1 /* 2 * Copyright (c) 2007, 2017 Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.jemmy.image.pixel; 24 25 import org.jemmy.Dimension; 26 27 /** 28 * 29 * @author shura 30 */ 31 public class MaxDistanceComparator extends ThresholdComparator{ 32 33 /** 34 * 35 * @param threshold 36 */ 37 public MaxDistanceComparator(double threshold) { 38 super(0, Math.sqrt(3)); 39 setThreshold(threshold); 40 } 41 42 /** 43 * 44 * @param image1 45 * @param image2 46 * @return 47 */ 48 public boolean compare(Raster image1, Raster image2) { 49 Dimension size = PixelImageComparator.computeDiffSize(image1, image2); 50 if (size == null) { 51 return false; 52 } 53 double[] colors1 = new double[image1.getSupported().length]; 54 double[] colors2 = new double[image2.getSupported().length]; 55 double distance = 0; 56 for (int x = 0; x < size.width; x++) { 57 for (int y = 0; y < size.height; y++) { 58 image1.getColors(x, y, colors1); 59 image2.getColors(x, y, colors2); 60 distance = Math.max(distance, AverageDistanceComparator.distance(image1.getSupported(), colors1, image2.getSupported(), colors2)); 61 } 62 } 63 return distance <= getThreshold(); 64 } 65 66 /** 67 * 68 * @return 69 */ 70 public String getID() { 71 return MaxDistanceComparator.class.getName() + ":" + getThreshold(); 72 } 73 }