| // Copyright 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CC_ANIMATION_TIMING_FUNCTION_H_ |
| #define CC_ANIMATION_TIMING_FUNCTION_H_ |
| |
| #include "cc/animation/animation_curve.h" |
| #include "cc/base/cc_export.h" |
| #include "third_party/skia/include/core/SkScalar.h" |
| |
| namespace cc { |
| |
| // See http://www.w3.org/TR/css3-transitions/. |
| class CC_EXPORT TimingFunction : public FloatAnimationCurve { |
| public: |
| virtual ~TimingFunction(); |
| |
| // Partial implementation of FloatAnimationCurve. |
| virtual double Duration() const OVERRIDE; |
| |
| // The smallest and largest values returned by GetValue for inputs in |
| // [0, 1]. |
| virtual void Range(float* min, float* max) const = 0; |
| |
| protected: |
| TimingFunction(); |
| |
| private: |
| DISALLOW_ASSIGN(TimingFunction); |
| }; |
| |
| class CC_EXPORT CubicBezierTimingFunction : public TimingFunction { |
| public: |
| static scoped_ptr<CubicBezierTimingFunction> Create(double x1, double y1, |
| double x2, double y2); |
| virtual ~CubicBezierTimingFunction(); |
| |
| // Partial implementation of FloatAnimationCurve. |
| virtual float GetValue(double time) const OVERRIDE; |
| virtual scoped_ptr<AnimationCurve> Clone() const OVERRIDE; |
| |
| virtual void Range(float* min, float* max) const OVERRIDE; |
| |
| protected: |
| CubicBezierTimingFunction(double x1, double y1, double x2, double y2); |
| |
| double x1_; |
| double y1_; |
| double x2_; |
| double y2_; |
| |
| private: |
| DISALLOW_ASSIGN(CubicBezierTimingFunction); |
| }; |
| |
| class CC_EXPORT EaseTimingFunction { |
| public: |
| static scoped_ptr<TimingFunction> Create(); |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(EaseTimingFunction); |
| }; |
| |
| class CC_EXPORT EaseInTimingFunction { |
| public: |
| static scoped_ptr<TimingFunction> Create(); |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(EaseInTimingFunction); |
| }; |
| |
| class CC_EXPORT EaseOutTimingFunction { |
| public: |
| static scoped_ptr<TimingFunction> Create(); |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(EaseOutTimingFunction); |
| }; |
| |
| class CC_EXPORT EaseInOutTimingFunction { |
| public: |
| static scoped_ptr<TimingFunction> Create(); |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(EaseInOutTimingFunction); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_ANIMATION_TIMING_FUNCTION_H_ |