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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /dom/svg/SVGMotionSMILType.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/svg/SVGMotionSMILType.h')
-rw-r--r-- | dom/svg/SVGMotionSMILType.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/dom/svg/SVGMotionSMILType.h b/dom/svg/SVGMotionSMILType.h new file mode 100644 index 000000000..7529d796d --- /dev/null +++ b/dom/svg/SVGMotionSMILType.h @@ -0,0 +1,86 @@ +/* -*- 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/. */ + +/* implementation of nsISMILType for use by <animateMotion> element */ + +#ifndef MOZILLA_SVGMOTIONSMILTYPE_H_ +#define MOZILLA_SVGMOTIONSMILTYPE_H_ + +#include "mozilla/gfx/2D.h" +#include "mozilla/Attributes.h" +#include "nsISMILType.h" + +class nsSMILValue; + +namespace mozilla { + +namespace gfx { +class Matrix; +} // namespace gfx + +/** + * MotionRotateType: Enum to indicate the type of our "rotate" attribute. + */ +enum RotateType { + eRotateType_Explicit, // for e.g. rotate="45"/"45deg"/"0.785rad" + eRotateType_Auto, // for rotate="auto" + eRotateType_AutoReverse // for rotate="auto-reverse" +}; + +/** + * SVGMotionSMILType: Implements the nsISMILType interface for SMIL animations + * from <animateMotion>. + * + * NOTE: Even though there's technically no "motion" attribute, we behave in + * many ways as if there were, for simplicity. + */ +class SVGMotionSMILType : public nsISMILType +{ + typedef mozilla::gfx::Path Path; + +public: + // Singleton for nsSMILValue objects to hold onto. + static SVGMotionSMILType sSingleton; + +protected: + // nsISMILType Methods + // ------------------- + virtual void Init(nsSMILValue& aValue) const override; + virtual void Destroy(nsSMILValue& aValue) 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 SandwichAdd(nsSMILValue& aDest, + const nsSMILValue& aValueToAdd) 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; +public: + // Used to generate a transform matrix from an <animateMotion> nsSMILValue. + static gfx::Matrix CreateMatrix(const nsSMILValue& aSMILVal); + + // Used to generate a nsSMILValue for the point at the given distance along + // the given path. + static nsSMILValue ConstructSMILValue(Path* aPath, + float aDist, + RotateType aRotateType, + float aRotateAngle); + +private: + // Private constructor: prevent instances beyond my singleton. + constexpr SVGMotionSMILType() {} +}; + +} // namespace mozilla + +#endif // MOZILLA_SVGMOTIONSMILTYPE_H_ |