Table SetData Event : Table Event « SWT « Java Tutorial






Table SetData Event
/*******************************************************************************
 * 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();
  }
}








17.52.Table Event
17.52.1.Table SetData EventTable SetData Event
17.52.2.Add Table Selection Listener and Get Selected TableItemAdd Table Selection Listener and Get Selected TableItem
17.52.3.Add Default Table Selection Listener and Get the Selected TableItemAdd Default Table Selection Listener and Get the Selected TableItem
17.52.4.Table measure item listenerTable measure item listener
17.52.5.Table events: MeasureItem, PaintItem and EraseItemTable events: MeasureItem, PaintItem and EraseItem
17.52.6.Table paint item listenerTable paint item listener
17.52.7.TableColumn Move ListenerTableColumn Move Listener
17.52.8.Find a table cell from mouse down (works for any table style)Find a table cell from mouse down (works for any table style)
17.52.9.Get TableItem from Mouse positionGet TableItem from Mouse position
17.52.10.Table Selection EventTable Selection Event
17.52.11.Make a dropped data type depend on a target item in tableMake a dropped data type depend on a target item in table