--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/viewers/TreePathViewerSorter.d	Mon Mar 31 00:47:19 2008 +0200
@@ -0,0 +1,120 @@
+/*******************************************************************************
+ * Copyright (c) 2006, 2007 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.TreePathViewerSorter;
+
+import dwtx.jface.viewers.ViewerSorter;
+import dwtx.jface.viewers.TreePath;
+import dwtx.jface.viewers.Viewer;
+
+// import java.util.Arrays;
+// import java.util.Comparator;
+
+import dwt.dwthelper.utils;
+import tango.core.Array;
+
+/**
+ * A viewer sorter that is provided extra context in the form of the path of the
+ * parent element of the elements being sorted.
+ *
+ * @since 3.2
+ */
+public class TreePathViewerSorter : ViewerSorter {
+    public alias ViewerSorter.category category;
+    public alias ViewerSorter.compare compare;
+    public alias ViewerSorter.isSorterProperty isSorterProperty;
+
+    /**
+     * Provide a category for the given element that will have the given parent
+     * path when it is added to the viewer. The provided path is
+     * relative to the viewer input. The parent path will
+     * be <code>null</code> when the elements are root elements.
+     * <p>
+     * By default, the this method calls
+     * {@link ViewerSorter#category(Object)}. Subclasses may override.
+     *
+     * @param parentPath
+     *            the parent path for the element
+     * @param element
+     *            the element
+     * @return the category of the element
+     */
+    public int category(TreePath parentPath, Object element) {
+        return category(element);
+    }
+
+    /**
+     * Compare the given elements that will have the given parent
+     * path when they are added to the viewer. The provided path is
+     * relative to the viewer input. The parent path will
+     * be <code>null</code> when the elements are root elements.
+     * <p>
+     * By default, the this method calls
+     * {@link ViewerSorter#sort(Viewer, Object[])}. Subclasses may override.
+     * @param viewer the viewer
+     * @param parentPath the parent path for the two elements
+     * @param e1 the first element
+     * @param e2 the second element
+     * @return a negative number if the first element is less  than the
+     *  second element; the value <code>0</code> if the first element is
+     *  equal to the second element; and a positive
+     */
+    public int compare(Viewer viewer, TreePath parentPath, Object e1, Object e2) {
+        return compare(viewer, e1, e2);
+    }
+
+    /**
+     * Returns whether this viewer sorter would be affected
+     * by a change to the given property of the given element.
+     * The provided path is
+     * relative to the viewer input. The parent path will
+     * be <code>null</code> when the elements are root elements.
+     * <p>
+     * The default implementation of this method calls
+     * {@link ViewerSorter#isSorterProperty(Object, String)}.
+     * Subclasses may reimplement.
+     * @param parentPath the parent path of the element
+     * @param element the element
+     * @param property the property
+     * @return <code>true</code> if the sorting would be affected,
+     *    and <code>false</code> if it would be unaffected
+     */
+    public bool isSorterProperty(TreePath parentPath, Object element, String property) {
+        return isSorterProperty(element, property);
+    }
+
+    /**
+     * Sorts the given elements in-place, modifying the given array.
+     * The provided path is
+     * relative to the viewer input. The parent path will
+     * be <code>null</code> when the elements are root elements.
+     * <p>
+     * The default implementation of this method uses the
+     * java.util.Arrays#sort algorithm on the given array,
+     * calling {@link #compare(Viewer, TreePath, Object, Object)} to compare elements.
+     * </p>
+     * <p>
+     * Subclasses may reimplement this method to provide a more optimized implementation.
+     * </p>
+     *
+     * @param viewer the viewer
+     * @param parentPath the parent path of the given elements
+     * @param elements the elements to sort
+     */
+    public void sort(Viewer viewer, TreePath parentPath, Object[] elements) {
+        tango.core.Array.sort(elements, delegate int (Object a, Object b) {
+                return compare(viewer, parentPath, a, b);
+            }
+        );
+    }
+}