examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet7.java

/*******************************************************************************
 * Copyright (c) 2000, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.snippets;

/*
 * example snippet: create a table (lazy)
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public class Snippet7 {

public static void main (String [] args) {
	final Display display = new Display ();
	final Image image = new Image (display, 16, 16);
	GC gc = new GC (image);
	gc.setBackground (display.getSystemColor (SWT.COLOR_RED));
	gc.fillRectangle (image.getBounds ());
	gc.dispose ();
	final Shell shell = new Shell (display);
	shell.setText ("Lazy Table");
	shell.setLayout (new FillLayout ());
	final Table table = new Table (shell, SWT.BORDER | SWT.MULTI);
	table.setSize (200, 200);
	Thread thread = new Thread () {
		@Override
		public void run () {
			for (int i=0; i<20000; i++) {
				if (table.isDisposed ()) return;
				final int [] index = new int [] {i};
				display.syncExec (() -> {
					if (table.isDisposed ()) return;
					TableItem item = new TableItem (table, SWT.NONE);
					item.setText ("Table Item " + index [0]);
					item.setImage (image);
				});
			}
		}
	};
	thread.start ();
	shell.setSize (200, 200);
	shell.open ();
	while (!shell.isDisposed ()) {
		if (!display.readAndDispatch ()) display.sleep ();
	}
	image.dispose ();
	display.dispose ();
}
}