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134 lines
3.7 KiB
Java
134 lines
3.7 KiB
Java
/* JButton.java --
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.plaf.*;
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import javax.accessibility.*;
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/**
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* An instance of JButton can be added to a panel, frame etc
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*
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* @author Ronald Veldema (rveldema@cs.vu.nl)
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*/
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public class JButton extends AbstractButton implements Accessible
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{
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boolean def, is_def;
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public JButton()
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{
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this(null, null);
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}
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public JButton(Action a)
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{
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this();
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setAction(a);
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}
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public JButton(Icon icon)
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{
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this(null, icon);
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}
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public JButton(String text)
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{
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this(text, null);
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}
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public JButton(String text, Icon icon)
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{
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super(text, icon);
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}
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public Object[] getSelectedObjects()
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{
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return null;
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}
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protected void configurePropertiesFromAction(Action a)
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{
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//Factory method which sets the AbstractButton's properties according to values from the Action instance.
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}
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public AccessibleContext getAccessibleContext()
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{
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//Gets the AccessibleContext associated with this JButton.
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return null;
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}
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public String getUIClassID()
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{
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//Returns a string that specifies the name of the L&F class that renders this component.
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return "JButton";
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}
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public boolean isDefaultButton()
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{
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//Returns whether or not this button is the default button on the RootPane.
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return is_def;
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}
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public boolean isDefaultCapable()
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{
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//Returns whether or not this button is capable of being the default button on the RootPane.
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return def;
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}
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protected String paramString()
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{
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return "JButton";
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}
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public void removeNotify()
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{
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//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.
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}
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public void setDefaultCapable(boolean defaultCapable)
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{ def = defaultCapable; }
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public void updateUI()
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{
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ButtonUI b = (ButtonUI)UIManager.getUI(this);
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setUI(b);
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}
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}
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