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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef __NS_SVGANGLE_H__
#define __NS_SVGANGLE_H__
#include "nsCOMPtr.h"
#include "nsError.h"
#include "nsISMILAttr.h"
#include "mozilla/Attributes.h"
class nsISupports;
class nsSMILValue;
class nsSVGElement;
namespace mozilla {
// Angle Unit Types
static const unsigned short SVG_ANGLETYPE_UNKNOWN = 0;
static const unsigned short SVG_ANGLETYPE_UNSPECIFIED = 1;
static const unsigned short SVG_ANGLETYPE_DEG = 2;
static const unsigned short SVG_ANGLETYPE_RAD = 3;
static const unsigned short SVG_ANGLETYPE_GRAD = 4;
namespace dom {
class nsSVGOrientType;
class SVGAngle;
class SVGAnimatedAngle;
class SVGAnimationElement;
} // namespace dom
} // namespace mozilla
class nsSVGAngle
{
friend class mozilla::dom::SVGAngle;
friend class mozilla::dom::SVGAnimatedAngle;
public:
void Init(uint8_t aAttrEnum = 0xff,
float aValue = 0,
uint8_t aUnitType = mozilla::SVG_ANGLETYPE_UNSPECIFIED) {
mAnimVal = mBaseVal = aValue;
mAnimValUnit = mBaseValUnit = aUnitType;
mAttrEnum = aAttrEnum;
mIsAnimated = false;
}
nsresult SetBaseValueString(const nsAString& aValue,
nsSVGElement *aSVGElement,
bool aDoSetAttr);
void GetBaseValueString(nsAString& aValue) const;
void GetAnimValueString(nsAString& aValue) const;
float GetBaseValue() const
{ return mBaseVal * GetDegreesPerUnit(mBaseValUnit); }
float GetAnimValue() const
{ return mAnimVal * GetDegreesPerUnit(mAnimValUnit); }
void SetBaseValue(float aValue, nsSVGElement *aSVGElement, bool aDoSetAttr);
void SetAnimValue(float aValue, uint8_t aUnit, nsSVGElement *aSVGElement);
uint8_t GetBaseValueUnit() const { return mBaseValUnit; }
uint8_t GetAnimValueUnit() const { return mAnimValUnit; }
float GetBaseValInSpecifiedUnits() const { return mBaseVal; }
float GetAnimValInSpecifiedUnits() const { return mAnimVal; }
static nsresult ToDOMSVGAngle(nsISupports **aResult);
already_AddRefed<mozilla::dom::SVGAnimatedAngle>
ToDOMAnimatedAngle(nsSVGElement* aSVGElement);
// Returns a new nsISMILAttr object that the caller must delete
nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement);
static float GetDegreesPerUnit(uint8_t aUnit);
private:
float mAnimVal;
float mBaseVal;
uint8_t mAnimValUnit;
uint8_t mBaseValUnit;
uint8_t mAttrEnum; // element specified tracking for attribute
bool mIsAnimated;
void SetBaseValueInSpecifiedUnits(float aValue, nsSVGElement *aSVGElement);
nsresult NewValueSpecifiedUnits(uint16_t aUnitType, float aValue,
nsSVGElement *aSVGElement);
nsresult ConvertToSpecifiedUnits(uint16_t aUnitType, nsSVGElement *aSVGElement);
already_AddRefed<mozilla::dom::SVGAngle> ToDOMBaseVal(nsSVGElement* aSVGElement);
already_AddRefed<mozilla::dom::SVGAngle> ToDOMAnimVal(nsSVGElement* aSVGElement);
public:
// We do not currently implemente a SMILAngle struct because in SVG 1.1 the
// only *animatable* attribute that takes an <angle> is 'orient', on the
// 'marker' element, and 'orient' must be special cased since it can also
// take the value 'auto', making it a more complex type.
struct SMILOrient final : public nsISMILAttr
{
public:
SMILOrient(mozilla::dom::nsSVGOrientType* aOrientType,
nsSVGAngle* aAngle,
nsSVGElement* aSVGElement)
: mOrientType(aOrientType)
, mAngle(aAngle)
, mSVGElement(aSVGElement)
{}
// These will stay alive because a nsISMILAttr only lives as long
// as the Compositing step, and DOM elements don't get a chance to
// die during that.
mozilla::dom::nsSVGOrientType* mOrientType;
nsSVGAngle* mAngle;
nsSVGElement* mSVGElement;
// nsISMILAttr methods
virtual nsresult ValueFromString(const nsAString& aStr,
const mozilla::dom::SVGAnimationElement* aSrcElement,
nsSMILValue& aValue,
bool& aPreventCachingOfSandwich) const override;
virtual nsSMILValue GetBaseValue() const override;
virtual void ClearAnimValue() override;
virtual nsresult SetAnimValue(const nsSMILValue& aValue) override;
};
};
#endif //__NS_SVGANGLE_H__
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