1 /*
2  * Copyright 2013 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 
17 #pragma once
18 
19 namespace android {
20 
21 class FloatRect {
22 public:
23     FloatRect() = default;
FloatRect(float _left,float _top,float _right,float _bottom)24     constexpr FloatRect(float _left, float _top, float _right, float _bottom)
25       : left(_left), top(_top), right(_right), bottom(_bottom) {}
26 
getWidth()27     float getWidth() const { return right - left; }
getHeight()28     float getHeight() const { return bottom - top; }
29 
intersect(const FloatRect & other)30     FloatRect intersect(const FloatRect& other) const {
31         FloatRect intersection = {
32             // Inline to avoid tromping on other min/max defines or adding a
33             // dependency on STL
34             (left > other.left) ? left : other.left,
35             (top > other.top) ? top : other.top,
36             (right < other.right) ? right : other.right,
37             (bottom < other.bottom) ? bottom : other.bottom
38         };
39         if (intersection.getWidth() < 0 || intersection.getHeight() < 0) {
40             return {0, 0, 0, 0};
41         }
42         return intersection;
43     }
44 
45     float left = 0.0f;
46     float top = 0.0f;
47     float right = 0.0f;
48     float bottom = 0.0f;
49 };
50 
51 inline bool operator==(const FloatRect& a, const FloatRect& b) {
52     return a.left == b.left && a.top == b.top && a.right == b.right && a.bottom == b.bottom;
53 }
54 
55 }  // namespace android
56