FilterGUIListModel.java Source code

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Here is the source code for FilterGUIListModel.java

Source

/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */

import java.util.ArrayList;
import java.util.Collection;

import javax.swing.ListModel;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;

/**
 * FilterGUIListModel combines an ArrayList with a ListModel for ease of use.
 */
public class FilterGUIListModel extends ArrayList implements ListModel {

    protected Object source;

    FilterGUIListModel(Object src) {
        source = src;
    }

    public Object getElementAt(int index) {
        return get(index);
    }

    public int getSize() {
        return size();
    }

    ArrayList listeners = new ArrayList();

    public void removeListDataListener(javax.swing.event.ListDataListener l) {
        listeners.remove(l);
    }

    public void addListDataListener(javax.swing.event.ListDataListener l) {
        listeners.add(l);
    }

    void notifyListeners() {
        // no attempt at optimziation
        ListDataEvent le = new ListDataEvent(source, ListDataEvent.CONTENTS_CHANGED, 0, getSize());
        for (int i = 0; i < listeners.size(); i++) {
            ((ListDataListener) listeners.get(i)).contentsChanged(le);
        }
    }

    // REMAINDER ARE OVERRIDES JUST TO CALL NOTIFYLISTENERS

    public boolean add(Object o) {
        boolean b = super.add(o);
        if (b)
            notifyListeners();
        return b;
    }

    public void add(int index, Object element) {
        super.add(index, element);
        notifyListeners();
    }

    public boolean addAll(Collection o) {
        boolean b = super.add(o);
        if (b)
            notifyListeners();
        return b;
    }

    public void clear() {
        super.clear();
        notifyListeners();
    }

    public Object remove(int i) {
        Object o = super.remove(i);
        notifyListeners();
        return o;
    }

    public boolean remove(Object o) {
        boolean b = super.remove(o);
        if (b)
            notifyListeners();
        return b;
    }

    public Object set(int index, Object element) {
        Object o = super.set(index, element);
        notifyListeners();
        return o;
    }
}