/* -*- 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 MOZILLA_SVGORIENTSMILTYPE_H_ #define MOZILLA_SVGORIENTSMILTYPE_H_ #include "mozilla/Attributes.h" #include "nsISMILType.h" class nsSMILValue; /** * This nsISMILType class is a special case for the 'orient' attribute on SVG's * 'marker' element. * * orient = "auto | auto-start-reverse | " * * Unusually, this attribute doesn't have just a single corresponding DOM * property, but rather is split into two properties: 'orientType' (of type * SVGAnimatedEnumeration) and 'orientAngle' (of type SVGAnimatedAngle). If * 'orientType.animVal' is SVG_MARKER_ORIENT_ANGLE, then * 'orientAngle.animVal' contains the angle that is being used. The lacuna * value is 0. * * The SVG 2 specification does not define a * SVG_MARKER_ORIENT_AUTO_START_REVERSE constant value for orientType to use; * instead, if the attribute is set to "auto-start-reverse", * SVG_MARKER_ORIENT_UNKNOWN is used. Internally, however, we do use a * constant with this name. */ namespace mozilla { class SVGOrientSMILType : public nsISMILType { public: // Singleton for nsSMILValue objects to hold onto. static SVGOrientSMILType sSingleton; protected: // nsISMILType Methods // ------------------- virtual void Init(nsSMILValue& aValue) const override; virtual void Destroy(nsSMILValue&) const override; virtual nsresult Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const override; virtual bool IsEqual(const nsSMILValue& aLeft, const nsSMILValue& aRight) const override; virtual nsresult Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd, uint32_t aCount) const override; virtual nsresult ComputeDistance(const nsSMILValue& aFrom, const nsSMILValue& aTo, double& aDistance) const override; virtual nsresult Interpolate(const nsSMILValue& aStartVal, const nsSMILValue& aEndVal, double aUnitDistance, nsSMILValue& aResult) const override; private: // Private constructor: prevent instances beyond my singleton. MOZ_CONSTEXPR SVGOrientSMILType() {} }; } // namespace mozilla #endif // MOZILLA_SVGORIENTSMILTYPE_H_