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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 CC_ANIMATION_ANIMATION_CURVE_H_ | 5 #ifndef CC_ANIMATION_ANIMATION_CURVE_H_ |
6 #define CC_ANIMATION_ANIMATION_CURVE_H_ | 6 #define CC_ANIMATION_ANIMATION_CURVE_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "base/time/time.h" | 10 #include "base/time/time.h" |
11 #include "cc/base/cc_export.h" | 11 #include "cc/animation/animation_export.h" |
12 #include "cc/output/filter_operations.h" | 12 #include "cc/output/filter_operations.h" |
13 #include "ui/gfx/transform.h" | 13 #include "ui/gfx/transform.h" |
14 | 14 |
15 namespace gfx { | 15 namespace gfx { |
16 class BoxF; | 16 class BoxF; |
17 } | 17 } |
18 | 18 |
19 namespace cc { | 19 namespace cc { |
20 | 20 |
21 class ColorAnimationCurve; | 21 class ColorAnimationCurve; |
22 class FilterAnimationCurve; | 22 class FilterAnimationCurve; |
23 class FloatAnimationCurve; | 23 class FloatAnimationCurve; |
24 class ScrollOffsetAnimationCurve; | 24 class ScrollOffsetAnimationCurve; |
25 class TransformAnimationCurve; | 25 class TransformAnimationCurve; |
26 class TransformOperations; | 26 class TransformOperations; |
27 | 27 |
28 // An animation curve is a function that returns a value given a time. | 28 // An animation curve is a function that returns a value given a time. |
29 class CC_EXPORT AnimationCurve { | 29 class CC_ANIMATION_EXPORT AnimationCurve { |
30 public: | 30 public: |
31 enum CurveType { COLOR, FLOAT, TRANSFORM, FILTER, SCROLL_OFFSET }; | 31 enum CurveType { COLOR, FLOAT, TRANSFORM, FILTER, SCROLL_OFFSET }; |
32 | 32 |
33 virtual ~AnimationCurve() {} | 33 virtual ~AnimationCurve() {} |
34 | 34 |
35 virtual base::TimeDelta Duration() const = 0; | 35 virtual base::TimeDelta Duration() const = 0; |
36 virtual CurveType Type() const = 0; | 36 virtual CurveType Type() const = 0; |
37 virtual std::unique_ptr<AnimationCurve> Clone() const = 0; | 37 virtual std::unique_ptr<AnimationCurve> Clone() const = 0; |
38 | 38 |
39 const ColorAnimationCurve* ToColorAnimationCurve() const; | 39 const ColorAnimationCurve* ToColorAnimationCurve() const; |
40 const FloatAnimationCurve* ToFloatAnimationCurve() const; | 40 const FloatAnimationCurve* ToFloatAnimationCurve() const; |
41 const TransformAnimationCurve* ToTransformAnimationCurve() const; | 41 const TransformAnimationCurve* ToTransformAnimationCurve() const; |
42 const FilterAnimationCurve* ToFilterAnimationCurve() const; | 42 const FilterAnimationCurve* ToFilterAnimationCurve() const; |
43 const ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve() const; | 43 const ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve() const; |
44 | 44 |
45 ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve(); | 45 ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve(); |
46 }; | 46 }; |
47 | 47 |
48 class CC_EXPORT ColorAnimationCurve : public AnimationCurve { | 48 class CC_ANIMATION_EXPORT ColorAnimationCurve : public AnimationCurve { |
49 public: | 49 public: |
50 ~ColorAnimationCurve() override {} | 50 ~ColorAnimationCurve() override {} |
51 | 51 |
52 virtual SkColor GetValue(base::TimeDelta t) const = 0; | 52 virtual SkColor GetValue(base::TimeDelta t) const = 0; |
53 | 53 |
54 // Partial Animation implementation. | 54 // Partial Animation implementation. |
55 CurveType Type() const override; | 55 CurveType Type() const override; |
56 }; | 56 }; |
57 | 57 |
58 class CC_EXPORT FloatAnimationCurve : public AnimationCurve { | 58 class CC_ANIMATION_EXPORT FloatAnimationCurve : public AnimationCurve { |
59 public: | 59 public: |
60 ~FloatAnimationCurve() override {} | 60 ~FloatAnimationCurve() override {} |
61 | 61 |
62 virtual float GetValue(base::TimeDelta t) const = 0; | 62 virtual float GetValue(base::TimeDelta t) const = 0; |
63 | 63 |
64 // Partial Animation implementation. | 64 // Partial Animation implementation. |
65 CurveType Type() const override; | 65 CurveType Type() const override; |
66 }; | 66 }; |
67 | 67 |
68 class CC_EXPORT TransformAnimationCurve : public AnimationCurve { | 68 class CC_ANIMATION_EXPORT TransformAnimationCurve : public AnimationCurve { |
69 public: | 69 public: |
70 ~TransformAnimationCurve() override {} | 70 ~TransformAnimationCurve() override {} |
71 | 71 |
72 virtual gfx::Transform GetValue(base::TimeDelta t) const = 0; | 72 virtual gfx::Transform GetValue(base::TimeDelta t) const = 0; |
73 | 73 |
74 // Sets |bounds| to be the bounding box for the region within which |box| | 74 // Sets |bounds| to be the bounding box for the region within which |box| |
75 // will move during this animation. If this region cannot be computed, | 75 // will move during this animation. If this region cannot be computed, |
76 // returns false. | 76 // returns false. |
77 virtual bool AnimatedBoundsForBox(const gfx::BoxF& box, | 77 virtual bool AnimatedBoundsForBox(const gfx::BoxF& box, |
78 gfx::BoxF* bounds) const = 0; | 78 gfx::BoxF* bounds) const = 0; |
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92 // |forward_direction| is true, the animation curve assumes it plays from | 92 // |forward_direction| is true, the animation curve assumes it plays from |
93 // the first keyframe to the last, otherwise it assumes the opposite. Returns | 93 // the first keyframe to the last, otherwise it assumes the opposite. Returns |
94 // false if the maximum scale cannot be computed. | 94 // false if the maximum scale cannot be computed. |
95 virtual bool MaximumTargetScale(bool forward_direction, | 95 virtual bool MaximumTargetScale(bool forward_direction, |
96 float* max_scale) const = 0; | 96 float* max_scale) const = 0; |
97 | 97 |
98 // Partial Animation implementation. | 98 // Partial Animation implementation. |
99 CurveType Type() const override; | 99 CurveType Type() const override; |
100 }; | 100 }; |
101 | 101 |
102 class CC_EXPORT FilterAnimationCurve : public AnimationCurve { | 102 class CC_ANIMATION_EXPORT FilterAnimationCurve : public AnimationCurve { |
103 public: | 103 public: |
104 ~FilterAnimationCurve() override {} | 104 ~FilterAnimationCurve() override {} |
105 | 105 |
106 virtual FilterOperations GetValue(base::TimeDelta t) const = 0; | 106 virtual FilterOperations GetValue(base::TimeDelta t) const = 0; |
107 virtual bool HasFilterThatMovesPixels() const = 0; | 107 virtual bool HasFilterThatMovesPixels() const = 0; |
108 | 108 |
109 // Partial Animation implementation. | 109 // Partial Animation implementation. |
110 CurveType Type() const override; | 110 CurveType Type() const override; |
111 }; | 111 }; |
112 | 112 |
113 } // namespace cc | 113 } // namespace cc |
114 | 114 |
115 #endif // CC_ANIMATION_ANIMATION_CURVE_H_ | 115 #endif // CC_ANIMATION_ANIMATION_CURVE_H_ |
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