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 
  24 import java.awt.*;
  25 import java.awt.event.*;
  26 
  27 public 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 }