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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 "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 override { 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&, MutableStyleProperties&) override;
virtual void svgAttributeChanged(const QualifiedName&) override;
virtual bool selfHasRelativeLengths() const override;
private:
virtual bool isTextContent() const override final { 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
};
void isSVGTextContentElement(const SVGTextContentElement&); // Catch unnecessary runtime check of type known at compile time.
inline bool isSVGTextContentElement(const SVGElement& element) { return element.isTextContent(); }
inline bool isSVGTextContentElement(const Node& node) { return node.isSVGElement() && toSVGElement(node).isTextContent(); }
NODE_TYPE_CASTS(SVGTextContentElement)
} // namespace WebCore
#endif
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