Mercurial > projects > dwt2
view org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet275.d @ 112:9f4c18c268b2
Update to compile and execute with dmd 2.052.
author | kntroh |
---|---|
date | Wed, 16 Mar 2011 21:53:53 +0900 |
parents | 69b1fa94a4a8 |
children | 536e43f63c81 |
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/******************************************************************************* * Copyright (c) 2000, 2007 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: * Bill Baxter <wbaxter> at gmail com *******************************************************************************/ module org.eclipse.swt.snippets.Snippet275; /* * Canvas snippet: update a portion of a Canvas frequently * * 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.GC; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Canvas; import java.lang.all; version(Tango){ import tango.util.Convert; } else { // Phobos import std.conv; } static String value; public static void main () { int INTERVAL = 888; Display display = new Display (); Image image = new Image (display, 750, 750); GC gc = new GC (image); gc.setBackground (display.getSystemColor (SWT.COLOR_RED)); gc.fillRectangle (image.getBounds ()); gc.dispose (); Shell shell = new Shell (display); shell.setBounds (10, 10, 790, 790); Canvas canvas = new Canvas (shell, SWT.NONE); canvas.setBounds (10, 10, 750, 750); void onPaint (Event event) { value = to!(String)(System.currentTimeMillis ()); event.gc.drawImage (image, 0, 0); event.gc.drawString (value, 10, 10, true); } canvas.addListener (SWT.Paint, dgListener(&onPaint)); display.timerExec (INTERVAL, new class Runnable { void run () { if (canvas.isDisposed ()) return; // canvas.redraw (); // <-- bad, damages more than is needed GC gc = new GC (canvas); Point extent = gc.stringExtent (value ~ '0'); gc.dispose (); canvas.redraw (10, 10, extent.x, extent.y, false); display.timerExec (INTERVAL, this); } }); shell.open (); while (!shell.isDisposed ()){ if (!display.readAndDispatch ()) display.sleep (); } image.dispose (); display.dispose (); }