1 /* 2 * Copyright (c) 2014, 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 24 import java.awt.AWTException; 25 import java.awt.Color; 26 import java.awt.Component; 27 import java.awt.Frame; 28 import java.awt.Graphics; 29 import java.awt.Label; 30 import java.awt.Point; 31 32 /** 33 * @test 34 * @bug 7157680 35 * @library ../../../lib/testlibrary 36 * @build ExtendedRobot 37 * @author Sergey Bylokhov 38 @ @run main PaintNativeOnUpdate 39 */ 40 public final class PaintNativeOnUpdate extends Label { 41 42 private boolean fullUpdate = true; 43 44 public static void main(final String[] args) throws AWTException { 45 ExtendedRobot robot = new ExtendedRobot(); 46 robot.setAutoDelay(50); 47 final Frame frame = new Frame(); 48 final Component label = new PaintNativeOnUpdate(); 49 frame.setBackground(Color.RED); 50 frame.add(label); 51 frame.setSize(300, 300); 52 frame.setUndecorated(true); 53 frame.setLocationRelativeTo(null); 54 frame.setVisible(true); 55 robot.waitForIdle(1000); 56 label.repaint();// first paint 57 robot.waitForIdle(1000); 58 label.repaint();// incremental paint 59 robot.waitForIdle(1000); 60 61 Point point = label.getLocationOnScreen(); 62 Color color = robot.getPixelColor(point.x + label.getWidth() / 2, 63 point.y + label.getHeight() / 2); 64 if (!color.equals(Color.GREEN)) { 65 System.err.println("Expected color = " + Color.GREEN); 66 System.err.println("Actual color = " + color); 67 throw new RuntimeException(); 68 } 69 frame.dispose(); 70 } 71 72 @Override 73 public void update(final Graphics g) { 74 if (fullUpdate) { 75 //full paint 76 g.setColor(Color.GREEN); 77 g.fillRect(0, 0, getWidth(), getHeight()); 78 fullUpdate = false; 79 } else { 80 // Do nothing 81 // incremental paint 82 } 83 } 84 85 @Override 86 public void paint(final Graphics g) { 87 // Do nothing 88 } 89 }