components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/swing/property/ListModelPropertySynchronizer.java
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
*/
package com.oracle.solaris.vp.util.swing.property;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import com.oracle.solaris.vp.util.misc.property.*;
/**
* The {@code ListModelPropertySynchronizer} class synchronizes a {@link
* MutableProperty} with a {@code ListModel} so that changes in one will
* automatically be reflected in the other.
*/
public class ListModelPropertySynchronizer<T>
extends PropertySynchronizer<List<T>, DefaultListModel> {
//
// Instance data
//
private JList list;
private ListDataListener listener =
new ListDataListener() {
@Override
public void contentsChanged(ListDataEvent e) {
objectChanged();
}
@Override
public void intervalAdded(ListDataEvent e) {
objectChanged();
}
@Override
public void intervalRemoved(ListDataEvent e) {
objectChanged();
}
};
//
// Constructors
//
public ListModelPropertySynchronizer(MutableProperty<List<T>> property,
DefaultListModel model, boolean initFromProp) {
super(property, model, initFromProp);
model.addListDataListener(listener);
}
/**
* Constructs a {@code ListModelPropertySynchronizer} with initial
* synchronization from the property to the {@code DefaultListModel}.
*/
public ListModelPropertySynchronizer(MutableProperty<List<T>> property,
DefaultListModel model) {
this(property, model, true);
}
//
// PropertySynchronizer methods
//
@Override
public void desynchronize() {
super.desynchronize();
getObject().addListDataListener(listener);
}
@Override
@SuppressWarnings({"unchecked"})
public List<T> getValue() {
ListModel model = getObject();
int nRows = model.getSize();
List<T> values = new ArrayList<T>(nRows);
for (int row = 0; row < nRows; row++) {
values.add((T)model.getElementAt(row));
}
return values;
}
@Override
public void setValue(List<T> values) {
if (values == null) {
values = Collections.emptyList();
}
DefaultListModel model = getObject();
int nRows = model.getSize();
int nVals = values.size();
model.clear();
for (Object value : values) {
model.addElement(value);
}
}
}