Mega Code Archive
Create a virtual SWT table and add 1000 entries to it every 500 ms
<![CDATA[
/*
* Create a virtual table and add 1000 entries to it every 500 ms.
*
* For a list of all SWT example snippets see
* http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
*/
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 Snippet151 {
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 ();
}
}
]]>