/******************************************************************************* * 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; /* * Tool Tips example snippet: create fake tool tips for items in a table * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */ import org.eclipse.swt.*; import org.eclipse.swt.graphics.*; import org.eclipse.swt.layout.*; import org.eclipse.swt.widgets.*; public class Snippet125 { public static void main (String[] args) { final Display display = new Display (); final Shell shell = new Shell (display); shell.setLayout (new FillLayout ()); final Table table = new Table (shell, SWT.BORDER); for (int i = 0; i < 20; i++) { TableItem item = new TableItem (table, SWT.NONE); item.setText ("item " + i); } // Disable native tooltip table.setToolTipText (""); // Implement a "fake" tooltip final Listener labelListener = new Listener () { @Override public void handleEvent (Event event) { Label label = (Label)event.widget; Shell shell = label.getShell (); switch (event.type) { case SWT.MouseDown: Event e = new Event (); e.item = (TableItem) label.getData ("_TABLEITEM"); // Assuming table is single select, set the selection as if // the mouse down event went through to the table table.setSelection (new TableItem [] {(TableItem) e.item}); table.notifyListeners (SWT.Selection, e); shell.dispose (); table.setFocus(); break; case SWT.MouseExit: shell.dispose (); break; } } }; Listener tableListener = new Listener () { Shell tip = null; Label label = null; @Override public void handleEvent (Event event) { switch (event.type) { case SWT.Dispose: case SWT.KeyDown: case SWT.MouseMove: { if (tip == null) break; tip.dispose (); tip = null; label = null; break; } case SWT.MouseHover: { TableItem item = table.getItem (new Point (event.x, event.y)); if (item != null) { if (tip != null && !tip.isDisposed ()) tip.dispose (); tip = new Shell (shell, SWT.ON_TOP | SWT.NO_FOCUS | SWT.TOOL); tip.setBackground (display.getSystemColor (SWT.COLOR_INFO_BACKGROUND)); FillLayout layout = new FillLayout (); layout.marginWidth = 2; tip.setLayout (layout); label = new Label (tip, SWT.NONE); label.setForeground (display.getSystemColor (SWT.COLOR_INFO_FOREGROUND)); label.setBackground (display.getSystemColor (SWT.COLOR_INFO_BACKGROUND)); label.setData ("_TABLEITEM", item); label.setText (item.getText ()); label.addListener (SWT.MouseExit, labelListener); label.addListener (SWT.MouseDown, labelListener); Point size = tip.computeSize (SWT.DEFAULT, SWT.DEFAULT); Rectangle rect = item.getBounds (0); Point pt = table.toDisplay (rect.x, rect.y); tip.setBounds (pt.x, pt.y, size.x, size.y); tip.setVisible (true); } } } } }; table.addListener (SWT.Dispose, tableListener); table.addListener (SWT.KeyDown, tableListener); table.addListener (SWT.MouseMove, tableListener); table.addListener (SWT.MouseHover, tableListener); shell.pack (); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }