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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 IntSize; | 16 class IntSize; |
16 class TransformOperations; | 17 class TransformOperations; |
17 | 18 |
18 // An animation curve is a function that returns a value given a time. | 19 // An animation curve is a function that returns a value given a time. |
19 // There are currently only two types of curve, float and transform. | 20 // There are currently only two types of curve, float and transform. |
20 class AnimationCurve { | 21 class CC_EXPORT AnimationCurve { |
21 public: | 22 public: |
22 enum Type { Float, Transform }; | 23 enum Type { Float, Transform }; |
23 | 24 |
24 virtual ~AnimationCurve() { } | 25 virtual ~AnimationCurve() { } |
25 | 26 |
26 virtual double duration() const = 0; | 27 virtual double duration() const = 0; |
27 virtual Type type() const = 0; | 28 virtual Type type() const = 0; |
28 virtual scoped_ptr<AnimationCurve> clone() const = 0; | 29 virtual scoped_ptr<AnimationCurve> clone() const = 0; |
29 | 30 |
30 const FloatAnimationCurve* toFloatAnimationCurve() const; | 31 const FloatAnimationCurve* toFloatAnimationCurve() const; |
31 const TransformAnimationCurve* toTransformAnimationCurve() const; | 32 const TransformAnimationCurve* toTransformAnimationCurve() const; |
32 }; | 33 }; |
33 | 34 |
34 class FloatAnimationCurve : public AnimationCurve { | 35 class CC_EXPORT FloatAnimationCurve : public AnimationCurve { |
35 public: | 36 public: |
36 virtual ~FloatAnimationCurve() { } | 37 virtual ~FloatAnimationCurve() { } |
37 | 38 |
38 virtual float getValue(double t) const = 0; | 39 virtual float getValue(double t) const = 0; |
39 | 40 |
40 // Partial Animation implementation. | 41 // Partial Animation implementation. |
41 virtual Type type() const OVERRIDE; | 42 virtual Type type() const OVERRIDE; |
42 }; | 43 }; |
43 | 44 |
44 class TransformAnimationCurve : public AnimationCurve { | 45 class CC_EXPORT TransformAnimationCurve : public AnimationCurve { |
45 public: | 46 public: |
46 virtual ~TransformAnimationCurve() { } | 47 virtual ~TransformAnimationCurve() { } |
47 | 48 |
48 virtual WebKit::WebTransformationMatrix getValue(double t) const = 0; | 49 virtual WebKit::WebTransformationMatrix getValue(double t) const = 0; |
49 | 50 |
50 // Partial Animation implementation. | 51 // Partial Animation implementation. |
51 virtual Type type() const OVERRIDE; | 52 virtual Type type() const OVERRIDE; |
52 }; | 53 }; |
53 | 54 |
54 } // namespace cc | 55 } // namespace cc |
55 | 56 |
56 #endif // CCAnimation_h | 57 #endif // CCAnimation_h |
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