Mercurial > projects > dwt2
diff org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet46.d @ 28:69b1fa94a4a8
Added SWT snippets
author | Frank Benoit <benoit@tionex.de> |
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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 (); +} +