--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.draw2d/src/org/eclipse/draw2d/BendpointConnectionRouter.d	Sat Mar 14 18:23:29 2009 +0100
@@ -0,0 +1,119 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 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 org.eclipse.draw2d.BendpointConnectionRouter;
+
+import java.lang.all;
+
+import org.eclipse.draw2d.geometry.Point;
+import org.eclipse.draw2d.geometry.PointList;
+import org.eclipse.draw2d.geometry.PrecisionPoint;
+import org.eclipse.draw2d.AbstractRouter;
+import org.eclipse.draw2d.Connection;
+import org.eclipse.draw2d.Bendpoint;
+
+/**
+ * Routes {@link Connection}s through a <code>List</code> of {@link Bendpoint Bendpoints}.
+ */
+public class BendpointConnectionRouter
+    : AbstractRouter
+{
+
+private Map constraints;
+
+private static PrecisionPoint A_POINT_;
+private static PrecisionPoint A_POINT(){
+    if( A_POINT_ is null ){
+        synchronized( BendpointConnectionRouter.classinfo ){
+            if( A_POINT_ is null ){
+                A_POINT_ = new PrecisionPoint();
+            }
+        }
+    }
+    return A_POINT_;
+}
+
+public this(){
+    constraints = new HashMap(11);
+}
+
+/**
+ * Gets the constraint for the given {@link Connection}.
+ *
+ * @param connection The connection whose constraint we are retrieving
+ * @return The constraint
+ */
+public Object getConstraint(Connection connection) {
+    return constraints.get(cast(Object)connection);
+}
+
+/**
+ * Removes the given connection from the map of constraints.
+ *
+ * @param connection The connection to remove
+ */
+public void remove(Connection connection) {
+    constraints.remove(cast(Object)connection);
+}
+
+/**
+ * Routes the {@link Connection}.  Expects the constraint to be a List
+ * of {@link org.eclipse.draw2d.Bendpoint Bendpoints}.
+ *
+ * @param conn The connection to route
+ */
+public void route(Connection conn) {
+    PointList points = conn.getPoints();
+    points.removeAllPoints();
+
+    List bendpoints = cast(List)getConstraint(conn);
+    if (bendpoints is null)
+        bendpoints = Collections.EMPTY_LIST;
+
+    Point ref1, ref2;
+
+    if (bendpoints.isEmpty()) {
+        ref1 = conn.getTargetAnchor().getReferencePoint();
+        ref2 = conn.getSourceAnchor().getReferencePoint();
+    } else {
+        ref1 = new Point((cast(Bendpoint)bendpoints.get(0)).getLocation());
+        conn.translateToAbsolute(ref1);
+        ref2 = new Point((cast(Bendpoint)bendpoints.get(bendpoints.size() - 1)).getLocation());
+        conn.translateToAbsolute(ref2);
+    }
+
+    A_POINT.setLocation(conn.getSourceAnchor().getLocation(ref1));
+    conn.translateToRelative(A_POINT);
+    points.addPoint(A_POINT);
+
+    for (int i = 0; i < bendpoints.size(); i++) {
+        Bendpoint bp = cast(Bendpoint)bendpoints.get(i);
+        points.addPoint(bp.getLocation());
+    }
+
+    A_POINT.setLocation(conn.getTargetAnchor().getLocation(ref2));
+    conn.translateToRelative(A_POINT);
+    points.addPoint(A_POINT);
+    conn.setPoints(points);
+}
+
+/**
+ * Sets the constraint for the given {@link Connection}.
+ *
+ * @param connection The connection whose constraint we are setting
+ * @param constraint The constraint
+ */
+public void setConstraint(Connection connection, Object constraint) {
+    constraints.put(cast(Object)connection, constraint);
+}
+
+}