1 /*
   2  * Copyright (c) 2011, 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 /*
  25  * @test
  26  * @key headful
  27  * @bug 6989617
  28  * @summary Enable JComponent to control repaintings of its children
  29  * @author Alexander Potochkin
  30  * @run main bug6989617
  31  */
  32 
  33 import sun.awt.SunToolkit;
  34 
  35 import javax.swing.*;
  36 import java.awt.*;
  37 
  38 public class bug6989617 {
  39     private static MyPanel panel;
  40     private static JButton button;
  41 
  42     public static void main(String... args) throws Exception {
  43         SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
  44         SwingUtilities.invokeAndWait(new Runnable() {
  45             public void run() {
  46                 JFrame frame = new JFrame();
  47                 frame. setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  48                 panel = new MyPanel();
  49 
  50                 button = new JButton("Hello");
  51                 panel.add(button);
  52                 frame.add(panel);
  53 
  54                 frame.setSize(200, 300);
  55                 frame.setVisible(true);
  56             }
  57         });
  58         // Testing the panel as a painting origin,
  59         // the panel.paintImmediately() must be triggered
  60         // when button.repaint() is called
  61         toolkit.realSync();
  62         SwingUtilities.invokeAndWait(new Runnable() {
  63             public void run() {
  64                 panel.resetPaintRectangle();
  65                 button.repaint();
  66             }
  67         });
  68         toolkit.realSync();
  69         SwingUtilities.invokeAndWait(new Runnable() {
  70             public void run() {
  71                 Rectangle pr = panel.getPaintRectangle();
  72                 if (!pr.getSize().equals(button.getSize())) {
  73                     throw new RuntimeException("wrong size of the dirty area");
  74                 }
  75                 if (!pr.getLocation().equals(button.getLocation())) {
  76                     throw new RuntimeException("wrong location of the dirty area");
  77                 }
  78             }
  79         });
  80         // Testing the panel as NOT a painting origin
  81         // the panel.paintImmediately() must NOT be triggered
  82         // when button.repaint() is called
  83         toolkit.realSync();
  84         SwingUtilities.invokeAndWait(new Runnable() {
  85             public void run() {
  86                 panel.resetPaintRectangle();
  87                 panel.setPaintingOrigin(false);
  88                 if (panel.getPaintRectangle() != null) {
  89                     throw new RuntimeException("paint rectangle is not null");
  90                 }
  91                 button.repaint();
  92             }
  93         });
  94         toolkit.realSync();
  95         SwingUtilities.invokeAndWait(new Runnable() {
  96             public void run() {
  97                 if(panel.getPaintRectangle() != null) {
  98                     throw new RuntimeException("paint rectangle is not null");
  99                 }
 100                 System.out.println("Test passed...");
 101             }
 102         });
 103     }
 104 
 105     static class MyPanel extends JPanel {
 106         private boolean isPaintingOrigin = true;
 107         private Rectangle paintRectangle;
 108 
 109         {
 110             setLayout(new GridBagLayout());
 111         }
 112 
 113         public boolean isPaintingOrigin() {
 114             return isPaintingOrigin;
 115         }
 116 
 117         public void setPaintingOrigin(boolean paintingOrigin) {
 118             isPaintingOrigin = paintingOrigin;
 119         }
 120 
 121         public void paintImmediately(int x, int y, int w, int h) {
 122             super.paintImmediately(x, y, w, h);
 123             paintRectangle = new Rectangle(x, y, w, h);
 124         }
 125 
 126         public Rectangle getPaintRectangle() {
 127             return paintRectangle == null? null: new Rectangle(paintRectangle);
 128         }
 129 
 130         public void resetPaintRectangle() {
 131             this.paintRectangle = null;
 132         }
 133     }
 134 }