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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*
* This file is part of the WebKit project.
*
* Copyright (C) 2006 Apple Computer, Inc.
* 2006 Alexander Kellett <lypanov@kde.org>
* 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
* 2007 Nikolas Zimmermann <zimmermann@kde.org>
* 2008 Rob Buis <buis@kde.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 "RenderSVGText.h"
#include "FloatConversion.h"
#include "FloatQuad.h"
#include "GraphicsContext.h"
#include "PointerEventsHitRules.h"
#include "RenderSVGRoot.h"
#include "SVGLengthList.h"
#include "SVGResourceFilter.h"
#include "SVGRootInlineBox.h"
#include "SVGTextElement.h"
#include "SVGTransformList.h"
#include "SVGURIReference.h"
#include "SimpleFontData.h"
namespace WebCore {
RenderSVGText::RenderSVGText(SVGTextElement* node)
: RenderSVGBlock(node)
{
}
IntRect RenderSVGText::clippedOverflowRectForRepaint(RenderBoxModelObject* /*repaintContainer*/)
{
// FIXME: handle non-root repaintContainer
FloatRect repaintRect = absoluteTransform().mapRect(relativeBBox(true));
#if ENABLE(SVG_FILTERS)
// Filters can expand the bounding box
SVGResourceFilter* filter = getFilterById(document(), style()->svgStyle()->filter());
if (filter)
repaintRect.unite(filter->filterBBoxForItemBBox(repaintRect));
#endif
if (!repaintRect.isEmpty())
repaintRect.inflate(1); // inflate 1 pixel for antialiasing
return enclosingIntRect(repaintRect);
}
bool RenderSVGText::calculateLocalTransform()
{
TransformationMatrix oldTransform = m_localTransform;
m_localTransform = static_cast<SVGTextElement*>(node())->animatedLocalTransform();
return (oldTransform != m_localTransform);
}
void RenderSVGText::layout()
{
ASSERT(needsLayout());
// FIXME: This is a hack to avoid the RenderBlock::layout() partial repainting code which is not (yet) SVG aware
setNeedsLayout(true);
// FIXME: using m_absoluteBounds breaks if containerForRepaint() is not the root
LayoutRepainter repainter(*this, checkForRepaintDuringLayout(), &m_absoluteBounds);
// Best guess for a relative starting point
SVGTextElement* text = static_cast<SVGTextElement*>(node());
int xOffset = (int)(text->x()->getFirst().value(text));
int yOffset = (int)(text->y()->getFirst().value(text));
setLocation(xOffset, yOffset);
calculateLocalTransform();
RenderBlock::layout();
m_absoluteBounds = absoluteClippedOverflowRect();
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
RootInlineBox* RenderSVGText::createRootBox()
{
return new (renderArena()) SVGRootInlineBox(this);
}
bool RenderSVGText::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int _x, int _y, int _tx, int _ty, HitTestAction hitTestAction)
{
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_TEXT_HITTESTING, style()->pointerEvents());
bool isVisible = (style()->visibility() == VISIBLE);
if (isVisible || !hitRules.requireVisible) {
if ((hitRules.canHitStroke && (style()->svgStyle()->hasStroke() || !hitRules.requireStroke))
|| (hitRules.canHitFill && (style()->svgStyle()->hasFill() || !hitRules.requireFill))) {
TransformationMatrix totalTransform = absoluteTransform();
double localX, localY;
totalTransform.inverse().map(_x, _y, localX, localY);
FloatPoint hitPoint(_x, _y);
return RenderBlock::nodeAtPoint(request, result, (int)localX, (int)localY, _tx, _ty, hitTestAction);
}
}
return false;
}
void RenderSVGText::absoluteRects(Vector<IntRect>& rects, int, int, bool)
{
RenderSVGRoot* root = findSVGRootObject(parent());
if (!root)
return;
FloatPoint absPos = localToAbsolute();
TransformationMatrix htmlParentCtm = root->RenderBox::absoluteTransform();
// Don't use relativeBBox here, as it's unites the selection rects. Makes it hard
// to spot errors, if there are any using WebInspector. Individually feed them into 'rects'.
for (InlineRunBox* runBox = firstLineBox(); runBox; runBox = runBox->nextLineBox()) {
ASSERT(runBox->isInlineFlowBox());
InlineFlowBox* flowBox = static_cast<InlineFlowBox*>(runBox);
for (InlineBox* box = flowBox->firstChild(); box; box = box->nextOnLine()) {
FloatRect boxRect(box->x(), box->y(), box->width(), box->height());
boxRect.move(narrowPrecisionToFloat(absPos.x() - htmlParentCtm.e()), narrowPrecisionToFloat(absPos.y() - htmlParentCtm.f()));
// FIXME: broken with CSS transforms
rects.append(enclosingIntRect(absoluteTransform().mapRect(boxRect)));
}
}
}
void RenderSVGText::absoluteQuads(Vector<FloatQuad>& quads, bool)
{
RenderSVGRoot* root = findSVGRootObject(parent());
if (!root)
return;
FloatPoint absPos = localToAbsolute();
TransformationMatrix htmlParentCtm = root->RenderBox::absoluteTransform();
// Don't use relativeBBox here, as it's unites the selection rects. Makes it hard
// to spot errors, if there are any using WebInspector. Individually feed them into 'rects'.
for (InlineRunBox* runBox = firstLineBox(); runBox; runBox = runBox->nextLineBox()) {
ASSERT(runBox->isInlineFlowBox());
InlineFlowBox* flowBox = static_cast<InlineFlowBox*>(runBox);
for (InlineBox* box = flowBox->firstChild(); box; box = box->nextOnLine()) {
FloatRect boxRect(box->x(), box->y(), box->width(), box->height());
boxRect.move(narrowPrecisionToFloat(absPos.x() - htmlParentCtm.e()), narrowPrecisionToFloat(absPos.y() - htmlParentCtm.f()));
// FIXME: broken with CSS transforms
quads.append(absoluteTransform().mapRect(boxRect));
}
}
}
void RenderSVGText::paint(PaintInfo& paintInfo, int, int)
{
RenderObject::PaintInfo pi(paintInfo);
pi.rect = absoluteTransform().inverse().mapRect(pi.rect);
RenderBlock::paint(pi, 0, 0);
}
FloatRect RenderSVGText::relativeBBox(bool includeStroke) const
{
FloatRect repaintRect;
for (InlineRunBox* runBox = firstLineBox(); runBox; runBox = runBox->nextLineBox()) {
ASSERT(runBox->isInlineFlowBox());
InlineFlowBox* flowBox = static_cast<InlineFlowBox*>(runBox);
for (InlineBox* box = flowBox->firstChild(); box; box = box->nextOnLine())
repaintRect.unite(FloatRect(box->x(), box->y(), box->width(), box->height()));
}
// SVG needs to include the strokeWidth(), not the textStrokeWidth().
if (includeStroke && style()->svgStyle()->hasStroke()) {
float strokeWidth = SVGRenderStyle::cssPrimitiveToLength(this, style()->svgStyle()->strokeWidth(), 0.0f);
#if ENABLE(SVG_FONTS)
const Font& font = style()->font();
if (font.primaryFont()->isSVGFont()) {
float scale = font.unitsPerEm() > 0 ? font.size() / font.unitsPerEm() : 0.0f;
if (scale != 0.0f)
strokeWidth /= scale;
}
#endif
repaintRect.inflate(strokeWidth);
}
repaintRect.move(x(), y());
return repaintRect;
}
}
#endif // ENABLE(SVG)
// vim:ts=4:noet
|
