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