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// 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_KEYFRAMED_ANIMATION_CURVE_H_
#define CC_KEYFRAMED_ANIMATION_CURVE_H_
#include "cc/animation_curve.h"
#include "cc/cc_export.h"
#include "cc/scoped_ptr_vector.h"
#include "cc/timing_function.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebTransformOperations.h"
namespace cc {
class CC_EXPORT Keyframe {
public:
double time() const;
const TimingFunction* timingFunction() const;
protected:
Keyframe(double time, scoped_ptr<TimingFunction>);
virtual ~Keyframe();
private:
double m_time;
scoped_ptr<TimingFunction> m_timingFunction;
DISALLOW_COPY_AND_ASSIGN(Keyframe);
};
class CC_EXPORT FloatKeyframe : public Keyframe {
public:
static scoped_ptr<FloatKeyframe> create(double time, float value, scoped_ptr<TimingFunction>);
virtual ~FloatKeyframe();
float value() const;
scoped_ptr<FloatKeyframe> clone() const;
private:
FloatKeyframe(double time, float value, scoped_ptr<TimingFunction>);
float m_value;
};
class CC_EXPORT TransformKeyframe : public Keyframe {
public:
static scoped_ptr<TransformKeyframe> create(double time, const WebKit::WebTransformOperations& value, scoped_ptr<TimingFunction>);
virtual ~TransformKeyframe();
const WebKit::WebTransformOperations& value() const;
scoped_ptr<TransformKeyframe> clone() const;
private:
TransformKeyframe(double time, const WebKit::WebTransformOperations& value, scoped_ptr<TimingFunction>);
WebKit::WebTransformOperations m_value;
};
class CC_EXPORT KeyframedFloatAnimationCurve : public FloatAnimationCurve {
public:
// It is required that the keyframes be sorted by time.
static scoped_ptr<KeyframedFloatAnimationCurve> create();
virtual ~KeyframedFloatAnimationCurve();
void addKeyframe(scoped_ptr<FloatKeyframe>);
// AnimationCurve implementation
virtual double duration() const OVERRIDE;
virtual scoped_ptr<AnimationCurve> clone() const OVERRIDE;
// FloatAnimationCurve implementation
virtual float getValue(double t) const OVERRIDE;
private:
KeyframedFloatAnimationCurve();
// Always sorted in order of increasing time. No two keyframes have the
// same time.
ScopedPtrVector<FloatKeyframe> m_keyframes;
DISALLOW_COPY_AND_ASSIGN(KeyframedFloatAnimationCurve);
};
class CC_EXPORT KeyframedTransformAnimationCurve : public TransformAnimationCurve {
public:
// It is required that the keyframes be sorted by time.
static scoped_ptr<KeyframedTransformAnimationCurve> create();
virtual ~KeyframedTransformAnimationCurve();
void addKeyframe(scoped_ptr<TransformKeyframe>);
// AnimationCurve implementation
virtual double duration() const OVERRIDE;
virtual scoped_ptr<AnimationCurve> clone() const OVERRIDE;
// TransformAnimationCurve implementation
virtual WebKit::WebTransformationMatrix getValue(double t) const OVERRIDE;
private:
KeyframedTransformAnimationCurve();
// Always sorted in order of increasing time. No two keyframes have the
// same time.
ScopedPtrVector<TransformKeyframe> m_keyframes;
DISALLOW_COPY_AND_ASSIGN(KeyframedTransformAnimationCurve);
};
} // namespace cc
#endif // CC_KEYFRAMED_ANIMATION_CURVE_H_
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