Mercurial > projects > dwt-samples
view snippets/busyindicator/Snippet130a.d @ 117:8cdaac0dc743
Added more snippets from TomD
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 12 Jul 2008 20:09:06 +0200 |
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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 * D Port: * Thomas Demmer <t_demmer AT web DOT de> *******************************************************************************/ module busyindicator.Snippet130; /* * BusyIndicator example snippet: display busy cursor during long running task * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */ import dwt.DWT; import dwt.events.SelectionAdapter; import dwt.events.SelectionEvent; import dwt.layout.GridLayout; import dwt.layout.GridData; import dwt.widgets.Shell; import dwt.widgets.Button; import dwt.widgets.Display; import dwt.widgets.Shell; import dwt.widgets.Text; import dwt.custom.BusyIndicator; import dwt.dwthelper.utils; import dwt.dwthelper.Runnable; import dwt.dwthelper.System; import tango.core.Thread; import tango.io.Stdout; import tango.util.Convert; import tango.util.log.Trace; void main(String[] args){ Snippet130.main(args); } public class Snippet130 { public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setLayout(new GridLayout()); Text text = new Text(shell, DWT.MULTI | DWT.BORDER | DWT.V_SCROLL); text.setLayoutData(new GridData(GridData.FILL_BOTH)); int[] nextId = new int[1]; Button b = new Button(shell, DWT.PUSH); b.setText("invoke long running job"); b.addSelectionListener(new class() SelectionAdapter { public void widgetSelected(SelectionEvent e) { Runnable longJob = new class() Runnable { bool done = false; int id; public void run() { Thread thread = new Thread({ id = nextId[0]++; display.syncExec( dgRunnable( &printStart, text, id )); for (int i = 0; i < 6; i++) { if (display.isDisposed()) return; Trace.formatln("do task that takes a long time in a separate thread {} {}/6", id, i); Thread.sleep(0.500); } /* for (int i = 0; i < 100000; i++) { if (display.isDisposed()) return; Stdout.formatln("do task that takes a long time in a separate thread {}", id); } */ if (display.isDisposed()) return; display.syncExec( dgRunnable( &printEnd, text, id )); done = true; display.wake(); }); // thread = ... thread.start(); while (!done && !shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } } }; // Runnable longJob = ... BusyIndicator.showWhile(display, longJob); } // widgetSelected(); }); // addSelectionListener shell.setSize(250, 150); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } private void printStart(Text text, int id ) { if (text.isDisposed()) return; Trace.formatln( "Start long running task {}", id ); text.append("\nStart long running task "~to!(char[])(id)); } private void printEnd(Text text, int id ) { if (text.isDisposed()) return; Trace.formatln( "Completed long running task {}", id ); text.append("\nCompleted long running task "~to!(char[])(id)); } }