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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 #include "config.h" | 5 #include "config.h" |
6 | 6 |
7 #include "CCTimingFunction.h" | 7 #include "CCTimingFunction.h" |
8 | 8 |
9 namespace { | 9 namespace { |
10 const double epsilon = 1e-6; | 10 const double epsilon = 1e-6; |
11 } // namespace | 11 } // namespace |
12 | 12 |
13 namespace cc { | 13 namespace cc { |
14 | 14 |
15 CCTimingFunction::CCTimingFunction() | 15 TimingFunction::TimingFunction() |
16 { | 16 { |
17 } | 17 } |
18 | 18 |
19 CCTimingFunction::~CCTimingFunction() | 19 TimingFunction::~TimingFunction() |
20 { | 20 { |
21 } | 21 } |
22 | 22 |
23 double CCTimingFunction::duration() const | 23 double TimingFunction::duration() const |
24 { | 24 { |
25 return 1.0; | 25 return 1.0; |
26 } | 26 } |
27 | 27 |
28 scoped_ptr<CCCubicBezierTimingFunction> CCCubicBezierTimingFunction::create(doub
le x1, double y1, double x2, double y2) | 28 scoped_ptr<CubicBezierTimingFunction> CubicBezierTimingFunction::create(double x
1, double y1, double x2, double y2) |
29 { | 29 { |
30 return make_scoped_ptr(new CCCubicBezierTimingFunction(x1, y1, x2, y2)); | 30 return make_scoped_ptr(new CubicBezierTimingFunction(x1, y1, x2, y2)); |
31 } | 31 } |
32 | 32 |
33 CCCubicBezierTimingFunction::CCCubicBezierTimingFunction(double x1, double y1, d
ouble x2, double y2) | 33 CubicBezierTimingFunction::CubicBezierTimingFunction(double x1, double y1, doubl
e x2, double y2) |
34 : m_curve(x1, y1, x2, y2) | 34 : m_curve(x1, y1, x2, y2) |
35 { | 35 { |
36 } | 36 } |
37 | 37 |
38 CCCubicBezierTimingFunction::~CCCubicBezierTimingFunction() | 38 CubicBezierTimingFunction::~CubicBezierTimingFunction() |
39 { | 39 { |
40 } | 40 } |
41 | 41 |
42 float CCCubicBezierTimingFunction::getValue(double x) const | 42 float CubicBezierTimingFunction::getValue(double x) const |
43 { | 43 { |
44 UnitBezier temp(m_curve); | 44 UnitBezier temp(m_curve); |
45 return static_cast<float>(temp.solve(x, epsilon)); | 45 return static_cast<float>(temp.solve(x, epsilon)); |
46 } | 46 } |
47 | 47 |
48 scoped_ptr<CCAnimationCurve> CCCubicBezierTimingFunction::clone() const | 48 scoped_ptr<AnimationCurve> CubicBezierTimingFunction::clone() const |
49 { | 49 { |
50 return make_scoped_ptr(new CCCubicBezierTimingFunction(*this)).PassAs<CCAnim
ationCurve>(); | 50 return make_scoped_ptr(new CubicBezierTimingFunction(*this)).PassAs<Animatio
nCurve>(); |
51 } | 51 } |
52 | 52 |
53 // These numbers come from http://www.w3.org/TR/css3-transitions/#transition-tim
ing-function_tag. | 53 // These numbers come from http://www.w3.org/TR/css3-transitions/#transition-tim
ing-function_tag. |
54 scoped_ptr<CCTimingFunction> CCEaseTimingFunction::create() | 54 scoped_ptr<TimingFunction> EaseTimingFunction::create() |
55 { | 55 { |
56 return CCCubicBezierTimingFunction::create(0.25, 0.1, 0.25, 1).PassAs<CCTimi
ngFunction>(); | 56 return CubicBezierTimingFunction::create(0.25, 0.1, 0.25, 1).PassAs<TimingFu
nction>(); |
57 } | 57 } |
58 | 58 |
59 scoped_ptr<CCTimingFunction> CCEaseInTimingFunction::create() | 59 scoped_ptr<TimingFunction> EaseInTimingFunction::create() |
60 { | 60 { |
61 return CCCubicBezierTimingFunction::create(0.42, 0, 1.0, 1).PassAs<CCTimingF
unction>(); | 61 return CubicBezierTimingFunction::create(0.42, 0, 1.0, 1).PassAs<TimingFunct
ion>(); |
62 } | 62 } |
63 | 63 |
64 scoped_ptr<CCTimingFunction> CCEaseOutTimingFunction::create() | 64 scoped_ptr<TimingFunction> EaseOutTimingFunction::create() |
65 { | 65 { |
66 return CCCubicBezierTimingFunction::create(0, 0, 0.58, 1).PassAs<CCTimingFun
ction>(); | 66 return CubicBezierTimingFunction::create(0, 0, 0.58, 1).PassAs<TimingFunctio
n>(); |
67 } | 67 } |
68 | 68 |
69 scoped_ptr<CCTimingFunction> CCEaseInOutTimingFunction::create() | 69 scoped_ptr<TimingFunction> EaseInOutTimingFunction::create() |
70 { | 70 { |
71 return CCCubicBezierTimingFunction::create(0.42, 0, 0.58, 1).PassAs<CCTiming
Function>(); | 71 return CubicBezierTimingFunction::create(0.42, 0, 0.58, 1).PassAs<TimingFunc
tion>(); |
72 } | 72 } |
73 | 73 |
74 } // namespace cc | 74 } // namespace cc |
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