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SVGGlyphElement.h
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1/*
2 Copyright (C) 2007 Eric Seidel <eric@webkit.org>
3 Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
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#ifndef SVGGlyphElement_h
22#define SVGGlyphElement_h
23
24#if ENABLE(SVG_FONTS)
25#include "SVGStyledElement.h"
26
27#include <limits>
28#include "Path.h"
29
30namespace khtml
31{
32 class AtomicString;
33}
34
35namespace WebCore {
36
37 using khtml::AtomicString;
38 struct SVGFontData;
39
40 // Describe a SVG <glyph> element
41 struct SVGGlyphIdentifier {
42 enum Orientation {
43 Vertical,
44 Horizontal,
45 Both
46 };
47
48 // SVG Font depends on exactly this order.
49 enum ArabicForm {
50 None = 0,
51 Isolated,
52 Terminal,
53 Initial,
54 Medial
55 };
56
57 SVGGlyphIdentifier()
58 : isValid(false)
59 , orientation(Both)
60 , arabicForm(None)
61 , priority(0)
62 , nameLength(0)
63 , horizontalAdvanceX(0.0f)
64 , verticalOriginX(0.0f)
65 , verticalOriginY(0.0f)
66 , verticalAdvanceY(0.0f)
67 {
68 }
69
70 // Used to mark our float properties as "to be inherited from SVGFontData"
71 static float inheritedValue()
72 {
73 static float s_inheritedValue = std::numeric_limits<float>::infinity();
74 return s_inheritedValue;
75 }
76
77 bool operator==(const SVGGlyphIdentifier& other) const
78 {
79 return isValid == other.isValid &&
80 orientation == other.orientation &&
81 arabicForm == other.arabicForm &&
82 glyphName == other.glyphName &&
83 horizontalAdvanceX == other.horizontalAdvanceX &&
84 verticalOriginX == other.verticalOriginX &&
85 verticalOriginY == other.verticalOriginY &&
86 verticalAdvanceY == other.verticalAdvanceY &&
87 pathData.debugString() == other.pathData.debugString() &&
88 languages == other.languages;
89 }
90
91 bool isValid : 1;
92
93 Orientation orientation : 2;
94 ArabicForm arabicForm : 3;
95 int priority;
96 size_t nameLength;
97 String glyphName;
98
99 float horizontalAdvanceX;
100 float verticalOriginX;
101 float verticalOriginY;
102 float verticalAdvanceY;
103
104 Path pathData;
105 Vector<String> languages;
106 };
107
108 class SVGGlyphElement : public SVGStyledElement {
109 public:
110 SVGGlyphElement(const QualifiedName&, Document*);
111 virtual ~SVGGlyphElement();
112
113 virtual void insertedIntoDocument();
114 virtual void removedFromDocument();
115
116 virtual bool rendererIsNeeded(RenderStyle*) { return false; }
117
118 SVGGlyphIdentifier buildGlyphIdentifier() const;
119
120 // Helper function used by SVGFont
121 static void inheritUnspecifiedAttributes(SVGGlyphIdentifier&, const SVGFontData*);
122 static String querySVGFontLanguage(const SVGElement*);
123
124 // Helper function shared between SVGGlyphElement & SVGMissingGlyphElement
125 static SVGGlyphIdentifier buildGenericGlyphIdentifier(const SVGElement*);
126 };
127
128} // namespace WebCore
129
130#endif // ENABLE(SVG_FONTS)
131#endif
Path.h
SVGStyledElement.h
operator==
bool operator==(const KEntry &k1, const KEntry &k2)
None
None
WebCore
Definition: CSSHelper.h:7
WebCore::String
DOM::DOMString String
Definition: PlatformString.h:8
WebCore::Path
khtml::Path Path
Definition: PathTraversalState.h:37
khtml
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