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| 17. 49. 6. Create a virtual table and add 1000 entries to it every 500 ms |
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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.Arrays;
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 TableCreate1000Entries {
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) {
TableItem item = (TableItem) e.item;
int index = table.indexOf(item);
item.setText("Item " + data[index]);
}
});
Thread thread = new Thread() {
public void run() {
int count = 0;
Random random = new Random();
while (count++ < 500) {
if (table.isDisposed())
return;
// add 10 random numbers to array and sort
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();
}
Arrays.sort(data);
display.syncExec(new Runnable() {
public void run() {
if (table.isDisposed())
return;
table.setItemCount(data.length);
table.clearAll();
}
});
try {
Thread.sleep(500);
} catch (Throwable t) {
}
}
}
};
thread.start();
shell.open();
while (!shell.isDisposed() || thread.isAlive()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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