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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CCAnimationCurve_h | 5 #ifndef CCAnimationCurve_h |
6 #define CCAnimationCurve_h | 6 #define CCAnimationCurve_h |
7 | 7 |
8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
| 9 #include "cc/cc_export.h" |
9 #include <public/WebTransformationMatrix.h> | 10 #include <public/WebTransformationMatrix.h> |
10 | 11 |
11 namespace cc { | 12 namespace cc { |
12 | 13 |
13 class FloatAnimationCurve; | 14 class FloatAnimationCurve; |
14 class TransformAnimationCurve; | 15 class TransformAnimationCurve; |
15 class TransformOperations; | 16 class TransformOperations; |
16 | 17 |
17 // An animation curve is a function that returns a value given a time. | 18 // An animation curve is a function that returns a value given a time. |
18 // There are currently only two types of curve, float and transform. | 19 // There are currently only two types of curve, float and transform. |
19 class AnimationCurve { | 20 class CC_EXPORT AnimationCurve { |
20 public: | 21 public: |
21 enum Type { Float, Transform }; | 22 enum Type { Float, Transform }; |
22 | 23 |
23 virtual ~AnimationCurve() { } | 24 virtual ~AnimationCurve() { } |
24 | 25 |
25 virtual double duration() const = 0; | 26 virtual double duration() const = 0; |
26 virtual Type type() const = 0; | 27 virtual Type type() const = 0; |
27 virtual scoped_ptr<AnimationCurve> clone() const = 0; | 28 virtual scoped_ptr<AnimationCurve> clone() const = 0; |
28 | 29 |
29 const FloatAnimationCurve* toFloatAnimationCurve() const; | 30 const FloatAnimationCurve* toFloatAnimationCurve() const; |
30 const TransformAnimationCurve* toTransformAnimationCurve() const; | 31 const TransformAnimationCurve* toTransformAnimationCurve() const; |
31 }; | 32 }; |
32 | 33 |
33 class FloatAnimationCurve : public AnimationCurve { | 34 class CC_EXPORT FloatAnimationCurve : public AnimationCurve { |
34 public: | 35 public: |
35 virtual ~FloatAnimationCurve() { } | 36 virtual ~FloatAnimationCurve() { } |
36 | 37 |
37 virtual float getValue(double t) const = 0; | 38 virtual float getValue(double t) const = 0; |
38 | 39 |
39 // Partial Animation implementation. | 40 // Partial Animation implementation. |
40 virtual Type type() const OVERRIDE; | 41 virtual Type type() const OVERRIDE; |
41 }; | 42 }; |
42 | 43 |
43 class TransformAnimationCurve : public AnimationCurve { | 44 class CC_EXPORT TransformAnimationCurve : public AnimationCurve { |
44 public: | 45 public: |
45 virtual ~TransformAnimationCurve() { } | 46 virtual ~TransformAnimationCurve() { } |
46 | 47 |
47 virtual WebKit::WebTransformationMatrix getValue(double t) const = 0; | 48 virtual WebKit::WebTransformationMatrix getValue(double t) const = 0; |
48 | 49 |
49 // Partial Animation implementation. | 50 // Partial Animation implementation. |
50 virtual Type type() const OVERRIDE; | 51 virtual Type type() const OVERRIDE; |
51 }; | 52 }; |
52 | 53 |
53 } // namespace cc | 54 } // namespace cc |
54 | 55 |
55 #endif // CCAnimation_h | 56 #endif // CCAnimation_h |
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