package com.cxy.redisclient;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowData;
import org.eclipse.swt.layout.RowLayout;
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 TableWithPageSize {
static final int PAGE_SIZE = 64;
static final int COUNT = 100000;
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new RowLayout(SWT.VERTICAL));
final Table table = new Table(shell, SWT.VIRTUAL | SWT.BORDER);
table.addListener(SWT.SetData, new Listener() {
public void handleEvent(Event event) {
TableItem item = (TableItem) event.item;
int index = table.indexOf(item);
int start = index / PAGE_SIZE * PAGE_SIZE;
int end = Math.min(start + PAGE_SIZE, table.getItemCount());
for (int i = start; i < end; i++) {
item = table.getItem(i);
item.setText("Item " + i);
}
}
});
table.setLayoutData(new RowData(200, 200));
long t1 = System.currentTimeMillis();
table.setItemCount(COUNT);
long t2 = System.currentTimeMillis();
System.out.println("Items: " + COUNT + ", Time: " + (t2 - t1) + " (ms) [page=" + PAGE_SIZE
+ "]");
shell.layout();
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}