org.eclipse.swt.snippets.Snippet7.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet7.java

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/*******************************************************************************
 * 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();
    }
}