--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.jface/src/org/eclipse/jface/viewers/TreeViewerColumn.d	Sat Mar 14 18:23:29 2009 +0100
@@ -0,0 +1,96 @@
+/*******************************************************************************
+ * Copyright (c) 2006 Tom Schindl 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:
+ *     Tom Schindl - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ ******************************************************************************/
+
+module org.eclipse.jface.viewers.TreeViewerColumn;
+
+import org.eclipse.jface.viewers.ViewerColumn;
+import org.eclipse.jface.viewers.TreeViewer;
+
+import org.eclipse.swt.widgets.Tree;
+import org.eclipse.swt.widgets.TreeColumn;
+
+import java.lang.all;
+
+/**
+ * ViewerColumn implementation for TreeViewer to enable column-specific label
+ * providers and editing support.
+ *
+ * @since 3.3
+ *
+ */
+public final class TreeViewerColumn : ViewerColumn {
+    private TreeColumn column;
+
+    /**
+     * Creates a new viewer column for the given {@link TreeViewer} on a new
+     * {@link TreeColumn} with the given style bits. The column is inserted at
+     * the given index into the list of columns.
+     *
+     * @param viewer
+     *            the tree viewer to which this column belongs
+     * @param style
+     *            the style bits used to create the column, for applicable style bits
+     *            see {@link TreeColumn}
+     * @see TreeColumn#TreeColumn(Tree, int)
+     */
+    public this(TreeViewer viewer, int style) {
+        this(viewer, style, -1);
+    }
+
+    /**
+     * Creates a new viewer column for the given {@link TreeViewer} on a new
+     * {@link TreeColumn} with the given style bits. The column is added at the
+     * end of the list of columns.
+     *
+     * @param viewer
+     *            the tree viewer to which this column belongs
+     * @param style
+     *            the style bits used to create the column, for applicable style bits
+     *            see {@link TreeColumn}
+     * @param index
+     *            the index at which to place the newly created column
+     * @see TreeColumn#TreeColumn(Tree, int, int)
+     */
+    public this(TreeViewer viewer, int style, int index) {
+        this(viewer, createColumn(viewer.getTree(), style, index));
+    }
+
+    /**
+     * Creates a new viewer column for the given {@link TreeViewer} on the given
+     * {@link TreeColumn}.
+     *
+     * @param viewer
+     *            the tree viewer to which this column belongs
+     * @param column
+     *            the underlying tree column
+     */
+    public this(TreeViewer viewer, TreeColumn column) {
+        super(viewer, column);
+        this.column = column;
+    }
+
+    private static TreeColumn createColumn(Tree table, int style, int index) {
+        if (index >= 0) {
+            return new TreeColumn(table, style, index);
+        }
+
+        return new TreeColumn(table, style);
+    }
+
+    /**
+     * @return the underlying SWT column
+     */
+    public TreeColumn getColumn() {
+        return column;
+    }
+}