--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet294.d	Sun Mar 22 15:17:04 2009 +0100
@@ -0,0 +1,94 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 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
+ * D Port:
+ *     Thomas Demmer <t_demmer AT web DOT de>
+ *******************************************************************************/
+module org.eclipse.swt.snippets.Snippet294;
+
+/* Port OK */
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Region;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.Shell;
+
+import java.lang.all;
+import tango.util.Convert;
+
+void main(String[] args){
+    Snippet294.main(args);
+}
+
+/*
+ * Region on a control: create a non-rectangular button
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ *
+ * @since 3.4
+ */
+
+public class Snippet294 {
+
+    static int[] circle(int r, int offsetX, int offsetY) {
+        int[] polygon = new int[8 * r + 4];
+        // x^2 + y^2 = r^2
+        for (int i = 0; i < 2 * r + 1; i++) {
+            int x = i - r;
+            int y = cast(int)Math.sqrt(cast(real)(r*r - x*x));
+            polygon[2*i] = offsetX + x;
+            polygon[2*i+1] = offsetY + y;
+            polygon[8*r - 2*i - 2] = offsetX + x;
+            polygon[8*r - 2*i - 1] = offsetY - y;
+        }
+        return polygon;
+    }
+
+    public static void main(String[] args) {
+        Display display = new Display();
+        Shell shell = new Shell(display);
+        shell.setText("Regions on a Control");
+        shell.setLayout(new FillLayout());
+        shell.setBackground(display.getSystemColor(SWT.COLOR_DARK_RED));
+
+        Button b2 = new Button(shell, SWT.PUSH);
+        b2.setText("Button with Regions");
+
+        // define a region that looks like a circle with two holes in ot
+        Region region = new Region();
+        region.add(circle(67, 87, 77));
+        region.subtract(circle(20, 87, 47));
+        region.subtract(circle(20, 87, 113));
+
+        // define the shape of the button using setRegion
+        b2.setRegion(region);
+        b2.setLocation(100,50);
+
+        b2.addListener(SWT.Selection, new class() Listener {
+                public void handleEvent(Event e) {
+                shell.close();
+                }
+                });
+
+        shell.setSize(200,200);
+        shell.open();
+
+        while (!shell.isDisposed()) {
+            if (!display.readAndDispatch())
+                display.sleep();
+        }
+        region.dispose();
+        display.dispose();
+    }
+}