1/* 2 * Copyright (c) 2015, 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 24import java.awt.*; 25import java.awt.image.BufferedImage; 26import java.io.File; 27import java.io.IOException; 28import javax.imageio.ImageIO; 29import javax.swing.*; 30import javax.swing.tree.DefaultMutableTreeNode; 31import javax.swing.tree.DefaultTreeModel; 32 33/* 34 * @test 35 * @bug 8072676 36 * @summary Checks if the tree painter doesn't expand existing clip 37 * @author Anton Nashatyrev 38 */ 39public class TreeClipTest { 40 41 static boolean passed = true; 42 43 static boolean checkImage(BufferedImage img, int clipY) { 44 for (int y = clipY; y < img.getHeight(); y++) { 45 for (int x = 0; x < img.getWidth(); x++) { 46 if ((img.getRGB(x,y) & 0xFFFFFF) != 0xFFFFFF) { 47 return false; 48 } 49 } 50 } 51 return true; 52 } 53 54 public static void main(String[] args) throws Exception { 55 SwingUtilities.invokeAndWait(new Runnable() { 56 @Override 57 public void run() { 58 DefaultMutableTreeNode root = new DefaultMutableTreeNode("JTree"); 59 DefaultMutableTreeNode parent; 60 61 parent = new DefaultMutableTreeNode("colors"); 62 root.add(parent); 63 parent.add(new DefaultMutableTreeNode("blue")); 64 DefaultTreeModel model = new DefaultTreeModel(root); 65 JTree tree = new JTree(model); 66 67 BufferedImage img = new BufferedImage(50, 50, BufferedImage.TYPE_INT_ARGB); 68 for (int clipY = 1; clipY < 50; clipY++) { 69 Graphics2D ig = img.createGraphics(); 70 ig.setColor(Color.WHITE); 71 ig.fillRect(0,0,1000, 1000); 72 tree.setSize(200,200); 73 ig.setClip(0,0,1000,clipY); 74 tree.paint(ig); 75 ig.dispose(); 76 77 if (!checkImage(img, clipY)) { 78 System.err.println("Failed with clipY=" + clipY); 79 passed = false; 80 try { 81 ImageIO.write(img, "PNG", new File("failedResult.png")); 82 } catch (IOException e) { 83 e.printStackTrace(); 84 } 85 return; 86 } 87 } 88 } 89 }); 90 91 if (!passed) { 92 throw new RuntimeException("Test failed."); 93 } else { 94 System.out.println("Passed."); 95 } 96 } 97} 98