--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/draw2d/PolygonDecoration.d	Sun Aug 03 00:52:14 2008 +0200
@@ -0,0 +1,159 @@
+/*******************************************************************************
+ * 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 dwtx.draw2d.PolygonDecoration;
+
+import dwt.dwthelper.utils;
+
+
+
+import dwt.graphics.Color;
+import dwtx.draw2d.geometry.Point;
+import dwtx.draw2d.geometry.PointList;
+import dwtx.draw2d.geometry.Transform;
+import dwtx.draw2d.RotatableDecoration;
+import dwtx.draw2d.Polygon;
+
+/**
+ * A rotatable, polygon shaped decoration most commonly used for decorating the ends of
+ * {@link dwtx.draw2d.Polyline polylines}.
+ */
+public class PolygonDecoration
+    : Polygon
+    , RotatableDecoration
+{
+
+/** Template for a triangle that points to the right when the rotation angle is 0 */
+public static const PointList TRIANGLE_TIP;
+/** Template for a triangle that points to the left when the rotation angle is 0 */
+public static const PointList INVERTED_TRIANGLE_TIP;
+
+static this() {
+    TRIANGLE_TIP = new PointList();
+    INVERTED_TRIANGLE_TIP = new PointList();
+    TRIANGLE_TIP.addPoint(0, 0);
+    TRIANGLE_TIP.addPoint(-1, 1);
+    TRIANGLE_TIP.addPoint(-1, -1);
+
+    INVERTED_TRIANGLE_TIP.addPoint(0, 1);
+    INVERTED_TRIANGLE_TIP.addPoint(0, -1);
+    INVERTED_TRIANGLE_TIP.addPoint(-1, 0);
+}
+
+private Point location;
+private PointList template_;
+private Transform transform;
+
+/**
+ * Constructs a PolygonDecoration. Defaults the PolygonDecoration to fill its region
+ * with black.
+ *
+ * @since 2.0
+ */
+public this() {
+    location = new Point();
+    template_ = TRIANGLE_TIP;
+    transform = new Transform();
+    setFill(true);
+    setScale(7, 3);
+}
+
+/**
+ * @see dwtx.draw2d.IFigure#getBackgroundColor()
+ */
+public Color getLocalBackgroundColor() {
+    if (super.getLocalBackgroundColor() is null)
+        return getForegroundColor();
+    return super.getLocalBackgroundColor();
+}
+
+/**
+ * Returns the points in the PolygonDecoration as a PointList.
+ *
+ * @return the points in this PolygonDecoration
+ * @since 2.0
+ */
+public PointList getPoints() {
+    if (points is null) {
+        points = new PointList();
+        for (int i = 0; i < template_.size(); i++)
+            points.addPoint(transform.getTransformed(template_.getPoint(i)));
+    }
+    return points;
+}
+
+/**
+ * Sets the location of this PolygonDecoration.
+ * @param p the new location
+ */
+public void setLocation(Point p) {
+    points = null;
+    bounds = null;
+    location.setLocation(p);
+    transform.setTranslation(p.x, p.y);
+}
+
+/**
+ * Sets the PolygonDecorations point template_ to the passed PointList. This template_ is an
+ * outline of the PolygonDecoration's region. (The default value is TRIANGLE_TIP which is
+ * a triangle whose tip is pointing to the right).
+ *
+ * @param pl the PointList outline to use as the PolygonDecoration's region
+ * @since 2.0
+ */
+public void setTemplate(PointList pl) {
+    erase();
+    template_ = pl;
+    points = null;
+    bounds = null;
+    repaint();
+}
+
+/**
+ * Sets the amount of scaling to be done along X and Y axes on the PolygonDecoration's
+ * template_.
+ *
+ * @param x X scaling
+ * @param y Y scaling
+ * @since 2.0
+ */
+public void setScale(double x, double y) {
+    points = null;
+    bounds = null;
+    transform.setScale(x, y);
+}
+
+/**
+ * Sets the rotation of this decoration so that the decoration points toward the
+ * given reference point.
+ * @param ref the reference point
+ */
+public void setReferencePoint(Point ref_) {
+    Point pt = Point.SINGLETON;
+    pt.setLocation(ref_);
+    pt.negate().translate(location);
+    setRotation(Math.atan2(pt.y, pt.x));
+}
+
+/**
+ * Sets the angle by which rotation is to be done on the PolygonDecoration.
+ *
+ * @param angle Angle of rotation
+ * @since 2.0
+ */
+public void setRotation(double angle) {
+    points = null;
+    bounds = null;
+    transform.setRotation(angle);
+}
+
+}