Get TableItem from Mouse position : Table Event « SWT « Java Tutorial

1. Java Tutorial
2. SWT
3. Table Event

/*******************************************************************************
 * Copyright (c) 2000, 2004 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;
/*
 * Table example snippet: find a table cell from mouse down (SWT.FULL_SELECTION)
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
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.TableColumn;
import org.eclipse.swt.widgets.TableItem;

public class TableItemMouse {

  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    final Table table = new Table(shell, SWT.BORDER | SWT.V_SCROLL | SWT.FULL_SELECTION);
    table.setHeaderVisible(true);
    table.setLinesVisible(true);
    final int rowCount = 64, columnCount = 4;
    for (int i = 0; i < columnCount; i++) {
      TableColumn column = new TableColumn(table, SWT.NONE);
      column.setText("Column " + i);
    }
    for (int i = 0; i < rowCount; i++) {
      TableItem item = new TableItem(table, SWT.NONE);
      for (int j = 0; j < columnCount; j++) {
        item.setText(j, "Item " + i + "-" + j);
      }
    }
    for (int i = 0; i < columnCount; i++) {
      table.getColumn(i).pack();
    }
    Point size = table.computeSize(SWT.DEFAULT, 200);
    table.setSize(size);
    shell.pack();
    table.addListener(SWT.MouseDown, new Listener() {
      public void handleEvent(Event event) {
        Point pt = new Point(event.x, event.y);
        TableItem item = table.getItem(pt);
        if (item == null)
          return;
        for (int i = 0; i < columnCount; i++) {
          Rectangle rect = item.getBounds(i);
          if (rect.contains(pt)) {
            int index = table.indexOf(item);
            System.out.println("Item " + index + "-" + i);
          }
        }
      }
    });
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }

}

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