--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/snippets/button/Snippet294.d	Fri Jul 11 21:10:38 2008 +0200
@@ -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 button.Snippet294;
+
+/* Port OK */
+import dwt.DWT;
+import dwt.graphics.Image;
+import dwt.graphics.Region;
+import dwt.layout.FillLayout;
+import dwt.widgets.Button;
+import dwt.widgets.Display;
+import dwt.widgets.Event;
+import dwt.widgets.Listener;
+import dwt.widgets.Shell;
+
+import dwt.dwthelper.utils;
+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(DWT.COLOR_DARK_RED));
+
+    Button b2 = new Button(shell, DWT.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(DWT.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();
+  }
+}