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Side by Side Diff: cc/animation/timing_function.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_TIMING_FUNCTION_H_ 5 #ifndef CC_ANIMATION_TIMING_FUNCTION_H_
6 #define CC_ANIMATION_TIMING_FUNCTION_H_ 6 #define CC_ANIMATION_TIMING_FUNCTION_H_
7 7
8 #include <memory> 8 #include <memory>
9 9
10 #include "base/macros.h" 10 #include "base/macros.h"
11 #include "cc/base/cc_export.h" 11 #include "cc/animation/animation_export.h"
12 #include "ui/gfx/geometry/cubic_bezier.h" 12 #include "ui/gfx/geometry/cubic_bezier.h"
13 13
14 namespace cc { 14 namespace cc {
15 15
16 // See http://www.w3.org/TR/css3-transitions/. 16 // See http://www.w3.org/TR/css3-transitions/.
17 class CC_EXPORT TimingFunction { 17 class CC_ANIMATION_EXPORT TimingFunction {
18 public: 18 public:
19 virtual ~TimingFunction(); 19 virtual ~TimingFunction();
20 20
21 // Note that LINEAR is a nullptr TimingFunction (for now). 21 // Note that LINEAR is a nullptr TimingFunction (for now).
22 enum class Type { LINEAR, CUBIC_BEZIER, STEPS }; 22 enum class Type { LINEAR, CUBIC_BEZIER, STEPS };
23 23
24 virtual Type GetType() const = 0; 24 virtual Type GetType() const = 0;
25 virtual float GetValue(double t) const = 0; 25 virtual float GetValue(double t) const = 0;
26 virtual float Velocity(double time) const = 0; 26 virtual float Velocity(double time) const = 0;
27 // The smallest and largest values returned by GetValue for inputs in [0, 1]. 27 // The smallest and largest values returned by GetValue for inputs in [0, 1].
28 virtual void Range(float* min, float* max) const = 0; 28 virtual void Range(float* min, float* max) const = 0;
29 virtual std::unique_ptr<TimingFunction> Clone() const = 0; 29 virtual std::unique_ptr<TimingFunction> Clone() const = 0;
30 30
31 protected: 31 protected:
32 TimingFunction(); 32 TimingFunction();
33 33
34 DISALLOW_ASSIGN(TimingFunction); 34 DISALLOW_ASSIGN(TimingFunction);
35 }; 35 };
36 36
37 class CC_EXPORT CubicBezierTimingFunction : public TimingFunction { 37 class CC_ANIMATION_EXPORT CubicBezierTimingFunction : public TimingFunction {
38 public: 38 public:
39 enum class EaseType { EASE, EASE_IN, EASE_OUT, EASE_IN_OUT, CUSTOM }; 39 enum class EaseType { EASE, EASE_IN, EASE_OUT, EASE_IN_OUT, CUSTOM };
40 40
41 static std::unique_ptr<CubicBezierTimingFunction> CreatePreset( 41 static std::unique_ptr<CubicBezierTimingFunction> CreatePreset(
42 EaseType ease_type); 42 EaseType ease_type);
43 static std::unique_ptr<CubicBezierTimingFunction> Create(double x1, 43 static std::unique_ptr<CubicBezierTimingFunction> Create(double x1,
44 double y1, 44 double y1,
45 double x2, 45 double x2,
46 double y2); 46 double y2);
47 ~CubicBezierTimingFunction() override; 47 ~CubicBezierTimingFunction() override;
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62 double y1, 62 double y1,
63 double x2, 63 double x2,
64 double y2); 64 double y2);
65 65
66 gfx::CubicBezier bezier_; 66 gfx::CubicBezier bezier_;
67 EaseType ease_type_; 67 EaseType ease_type_;
68 68
69 DISALLOW_ASSIGN(CubicBezierTimingFunction); 69 DISALLOW_ASSIGN(CubicBezierTimingFunction);
70 }; 70 };
71 71
72 class CC_EXPORT StepsTimingFunction : public TimingFunction { 72 class CC_ANIMATION_EXPORT StepsTimingFunction : public TimingFunction {
73 public: 73 public:
74 // Web Animations specification, 3.12.4. Timing in discrete steps. 74 // Web Animations specification, 3.12.4. Timing in discrete steps.
75 enum class StepPosition { START, MIDDLE, END }; 75 enum class StepPosition { START, MIDDLE, END };
76 76
77 static std::unique_ptr<StepsTimingFunction> Create( 77 static std::unique_ptr<StepsTimingFunction> Create(
78 int steps, 78 int steps,
79 StepPosition step_position); 79 StepPosition step_position);
80 ~StepsTimingFunction() override; 80 ~StepsTimingFunction() override;
81 81
82 // TimingFunction implementation. 82 // TimingFunction implementation.
(...skipping 14 matching lines...) Expand all
97 97
98 int steps_; 98 int steps_;
99 StepPosition step_position_; 99 StepPosition step_position_;
100 100
101 DISALLOW_ASSIGN(StepsTimingFunction); 101 DISALLOW_ASSIGN(StepsTimingFunction);
102 }; 102 };
103 103
104 } // namespace cc 104 } // namespace cc
105 105
106 #endif // CC_ANIMATION_TIMING_FUNCTION_H_ 106 #endif // CC_ANIMATION_TIMING_FUNCTION_H_
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