1edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project/* 235801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * Copyright (C) 2009 The Android Open Source Project 3edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 435801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 535801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * you may not use this file except in compliance with the License. 635801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * You may obtain a copy of the License at 7edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 835801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 935801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * 1035801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * Unless required by applicable law or agreed to in writing, software 1135801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * distributed under the License is distributed on an "AS IS" BASIS, 1235801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1335801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * See the License for the specific language governing permissions and 1435801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian * limitations under the License. 15edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project */ 16edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1759332804306c054082a39e9b004146bd03ae1d30Jamie Gennis#include <system/graphics.h> 18edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <ui/Rect.h> 19edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 20edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectnamespace android { 21edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 229147d11a5f1d50496908bb1f49996e3ad23e19ccDianne Hackbornstatic inline int32_t min(int32_t a, int32_t b) { 23edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return (a<b) ? a : b; 24edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 25edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 269147d11a5f1d50496908bb1f49996e3ad23e19ccDianne Hackbornstatic inline int32_t max(int32_t a, int32_t b) { 27edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return (a>b) ? a : b; 28edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 29edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 30edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid Rect::makeInvalid() { 31edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project left = 0; 32edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project top = 0; 33edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project right = -1; 34edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bottom = -1; 35edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 36edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 37edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectbool Rect::operator < (const Rect& rhs) const 38edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 39edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (top<rhs.top) { 40edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return true; 41edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else if (top == rhs.top) { 42edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (left < rhs.left) { 43edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return true; 44edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else if (left == rhs.left) { 45edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (bottom<rhs.bottom) { 46edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return true; 47edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else if (bottom == rhs.bottom) { 48edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (right<rhs.right) { 49edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return true; 50edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 51edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 52edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 53edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 54edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return false; 55edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 56edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 579147d11a5f1d50496908bb1f49996e3ad23e19ccDianne HackbornRect& Rect::offsetTo(int32_t x, int32_t y) 58edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 59edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project right -= left - x; 60edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bottom -= top - y; 61edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project left = x; 62edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project top = y; 63edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 64edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 65edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 669147d11a5f1d50496908bb1f49996e3ad23e19ccDianne HackbornRect& Rect::offsetBy(int32_t x, int32_t y) 67edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 68edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project left += x; 69edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project top += y; 70edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project right+= x; 71edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bottom+=y; 72edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 73edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 74edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 7535801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopianconst Rect Rect::operator + (const Point& rhs) const 76edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 7735801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian const Rect result(left+rhs.x, top+rhs.y, right+rhs.x, bottom+rhs.y); 7835801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian return result; 79edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 80edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 8135801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopianconst Rect Rect::operator - (const Point& rhs) const 82edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 8335801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian const Rect result(left-rhs.x, top-rhs.y, right-rhs.x, bottom-rhs.y); 8435801cea5f301c0e1d7a93b15a8f73f98e6b1033Mathias Agopian return result; 85edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 86edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 87edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectbool Rect::intersect(const Rect& with, Rect* result) const 88edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 89edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result->left = max(left, with.left); 90edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result->top = max(top, with.top); 91edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result->right = min(right, with.right); 92edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result->bottom = min(bottom, with.bottom); 93edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return !(result->isEmpty()); 94edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 95edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 96f15a83f5814219c167f87cb8aaea622fc8493499Jamie GennisRect Rect::transform(uint32_t xform, int32_t width, int32_t height) const { 9759332804306c054082a39e9b004146bd03ae1d30Jamie Gennis Rect result(*this); 9859332804306c054082a39e9b004146bd03ae1d30Jamie Gennis if (xform & HAL_TRANSFORM_FLIP_H) { 9959332804306c054082a39e9b004146bd03ae1d30Jamie Gennis result = Rect(width - result.right, result.top, 10059332804306c054082a39e9b004146bd03ae1d30Jamie Gennis width - result.left, result.bottom); 10159332804306c054082a39e9b004146bd03ae1d30Jamie Gennis } 10259332804306c054082a39e9b004146bd03ae1d30Jamie Gennis if (xform & HAL_TRANSFORM_FLIP_V) { 10359332804306c054082a39e9b004146bd03ae1d30Jamie Gennis result = Rect(result.left, height - result.bottom, 10459332804306c054082a39e9b004146bd03ae1d30Jamie Gennis result.right, height - result.top); 10559332804306c054082a39e9b004146bd03ae1d30Jamie Gennis } 10659332804306c054082a39e9b004146bd03ae1d30Jamie Gennis if (xform & HAL_TRANSFORM_ROT_90) { 10759332804306c054082a39e9b004146bd03ae1d30Jamie Gennis int left = height - result.bottom; 10859332804306c054082a39e9b004146bd03ae1d30Jamie Gennis int top = result.left; 10959332804306c054082a39e9b004146bd03ae1d30Jamie Gennis int right = height - result.top; 11059332804306c054082a39e9b004146bd03ae1d30Jamie Gennis int bottom = result.right; 11159332804306c054082a39e9b004146bd03ae1d30Jamie Gennis result = Rect(left, top, right, bottom); 11259332804306c054082a39e9b004146bd03ae1d30Jamie Gennis } 11359332804306c054082a39e9b004146bd03ae1d30Jamie Gennis return result; 11459332804306c054082a39e9b004146bd03ae1d30Jamie Gennis} 11559332804306c054082a39e9b004146bd03ae1d30Jamie Gennis 116edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; // namespace android 117