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Side by Side Diff: cc/animation/animation_curve.h

Issue 2506093003: CC Animation: Make cc/animation an independent GN component. (Closed)
Patch Set: Rebase. Created 4 years, 1 month ago
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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 26
27 // An animation curve is a function that returns a value given a time. 27 // An animation curve is a function that returns a value given a time.
28 class CC_EXPORT AnimationCurve { 28 class CC_ANIMATION_EXPORT AnimationCurve {
29 public: 29 public:
30 enum CurveType { COLOR, FLOAT, TRANSFORM, FILTER, SCROLL_OFFSET }; 30 enum CurveType { COLOR, FLOAT, TRANSFORM, FILTER, SCROLL_OFFSET };
31 31
32 virtual ~AnimationCurve() {} 32 virtual ~AnimationCurve() {}
33 33
34 virtual base::TimeDelta Duration() const = 0; 34 virtual base::TimeDelta Duration() const = 0;
35 virtual CurveType Type() const = 0; 35 virtual CurveType Type() const = 0;
36 virtual std::unique_ptr<AnimationCurve> Clone() const = 0; 36 virtual std::unique_ptr<AnimationCurve> Clone() const = 0;
37 37
38 const ColorAnimationCurve* ToColorAnimationCurve() const; 38 const ColorAnimationCurve* ToColorAnimationCurve() const;
39 const FloatAnimationCurve* ToFloatAnimationCurve() const; 39 const FloatAnimationCurve* ToFloatAnimationCurve() const;
40 const TransformAnimationCurve* ToTransformAnimationCurve() const; 40 const TransformAnimationCurve* ToTransformAnimationCurve() const;
41 const FilterAnimationCurve* ToFilterAnimationCurve() const; 41 const FilterAnimationCurve* ToFilterAnimationCurve() const;
42 const ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve() const; 42 const ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve() const;
43 43
44 ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve(); 44 ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve();
45 }; 45 };
46 46
47 class CC_EXPORT ColorAnimationCurve : public AnimationCurve { 47 class CC_ANIMATION_EXPORT ColorAnimationCurve : public AnimationCurve {
48 public: 48 public:
49 ~ColorAnimationCurve() override {} 49 ~ColorAnimationCurve() override {}
50 50
51 virtual SkColor GetValue(base::TimeDelta t) const = 0; 51 virtual SkColor GetValue(base::TimeDelta t) const = 0;
52 52
53 // Partial Animation implementation. 53 // Partial Animation implementation.
54 CurveType Type() const override; 54 CurveType Type() const override;
55 }; 55 };
56 56
57 class CC_EXPORT FloatAnimationCurve : public AnimationCurve { 57 class CC_ANIMATION_EXPORT FloatAnimationCurve : public AnimationCurve {
58 public: 58 public:
59 ~FloatAnimationCurve() override {} 59 ~FloatAnimationCurve() override {}
60 60
61 virtual float GetValue(base::TimeDelta t) const = 0; 61 virtual float GetValue(base::TimeDelta t) const = 0;
62 62
63 // Partial Animation implementation. 63 // Partial Animation implementation.
64 CurveType Type() const override; 64 CurveType Type() const override;
65 }; 65 };
66 66
67 class CC_EXPORT TransformAnimationCurve : public AnimationCurve { 67 class CC_ANIMATION_EXPORT TransformAnimationCurve : public AnimationCurve {
68 public: 68 public:
69 ~TransformAnimationCurve() override {} 69 ~TransformAnimationCurve() override {}
70 70
71 virtual gfx::Transform GetValue(base::TimeDelta t) const = 0; 71 virtual gfx::Transform GetValue(base::TimeDelta t) const = 0;
72 72
73 // Sets |bounds| to be the bounding box for the region within which |box| 73 // Sets |bounds| to be the bounding box for the region within which |box|
74 // will move during this animation. If this region cannot be computed, 74 // will move during this animation. If this region cannot be computed,
75 // returns false. 75 // returns false.
76 virtual bool AnimatedBoundsForBox(const gfx::BoxF& box, 76 virtual bool AnimatedBoundsForBox(const gfx::BoxF& box,
77 gfx::BoxF* bounds) const = 0; 77 gfx::BoxF* bounds) const = 0;
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91 // |forward_direction| is true, the animation curve assumes it plays from 91 // |forward_direction| is true, the animation curve assumes it plays from
92 // the first keyframe to the last, otherwise it assumes the opposite. Returns 92 // the first keyframe to the last, otherwise it assumes the opposite. Returns
93 // false if the maximum scale cannot be computed. 93 // false if the maximum scale cannot be computed.
94 virtual bool MaximumTargetScale(bool forward_direction, 94 virtual bool MaximumTargetScale(bool forward_direction,
95 float* max_scale) const = 0; 95 float* max_scale) const = 0;
96 96
97 // Partial Animation implementation. 97 // Partial Animation implementation.
98 CurveType Type() const override; 98 CurveType Type() const override;
99 }; 99 };
100 100
101 class CC_EXPORT FilterAnimationCurve : public AnimationCurve { 101 class CC_ANIMATION_EXPORT FilterAnimationCurve : public AnimationCurve {
102 public: 102 public:
103 ~FilterAnimationCurve() override {} 103 ~FilterAnimationCurve() override {}
104 104
105 virtual FilterOperations GetValue(base::TimeDelta t) const = 0; 105 virtual FilterOperations GetValue(base::TimeDelta t) const = 0;
106 virtual bool HasFilterThatMovesPixels() const = 0; 106 virtual bool HasFilterThatMovesPixels() const = 0;
107 107
108 // Partial Animation implementation. 108 // Partial Animation implementation.
109 CurveType Type() const override; 109 CurveType Type() const override;
110 }; 110 };
111 111
112 } // namespace cc 112 } // namespace cc
113 113
114 #endif // CC_ANIMATION_ANIMATION_CURVE_H_ 114 #endif // CC_ANIMATION_ANIMATION_CURVE_H_
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