--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/swing/LinkCollapsiblePane.java	Thu May 24 04:16:47 2012 -0400
@@ -0,0 +1,112 @@
+/*
+ * 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;
+
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+import com.oracle.solaris.vp.util.swing.HyperlinkLabel.UnderlinePolicy;
+
+/**
+ * The {@code LinkCollapsiblePane} class is a {@link HeaderedCollapsiblePane}
+ * that provides an uninitialized {@link HyperlinkLabel} as a header.
+ */
+@SuppressWarnings({"serial"})
+public class LinkCollapsiblePane extends HeaderedCollapsiblePane {
+    //
+    // Instance data
+    //
+
+    private HyperlinkLabel link;
+
+    //
+    // Constructors
+    //
+
+    public LinkCollapsiblePane(int gap) {
+	super(gap);
+
+	link = new HyperlinkLabel();
+	link.setUnderlinePolicy(UnderlinePolicy.NEVER);
+
+	link.addActionListener(
+	    new ActionListener() {
+		@Override
+		public void actionPerformed(ActionEvent e) {
+		    setCollapsed(!getCollapsiblePane().isCollapsed());
+		}
+	    });
+
+	getHeaderPane().add(link, BorderLayout.WEST);
+
+	setCollapsed(true);
+    }
+
+    public LinkCollapsiblePane() {
+	this(0);
+    }
+
+    //
+    // HeaderedCollapsiblePane methods
+    //
+
+    @Override
+    public void setCollapsed(boolean collapsed) {
+	super.setCollapsed(collapsed);
+
+	if (link != null) {
+	    String text = getLinkText(collapsed);
+	    if (text != null) {
+		link.setText(text);
+	    }
+
+	    Icon icon = UIManager.getIcon(collapsed ?
+		"Tree.collapsedIcon" : "Tree.expandedIcon");
+
+	    link.setIcon(icon);
+	}
+    }
+
+    //
+    // LinkCollapsiblePane methods
+    //
+
+    public HyperlinkLabel getLink() {
+	return link;
+    }
+
+    /**
+     * Gets the text to place in the link, dependent on the state of the
+     * {@link CollapsiblePane}.
+     *
+     * @return      the text to set in the {@link HyperlinkLabel}, or {@code
+     *              null} to keep the existing text
+     */
+    public String getLinkText(boolean collapsed) {
+	// Don't change link text by default
+	return null;
+    }
+}