1 /*
2 * Copyright (C) 2006 Apple Computer, Inc.
3 * Copyright (C) 2009 Google, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22 #include "config.h"
23
24 #if ENABLE(SVG) && ENABLE(SVG_FOREIGN_OBJECT)
25 #include "RenderForeignObject.h"
26
27 #include "GraphicsContext.h"
28 #include "RenderView.h"
29 #include "SVGForeignObjectElement.h"
30 #include "SVGLength.h"
31 #include "SVGRenderSupport.h"
32 #include "SVGTransformList.h"
33
34 namespace WebCore {
35
RenderForeignObject(SVGForeignObjectElement * node)36 RenderForeignObject::RenderForeignObject(SVGForeignObjectElement* node)
37 : RenderSVGBlock(node)
38 {
39 }
40
translationForAttributes() const41 FloatPoint RenderForeignObject::translationForAttributes() const
42 {
43 SVGForeignObjectElement* foreign = static_cast<SVGForeignObjectElement*>(node());
44 return FloatPoint(foreign->x().value(foreign), foreign->y().value(foreign));
45 }
46
paint(PaintInfo & paintInfo,int,int)47 void RenderForeignObject::paint(PaintInfo& paintInfo, int, int)
48 {
49 if (paintInfo.context->paintingDisabled())
50 return;
51
52 // Copy the paint info so that modifications to the damage rect do not affect callers
53 PaintInfo childPaintInfo = paintInfo;
54 childPaintInfo.context->save();
55 applyTransformToPaintInfo(childPaintInfo, localToParentTransform());
56 childPaintInfo.context->clip(clipRect(0, 0));
57
58 float opacity = style()->opacity();
59 if (opacity < 1.0f)
60 childPaintInfo.context->beginTransparencyLayer(opacity);
61
62 RenderBlock::paint(childPaintInfo, 0, 0);
63
64 if (opacity < 1.0f)
65 childPaintInfo.context->endTransparencyLayer();
66
67 childPaintInfo.context->restore();
68 }
69
objectBoundingBox() const70 FloatRect RenderForeignObject::objectBoundingBox() const
71 {
72 return borderBoxRect();
73 }
74
repaintRectInLocalCoordinates() const75 FloatRect RenderForeignObject::repaintRectInLocalCoordinates() const
76 {
77 // HACK: to maintain historical LayoutTest results for now.
78 // RenderForeignObject is a RenderBlock (not a RenderSVGModelObject) so this
79 // should not affect repaint correctness. But it should really be:
80 // return borderBoxRect();
81 return FloatRect();
82 }
83
computeRectForRepaint(RenderBoxModelObject * repaintContainer,IntRect & rect,bool fixed)84 void RenderForeignObject::computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& rect, bool fixed)
85 {
86 rect = localToParentTransform().mapRect(rect);
87 style()->svgStyle()->inflateForShadow(rect);
88 RenderBlock::computeRectForRepaint(repaintContainer, rect, fixed);
89 }
90
localToParentTransform() const91 const AffineTransform& RenderForeignObject::localToParentTransform() const
92 {
93 FloatPoint attributeTranslation(translationForAttributes());
94 m_localToParentTransform = localTransform().translateRight(attributeTranslation.x(), attributeTranslation.y());
95 return m_localToParentTransform;
96 }
97
layout()98 void RenderForeignObject::layout()
99 {
100 ASSERT(needsLayout());
101 ASSERT(!view()->layoutStateEnabled()); // RenderSVGRoot disables layoutState for the SVG rendering tree.
102
103 LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
104 m_localTransform = static_cast<SVGForeignObjectElement*>(node())->animatedLocalTransform();
105
106 RenderBlock::layout();
107 repainter.repaintAfterLayout();
108
109 setNeedsLayout(false);
110 }
111
nodeAtFloatPoint(const HitTestRequest & request,HitTestResult & result,const FloatPoint & pointInParent,HitTestAction hitTestAction)112 bool RenderForeignObject::nodeAtFloatPoint(const HitTestRequest& request, HitTestResult& result, const FloatPoint& pointInParent, HitTestAction hitTestAction)
113 {
114 FloatPoint localPoint = localToParentTransform().inverse().mapPoint(pointInParent);
115 return RenderBlock::nodeAtPoint(request, result, static_cast<int>(localPoint.x()), static_cast<int>(localPoint.y()), 0, 0, hitTestAction);
116 }
117
nodeAtPoint(const HitTestRequest &,HitTestResult &,int,int,int,int,HitTestAction)118 bool RenderForeignObject::nodeAtPoint(const HitTestRequest&, HitTestResult&, int, int, int, int, HitTestAction)
119 {
120 ASSERT_NOT_REACHED();
121 return false;
122 }
123
mapLocalToContainer(RenderBoxModelObject * repaintContainer,bool fixed,bool useTransforms,TransformState & transformState) const124 void RenderForeignObject::mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool fixed , bool useTransforms, TransformState& transformState) const
125 {
126 SVGRenderBase::mapLocalToContainer(this, repaintContainer, fixed, useTransforms, transformState);
127 }
128
129 } // namespace WebCore
130
131 #endif // ENABLE(SVG) && ENABLE(SVG_FOREIGN_OBJECT)
132