1 /* 2 * Copyright (C) 2018 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 #ifndef MINIKIN_MINIKIN_RECT_H 18 #define MINIKIN_MINIKIN_RECT_H 19 20 #include <ostream> 21 22 namespace minikin { 23 24 struct MinikinRect { MinikinRectMinikinRect25 MinikinRect() : mLeft(0), mTop(0), mRight(0), mBottom(0) {} MinikinRectMinikinRect26 MinikinRect(float left, float top, float right, float bottom) 27 : mLeft(left), mTop(top), mRight(right), mBottom(bottom) {} 28 bool operator==(const MinikinRect& o) const { 29 return mLeft == o.mLeft && mTop == o.mTop && mRight == o.mRight && mBottom == o.mBottom; 30 } 31 bool operator!=(const MinikinRect& o) const { return !(*this == o); } 32 float mLeft; 33 float mTop; 34 float mRight; 35 float mBottom; 36 isEmptyMinikinRect37 bool isEmpty() const { return mLeft == mRight || mTop == mBottom; } setMinikinRect38 void set(const MinikinRect& r) { 39 mLeft = r.mLeft; 40 mTop = r.mTop; 41 mRight = r.mRight; 42 mBottom = r.mBottom; 43 } offsetMinikinRect44 void offset(float dx, float dy) { 45 mLeft += dx; 46 mTop += dy; 47 mRight += dx; 48 mBottom += dy; 49 } setEmptyMinikinRect50 void setEmpty() { mLeft = mTop = mRight = mBottom = 0.0; } joinMinikinRect51 void join(const MinikinRect& r) { 52 if (isEmpty()) { 53 set(r); 54 } else if (!r.isEmpty()) { 55 mLeft = std::min(mLeft, r.mLeft); 56 mTop = std::min(mTop, r.mTop); 57 mRight = std::max(mRight, r.mRight); 58 mBottom = std::max(mBottom, r.mBottom); 59 } 60 } 61 }; 62 63 // For gtest output 64 inline std::ostream& operator<<(std::ostream& os, const MinikinRect& r) { 65 return os << "(" << r.mLeft << ", " << r.mTop << ")-(" << r.mRight << ", " << r.mBottom << ")"; 66 } 67 68 } // namespace minikin 69 70 #endif // MINIKIN_MINIKIN_RECT_H 71