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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 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 UI_GFX_INTERPOLATED_TRANSFORM_H_ | 5 #ifndef UI_GFX_INTERPOLATED_TRANSFORM_H_ |
6 #define UI_GFX_INTERPOLATED_TRANSFORM_H_ | 6 #define UI_GFX_INTERPOLATED_TRANSFORM_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 #include "ui/gfx/point.h" | 10 #include "ui/gfx/point.h" |
11 #include "ui/gfx/point3_f.h" | 11 #include "ui/gfx/point3_f.h" |
12 #include "ui/gfx/transform.h" | 12 #include "ui/gfx/transform.h" |
13 #include "ui/gfx/transform_util.h" | |
14 #include "ui/gfx/vector3d_f.h" | |
13 | 15 |
14 namespace ui { | 16 namespace ui { |
15 | 17 |
16 /////////////////////////////////////////////////////////////////////////////// | 18 /////////////////////////////////////////////////////////////////////////////// |
17 // class InterpolatedTransform | 19 // class InterpolatedTransform |
18 // | 20 // |
19 // Abstract base class for transforms that animate over time. These | 21 // Abstract base class for transforms that animate over time. These |
20 // interpolated transforms can be combined to allow for more sophisticated | 22 // interpolated transforms can be combined to allow for more sophisticated |
21 // animations. For example, you might combine a rotation of 90 degrees between | 23 // animations. For example, you might combine a rotation of 90 degrees between |
22 // times 0 and 1, with a scale from 1 to 0.3 between times 0 and 0.25 and a | 24 // times 0 and 1, with a scale from 1 to 0.3 between times 0 and 0.25 and a |
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39 // and our child's transform at time t (if we have one). | 41 // and our child's transform at time t (if we have one). |
40 // | 42 // |
41 // This function takes ownership of the passed InterpolatedTransform. | 43 // This function takes ownership of the passed InterpolatedTransform. |
42 void SetChild(InterpolatedTransform* child); | 44 void SetChild(InterpolatedTransform* child); |
43 | 45 |
44 // If the interpolated transform is reversed, Interpolate(t) will return | 46 // If the interpolated transform is reversed, Interpolate(t) will return |
45 // Interpolate(1 - t) | 47 // Interpolate(1 - t) |
46 void SetReversed(bool reversed) { reversed_ = reversed; } | 48 void SetReversed(bool reversed) { reversed_ = reversed; } |
47 bool Reversed() const { return reversed_; } | 49 bool Reversed() const { return reversed_; } |
48 | 50 |
49 // NOTE: this function is soon to be deprecated. | |
50 static bool FactorTRS(const gfx::Transform& transform, | |
51 gfx::Point* translation, | |
52 float* rotation, | |
53 gfx::Point3F* scale); | |
54 | |
55 protected: | 51 protected: |
56 // Calculates the interpolated transform without considering our child. | 52 // Calculates the interpolated transform without considering our child. |
57 virtual gfx::Transform InterpolateButDoNotCompose(float t) const = 0; | 53 virtual gfx::Transform InterpolateButDoNotCompose(float t) const = 0; |
58 | 54 |
59 // If time in (start_time_, end_time_], this function linearly interpolates | 55 // If time in (start_time_, end_time_], this function linearly interpolates |
60 // between start_value and end_value. More precisely it returns | 56 // between start_value and end_value. More precisely it returns |
61 // (1 - t) * start_value + t * end_value where | 57 // (1 - t) * start_value + t * end_value where |
62 // t = (start_time_ - time) / (end_time_ - start_time_). | 58 // t = (start_time_ - time) / (end_time_ - start_time_). |
63 // If time < start_time_ it returns start_value, and if time >= end_time_ | 59 // If time < start_time_ it returns start_value, and if time >= end_time_ |
64 // it returns end_value. | 60 // it returns end_value. |
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108 }; | 104 }; |
109 | 105 |
110 /////////////////////////////////////////////////////////////////////////////// | 106 /////////////////////////////////////////////////////////////////////////////// |
111 // class InterpolatedAxisAngleRotation | 107 // class InterpolatedAxisAngleRotation |
112 // | 108 // |
113 // Represents an animated rotation. | 109 // Represents an animated rotation. |
114 // | 110 // |
115 /////////////////////////////////////////////////////////////////////////////// | 111 /////////////////////////////////////////////////////////////////////////////// |
116 class UI_EXPORT InterpolatedAxisAngleRotation : public InterpolatedTransform { | 112 class UI_EXPORT InterpolatedAxisAngleRotation : public InterpolatedTransform { |
117 public: | 113 public: |
118 InterpolatedAxisAngleRotation(gfx::Point3F axis, | 114 InterpolatedAxisAngleRotation(gfx::Vector3dF axis, |
danakj
2012/11/16 19:46:12
const& to match ui/gfx style.
| |
119 float start_degrees, | 115 float start_degrees, |
120 float end_degrees); | 116 float end_degrees); |
121 InterpolatedAxisAngleRotation(gfx::Point3F axis, | 117 InterpolatedAxisAngleRotation(gfx::Vector3dF axis, |
danakj
2012/11/16 19:46:12
const&
| |
122 float start_degrees, | 118 float start_degrees, |
123 float end_degrees, | 119 float end_degrees, |
124 float start_time, | 120 float start_time, |
125 float end_time); | 121 float end_time); |
126 virtual ~InterpolatedAxisAngleRotation(); | 122 virtual ~InterpolatedAxisAngleRotation(); |
127 | 123 |
128 protected: | 124 protected: |
129 virtual gfx::Transform InterpolateButDoNotCompose(float t) const OVERRIDE; | 125 virtual gfx::Transform InterpolateButDoNotCompose(float t) const OVERRIDE; |
130 | 126 |
131 private: | 127 private: |
132 gfx::Point3F axis_; | 128 gfx::Vector3dF axis_; |
133 const float start_degrees_; | 129 const float start_degrees_; |
134 const float end_degrees_; | 130 const float end_degrees_; |
135 | 131 |
136 DISALLOW_COPY_AND_ASSIGN(InterpolatedAxisAngleRotation); | 132 DISALLOW_COPY_AND_ASSIGN(InterpolatedAxisAngleRotation); |
137 }; | 133 }; |
138 | 134 |
139 /////////////////////////////////////////////////////////////////////////////// | 135 /////////////////////////////////////////////////////////////////////////////// |
140 // class InterpolatedScale | 136 // class InterpolatedScale |
141 // | 137 // |
142 // Represents an animated scale. | 138 // Represents an animated scale. |
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233 virtual gfx::Transform InterpolateButDoNotCompose(float t) const OVERRIDE; | 229 virtual gfx::Transform InterpolateButDoNotCompose(float t) const OVERRIDE; |
234 | 230 |
235 private: | 231 private: |
236 void Init(const gfx::Point& pivot, InterpolatedTransform* transform); | 232 void Init(const gfx::Point& pivot, InterpolatedTransform* transform); |
237 | 233 |
238 scoped_ptr<InterpolatedTransform> transform_; | 234 scoped_ptr<InterpolatedTransform> transform_; |
239 | 235 |
240 DISALLOW_COPY_AND_ASSIGN(InterpolatedTransformAboutPivot); | 236 DISALLOW_COPY_AND_ASSIGN(InterpolatedTransformAboutPivot); |
241 }; | 237 }; |
242 | 238 |
243 class UI_EXPORT InterpolatedTRSTransform : public InterpolatedTransform { | 239 class UI_EXPORT InterpolatedMatrixTransform : public InterpolatedTransform { |
244 public: | 240 public: |
245 InterpolatedTRSTransform(const gfx::Transform& start_transform, | 241 InterpolatedMatrixTransform(const gfx::Transform& start_transform, |
246 const gfx::Transform& end_transform); | 242 const gfx::Transform& end_transform); |
247 | 243 |
248 InterpolatedTRSTransform(const gfx::Transform& start_transform, | 244 InterpolatedMatrixTransform(const gfx::Transform& start_transform, |
249 const gfx::Transform& end_transform, | 245 const gfx::Transform& end_transform, |
250 float start_time, | 246 float start_time, |
251 float end_time); | 247 float end_time); |
252 | 248 |
253 virtual ~InterpolatedTRSTransform(); | 249 virtual ~InterpolatedMatrixTransform(); |
254 | 250 |
255 protected: | 251 protected: |
256 virtual gfx::Transform InterpolateButDoNotCompose(float t) const OVERRIDE; | 252 virtual gfx::Transform InterpolateButDoNotCompose(float t) const OVERRIDE; |
257 | 253 |
258 private: | 254 private: |
259 void Init(const gfx::Transform& start_transform, | 255 void Init(const gfx::Transform& start_transform, |
260 const gfx::Transform& end_transform); | 256 const gfx::Transform& end_transform); |
261 | 257 |
262 scoped_ptr<InterpolatedTransform> transform_; | 258 gfx::DecomposedTransform start_decomp_; |
259 gfx::DecomposedTransform end_decomp_; | |
263 }; | 260 }; |
264 | 261 |
265 } // namespace ui | 262 } // namespace ui |
266 | 263 |
267 #endif // UI_GFX_INTERPOLATED_TRANSFORM_H_ | 264 #endif // UI_GFX_INTERPOLATED_TRANSFORM_H_ |
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