diff org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet46.d @ 28:69b1fa94a4a8

Added SWT snippets
author Frank Benoit <benoit@tionex.de>
date Sun, 22 Mar 2009 15:17:04 +0100
parents
children 536e43f63c81
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet46.d	Sun Mar 22 15:17:04 2009 +0100
@@ -0,0 +1,78 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 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.Snippet46;
+
+/*
+ * Composite example snippet: intercept mouse events (drag a button with the mouse)
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ */
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+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 org.eclipse.swt.layout.FillLayout;
+
+import java.lang.all;
+
+void main (String [] args) {
+    Display display = new Display ();
+    Shell shell = new Shell (display);
+    Composite composite = new Composite (shell, SWT.NONE);
+    composite.setEnabled (false);
+    composite.setLayout (new FillLayout ());
+    Button button = new Button (composite, SWT.PUSH);
+    button.setText ("Button");
+    composite.pack ();
+    composite.setLocation (10, 10);
+    Point [] offset = new Point [1];
+    Listener listener = new class() Listener{
+        public void handleEvent (Event event) {
+            switch (event.type) {
+                case SWT.MouseDown:
+                Rectangle rect = composite.getBounds ();
+                if (rect.contains (event.x, event.y)) {
+                    Point pt1 = composite.toDisplay (0, 0);
+                    Point pt2 = shell.toDisplay (event.x, event.y);
+                    offset [0] = new Point (pt2.x - pt1.x, pt2.y - pt1.y);
+                }
+                break;
+                case SWT.MouseMove:
+                if (offset [0] !is null) {
+                    Point pt = offset [0];
+                    composite.setLocation (event.x - pt.x, event.y - pt.y);
+                }
+                break;
+                case SWT.MouseUp:
+                offset [0] = null;
+                break;
+            }
+        }
+    };
+    shell.addListener (SWT.MouseDown, listener);
+    shell.addListener (SWT.MouseUp, listener);
+    shell.addListener (SWT.MouseMove, listener);
+    shell.setSize (300, 300);
+    shell.open ();
+    while (!shell.isDisposed ()) {
+        if (!display.readAndDispatch ()) display.sleep ();
+    }
+    display.dispose ();
+}
+