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
|
/*
* Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 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.
*/
#ifndef SVGTextContentElement_h
#define SVGTextContentElement_h
#if ENABLE(SVG)
#include "SVGAnimatedBoolean.h"
#include "SVGAnimatedEnumeration.h"
#include "SVGAnimatedLength.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGGraphicsElement.h"
namespace WebCore {
enum SVGLengthAdjustType {
SVGLengthAdjustUnknown,
SVGLengthAdjustSpacing,
SVGLengthAdjustSpacingAndGlyphs
};
template<>
struct SVGPropertyTraits<SVGLengthAdjustType> {
static unsigned highestEnumValue() { return SVGLengthAdjustSpacingAndGlyphs; }
static String toString(SVGLengthAdjustType type)
{
switch (type) {
case SVGLengthAdjustUnknown:
return emptyString();
case SVGLengthAdjustSpacing:
return "spacing";
case SVGLengthAdjustSpacingAndGlyphs:
return "spacingAndGlyphs";
}
ASSERT_NOT_REACHED();
return emptyString();
}
static SVGLengthAdjustType fromString(const String& value)
{
if (value == "spacingAndGlyphs")
return SVGLengthAdjustSpacingAndGlyphs;
if (value == "spacing")
return SVGLengthAdjustSpacing;
return SVGLengthAdjustUnknown;
}
};
class SVGTextContentElement : public SVGGraphicsElement,
public SVGExternalResourcesRequired {
public:
// Forward declare enumerations in the W3C naming scheme, for IDL generation.
enum {
LENGTHADJUST_UNKNOWN = SVGLengthAdjustUnknown,
LENGTHADJUST_SPACING = SVGLengthAdjustSpacing,
LENGTHADJUST_SPACINGANDGLYPHS = SVGLengthAdjustSpacingAndGlyphs
};
unsigned getNumberOfChars();
float getComputedTextLength();
float getSubStringLength(unsigned charnum, unsigned nchars, ExceptionCode&);
SVGPoint getStartPositionOfChar(unsigned charnum, ExceptionCode&);
SVGPoint getEndPositionOfChar(unsigned charnum, ExceptionCode&);
FloatRect getExtentOfChar(unsigned charnum, ExceptionCode&);
float getRotationOfChar(unsigned charnum, ExceptionCode&);
int getCharNumAtPosition(const SVGPoint&);
void selectSubString(unsigned charnum, unsigned nchars, ExceptionCode&);
static SVGTextContentElement* elementFromRenderer(RenderObject*);
// textLength is not declared using the standard DECLARE_ANIMATED_LENGTH macro
// as its getter needs special handling (return getComputedTextLength(), instead of m_textLength).
SVGLength& specifiedTextLength() { return m_specifiedTextLength; }
PassRefPtr<SVGAnimatedLength> textLengthAnimated();
static const SVGPropertyInfo* textLengthPropertyInfo();
protected:
SVGTextContentElement(const QualifiedName&, Document*);
virtual bool isValid() const { return SVGTests::isValid(); }
bool isSupportedAttribute(const QualifiedName&);
virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE;
virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) OVERRIDE;
virtual void svgAttributeChanged(const QualifiedName&);
virtual bool selfHasRelativeLengths() const;
private:
virtual bool isTextContent() const { return true; }
// Custom 'textLength' property
static void synchronizeTextLength(SVGElement* contextElement);
static PassRefPtr<SVGAnimatedProperty> lookupOrCreateTextLengthWrapper(SVGElement* contextElement);
mutable SVGSynchronizableAnimatedProperty<SVGLength> m_textLength;
SVGLength m_specifiedTextLength;
BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGTextContentElement)
DECLARE_ANIMATED_ENUMERATION(LengthAdjust, lengthAdjust, SVGLengthAdjustType)
DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
END_DECLARE_ANIMATED_PROPERTIES
};
inline SVGTextContentElement* toSVGTextContentElement(SVGElement* element)
{
ASSERT_WITH_SECURITY_IMPLICATION(!element || element->isTextContent());
return static_cast<SVGTextContentElement*>(element);
}
} // namespace WebCore
#endif // ENABLE(SVG)
#endif
|
