Mercurial > projects > dwt2
diff org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet130a.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 | 4e5843b771cc |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet130a.d Sun Mar 22 15:17:04 2009 +0100 @@ -0,0 +1,114 @@ +/******************************************************************************* + * 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.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 org.eclipse.swt.SWT; +import org.eclipse.swt.events.SelectionAdapter; +import org.eclipse.swt.events.SelectionEvent; +import org.eclipse.swt.layout.GridLayout; +import org.eclipse.swt.layout.GridData; +import org.eclipse.swt.widgets.Shell; +import org.eclipse.swt.widgets.Button; +import org.eclipse.swt.widgets.Display; +import org.eclipse.swt.widgets.Shell; +import org.eclipse.swt.widgets.Text; + + +import org.eclipse.swt.custom.BusyIndicator; + +import java.lang.all; + +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, SWT.MULTI | DWT.BORDER | DWT.V_SCROLL); + text.setLayoutData(new GridData(GridData.FILL_BOTH)); + int[] nextId = new int[1]; + Button b = new Button(shell, SWT.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)); + } +}