зеркало из https://github.com/mozilla/gecko-dev.git
58 строки
2.0 KiB
C++
58 строки
2.0 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 DOM_SVG_SVGORIENTSMILTYPE_H_
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#define DOM_SVG_SVGORIENTSMILTYPE_H_
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#include "mozilla/Attributes.h"
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#include "mozilla/SMILType.h"
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/**
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* This SMILType class is a special case for the 'orient' attribute on SVG's
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* 'marker' element.
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*
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* orient = "auto | auto-start-reverse | <angle>"
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*
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* Unusually, this attribute doesn't have just a single corresponding DOM
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* property, but rather is split into two properties: 'orientType' (of type
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* DOMSVGAnimatedEnumeration) and 'orientAngle' (of type DOMSVGAnimatedAngle).
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* If 'orientType.animVal' is SVG_MARKER_ORIENT_ANGLE, then
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* 'orientAngle.animVal' contains the angle that is being used. The lacuna
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* value is 0.
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*/
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namespace mozilla {
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class SMILValue;
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class SVGOrientSMILType : public SMILType {
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public:
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// Singleton for SMILValue objects to hold onto.
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static SVGOrientSMILType sSingleton;
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protected:
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// SMILType Methods
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// -------------------
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void Init(SMILValue& aValue) const override;
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void Destroy(SMILValue&) const override;
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nsresult Assign(SMILValue& aDest, const SMILValue& aSrc) const override;
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bool IsEqual(const SMILValue& aLeft, const SMILValue& aRight) const override;
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nsresult Add(SMILValue& aDest, const SMILValue& aValueToAdd,
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uint32_t aCount) const override;
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nsresult ComputeDistance(const SMILValue& aFrom, const SMILValue& aTo,
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double& aDistance) const override;
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nsresult Interpolate(const SMILValue& aStartVal, const SMILValue& aEndVal,
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double aUnitDistance, SMILValue& aResult) const override;
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private:
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// Private constructor: prevent instances beyond my singleton.
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constexpr SVGOrientSMILType() = default;
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};
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} // namespace mozilla
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#endif // DOM_SVG_SVGORIENTSMILTYPE_H_
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