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 
  24 import java.awt.BorderLayout;
  25 import java.awt.Color;
  26 import java.awt.FlowLayout;
  27 import java.awt.Graphics;
  28 import java.awt.Window;
  29 import java.awt.event.ComponentEvent;
  30 import java.awt.event.ComponentListener;
  31 import java.awt.event.ContainerAdapter;
  32 import java.awt.event.WindowStateListener;
  33 import java.util.logging.Level;
  34 import java.util.logging.Logger;
  35 import javax.swing.JButton;
  36 import javax.swing.JCheckBox;
  37 import javax.swing.JFrame;
  38 
  39 import java.awt.Component;
  40 import javax.swing.JOptionPane;
  41 
  42 /**
  43   * @test
  44   * @bug 8039345 
  45   * @author Prasanta Sadhukhan
  46   * @run main/manual ComponentResizeTest
  47   * @summary Resizes JFrame so that component drawn inside it gets repainted
  48   * without leaving any trails
  49   */
  50 public class  ComponentResizeTest extends JFrame{
  51     static final JFrame demoFrame = new JFrame();
  52     
  53      public static void testresize() {
  54 
  55         try {
  56             Thread.sleep(5000);
  57             for (int i = 0; i < 20; i++) {
  58                 demoFrame.setSize(demoFrame.getWidth() + 5, demoFrame.getHeight() + 5);
  59                 Thread.sleep(1000);
  60                         
  61             }
  62         } catch (InterruptedException ex) {
  63             Logger.getLogger(ComponentResizeTest.class.getName()).log(Level.SEVERE, null, ex);
  64         }
  65         int confirm = JOptionPane.showConfirmDialog(
  66                                     (Component) null, 
  67                    "Did the component resize work without leaving any trails?",
  68                    "alert", JOptionPane.YES_NO_OPTION);
  69         if (confirm == JOptionPane.YES_OPTION) {
  70             System.out.println("Test passed");
  71         } else {
  72             System.out.println("Test failed");
  73             throw new RuntimeException("Component resize leaves trail");
  74         } 
  75     }
  76 
  77     public static void main(String[] args) throws Exception {
  78         demoFrame.setSize(300, 300);
  79         demoFrame.setLayout(new FlowLayout());
  80         demoFrame.setDefaultCloseOperation(EXIT_ON_CLOSE);
  81         demoFrame.setUndecorated(true);
  82         demoFrame.setBackground(new Color(0f, 0, 0, 0.1f));
  83         JCheckBox b = new JCheckBox("Whatever");
  84         demoFrame.paintAll(null);
  85         b.setOpaque(true);
  86         demoFrame.add(b);
  87         demoFrame.add(new JButton());
  88         demoFrame.setVisible(true);
  89         
  90         try {
  91             testresize();
  92         } finally {
  93             demoFrame.dispose();
  94         }
  95     }
  96 }
  97