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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 integer vector class. This class is used to indicate a | 5 // Defines a simple integer 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_H_ | 10 #ifndef UI_GFX_GEOMETRY_VECTOR2D_H_ |
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| 84 return result; | 84 return result; |
| 85 } | 85 } |
| 86 | 86 |
| 87 inline Vector2d operator-(const Vector2d& lhs, const Vector2d& rhs) { | 87 inline Vector2d operator-(const Vector2d& lhs, const Vector2d& rhs) { |
| 88 Vector2d result = lhs; | 88 Vector2d result = lhs; |
| 89 result.Add(-rhs); | 89 result.Add(-rhs); |
| 90 return result; | 90 return result; |
| 91 } | 91 } |
| 92 | 92 |
| 93 // This is declared here for use in gtest-based unit tests but is defined in | 93 // This is declared here for use in gtest-based unit tests but is defined in |
| 94 // the gfx_test_support target. Depend on that to use this in your unit test. | 94 // the //ui/gfx:test_support target. Depend on that to use this in your unit |
| 95 // This should not be used in production code - call ToString() instead. | 95 // test. This should not be used in production code - call ToString() instead. |
| 96 void PrintTo(const Vector2d& vector, ::std::ostream* os); | 96 void PrintTo(const Vector2d& vector, ::std::ostream* os); |
| 97 | 97 |
| 98 } // namespace gfx | 98 } // namespace gfx |
| 99 | 99 |
| 100 #endif // UI_GFX_GEOMETRY_VECTOR2D_H_ | 100 #endif // UI_GFX_GEOMETRY_VECTOR2D_H_ |
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