| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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: draw images on right side of table item |
| * |
| * For more info on custom-drawing TableItem and TreeItem content see |
| * http://www.eclipse.org/articles/article.php?file=Article-CustomDrawingTableAndTreeItems/index.html |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| * |
| * @since 3.2 |
| */ |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet230 { |
| |
| public static void main(String [] args) { |
| Display display = new Display(); |
| final Image image = display.getSystemImage(SWT.ICON_INFORMATION); |
| Shell shell = new Shell(display); |
| shell.setText("Images on the right side of the TableItem"); |
| shell.setLayout(new FillLayout ()); |
| Table table = new Table(shell, SWT.MULTI | SWT.FULL_SELECTION); |
| table.setHeaderVisible(true); |
| table.setLinesVisible(true); |
| int columnCount = 3; |
| for (int i=0; i<columnCount; i++) { |
| TableColumn column = new TableColumn(table, SWT.NONE); |
| column.setText("Column " + i); |
| } |
| int itemCount = 8; |
| for(int i = 0; i < itemCount; i++) { |
| TableItem item = new TableItem(table, SWT.NONE); |
| item.setText(new String[] {"item "+i+" a", "item "+i+" b", "item "+i+" c"}); |
| } |
| /* |
| * NOTE: MeasureItem, PaintItem and EraseItem are called repeatedly. |
| * Therefore, it is critical for performance that these methods be |
| * as efficient as possible. |
| */ |
| Listener paintListener = new Listener() { |
| public void handleEvent(Event event) { |
| switch(event.type) { |
| case SWT.MeasureItem: { |
| Rectangle rect = image.getBounds(); |
| event.width += rect.width; |
| event.height = Math.max(event.height, rect.height + 2); |
| break; |
| } |
| case SWT.PaintItem: { |
| int x = event.x + event.width; |
| Rectangle rect = image.getBounds(); |
| int offset = Math.max(0, (event.height - rect.height) / 2); |
| event.gc.drawImage(image, x, event.y + offset); |
| break; |
| } |
| } |
| } |
| }; |
| table.addListener(SWT.MeasureItem, paintListener); |
| table.addListener(SWT.PaintItem, paintListener); |
| |
| for(int i = 0; i < columnCount; i++) { |
| table.getColumn(i).pack(); |
| } |
| shell.setSize(500, 200); |
| shell.open(); |
| while(!shell.isDisposed ()) { |
| if(!display.readAndDispatch()) display.sleep(); |
| } |
| if(image != null) image.dispose(); |
| display.dispose(); |
| } |
| } |