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/*
* Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006 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 SVGLength_h
#define SVGLength_h
#include "bindings/v8/ExceptionMessages.h"
#include "bindings/v8/ExceptionStatePlaceholder.h"
#include "core/svg/SVGLengthContext.h"
#include "core/svg/properties/SVGProperty.h"
#include "platform/heap/Handle.h"
namespace WebCore {
class CSSPrimitiveValue;
class ExceptionState;
class QualifiedName;
enum SVGLengthNegativeValuesMode {
AllowNegativeLengths,
ForbidNegativeLengths
};
class SVGLengthTearOff;
class SVGLength FINAL : public SVGPropertyBase {
public:
typedef SVGLengthTearOff TearOffType;
static PassRefPtr<SVGLength> create(SVGLengthMode mode = LengthModeOther)
{
return adoptRef(new SVGLength(mode));
}
PassRefPtr<SVGLength> clone() const;
virtual PassRefPtr<SVGPropertyBase> cloneForAnimation(const String&) const OVERRIDE;
SVGLengthType unitType() const { return static_cast<SVGLengthType>(m_unitType); }
void setUnitType(SVGLengthType);
SVGLengthMode unitMode() const { return static_cast<SVGLengthMode>(m_unitMode); }
bool operator==(const SVGLength&) const;
bool operator!=(const SVGLength& other) const { return !operator==(other); }
float value(const SVGLengthContext& context) const
{
return value(context, IGNORE_EXCEPTION);
}
float value(const SVGLengthContext&, ExceptionState&) const;
void setValue(float, const SVGLengthContext&, ExceptionState&);
float valueInSpecifiedUnits() const { return m_valueInSpecifiedUnits; }
void setValueInSpecifiedUnits(float value) { m_valueInSpecifiedUnits = value; }
float valueAsPercentage() const;
virtual String valueAsString() const OVERRIDE;
void setValueAsString(const String&, ExceptionState&);
void newValueSpecifiedUnits(SVGLengthType, float valueInSpecifiedUnits);
void convertToSpecifiedUnits(SVGLengthType, const SVGLengthContext&, ExceptionState&);
// Helper functions
inline bool isRelative() const
{
return m_unitType == LengthTypePercentage
|| m_unitType == LengthTypeEMS
|| m_unitType == LengthTypeEXS;
}
bool isZero() const
{
return !m_valueInSpecifiedUnits;
}
static PassRefPtr<SVGLength> fromCSSPrimitiveValue(CSSPrimitiveValue*);
static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> toCSSPrimitiveValue(PassRefPtr<SVGLength>);
static SVGLengthMode lengthModeForAnimatedLengthAttribute(const QualifiedName&);
PassRefPtr<SVGLength> blend(PassRefPtr<SVGLength> from, float progress) const;
virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) OVERRIDE;
virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> from, PassRefPtr<SVGPropertyBase> to, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) OVERRIDE;
virtual float calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement* contextElement) OVERRIDE;
static AnimatedPropertyType classType() { return AnimatedLength; }
private:
SVGLength(SVGLengthMode);
SVGLength(const SVGLength&);
float m_valueInSpecifiedUnits;
unsigned m_unitMode : 2;
unsigned m_unitType : 4;
};
inline PassRefPtr<SVGLength> toSVGLength(PassRefPtr<SVGPropertyBase> passBase)
{
RefPtr<SVGPropertyBase> base = passBase;
ASSERT(base->type() == SVGLength::classType());
return static_pointer_cast<SVGLength>(base.release());
}
} // namespace WebCore
#endif // SVGLength_h
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