AWT/Swing merge from GNU Classpath.

From-SVN: r56147

libjava/javax/swing/AbstractListModel.java

@@ -0,0 +1,204 @@
+/* AbstractListModel.java --
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.swing;
+
+// Imports
+import java.io.*;
+import java.util.*;
+import javax.swing.event.*;
+
+/**
+ * AbstractListModel
+ * A2uthor	Ronald Veldema
+ * @author	Andrew Selkirk
+ * @version	1.0
+ */
+public abstract class AbstractListModel implements ListModel, Serializable {
+
+	//-------------------------------------------------------------
+	// Variables --------------------------------------------------
+	//-------------------------------------------------------------
+
+	/**
+	 * listenerList
+	 */
+	protected EventListenerList listenerList = new EventListenerList();
+
+
+	//-------------------------------------------------------------
+	// Initialization ---------------------------------------------
+	//-------------------------------------------------------------
+
+	/**
+	 * Constructor AbstractListModel
+	 */
+	public AbstractListModel() {
+	} // AbstractListModel()
+
+
+	//-------------------------------------------------------------
+	// Methods ----------------------------------------------------
+	//-------------------------------------------------------------
+
+	/**
+	 * addListDataListener
+	 * @param listener TODO
+	 */
+	public void addListDataListener(ListDataListener listener) {
+		listenerList.add(ListDataListener.class, (EventListener) listener);
+	} // addListDataListener()
+
+	/**
+	 * removeListDataListener
+	 * @param listener TODO
+	 */
+	public void removeListDataListener(ListDataListener listener) {
+		listenerList.remove(ListDataListener.class, (EventListener) listener);
+	} // removeListDataListener()
+
+	/**
+	 * fireContentsChanged
+	 * @param source TODO
+	 * @param startIndex TODO
+	 * @param endIndex TODO
+	 */
+	protected void fireContentsChanged(Object source, int startIndex, int endIndex) {
+
+		// Variables
+		ListDataEvent	event;
+		EventListener[]		listeners;
+		ListDataListener	listener;
+		int					index;
+
+		// Create Event
+		event = new ListDataEvent(source, ListDataEvent.CONTENTS_CHANGED,
+					startIndex, endIndex);
+
+		// Get Listeners
+		listeners = listenerList.getListeners(ListDataListener.class);
+
+		// Process Listeners
+		for (index = 0; index < listeners.length; index++) {
+			listener = (ListDataListener) listeners[index];
+			listener.contentsChanged(event);
+		} // for
+
+	} // fireContentsChanged()
+
+	/**
+	 * fireIntervalAdded
+	 * @param source TODO
+	 * @param startIndex TODO
+	 * @param endIndex TODO
+	 */
+	protected void fireIntervalAdded(Object source, int startIndex, int endIndex) {
+
+		// Variables
+		ListDataEvent	event;
+		EventListener[]		listeners;
+		ListDataListener	listener;
+		int					index;
+
+		// Create Event
+		event = new ListDataEvent(source, ListDataEvent.INTERVAL_ADDED,
+					startIndex, endIndex);
+
+		// Get Listeners
+		listeners = listenerList.getListeners(ListDataListener.class);
+
+		// Process Listeners
+		for (index = 0; index < listeners.length; index++) {
+			listener = (ListDataListener) listeners[index];
+			listener.intervalAdded(event);
+		} // for
+
+	} // fireIntervalAdded()
+
+	/**
+	 * fireIntervalRemoved
+	 * @param source TODO
+	 * @param startIndex TODO
+	 * @param endIndex TODO
+	 */
+	protected void fireIntervalRemoved(Object source, int startIndex, int endIndex) {
+
+		// Variables
+		ListDataEvent		event;
+		EventListener[]		listeners;
+		ListDataListener	listener;
+		int					index;
+
+		// Create Event
+		event = new ListDataEvent(source, ListDataEvent.INTERVAL_REMOVED,
+					startIndex, endIndex);
+
+		// Get Listeners
+		listeners = listenerList.getListeners(ListDataListener.class);
+
+		// Process Listeners
+		for (index = 0; index < listeners.length; index++) {
+			listener = (ListDataListener) listeners[index];
+			listener.intervalRemoved(event);
+		} // for
+
+	} // fireIntervalRemoved()
+
+	/**
+	 * getListeners
+	 * @param listenerType TODO
+	 * @returns EventListener[]
+	 */
+	public EventListener[] getListeners(Class listenerType) {
+		return listenerList.getListeners(listenerType);
+	} // getListeners()
+
+	/**
+	 * getElementAt
+	 * @param index TODO
+	 * @returns Object
+	 */
+	public abstract Object getElementAt(int index);
+
+	/**
+	 * getSize
+	 * @returns int
+	 */
+	public abstract int getSize();
+
+
+} // AbstractListModel