diff snippets/control/Snippet214.d @ 119:9a1be6ff19a2

More snippets, thanks to Tom D.
author Frank Benoit <benoit@tionex.de>
date Sun, 20 Jul 2008 15:26:06 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/snippets/control/Snippet214.d	Sun Jul 20 15:26:06 2008 +0200
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+/*******************************************************************************
+ * 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
+ * D Port:
+ *     Thomas Demmer <t_demmer AT web DOT de>
+ *******************************************************************************/
+module control.Snippet214;
+
+/*
+ * Control example snippet: set a background image (a dynamic gradient)
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ *
+ * @since 3.2
+ */
+import dwt.DWT;
+
+import dwt.graphics.GC;
+import dwt.graphics.Image;
+import dwt.graphics.Rectangle;
+import dwt.layout.FillLayout;
+import dwt.layout.RowLayout;
+import dwt.widgets.Button;
+import dwt.widgets.Display;
+import dwt.widgets.Event;
+import dwt.widgets.Group;
+import dwt.widgets.Listener;
+import dwt.widgets.Shell;
+import dwt.layout.RowLayout;
+
+import dwt.dwthelper.utils;
+
+import tango.util.Convert;
+
+static Image oldImage;
+void main(String [] args) {
+    Display display = new Display ();
+    Shell shell = new Shell (display);
+    shell.setBackgroundMode (DWT.INHERIT_DEFAULT);
+    FillLayout layout1 = new FillLayout (DWT.VERTICAL);
+    layout1.marginWidth = layout1.marginHeight = 10;
+    shell.setLayout (layout1);
+    Group group = new Group (shell, DWT.NONE);
+    group.setText ("Group ");
+    RowLayout layout2 = new RowLayout (DWT.VERTICAL);
+    layout2.marginWidth = layout2.marginHeight = layout2.spacing = 10;
+    group.setLayout (layout2);
+    for (int i=0; i<8; i++) {
+        Button button = new Button (group, DWT.RADIO);
+        button.setText ("Button " ~ to!(char[])(i));
+    }
+    shell.addListener (DWT.Resize, new class() Listener {
+       public void handleEvent (Event event) {
+           Rectangle rect = shell.getClientArea ();
+           Image newImage = new Image (display, Math.max (1, rect.width), 1);
+           GC gc = new GC (newImage);
+           gc.setForeground (display.getSystemColor (DWT.COLOR_WHITE));
+           gc.setBackground (display.getSystemColor (DWT.COLOR_BLUE));
+           gc.fillGradientRectangle (rect.x, rect.y, rect.width, 1, false);
+           gc.dispose ();
+           shell.setBackgroundImage (newImage);
+           if (oldImage !is null) oldImage.dispose ();
+           oldImage = newImage;
+       }
+    });
+    shell.pack ();
+    shell.open ();
+    while (!shell.isDisposed ()) {
+        if (!display.readAndDispatch ()) display.sleep ();
+    }
+    if (oldImage !is null) oldImage.dispose ();
+    display.dispose ();
+}
+