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
|
/*
* Copyright (C) 2007 Rob Buis <buis@kde.org>
* (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* 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.
*
*/
#ifndef SVGInlineTextBox_h
#define SVGInlineTextBox_h
#if ENABLE(SVG)
#include "InlineTextBox.h"
#include "SVGTextChunkLayoutInfo.h"
#include "SVGTextLayoutUtilities.h"
namespace WebCore {
class RenderSVGResource;
class SVGRootInlineBox;
struct SVGCharacterLayoutInfo;
struct SVGLastGlyphInfo;
class SVGInlineTextBox : public InlineTextBox {
public:
SVGInlineTextBox(RenderObject*);
virtual bool isSVGInlineTextBox() const { return true; }
virtual int virtualLogicalHeight() const { return m_logicalHeight; }
void setLogicalHeight(int height) { m_logicalHeight = height; }
virtual int selectionTop() { return m_y; }
virtual int selectionHeight() { return m_logicalHeight; }
virtual int offsetForPosition(int x, bool includePartialGlyphs = true) const;
virtual int positionForOffset(int offset) const;
virtual void paint(PaintInfo&, int tx, int ty);
virtual IntRect selectionRect(int absx, int absy, int startPos, int endPos);
virtual void selectionStartEnd(int& startPos, int& endPos);
void mapStartEndPositionsIntoChunkPartCoordinates(int& startPos, int& endPos, const SVGTextChunkPart&) const;
SVGRootInlineBox* svgRootInlineBox() const;
// Helper functions shared with SVGRootInlineBox
void measureCharacter(RenderStyle*, int position, int& charsConsumed, String& glyphName, String& unicodeString, float& glyphWidth, float& glyphHeight) const;
FloatRect calculateGlyphBoundaries(RenderStyle*, int position, const SVGChar&) const;
void buildLayoutInformation(SVGCharacterLayoutInfo&, SVGLastGlyphInfo&);
const AffineTransform& chunkTransformation() const { return m_chunkTransformation; }
void setChunkTransformation(const AffineTransform& transform) { m_chunkTransformation = transform; }
void addChunkPartInformation(const SVGTextChunkPart& part) { m_svgTextChunkParts.append(part); }
const Vector<SVGTextChunkPart>& svgTextChunkParts() const { return m_svgTextChunkParts; }
virtual IntRect calculateBoundaries() const;
private:
TextRun constructTextRun(RenderStyle*) const;
AffineTransform buildChunkTransformation(SVGChar& firstCharacter) const;
bool acquirePaintingResource(GraphicsContext*&, RenderObject*, RenderStyle*);
void releasePaintingResource(GraphicsContext*&);
bool prepareGraphicsContextForTextPainting(GraphicsContext*&, TextRun&, RenderStyle*);
void restoreGraphicsContextAfterTextPainting(GraphicsContext*&, TextRun&);
void computeTextMatchMarkerRect(RenderStyle*);
void paintDecoration(GraphicsContext*, const FloatPoint& textOrigin, ETextDecoration, bool hasSelection);
void paintDecorationWithStyle(GraphicsContext*, const FloatPoint& textOrigin, RenderObject*, ETextDecoration);
void paintSelection(GraphicsContext*, const FloatPoint& textOrigin, RenderStyle*);
void paintText(GraphicsContext*, const FloatPoint& textOrigin, RenderStyle*, RenderStyle* selectionStyle, bool hasSelection, bool paintSelectedTextOnly);
void paintTextWithShadows(GraphicsContext*, const FloatPoint& textOrigin, RenderStyle*, TextRun&, int startPos, int endPos);
FloatRect selectionRectForTextChunkPart(const SVGTextChunkPart&, int partStartPos, int partEndPos, RenderStyle*);
private:
int m_logicalHeight;
AffineTransform m_chunkTransformation;
Vector<SVGTextChunkPart> m_svgTextChunkParts;
mutable SVGTextChunkPart m_currentChunkPart;
RenderSVGResource* m_paintingResource;
int m_paintingResourceMode;
};
} // namespace WebCore
#endif
#endif // SVGInlineTextBox_h
|
