Romain Guy | bb9524b | 2010-06-22 18:56:38 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Romain Guy | 9d5316e | 2010-06-24 19:30:36 -0700 | [diff] [blame] | 17 | #ifndef ANDROID_UI_RECT_H |
| 18 | #define ANDROID_UI_RECT_H |
Romain Guy | bb9524b | 2010-06-22 18:56:38 -0700 | [diff] [blame] | 19 | |
| 20 | namespace android { |
Romain Guy | 9d5316e | 2010-06-24 19:30:36 -0700 | [diff] [blame] | 21 | namespace uirenderer { |
Romain Guy | bb9524b | 2010-06-22 18:56:38 -0700 | [diff] [blame] | 22 | |
| 23 | /////////////////////////////////////////////////////////////////////////////// |
| 24 | // Structs |
| 25 | /////////////////////////////////////////////////////////////////////////////// |
| 26 | |
| 27 | struct Rect { |
| 28 | float left; |
| 29 | float top; |
| 30 | float right; |
| 31 | float bottom; |
| 32 | |
Romain Guy | 9d5316e | 2010-06-24 19:30:36 -0700 | [diff] [blame] | 33 | Rect(): |
| 34 | left(0), |
| 35 | top(0), |
| 36 | right(0), |
| 37 | bottom(0) { |
| 38 | } |
| 39 | |
| 40 | Rect(float left, float top, float right, float bottom): |
| 41 | left(left), |
| 42 | top(top), |
| 43 | right(right), |
| 44 | bottom(bottom) { |
| 45 | } |
Romain Guy | bb9524b | 2010-06-22 18:56:38 -0700 | [diff] [blame] | 46 | |
| 47 | Rect(const Rect& r) { |
| 48 | set(r); |
| 49 | } |
| 50 | |
| 51 | Rect(Rect& r) { |
| 52 | set(r); |
| 53 | } |
| 54 | |
| 55 | Rect& operator=(const Rect& r) { |
| 56 | set(r); |
| 57 | return *this; |
| 58 | } |
| 59 | |
| 60 | Rect& operator=(Rect& r) { |
| 61 | set(r); |
| 62 | return *this; |
| 63 | } |
| 64 | |
| 65 | friend int operator==(const Rect& a, const Rect& b) { |
| 66 | return !memcmp(&a, &b, sizeof(a)); |
| 67 | } |
| 68 | |
| 69 | friend int operator!=(const Rect& a, const Rect& b) { |
| 70 | return memcmp(&a, &b, sizeof(a)); |
| 71 | } |
| 72 | |
| 73 | bool isEmpty() const { |
| 74 | return left >= right || top >= bottom; |
| 75 | } |
| 76 | |
| 77 | void setEmpty() { |
| 78 | memset(this, 0, sizeof(*this)); |
| 79 | } |
| 80 | |
| 81 | void set(float left, float top, float right, float bottom) { |
| 82 | this->left = left; |
| 83 | this->right = right; |
| 84 | this->top = top; |
| 85 | this->bottom = bottom; |
| 86 | } |
| 87 | |
| 88 | void set(const Rect& r) { |
| 89 | set(r.left, r.top, r.right, r.bottom); |
| 90 | } |
| 91 | |
| 92 | float getWidth() const { |
| 93 | return right - left; |
| 94 | } |
| 95 | |
| 96 | float getHeight() const { |
| 97 | return bottom - top; |
| 98 | } |
| 99 | |
| 100 | bool intersects(float left, float top, float right, float bottom) const { |
| 101 | return left < right && top < bottom && |
| 102 | this->left < this->right && this->top < this->bottom && |
| 103 | this->left < right && left < this->right && |
| 104 | this->top < bottom && top < this->bottom; |
| 105 | } |
| 106 | |
| 107 | bool intersects(const Rect& r) const { |
| 108 | return intersects(r.left, r.top, r.right, r.bottom); |
| 109 | } |
| 110 | |
| 111 | bool intersect(float left, float top, float right, float bottom) { |
| 112 | if (left < right && top < bottom && !this->isEmpty() && |
| 113 | this->left < right && left < this->right && |
| 114 | this->top < bottom && top < this->bottom) { |
| 115 | |
| 116 | if (this->left < left) this->left = left; |
| 117 | if (this->top < top) this->top = top; |
| 118 | if (this->right > right) this->right = right; |
| 119 | if (this->bottom > bottom) this->bottom = bottom; |
| 120 | |
| 121 | return true; |
| 122 | } |
| 123 | return false; |
| 124 | } |
| 125 | |
| 126 | bool intersect(const Rect& r) { |
| 127 | return intersect(r.left, r.top, r.right, r.bottom); |
| 128 | } |
| 129 | |
| 130 | void dump() const { |
| 131 | LOGD("Rect[l=%f t=%f r=%f b=%f]", left, top, right, bottom); |
| 132 | } |
| 133 | |
| 134 | }; // struct Rect |
| 135 | |
Romain Guy | 9d5316e | 2010-06-24 19:30:36 -0700 | [diff] [blame] | 136 | }; // namespace uirenderer |
Romain Guy | bb9524b | 2010-06-22 18:56:38 -0700 | [diff] [blame] | 137 | }; // namespace android |
| 138 | |
| 139 | #endif // ANDROID_RECT_H |