TableSetDataEvent.java Source code

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Here is the source code for TableSetDataEvent.java

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/*******************************************************************************
 * Copyright (c) 2000, 2005 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
 *******************************************************************************/
//package org.eclipse.swt.snippets;
/*
 * Create a virtual table and add 1000 entries to it every 500 ms.
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 * 
 * @since 3.0
 */
import java.util.Random;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;

public class TableSetDataEvent {

    static int[] data = new int[0];

    public static void main(String[] args) {
        final Display display = new Display();
        Shell shell = new Shell(display);
        shell.setLayout(new FillLayout());
        final Table table = new Table(shell, SWT.BORDER | SWT.VIRTUAL);
        table.addListener(SWT.SetData, new Listener() {
            public void handleEvent(Event e) {
                System.out.println(e);
                TableItem item = (TableItem) e.item;
                int index = table.indexOf(item);
                item.setText("Item " + data[index]);
            }
        });
        int count = 0;
        Random random = new Random();
        while (count++ < 50) {
            int grow = 10;
            int[] newData = new int[data.length + grow];
            System.arraycopy(data, 0, newData, 0, data.length);
            int index = data.length;
            data = newData;
            for (int j = 0; j < grow; j++) {
                data[index++] = random.nextInt();
            }

            table.setItemCount(data.length);
            table.clearAll();
        }
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}