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Side by Side Diff: cc/CCKeyframedAnimationCurve.cpp

Issue 11122003: [cc] Rename all cc/ filenames to Chromium style (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 8 years, 2 months ago
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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
3 // found in the LICENSE file.
4
5 #include "config.h"
6
7 #include "CCKeyframedAnimationCurve.h"
8
9 using WebKit::WebTransformationMatrix;
10
11 namespace cc {
12
13 namespace {
14
15 template <class Keyframe>
16 void insertKeyframe(scoped_ptr<Keyframe> keyframe, ScopedPtrVector<Keyframe>& ke yframes)
17 {
18 // Usually, the keyframes will be added in order, so this loop would be unne cessary and
19 // we should skip it if possible.
20 if (!keyframes.isEmpty() && keyframe->time() < keyframes.last()->time()) {
21 for (size_t i = 0; i < keyframes.size(); ++i) {
22 if (keyframe->time() < keyframes[i]->time()) {
23 keyframes.insert(i, keyframe.Pass());
24 return;
25 }
26 }
27 }
28
29 keyframes.append(keyframe.Pass());
30 }
31
32 scoped_ptr<CCTimingFunction> cloneTimingFunction(const CCTimingFunction* timingF unction)
33 {
34 ASSERT(timingFunction);
35 scoped_ptr<CCAnimationCurve> curve(timingFunction->clone());
36 return scoped_ptr<CCTimingFunction>(static_cast<CCTimingFunction*>(curve.rel ease()));
37 }
38
39 } // namespace
40
41 CCKeyframe::CCKeyframe(double time, scoped_ptr<CCTimingFunction> timingFunction)
42 : m_time(time)
43 , m_timingFunction(timingFunction.Pass())
44 {
45 }
46
47 CCKeyframe::~CCKeyframe()
48 {
49 }
50
51 double CCKeyframe::time() const
52 {
53 return m_time;
54 }
55
56 const CCTimingFunction* CCKeyframe::timingFunction() const
57 {
58 return m_timingFunction.get();
59 }
60
61 scoped_ptr<CCFloatKeyframe> CCFloatKeyframe::create(double time, float value, sc oped_ptr<CCTimingFunction> timingFunction)
62 {
63 return make_scoped_ptr(new CCFloatKeyframe(time, value, timingFunction.Pass( )));
64 }
65
66 CCFloatKeyframe::CCFloatKeyframe(double time, float value, scoped_ptr<CCTimingFu nction> timingFunction)
67 : CCKeyframe(time, timingFunction.Pass())
68 , m_value(value)
69 {
70 }
71
72 CCFloatKeyframe::~CCFloatKeyframe()
73 {
74 }
75
76 float CCFloatKeyframe::value() const
77 {
78 return m_value;
79 }
80
81 scoped_ptr<CCFloatKeyframe> CCFloatKeyframe::clone() const
82 {
83 scoped_ptr<CCTimingFunction> func;
84 if (timingFunction())
85 func = cloneTimingFunction(timingFunction());
86 return CCFloatKeyframe::create(time(), value(), func.Pass());
87 }
88
89 scoped_ptr<CCTransformKeyframe> CCTransformKeyframe::create(double time, const W ebKit::WebTransformOperations& value, scoped_ptr<CCTimingFunction> timingFunctio n)
90 {
91 return make_scoped_ptr(new CCTransformKeyframe(time, value, timingFunction.P ass()));
92 }
93
94 CCTransformKeyframe::CCTransformKeyframe(double time, const WebKit::WebTransform Operations& value, scoped_ptr<CCTimingFunction> timingFunction)
95 : CCKeyframe(time, timingFunction.Pass())
96 , m_value(value)
97 {
98 }
99
100 CCTransformKeyframe::~CCTransformKeyframe()
101 {
102 }
103
104 const WebKit::WebTransformOperations& CCTransformKeyframe::value() const
105 {
106 return m_value;
107 }
108
109 scoped_ptr<CCTransformKeyframe> CCTransformKeyframe::clone() const
110 {
111 scoped_ptr<CCTimingFunction> func;
112 if (timingFunction())
113 func = cloneTimingFunction(timingFunction());
114 return CCTransformKeyframe::create(time(), value(), func.Pass());
115 }
116
117 scoped_ptr<CCKeyframedFloatAnimationCurve> CCKeyframedFloatAnimationCurve::creat e()
118 {
119 return make_scoped_ptr(new CCKeyframedFloatAnimationCurve);
120 }
121
122 CCKeyframedFloatAnimationCurve::CCKeyframedFloatAnimationCurve()
123 {
124 }
125
126 CCKeyframedFloatAnimationCurve::~CCKeyframedFloatAnimationCurve()
127 {
128 }
129
130 void CCKeyframedFloatAnimationCurve::addKeyframe(scoped_ptr<CCFloatKeyframe> key frame)
131 {
132 insertKeyframe(keyframe.Pass(), m_keyframes);
133 }
134
135 double CCKeyframedFloatAnimationCurve::duration() const
136 {
137 return m_keyframes.last()->time() - m_keyframes.first()->time();
138 }
139
140 scoped_ptr<CCAnimationCurve> CCKeyframedFloatAnimationCurve::clone() const
141 {
142 scoped_ptr<CCKeyframedFloatAnimationCurve> toReturn(CCKeyframedFloatAnimatio nCurve::create());
143 for (size_t i = 0; i < m_keyframes.size(); ++i)
144 toReturn->addKeyframe(m_keyframes[i]->clone());
145 return toReturn.PassAs<CCAnimationCurve>();
146 }
147
148 float CCKeyframedFloatAnimationCurve::getValue(double t) const
149 {
150 if (t <= m_keyframes.first()->time())
151 return m_keyframes.first()->value();
152
153 if (t >= m_keyframes.last()->time())
154 return m_keyframes.last()->value();
155
156 size_t i = 0;
157 for (; i < m_keyframes.size() - 1; ++i) {
158 if (t < m_keyframes[i+1]->time())
159 break;
160 }
161
162 float progress = static_cast<float>((t - m_keyframes[i]->time()) / (m_keyfra mes[i+1]->time() - m_keyframes[i]->time()));
163
164 if (m_keyframes[i]->timingFunction())
165 progress = m_keyframes[i]->timingFunction()->getValue(progress);
166
167 return m_keyframes[i]->value() + (m_keyframes[i+1]->value() - m_keyframes[i] ->value()) * progress;
168 }
169
170 scoped_ptr<CCKeyframedTransformAnimationCurve> CCKeyframedTransformAnimationCurv e::create()
171 {
172 return make_scoped_ptr(new CCKeyframedTransformAnimationCurve);
173 }
174
175 CCKeyframedTransformAnimationCurve::CCKeyframedTransformAnimationCurve()
176 {
177 }
178
179 CCKeyframedTransformAnimationCurve::~CCKeyframedTransformAnimationCurve()
180 {
181 }
182
183 void CCKeyframedTransformAnimationCurve::addKeyframe(scoped_ptr<CCTransformKeyfr ame> keyframe)
184 {
185 insertKeyframe(keyframe.Pass(), m_keyframes);
186 }
187
188 double CCKeyframedTransformAnimationCurve::duration() const
189 {
190 return m_keyframes.last()->time() - m_keyframes.first()->time();
191 }
192
193 scoped_ptr<CCAnimationCurve> CCKeyframedTransformAnimationCurve::clone() const
194 {
195 scoped_ptr<CCKeyframedTransformAnimationCurve> toReturn(CCKeyframedTransform AnimationCurve::create());
196 for (size_t i = 0; i < m_keyframes.size(); ++i)
197 toReturn->addKeyframe(m_keyframes[i]->clone());
198 return toReturn.PassAs<CCAnimationCurve>();
199 }
200
201 WebTransformationMatrix CCKeyframedTransformAnimationCurve::getValue(double t) c onst
202 {
203 if (t <= m_keyframes.first()->time())
204 return m_keyframes.first()->value().apply();
205
206 if (t >= m_keyframes.last()->time())
207 return m_keyframes.last()->value().apply();
208
209 size_t i = 0;
210 for (; i < m_keyframes.size() - 1; ++i) {
211 if (t < m_keyframes[i+1]->time())
212 break;
213 }
214
215 double progress = (t - m_keyframes[i]->time()) / (m_keyframes[i+1]->time() - m_keyframes[i]->time());
216
217 if (m_keyframes[i]->timingFunction())
218 progress = m_keyframes[i]->timingFunction()->getValue(progress);
219
220 return m_keyframes[i+1]->value().blend(m_keyframes[i]->value(), progress);
221 }
222
223 } // namespace cc
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