MyCanvas.java revision 8729:0242fce0f717
1/** 2 * Copyright (c) 2012, 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.event.*; 26 27public class MyCanvas extends Canvas { 28 29 static { 30 try { 31 System.loadLibrary("mylib"); 32 } catch (Throwable t) { 33 System.out.println("Test failed!!"); 34 t.printStackTrace(); 35 System.exit(1); 36 } 37 } 38 39 public native void paint(Graphics g); 40 41 public static void main(String[] args) { 42 try { 43 Robot robot = new Robot(); 44 Frame f = new Frame(); 45 f.setBounds(0, 0, 100, 100); 46 f.add(new MyCanvas()); 47 f.addWindowListener(new WindowAdapter() { 48 public void windowClosing(WindowEvent ev) { 49 System.exit(0); 50 } 51 }); 52 f.setVisible(true); 53 robot.delay(5000); 54 Color col1 = new Color(0, 0, 0); 55 Color col2 = robot.getPixelColor(f.getX()+50, f.getY()+50); 56 if (col1.equals(col2)) { 57 System.out.println("Test passed!"); 58 } else { 59 throw new RuntimeException("Color of JAWT canvas is wrong or " + 60 "it was not rendered. " + "Check that other windows " + 61 "do not block the test frame."); 62 } 63 System.exit(0); 64 } catch (Throwable t) { 65 System.out.println("Test failed!"); 66 t.printStackTrace(); 67 System.exit(1); 68 } 69 } 70} 71