4cd533411e
* java/awt/Canvas.java (serialVersionUID): New constant. Updated copyright. Added javadoc from Classpath. * java/awt/ItemSelectable.java: Replaced with Classpath version. From-SVN: r48934
74 lines
2.3 KiB
Java
74 lines
2.3 KiB
Java
/* ItemSelectable.java -- Items that can be selected
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Copyright (C) 1999 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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As a special exception, if you link this library with other files to
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produce an executable, this library does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why the
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executable file might be covered by the GNU General Public License. */
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package java.awt;
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import java.awt.event.ItemListener;
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/**
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* This interface is for objects that can have one or more items
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* selected. For example, radio buttons.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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*/
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public interface ItemSelectable
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{
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/**
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* Returns the list of objects that are selected in this component.
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*
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* @return The list of objects that are selected, or <code>null</code> if
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* no objects are selected.
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*/
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public abstract Object[]
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getSelectedObjects();
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/*************************************************************************/
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/**
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* Adds an item listener to this object. It will receive
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* selection events for this object.
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*
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* @param listener The item listener to add.
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*/
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public abstract void
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addItemListener(ItemListener listener);
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/*************************************************************************/
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/**
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* Removes an item listener from this object. It will no longer receive
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* selection change events.
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*
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* @param listener The item listener to remove.
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*/
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public abstract void
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removeItemListener(ItemListener listener);
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} // interface ItemSelectable
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