1 /* 2 * Copyright (c) 1997, 2016, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package org.netbeans.jemmy.image; 26 27 import java.awt.Point; 28 import java.awt.image.BufferedImage; 29 30 /** 31 * Performs "rough" image search. 32 * 33 * @author Alexandre Iline (alexandre.iline@oracle.com) 34 */ 35 public class RoughImageFinder implements ImageFinder { 36 37 double roughness = .0; 38 int bigWidth, bigHeight; 39 int[][] bigPixels; 40 41 /** 42 * Creates an instance allowing to find an image inside the one passed as 43 * parameter with some "roughness". 44 * 45 * @param area - Image to search in. 46 * @param roughness - Allowed 47 */ RoughImageFinder(BufferedImage area, double roughness)48 public RoughImageFinder(BufferedImage area, double roughness) { 49 this.roughness = roughness; 50 bigWidth = area.getWidth(); 51 bigHeight = area.getHeight(); 52 bigPixels = new int[bigWidth][bigHeight]; 53 for (int x = 0; x < bigWidth; x++) { 54 for (int y = 0; y < bigHeight; y++) { 55 bigPixels[x][y] = area.getRGB(x, y); 56 } 57 } 58 } 59 60 /** 61 * Performs "rough" search. 62 * 63 * @param image an image to search. 64 * @param index an ordinal image location index. 65 * @return Point where number of unmatching pixels less or equal to <code>image1.getWidth() * image1.getHeight() * roughness<code> 66 */ 67 @Override findImage(BufferedImage image, int index)68 public Point findImage(BufferedImage image, int index) { 69 int smallWidth = image.getWidth(); 70 int smallHeight = image.getHeight(); 71 int[][] smallPixels = new int[smallWidth][smallHeight]; 72 for (int x = 0; x < smallWidth; x++) { 73 for (int y = 0; y < smallHeight; y++) { 74 smallPixels[x][y] = image.getRGB(x, y); 75 } 76 } 77 double maxRoughPixels = (double) (smallWidth * smallHeight) * roughness; 78 int count = 0; 79 for (int X = 0; X <= bigWidth - smallWidth; X++) { 80 for (int Y = 0; Y <= bigHeight - smallHeight; Y++) { 81 int roughPixels = 0; 82 for (int x = 0; x < smallWidth; x++) { 83 for (int y = 0; y < smallHeight; y++) { 84 if (smallPixels[x][y] != bigPixels[X + x][Y + y]) { 85 roughPixels++; 86 if (roughPixels > maxRoughPixels) { 87 break; 88 } 89 } 90 } 91 if (roughPixels > maxRoughPixels) { 92 break; 93 } 94 } 95 if (roughPixels <= maxRoughPixels) { 96 if (count == index) { 97 return new Point(X, Y); 98 } 99 count++; 100 } 101 } 102 } 103 return null; 104 } 105 } 106