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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_SIZE_BASE_H_ | 5 #ifndef UI_GFX_SIZE_BASE_H_ |
6 #define UI_GFX_SIZE_BASE_H_ | 6 #define UI_GFX_SIZE_BASE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
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34 | 34 |
35 Class Scale(float scale) const WARN_UNUSED_RESULT { | 35 Class Scale(float scale) const WARN_UNUSED_RESULT { |
36 return Scale(scale, scale); | 36 return Scale(scale, scale); |
37 } | 37 } |
38 | 38 |
39 Class Scale(float x_scale, float y_scale) const WARN_UNUSED_RESULT { | 39 Class Scale(float x_scale, float y_scale) const WARN_UNUSED_RESULT { |
40 return Class(static_cast<Type>(width_ * x_scale), | 40 return Class(static_cast<Type>(width_ * x_scale), |
41 static_cast<Type>(height_ * y_scale)); | 41 static_cast<Type>(height_ * y_scale)); |
42 } | 42 } |
43 | 43 |
44 void set_width(Type width); | 44 void set_width(Type width) { width_ = width; } |
45 void set_height(Type height); | 45 void set_height(Type height) { height_ = height; } |
46 | 46 |
47 bool operator==(const Class& s) const { | 47 bool operator==(const Class& s) const { |
48 return width_ == s.width_ && height_ == s.height_; | 48 return width_ == s.width_ && height_ == s.height_; |
49 } | 49 } |
50 | 50 |
51 bool operator!=(const Class& s) const { | 51 bool operator!=(const Class& s) const { |
52 return !(*this == s); | 52 return !(*this == s); |
53 } | 53 } |
54 | 54 |
55 bool IsEmpty() const { | 55 bool IsEmpty() const { |
56 // Size doesn't allow negative dimensions, so testing for 0 is enough. | 56 return (width_ <= 0) || (height_ <= 0); |
57 return (width_ == 0) || (height_ == 0); | 57 } |
| 58 |
| 59 void ClampToNonNegative() { |
| 60 if (width_ < 0) |
| 61 width_ = 0; |
| 62 if (height_ < 0) |
| 63 height_ = 0; |
58 } | 64 } |
59 | 65 |
60 protected: | 66 protected: |
61 SizeBase(Type width, Type height); | 67 SizeBase(Type width, Type height) |
| 68 : width_(width), |
| 69 height_(height) {} |
| 70 |
62 // Destructor is intentionally made non virtual and protected. | 71 // Destructor is intentionally made non virtual and protected. |
63 // Do not make this public. | 72 // Do not make this public. |
64 ~SizeBase(); | 73 ~SizeBase() {} |
65 | 74 |
66 private: | 75 private: |
67 Type width_; | 76 Type width_; |
68 Type height_; | 77 Type height_; |
69 }; | 78 }; |
70 | 79 |
71 } // namespace gfx | 80 } // namespace gfx |
72 | 81 |
73 #endif // UI_GFX_SIZE_BASE_H_ | 82 #endif // UI_GFX_SIZE_BASE_H_ |
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