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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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