Mercurial > projects > dwt-samples
view dwtsnippets/gc/Snippet66.d @ 50:6b88d308c210
Ports of several gc Snippets: 10,66,207,215
215 has a crash bug currently.
author | Bill Baxter <bill@billbaxter.com> |
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date | Mon, 07 Apr 2008 01:21:04 +0900 |
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/******************************************************************************* * 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 * Port to the D programming language: * Bill Baxter <bill@billbaxter.com> *******************************************************************************/ module dwtsnippets.gc.Snippet66; /* * GC example snippet: implement a simple scribble program * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */ import dwt.DWT; import dwt.graphics.GC; import dwt.widgets.Display; import dwt.widgets.Shell; import dwt.widgets.Listener; import dwt.widgets.Event; void main () { Display display = new Display (); final Shell shell = new Shell (display); Listener listener = new class() Listener { int lastX = 0, lastY = 0; public void handleEvent (Event event) { switch (event.type) { case DWT.MouseMove: if ((event.stateMask & DWT.BUTTON1) == 0) break; GC gc = new GC (shell); gc.drawLine (lastX, lastY, event.x, event.y); gc.dispose (); //FALL THROUGH case DWT.MouseDown: lastX = event.x; lastY = event.y; break; } } }; shell.addListener (DWT.MouseDown, listener); shell.addListener (DWT.MouseMove, listener); shell.open (); while (!shell.isDisposed ()) { if (!display.readAndDispatch ()) display.sleep (); } display.dispose (); }