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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_ANIMATION_KEYFRAMED_ANIMATION_CURVE_H_
#define CC_ANIMATION_KEYFRAMED_ANIMATION_CURVE_H_
#include "cc/animation/animation_curve.h"
#include "cc/animation/timing_function.h"
#include "cc/animation/transform_operations.h"
#include "cc/base/cc_export.h"
#include "cc/base/scoped_ptr_vector.h"
namespace cc {
class CC_EXPORT Keyframe {
public:
double Time() const;
const TimingFunction* timing_function() const {
return timing_function_.get();
}
protected:
Keyframe(double time, scoped_ptr<TimingFunction> timing_function);
virtual ~Keyframe();
private:
double time_;
scoped_ptr<TimingFunction> timing_function_;
DISALLOW_COPY_AND_ASSIGN(Keyframe);
};
class CC_EXPORT FloatKeyframe : public Keyframe {
public:
static scoped_ptr<FloatKeyframe> Create(
double time,
float value,
scoped_ptr<TimingFunction> timing_function);
virtual ~FloatKeyframe();
float Value() const;
scoped_ptr<FloatKeyframe> Clone() const;
private:
FloatKeyframe(double time,
float value,
scoped_ptr<TimingFunction> timing_function);
float value_;
};
class CC_EXPORT TransformKeyframe : public Keyframe {
public:
static scoped_ptr<TransformKeyframe> Create(
double time,
const TransformOperations& value,
scoped_ptr<TimingFunction> timing_function);
virtual ~TransformKeyframe();
const TransformOperations& Value() const;
scoped_ptr<TransformKeyframe> Clone() const;
private:
TransformKeyframe(
double time,
const TransformOperations& value,
scoped_ptr<TimingFunction> timing_function);
TransformOperations 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> keyframe);
// 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> 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> keyframe);
// AnimationCurve implementation
virtual double Duration() const OVERRIDE;
virtual scoped_ptr<AnimationCurve> Clone() const OVERRIDE;
// TransformAnimationCurve implementation
virtual gfx::Transform GetValue(double t) const OVERRIDE;
private:
KeyframedTransformAnimationCurve();
// Always sorted in order of increasing time. No two keyframes have the
// same time.
ScopedPtrVector<TransformKeyframe> keyframes_;
DISALLOW_COPY_AND_ASSIGN(KeyframedTransformAnimationCurve);
};
} // namespace cc
#endif // CC_ANIMATION_KEYFRAMED_ANIMATION_CURVE_H_
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