Mercurial > projects > dwt2
view org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet130.d @ 125:c43718956f21 default tip
Updated the snippets status.
author | Jacob Carlborg <doob@me.com> |
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date | Thu, 11 Aug 2011 19:55:14 +0200 |
parents | 536e43f63c81 |
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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 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 java.lang.Thread; void main() { Display display = new Display(); Shell shell = new Shell(display); shell.setLayout(new GridLayout()); Text text = new Text(shell, SWT.MULTI | SWT.BORDER | SWT.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(new class Runnable { public void run() { if (text.isDisposed()) return; text.append(Format("\nStart long running task {}", id)); } }); // display.syncExec /* * This crashes when more than 1 thread gets created. THD for (int i = 0; i < 100000; i++) { if (display.isDisposed()) return; getDwtLogger().info(__FILE__, __LINE__, "do task that takes a long time in a separate thread {}", id); } */ // This runs fine for (int i = 0; i < 6; i++) { if (display.isDisposed()) return; getDwtLogger().info( __FILE__, __LINE__, "do task that takes a long time in a separate thread {} {}/6", id, i); Thread.sleep(500); } if (display.isDisposed()) return; display.syncExec(new class Runnable { public void run() { if (text.isDisposed()) return; text.append(Format("\nCompleted long running task {}", id)); } }); // display.syncExec 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(); } void printStart(Text text, int id ) { if (text.isDisposed()) return; getDwtLogger().info( __FILE__, __LINE__, "Start long running task {}", id ); text.append(Format("\nStart long running task {}", id)); } void printEnd(Text text, int id ) { if (text.isDisposed()) return; getDwtLogger().info( __FILE__, __LINE__, "Completed long running task {}", id ); text.append(Format("\nCompleted long running task {}", id)); }