* javax/swing/JToggleButton.java (ToggleButtonModel):
[official-gcc.git] / libjava / javax / swing / JButton.java
blob4ec9fd19ceea769d51a7c7d71108713d0e5f8f5e
1 /* JButton.java --
2 Copyright (C) 2002, 2004 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA.
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
24 combination.
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
38 package javax.swing;
40 import javax.accessibility.Accessible;
41 import javax.accessibility.AccessibleContext;
42 import javax.swing.plaf.ButtonUI;
44 /**
45 * An instance of JButton can be added to a panel, frame etc
47 * @author Ronald Veldema (rveldema@cs.vu.nl)
49 public class JButton extends AbstractButton implements Accessible
51 private static final long serialVersionUID = -1907255238954382202L;
53 boolean def, is_def;
56 public JButton()
58 this(null, null);
61 public JButton(Action a)
63 this();
64 setAction(a);
67 public JButton(Icon icon)
69 this(null, icon);
72 public JButton(String text)
74 this(text, null);
77 public JButton(String text, Icon icon)
79 super(text, icon);
82 public Object[] getSelectedObjects()
84 return null;
87 protected void configurePropertiesFromAction(Action a)
89 //Factory method which sets the AbstractButton's properties according to values from the Action instance.
92 public AccessibleContext getAccessibleContext()
94 //Gets the AccessibleContext associated with this JButton.
95 return null;
98 public String getUIClassID()
100 //Returns a string that specifies the name of the L&F class that renders this component.
101 return "ButtonUI";
104 public boolean isDefaultButton()
106 //Returns whether or not this button is the default button on the RootPane.
107 return is_def;
110 public boolean isDefaultCapable()
112 //Returns whether or not this button is capable of being the default button on the RootPane.
113 return def;
116 protected String paramString()
118 return "JButton";
121 public void removeNotify()
123 //Overrides JComponent.removeNotify to check if this button is currently set as the default button on the RootPane, and if so, sets the RootPane's default button to null to ensure the RootPane doesn't hold onto an invalid button reference.
126 public void setDefaultCapable(boolean defaultCapable)
127 { def = defaultCapable; }
129 public void updateUI()
131 ButtonUI b = (ButtonUI)UIManager.getUI(this);
132 setUI(b);