165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/* 265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Copyright (C) 2011 The Android Open Source Project 365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Licensed under the Apache License, Version 2.0 (the "License"); 565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * you may not use this file except in compliance with the License. 665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * You may obtain a copy of the License at 765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * http://www.apache.org/licenses/LICENSE-2.0 965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 1065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Unless required by applicable law or agreed to in writing, software 1165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * distributed under the License is distributed on an "AS IS" BASIS, 1265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * See the License for the specific language governing permissions and 1465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * limitations under the License. 1565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 1665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpackage android.filterfw.geometry; 1965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.geometry.Point; 2165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.geometry.Quad; 2265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/** 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * @hide 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class Rectangle extends Quad { 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public Rectangle() { 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public Rectangle(float x, float y, float width, float height) { 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(new Point(x, y), 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn new Point(x + width, y), 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn new Point(x, y + height), 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn new Point(x + width, y + height)); 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public Rectangle(Point origin, Point size) { 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(origin, 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn origin.plus(size.x, 0.0f), 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn origin.plus(0.0f, size.y), 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn origin.plus(size.x, size.y)); 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public static Rectangle fromRotatedRect(Point center, Point size, float rotation) { 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point p0 = new Point(center.x - size.x/2f, center.y - size.y/2f); 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point p1 = new Point(center.x + size.x/2f, center.y - size.y/2f); 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point p2 = new Point(center.x - size.x/2f, center.y + size.y/2f); 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point p3 = new Point(center.x + size.x/2f, center.y + size.y/2f); 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return new Rectangle(p0.rotatedAround(center, rotation), 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn p1.rotatedAround(center, rotation), 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn p2.rotatedAround(center, rotation), 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn p3.rotatedAround(center, rotation)); 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Rectangle(Point p0, Point p1, Point p2, Point p3) { 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(p0, p1, p2, p3); 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public static Rectangle fromCenterVerticalAxis(Point center, Point vAxis, Point size) { 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point dy = vAxis.scaledTo(size.y / 2.0f); 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point dx = vAxis.rotated90(1).scaledTo(size.x / 2.0f); 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return new Rectangle(center.minus(dx).minus(dy), 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn center.plus(dx).minus(dy), 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn center.minus(dx).plus(dy), 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn center.plus(dx).plus(dy)); 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public float getWidth() { 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return p1.minus(p0).length(); 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public float getHeight() { 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return p2.minus(p0).length(); 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public Point center() { 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return p0.plus(p1).plus(p2).plus(p3).times(0.25f); 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public Rectangle scaled(float s) { 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return new Rectangle(p0.times(s), p1.times(s), p2.times(s), p3.times(s)); 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public Rectangle scaled(float x, float y) { 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return new Rectangle(p0.mult(x, y), p1.mult(x, y), p2.mult(x, y), p3.mult(x, y)); 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn //public Rectangle rotated(float radians) { 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // TODO: Implement this. 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn //} 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 96