1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005, 2007, 2008 Rob Buis <buis@kde.org>
2007 Eric Seidel <eric@webkit.org>
Copyright (C) 2009 Google, Inc. All rights reserved.
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
aint 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 "RenderSVGContainer.h"
#include "GraphicsContext.h"
#include "RenderSVGResource.h"
#include "RenderSVGResourceFilter.h"
#include "RenderView.h"
#include "SVGRenderSupport.h"
#include "SVGResources.h"
#include "SVGStyledElement.h"
namespace WebCore {
RenderSVGContainer::RenderSVGContainer(SVGStyledElement* node)
: RenderSVGModelObject(node)
, m_drawsContents(true)
, m_needsBoundariesUpdate(true)
{
}
void RenderSVGContainer::layout()
{
ASSERT(needsLayout());
// RenderSVGRoot disables layoutState for the SVG rendering tree.
ASSERT(!view()->layoutStateEnabled());
// Allow RenderSVGViewportContainer to update its viewport.
calcViewport();
LayoutRepainter repainter(*this, checkForRepaintDuringLayout() || selfWillPaint());
// Allow RenderSVGTransformableContainer to update its transform.
bool updatedTransform = calculateLocalTransform();
SVGRenderSupport::layoutChildren(this, selfNeedsLayout());
// Invalidate all resources of this client if our layout changed.
if (m_everHadLayout && selfNeedsLayout())
SVGResourcesCache::clientLayoutChanged(this);
// At this point LayoutRepainter already grabbed the old bounds,
// recalculate them now so repaintAfterLayout() uses the new bounds.
if (m_needsBoundariesUpdate || updatedTransform) {
updateCachedBoundaries();
m_needsBoundariesUpdate = false;
// If our bounds changed, notify the parents.
RenderSVGModelObject::setNeedsBoundariesUpdate();
}
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
bool RenderSVGContainer::selfWillPaint()
{
#if ENABLE(FILTERS)
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
return resources && resources->filter();
#else
return false;
#endif
}
void RenderSVGContainer::paint(PaintInfo& paintInfo, int, int)
{
if (paintInfo.context->paintingDisabled() || !drawsContents())
return;
// Spec: groups w/o children still may render filter content.
if (!firstChild() && !selfWillPaint())
return;
FloatRect repaintRect = repaintRectInLocalCoordinates();
if (!SVGRenderSupport::paintInfoIntersectsRepaintRect(repaintRect, localToParentTransform(), paintInfo))
return;
PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
// Let the RenderSVGViewportContainer subclass clip if necessary
applyViewportClip(childPaintInfo);
childPaintInfo.applyTransform(localToParentTransform());
bool continueRendering = true;
if (childPaintInfo.phase == PaintPhaseForeground)
continueRendering = SVGRenderSupport::prepareToRenderSVGContent(this, childPaintInfo);
if (continueRendering) {
childPaintInfo.updatePaintingRootForChildren(this);
for (RenderObject* child = firstChild(); child; child = child->nextSibling())
child->paint(childPaintInfo, 0, 0);
}
if (paintInfo.phase == PaintPhaseForeground)
SVGRenderSupport::finishRenderSVGContent(this, childPaintInfo, paintInfo.context);
childPaintInfo.context->restore();
// FIXME: This really should be drawn from local coordinates, but currently we hack it
// to avoid our clip killing our outline rect. Thus we translate our
// outline rect into parent coords before drawing.
// FIXME: This means our focus ring won't share our rotation like it should.
// We should instead disable our clip during PaintPhaseOutline
if ((paintInfo.phase == PaintPhaseOutline || paintInfo.phase == PaintPhaseSelfOutline) && style()->outlineWidth() && style()->visibility() == VISIBLE) {
IntRect paintRectInParent = enclosingIntRect(localToParentTransform().mapRect(repaintRect));
paintOutline(paintInfo.context, paintRectInParent.x(), paintRectInParent.y(), paintRectInParent.width(), paintRectInParent.height());
}
}
// addFocusRingRects is called from paintOutline and needs to be in the same coordinates as the paintOuline call
void RenderSVGContainer::addFocusRingRects(Vector<IntRect>& rects, int, int)
{
IntRect paintRectInParent = enclosingIntRect(localToParentTransform().mapRect(repaintRectInLocalCoordinates()));
if (!paintRectInParent.isEmpty())
rects.append(paintRectInParent);
}
void RenderSVGContainer::updateCachedBoundaries()
{
m_objectBoundingBox = FloatRect();
m_strokeBoundingBox = FloatRect();
m_repaintBoundingBox = FloatRect();
SVGRenderSupport::computeContainerBoundingBoxes(this, m_objectBoundingBox, m_strokeBoundingBox, m_repaintBoundingBox);
SVGRenderSupport::intersectRepaintRectWithResources(this, m_repaintBoundingBox);
}
bool RenderSVGContainer::nodeAtFloatPoint(const HitTestRequest& request, HitTestResult& result, const FloatPoint& pointInParent, HitTestAction hitTestAction)
{
// Give RenderSVGViewportContainer a chance to apply its viewport clip
if (!pointIsInsideViewportClip(pointInParent))
return false;
FloatPoint localPoint = localToParentTransform().inverse().mapPoint(pointInParent);
if (!SVGRenderSupport::pointInClippingArea(this, localPoint))
return false;
for (RenderObject* child = lastChild(); child; child = child->previousSibling()) {
if (child->nodeAtFloatPoint(request, result, localPoint, hitTestAction)) {
updateHitTestResult(result, roundedIntPoint(localPoint));
return true;
}
}
// Spec: Only graphical elements can be targeted by the mouse, period.
// 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;
}
}
#endif // ENABLE(SVG)
|
