filter = 0;
+ // SVG does not support independent x/y clipping
+ if (style()->overflowX() != OVISIBLE)
+ childPaintInfo.context->clip(overflowClipRect(borderBoxOriginInContainer.x(), borderBoxOriginInContainer.y()));
+
+ // Convert from container offsets (html renderers) to a relative transform (svg renderers).
+ // Transform from our paint container's coordinate system to our local coords.
+ applyTransformToPaintInfo(childPaintInfo, localToRepaintContainerTransform(parentOriginInContainer));
- FloatRect boundingBox = relativeBBox(true);
+ SVGResourceFilter* filter = 0;
+ FloatRect boundingBox = repaintRectInLocalCoordinates();
if (childPaintInfo.phase == PaintPhaseForeground)
- prepareToRenderSVGContent(this, childPaintInfo, boundingBox, filter);
+ prepareToRenderSVGContent(this, childPaintInfo, boundingBox, filter);
- childPaintInfo.context->concatCTM(svg->viewBoxToViewTransform(width(), height()));
- RenderContainer::paint(childPaintInfo, 0, 0);
+ RenderBox::paint(childPaintInfo, 0, 0);
if (childPaintInfo.phase == PaintPhaseForeground)
- finishRenderSVGContent(this, childPaintInfo, boundingBox, filter, paintInfo.context);
+ finishRenderSVGContent(this, childPaintInfo, filter, paintInfo.context);
childPaintInfo.context->restore();
-
- if ((childPaintInfo.phase == PaintPhaseOutline || childPaintInfo.phase == PaintPhaseSelfOutline) && style()->outlineWidth() && style()->visibility() == VISIBLE)
- paintOutline(childPaintInfo.context, m_absoluteBounds.x(), m_absoluteBounds.y(), m_absoluteBounds.width(), m_absoluteBounds.height(), style());
+
+ if ((paintInfo.phase == PaintPhaseOutline || paintInfo.phase == PaintPhaseSelfOutline) && style()->outlineWidth() && style()->visibility() == VISIBLE)
+ paintOutline(paintInfo.context, borderBoxOriginInContainer.x(), borderBoxOriginInContainer.y(), width(), height(), style());
}
-FloatRect RenderSVGRoot::viewport() const
+const FloatSize& RenderSVGRoot::viewportSize() const
{
- return m_viewport;
+ return m_viewportSize;
}
void RenderSVGRoot::calcViewport()
{
- SVGElement* svgelem = static_cast<SVGElement*>(element());
- if (svgelem->hasTagName(SVGNames::svgTag)) {
- SVGSVGElement* svg = static_cast<SVGSVGElement*>(element());
+ SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
- if (!selfNeedsLayout() && !svg->hasRelativeValues())
- return;
+ if (!selfNeedsLayout() && !svg->hasRelativeValues())
+ return;
- float w, h;
+ if (!svg->hasSetContainerSize()) {
+ // In the normal case of <svg> being stand-alone or in a CSSBoxModel object we use
+ // RenderBox::width()/height() (which pulls data from RenderStyle)
+ m_viewportSize = FloatSize(width(), height());
+ } else {
+ // In the SVGImage case grab the SVGLength values off of SVGSVGElement and use
+ // the special relativeWidthValue accessors which respect the specified containerSize
SVGLength width = svg->width();
- if (width.unitType() == LengthTypePercentage && svg->hasSetContainerSize())
- w = svg->relativeWidthValue();
- else
- w = width.value(svg);
-
SVGLength height = svg->height();
- if (height.unitType() == LengthTypePercentage && svg->hasSetContainerSize())
- h = svg->relativeHeightValue();
- else
- h = height.value(svg);
-
- m_viewport = FloatRect(0, 0, w, h);
+ float viewportWidth = (width.unitType() == LengthTypePercentage) ? svg->relativeWidthValue() : width.value(svg);
+ float viewportHeight = (height.unitType() == LengthTypePercentage) ? svg->relativeHeightValue() : height.value(svg);
+ m_viewportSize = FloatSize(viewportWidth, viewportHeight);
}
}
-IntRect RenderSVGRoot::absoluteClippedOverflowRect()
+// RenderBox methods will expect coordinates w/o any transforms in coordinates
+// relative to our borderBox origin. This method gives us exactly that.
+TransformationMatrix RenderSVGRoot::localToBorderBoxTransform() const
{
- IntRect repaintRect;
-
- for (RenderObject* current = firstChild(); current != 0; current = current->nextSibling())
- repaintRect.unite(current->absoluteClippedOverflowRect());
-
-#if ENABLE(SVG_FILTERS)
- // Filters can expand the bounding box
- SVGResourceFilter* filter = getFilterById(document(), style()->svgStyle()->filter());
- if (filter)
- repaintRect.unite(enclosingIntRect(filter->filterBBoxForItemBBox(repaintRect)));
-#endif
+ TransformationMatrix ctm;
+ IntSize borderAndPadding = borderOriginToContentBox();
+ ctm.translate(borderAndPadding.width(), borderAndPadding.height());
+ SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
+ ctm.scale(svg->currentScale());
+ ctm.translate(svg->currentTranslate().x(), svg->currentTranslate().y());
+ return svg->viewBoxToViewTransform(width(), height()) * ctm;
+}
- return repaintRect;
+IntSize RenderSVGRoot::parentOriginToBorderBox() const
+{
+ return IntSize(x(), y());
}
-void RenderSVGRoot::addFocusRingRects(GraphicsContext* graphicsContext, int, int)
+IntSize RenderSVGRoot::borderOriginToContentBox() const
{
- graphicsContext->addFocusRingRect(m_absoluteBounds);
+ return IntSize(borderLeft() + paddingLeft(), borderTop() + paddingTop());
}
-void RenderSVGRoot::absoluteRects(Vector<IntRect>& rects, int, int)
+TransformationMatrix RenderSVGRoot::localToRepaintContainerTransform(const IntPoint& parentOriginInContainer) const
{
- for (RenderObject* current = firstChild(); current != 0; current = current->nextSibling())
- current->absoluteRects(rects, 0, 0);
+ TransformationMatrix parentToContainer;
+ parentToContainer.translate(parentOriginInContainer.x(), parentOriginInContainer.y());
+ return localToParentTransform() * parentToContainer;
}
-void RenderSVGRoot::absoluteQuads(Vector<FloatQuad>& quads, bool)
+TransformationMatrix RenderSVGRoot::localToParentTransform() const
{
- for (RenderObject* current = firstChild(); current != 0; current = current->nextSibling())
- current->absoluteQuads(quads);
+ IntSize parentToBorderBoxOffset = parentOriginToBorderBox();
+
+ TransformationMatrix borderBoxOriginToParentOrigin;
+ borderBoxOriginToParentOrigin.translate(parentToBorderBoxOffset.width(), parentToBorderBoxOffset.height());
+
+ return localToBorderBoxTransform() * borderBoxOriginToParentOrigin;
}
+// FIXME: This method should be removed as soon as callers to RenderBox::absoluteTransform() can be removed.
TransformationMatrix RenderSVGRoot::absoluteTransform() const
{
- TransformationMatrix ctm = RenderContainer::absoluteTransform();
- ctm.translate(m_x, m_y);
- SVGSVGElement* svg = static_cast<SVGSVGElement*>(element());
- ctm.scale(svg->currentScale());
- ctm.translate(svg->currentTranslate().x(), svg->currentTranslate().y());
- ctm.translate(viewport().x(), viewport().y());
- return svg->viewBoxToViewTransform(width(), height()) * ctm;
+ // This would apply localTransform() twice if localTransform() were not the identity.
+ return localToParentTransform() * RenderBox::absoluteTransform();
}
-FloatRect RenderSVGRoot::relativeBBox(bool includeStroke) const
+FloatRect RenderSVGRoot::objectBoundingBox() const
{
- FloatRect rect;
-
- RenderObject* current = firstChild();
- for (; current != 0; current = current->nextSibling()) {
- FloatRect childBBox = current->relativeBBox(includeStroke);
- FloatRect mappedBBox = current->localTransform().mapRect(childBBox);
- // <svg> can have a viewBox contributing to the bbox
- if (current->isSVGContainer())
- mappedBBox = static_cast<RenderSVGContainer*>(current)->viewportTransform().mapRect(mappedBBox);
- rect.unite(mappedBBox);
- }
+ return computeContainerBoundingBox(this, false);
+}
- return rect;
+FloatRect RenderSVGRoot::repaintRectInLocalCoordinates() const
+{
+ // FIXME: This does not include the border but it should!
+ return computeContainerBoundingBox(this, true);
}
TransformationMatrix RenderSVGRoot::localTransform() const
@@ -298,48 +261,56 @@ TransformationMatrix RenderSVGRoot::localTransform() const
return TransformationMatrix();
}
+void RenderSVGRoot::computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& repaintRect, bool fixed)
+{
+ // Apply our local transforms (except for x/y translation) and call RenderBox's method to handle all the normal CSS Box model bits
+ repaintRect = localToBorderBoxTransform().mapRect(repaintRect);
+ RenderBox::computeRectForRepaint(repaintContainer, repaintRect, fixed);
+}
+
+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);
+}
+
bool RenderSVGRoot::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int _x, int _y, int _tx, int _ty, HitTestAction hitTestAction)
{
- TransformationMatrix ctm = RenderContainer::absoluteTransform();
-
- int sx = (_tx - static_cast<int>(ctm.e())); // scroll offset
- int sy = (_ty - static_cast<int>(ctm.f())); // scroll offset
-
- if (!viewport().isEmpty()
- && style()->overflowX() == OHIDDEN
- && style()->overflowY() == OHIDDEN) {
- int tx = m_x - _tx + sx;
- int ty = m_y - _ty + sy;
-
- // Check if we need to do anything at all.
- IntRect overflowBox = overflowRect(false);
- overflowBox.move(tx, ty);
- ctm.translate(viewport().x(), viewport().y());
- double localX, localY;
- ctm.inverse().map(_x - _tx, _y - _ty, &localX, &localY);
- if (!overflowBox.contains((int)localX, (int)localY))
+ IntPoint pointInContainer(_x, _y);
+ IntSize containerToParentOffset(_tx, _ty);
+
+ IntPoint pointInParent = pointInContainer - containerToParentOffset;
+ IntPoint pointInBorderBox = pointInParent - parentOriginToBorderBox();
+
+ // Note: For now, we're ignoring hits to border and padding for <svg>
+
+ if (style()->overflowX() == OHIDDEN) {
+ // SVG doesn't support independent x/y overflow
+ ASSERT(style()->overflowY() == OHIDDEN);
+ IntPoint pointInContentBox = pointInBorderBox - borderOriginToContentBox();
+ if (!contentBoxRect().contains(pointInContentBox))
return false;
}
+ IntPoint localPoint = localToParentTransform().inverse().mapPoint(pointInParent);
+
for (RenderObject* child = lastChild(); child; child = child->previousSibling()) {
- if (child->nodeAtPoint(request, result, _x - sx, _y - sy, 0, 0, hitTestAction)) {
- updateHitTestResult(result, IntPoint(_x - _tx, _y - _ty));
+ if (child->nodeAtFloatPoint(request, result, localPoint, hitTestAction)) {
+ // FIXME: CSS/HTML assumes the local point is relative to the border box, right?
+ updateHitTestResult(result, pointInBorderBox);
return true;
}
}
-
- // Spec: Only graphical elements can be targeted by the mouse, period.
+
+ // Spec: Only graphical elements can be targeted by the mouse, so we don't check self here.
// 16.4: "If there are no graphics elements whose relevant graphics content is under the pointer (i.e., there is no target element), the event is not dispatched."
return false;
}
-void RenderSVGRoot::position(InlineBox* box)
-{
- RenderContainer::position(box);
- if (m_absoluteBounds.isEmpty())
- setNeedsLayout(true, false);
-}
-
}
#endif // ENABLE(SVG)
generated by cgit v0.12 at 2024-11-21 19:13:16 (GMT)