1 /*
   2  * Copyright (c) 2004, 2006, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package sun.tools.jconsole.inspector;
  26 
  27 // java import
  28 import javax.swing.*;
  29 
  30 //
  31 
  32 // java import
  33 import java.io.*;
  34 import java.awt.*;
  35 import java.awt.dnd.*;
  36 import java.awt.datatransfer.*;
  37 import java.net.*;
  38 //
  39 
  40 
  41 /**
  42  * This provides a wrapper to the Object class to allow it to be
  43  displayed/manipulated as a GUI object.
  44 */
  45 @SuppressWarnings("serial")
  46 public class XObject extends JLabel {
  47     private Object object;
  48     private static boolean useHashCodeRepresentation = true;
  49     public final static XObject NULL_OBJECT = new XObject("null");
  50     public XObject (Object object, Icon icon) {
  51         this(object);
  52         setIcon(icon);
  53     }
  54 
  55     public XObject (Object object) {
  56         setObject(object);
  57         setHorizontalAlignment(SwingConstants.LEFT);
  58     }
  59 
  60     public boolean equals(Object o) {
  61         try {
  62             if (o instanceof XObject) {
  63                 return object.equals(((XObject)o).getObject());
  64             }
  65         }
  66         catch (Throwable t) {
  67             System.out.println("Error comparing XObjects"+
  68                                t.getMessage());
  69         }
  70         return false;
  71     }
  72 
  73 
  74     public Object getObject() {
  75         return object;
  76     }
  77 
  78     //if true the the object.hashcode is added to the label
  79     public static void
  80         useHashCodeRepresentation(boolean useHashCodeRepresentation) {
  81         XObject.useHashCodeRepresentation = useHashCodeRepresentation;
  82     }
  83 
  84     public static boolean hashCodeRepresentation() {
  85         return useHashCodeRepresentation;
  86     }
  87 
  88     public void setObject(Object object) {
  89         this.object = object;
  90         // if the object is not  a swing component,
  91         // use default icon
  92         try {
  93             String text = null;
  94             if (object instanceof JLabel) {
  95                 setIcon(((JLabel)object).getIcon());
  96                 if (getText() != null) {
  97                     text = ((JLabel)object).getText();
  98 
  99                 }
 100             }
 101             else if (object instanceof JButton) {
 102                 setIcon(((JButton)object).getIcon());
 103                 if (getText() != null) {
 104                     text = ((JButton)object).getText();
 105                 }
 106             }
 107             else if (getText() != null) {
 108                 text = object.toString();
 109                 setIcon(IconManager.DEFAULT_XOBJECT);
 110             }
 111             if (text != null) {
 112                 if (useHashCodeRepresentation && (this != NULL_OBJECT)) {
 113                     text = text + "     ("+object.hashCode()+")";
 114                 }
 115                 setText(text);
 116             }
 117         }
 118         catch (Exception e) {
 119              System.out.println("Error setting XObject object :"+
 120                                 e.getMessage());
 121         }
 122     }
 123 }