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Diffstat (limited to 'dom/svg/SVGOrientSMILType.h')
-rw-r--r-- | dom/svg/SVGOrientSMILType.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/dom/svg/SVGOrientSMILType.h b/dom/svg/SVGOrientSMILType.h new file mode 100644 index 0000000000..01ca03251a --- /dev/null +++ b/dom/svg/SVGOrientSMILType.h @@ -0,0 +1,57 @@ +/* -*- 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 DOM_SVG_SVGORIENTSMILTYPE_H_ +#define DOM_SVG_SVGORIENTSMILTYPE_H_ + +#include "mozilla/Attributes.h" +#include "mozilla/SMILType.h" + +/** + * This SMILType class is a special case for the 'orient' attribute on SVG's + * 'marker' element. + * + * orient = "auto | auto-start-reverse | <angle>" + * + * Unusually, this attribute doesn't have just a single corresponding DOM + * property, but rather is split into two properties: 'orientType' (of type + * DOMSVGAnimatedEnumeration) and 'orientAngle' (of type DOMSVGAnimatedAngle). + * If 'orientType.animVal' is SVG_MARKER_ORIENT_ANGLE, then + * 'orientAngle.animVal' contains the angle that is being used. The lacuna + * value is 0. + */ + +namespace mozilla { + +class SMILValue; + +class SVGOrientSMILType : public SMILType { + public: + // Singleton for SMILValue objects to hold onto. + static SVGOrientSMILType sSingleton; + + protected: + // SMILType Methods + // ------------------- + void Init(SMILValue& aValue) const override; + void Destroy(SMILValue&) const override; + nsresult Assign(SMILValue& aDest, const SMILValue& aSrc) const override; + bool IsEqual(const SMILValue& aLeft, const SMILValue& aRight) const override; + nsresult Add(SMILValue& aDest, const SMILValue& aValueToAdd, + uint32_t aCount) const override; + nsresult ComputeDistance(const SMILValue& aFrom, const SMILValue& aTo, + double& aDistance) const override; + nsresult Interpolate(const SMILValue& aStartVal, const SMILValue& aEndVal, + double aUnitDistance, SMILValue& aResult) const override; + + private: + // Private constructor: prevent instances beyond my singleton. + constexpr SVGOrientSMILType() = default; +}; + +} // namespace mozilla + +#endif // DOM_SVG_SVGORIENTSMILTYPE_H_ |