--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/viewers/ITreeViewerListener.d	Mon Mar 31 00:47:19 2008 +0200
@@ -0,0 +1,35 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module dwtx.jface.viewers.ITreeViewerListener;
+
+import dwtx.jface.viewers.TreeExpansionEvent;
+
+/**
+ * A listener which is notified when a tree viewer expands or collapses
+ * a node.
+ */
+public interface ITreeViewerListener {
+    /**
+     * Notifies that a node in the tree has been collapsed.
+     *
+     * @param event event object describing details
+     */
+    public void treeCollapsed(TreeExpansionEvent event);
+
+    /**
+     * Notifies that a node in the tree has been expanded.
+     *
+     * @param event event object describing details
+     */
+    public void treeExpanded(TreeExpansionEvent event);
+}