SVGTextContentElement.h [plain text]
#pragma once
#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 ASCIILiteral("spacing");
case SVGLengthAdjustSpacingAndGlyphs:
return ASCIILiteral("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:
enum {
LENGTHADJUST_UNKNOWN = SVGLengthAdjustUnknown,
LENGTHADJUST_SPACING = SVGLengthAdjustSpacing,
LENGTHADJUST_SPACINGANDGLYPHS = SVGLengthAdjustSpacingAndGlyphs
};
unsigned getNumberOfChars();
float getComputedTextLength();
ExceptionOr<float> getSubStringLength(unsigned charnum, unsigned nchars);
ExceptionOr<Ref<SVGPoint>> getStartPositionOfChar(unsigned charnum);
ExceptionOr<Ref<SVGPoint>> getEndPositionOfChar(unsigned charnum);
ExceptionOr<Ref<SVGRect>> getExtentOfChar(unsigned charnum);
ExceptionOr<float> getRotationOfChar(unsigned charnum);
int getCharNumAtPosition(SVGPoint&);
ExceptionOr<void> selectSubString(unsigned charnum, unsigned nchars);
static SVGTextContentElement* elementFromRenderer(RenderObject*);
SVGLengthValue& specifiedTextLength() { return m_specifiedTextLength; }
Ref<SVGAnimatedLength> textLengthAnimated();
static const SVGPropertyInfo* textLengthPropertyInfo();
protected:
SVGTextContentElement(const QualifiedName&, Document&);
bool isValid() const override { return SVGTests::isValid(); }
void parseAttribute(const QualifiedName&, const AtomicString&) override;
bool isPresentationAttribute(const QualifiedName&) const override;
void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStyleProperties&) override;
void svgAttributeChanged(const QualifiedName&) override;
bool selfHasRelativeLengths() const override;
private:
bool isTextContent() const final { return true; }
static bool isSupportedAttribute(const QualifiedName&);
static void synchronizeTextLength(SVGElement* contextElement);
static Ref<SVGAnimatedProperty> lookupOrCreateTextLengthWrapper(SVGElement* contextElement);
mutable SVGSynchronizableAnimatedProperty<SVGLengthValue> m_textLength;
SVGLengthValue m_specifiedTextLength;
BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGTextContentElement)
DECLARE_ANIMATED_ENUMERATION(LengthAdjust, lengthAdjust, SVGLengthAdjustType)
DECLARE_ANIMATED_BOOLEAN_OVERRIDE(ExternalResourcesRequired, externalResourcesRequired)
END_DECLARE_ANIMATED_PROPERTIES
};
}
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::SVGTextContentElement)
static bool isType(const WebCore::SVGElement& element) { return element.isTextContent(); }
static bool isType(const WebCore::Node& node) { return is<WebCore::SVGElement>(node) && isType(downcast<WebCore::SVGElement>(node)); }
SPECIALIZE_TYPE_TRAITS_END()