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/*
* 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
#include "core/svg/SVGAnimatedBoolean.h"
#include "core/svg/SVGAnimatedEnumeration.h"
#include "core/svg/SVGAnimatedLength.h"
#include "core/svg/SVGExternalResourcesRequired.h"
#include "core/svg/SVGGraphicsElement.h"
namespace WebCore {
class ExceptionState;
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, ExceptionState&);
SVGPoint getStartPositionOfChar(unsigned charnum, ExceptionState&);
SVGPoint getEndPositionOfChar(unsigned charnum, ExceptionState&);
SVGRect getExtentOfChar(unsigned charnum, ExceptionState&);
float getRotationOfChar(unsigned charnum, ExceptionState&);
int getCharNumAtPosition(const SVGPoint&);
void selectSubString(unsigned charnum, unsigned nchars, ExceptionState&);
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> textLength();
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 bool isSVGTextContentElement(const Node& node)
{
return node.isSVGElement() && toSVGElement(node).isTextContent();
}
DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION(SVGTextContentElement);
} // namespace WebCore
#endif
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