--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/swing/property/ListSelectorPropertySynchronizer.java	Thu May 24 04:16:47 2012 -0400
@@ -0,0 +1,202 @@
+/*
+ * 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.*;
+import com.oracle.solaris.vp.util.swing.ListSelector;
+
+/**
+ * The {@code ListSelectorPropertySynchronizer} class synchronizes a {@link
+ * MutableProperty} with a {@code ListSelector} so that changes in one will
+ * automatically be reflected in the other.
+ */
+public class ListSelectorPropertySynchronizer<T>
+    extends PropertySynchronizer<Set<T>, ListSelector> {
+
+    //
+    // Instance data
+    //
+
+    private Boolean leftListIsDest;
+
+    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
+    //
+
+    /**
+     * Constructs a {@code ListSelectorPropertySynchronizer}.
+     *
+     * @param	    property
+     *		    the {@link MutableProperty} to synchronize with {@code
+     *		    selector}
+     *
+     * @param	    selector
+     *		    the {@link ListSelector} to synchronize with {@code
+     *		    property}
+     *
+     * @param	    initFromProp
+     *		    if {@code true}, initial synchronization will be from
+     *		    the property to the object; if {@code false},
+     *		    initial synchronization will go in the other direction
+     *
+     * @param	    leftListIsDest
+     *		    {@code true} if the {@link ListSelector}'s left list holds
+     *		    the selection, {@code false} if the right list
+     */
+    public ListSelectorPropertySynchronizer(MutableProperty<Set<T>> property,
+	ListSelector selector, boolean initFromProp, boolean leftListIsDest) {
+
+	super(property, selector, initFromProp);
+	this.leftListIsDest = leftListIsDest;
+
+	// Re-initialize now that leftListIsDest has been set
+	init(initFromProp);
+
+	selector.getLeftList().getModel().addListDataListener(listener);
+	selector.getRightList().getModel().addListDataListener(listener);
+    }
+
+    /**
+     * Constructs a {@code ListSelectorPropertySynchronizer} with initial
+     * synchronization from the property to the {@link ListSelector}.
+     */
+    public ListSelectorPropertySynchronizer(MutableProperty<Set<T>> property,
+	ListSelector selector, boolean leftListIsDest) {
+
+	this(property, selector, true, leftListIsDest);
+    }
+
+    //
+    // PropertySynchronizer methods
+    //
+
+    @Override
+    public void desynchronize() {
+	super.desynchronize();
+	ListSelector selector = getObject();
+	selector.getLeftList().getModel().addListDataListener(listener);
+	selector.getRightList().getModel().addListDataListener(listener);
+    }
+
+    @Override
+    public Set<T> getValue() {
+	ListSelector selector = getObject();
+	JList list = leftListIsDest ? selector.getLeftList() :
+	    selector.getRightList();
+
+	ListModel model = list.getModel();
+	int size = model.getSize();
+
+	Set<T> values = new HashSet<T>(size);
+	for (int i = 0; i < size; i++) {
+	    Object element = model.getElementAt(i);
+	    T value = toT(element);
+	    values.add(value);
+	}
+
+	return values;
+    }
+
+    @Override
+    public void init(boolean initFromProp) {
+	// Wait until leftListIsDest has been set to initialize
+	if (leftListIsDest != null) {
+	    super.init(initFromProp);
+	}
+    }
+
+    @Override
+    public void setValue(Set<T> values) {
+	if (values == null) {
+	    values = Collections.emptySet();
+	}
+
+	ListSelector selector = getObject();
+
+	JList srcList = leftListIsDest ?
+	    selector.getRightList() : selector.getLeftList();
+
+	JList destList = leftListIsDest ?
+	    selector.getLeftList() : selector.getRightList();
+
+	DefaultListModel srcModel = (DefaultListModel)srcList.getModel();
+	DefaultListModel destModel = (DefaultListModel)destList.getModel();
+
+	for (int i = srcModel.getSize() - 1; i >= 0; i--) {
+	    Object element = srcModel.getElementAt(i);
+	    T value = toT(element);
+	    if (values.contains(value)) {
+		srcModel.removeElementAt(i);
+		destModel.addElement(element);
+	    }
+	}
+
+	for (int i = destModel.getSize() - 1; i >= 0; i--) {
+	    Object element = destModel.getElementAt(i);
+	    T value = toT(element);
+	    if (!values.contains(value)) {
+		destModel.removeElementAt(i);
+		srcModel.addElement(element);
+	    }
+	}
+    }
+
+    //
+    // ListSelectorPropertySynchronizer methods
+    //
+
+    /**
+     * Gets the value from the given list item from the {@code ListModel} of the
+     * {@code JList}s of the {@link ListSelector} of this {@code
+     * ListSelectorPropertySynchronizer}.  This implementation returns {@code
+     * item}, cast to a {@code T}.
+     */
+    @SuppressWarnings({"unchecked"})
+    protected T toT(Object item) {
+	return (T)item;
+    }
+}