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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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_BOX_F_H_ | 5 #ifndef UI_GFX_BOX_F_H_ |
6 #define UI_GFX_BOX_F_H_ | 6 #define UI_GFX_BOX_F_H_ |
7 | 7 |
8 #include "ui/gfx/point3_f.h" | 8 #include "ui/gfx/point3_f.h" |
9 #include "ui/gfx/vector3d_f.h" | 9 #include "ui/gfx/vector3d_f.h" |
10 | 10 |
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87 | 87 |
88 void set_size(float width, float height, float depth) { | 88 void set_size(float width, float height, float depth) { |
89 width_ = width < 0 ? 0 : width; | 89 width_ = width < 0 ? 0 : width; |
90 height_ = height < 0 ? 0 : height; | 90 height_ = height < 0 ? 0 : height; |
91 depth_ = depth < 0 ? 0 : depth; | 91 depth_ = depth < 0 ? 0 : depth; |
92 } | 92 } |
93 | 93 |
94 const Point3F& origin() const { return origin_; } | 94 const Point3F& origin() const { return origin_; } |
95 void set_origin(const Point3F& origin) { origin_ = origin; } | 95 void set_origin(const Point3F& origin) { origin_ = origin; } |
96 | 96 |
| 97 // Expands |this| to contain the given point, if necessary. Please note, even |
| 98 // if |this| is empty, after the function |this| will continue to contain its |
| 99 // |origin_|. |
| 100 void ExpandTo(const Point3F& point); |
| 101 |
97 private: | 102 private: |
| 103 // Expands the box to contain the two given points. It is required that each |
| 104 // component of |min| is less than or equal to the corresponding component in |
| 105 // |max|. Precisely, what this function does is ensure that after the function |
| 106 // completes, |this| contains origin_, min, max, and origin_ + (width_, |
| 107 // height_, depth_), even if the box is empty. Emptiness checks are handled in |
| 108 // the public function Union. |
| 109 void ExpandTo(const Point3F& min, const Point3F& max); |
| 110 |
98 Point3F origin_; | 111 Point3F origin_; |
99 float width_; | 112 float width_; |
100 float height_; | 113 float height_; |
101 float depth_; | 114 float depth_; |
102 }; | 115 }; |
103 | 116 |
104 GFX_EXPORT BoxF UnionBoxes(const BoxF& a, const BoxF& b); | 117 GFX_EXPORT BoxF UnionBoxes(const BoxF& a, const BoxF& b); |
105 | 118 |
106 inline BoxF ScaleBox(const BoxF& b, | 119 inline BoxF ScaleBox(const BoxF& b, |
107 float x_scale, | 120 float x_scale, |
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133 b.y() + v.y(), | 146 b.y() + v.y(), |
134 b.z() + v.z(), | 147 b.z() + v.z(), |
135 b.width(), | 148 b.width(), |
136 b.height(), | 149 b.height(), |
137 b.depth()); | 150 b.depth()); |
138 } | 151 } |
139 | 152 |
140 } // namespace gfx | 153 } // namespace gfx |
141 | 154 |
142 #endif // UI_GFX_BOX_F_H_ | 155 #endif // UI_GFX_BOX_F_H_ |
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