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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 // Defines a simple float vector class. This class is used to indicate a | 5 // Defines a simple float vector class. This class is used to indicate a |
| 6 // distance in two dimensions between two points. Subtracting two points should | 6 // distance in two dimensions between two points. Subtracting two points should |
| 7 // produce a vector, and adding a vector to a point produces the point at the | 7 // produce a vector, and adding a vector to a point produces the point at the |
| 8 // vector's distance from the original point. | 8 // vector's distance from the original point. |
| 9 | 9 |
| 10 #ifndef UI_GFX_GEOMETRY_VECTOR2D_F_H_ | 10 #ifndef UI_GFX_GEOMETRY_VECTOR2D_F_H_ |
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| 102 GFX_EXPORT Vector2dF ScaleVector2d(const Vector2dF& v, | 102 GFX_EXPORT Vector2dF ScaleVector2d(const Vector2dF& v, |
| 103 float x_scale, | 103 float x_scale, |
| 104 float y_scale); | 104 float y_scale); |
| 105 | 105 |
| 106 // Return a vector that is |v| scaled by the given scale factor. | 106 // Return a vector that is |v| scaled by the given scale factor. |
| 107 inline Vector2dF ScaleVector2d(const Vector2dF& v, float scale) { | 107 inline Vector2dF ScaleVector2d(const Vector2dF& v, float scale) { |
| 108 return ScaleVector2d(v, scale, scale); | 108 return ScaleVector2d(v, scale, scale); |
| 109 } | 109 } |
| 110 | 110 |
| 111 // This is declared here for use in gtest-based unit tests but is defined in | 111 // This is declared here for use in gtest-based unit tests but is defined in |
| 112 // the gfx_test_support target. Depend on that to use this in your unit test. | 112 // the //ui/gfx:test_support target. Depend on that to use this in your unit |
| 113 // This should not be used in production code - call ToString() instead. | 113 // test. This should not be used in production code - call ToString() instead. |
| 114 void PrintTo(const Vector2dF& vector, ::std::ostream* os); | 114 void PrintTo(const Vector2dF& vector, ::std::ostream* os); |
| 115 | 115 |
| 116 } // namespace gfx | 116 } // namespace gfx |
| 117 | 117 |
| 118 #endif // UI_GFX_GEOMETRY_VECTOR2D_F_H_ | 118 #endif // UI_GFX_GEOMETRY_VECTOR2D_F_H_ |
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