| /******************************************************************************* |
| * 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; |
| |
| /* |
| * FormLayout example snippet: center a label and single line text using a form layout |
| * |
| * 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.widgets.*; |
| import org.eclipse.swt.layout.*; |
| |
| public class Snippet69 { |
| |
| public static void main (String [] args) { |
| Display display = new Display (); |
| Shell shell = new Shell (display); |
| Label label = new Label (shell, SWT.NONE | SWT.BORDER); |
| label.setText ("Name"); |
| Text text = new Text (shell, SWT.NONE); |
| |
| FormLayout layout = new FormLayout (); |
| layout.marginWidth = layout.marginHeight = 5; |
| shell.setLayout (layout); |
| |
| GC gc = new GC (text); |
| FontMetrics fm = gc.getFontMetrics (); |
| int charWidth = fm.getAverageCharWidth (); |
| int width = text.computeSize (charWidth * 8, SWT.DEFAULT).x; |
| gc.dispose (); |
| FormData data = new FormData (width, SWT.DEFAULT); |
| text.setLayoutData (data); |
| data.left = new FormAttachment (label, 5); |
| data.top = new FormAttachment (label, 0, SWT.CENTER); |
| |
| shell.open (); |
| while (!shell.isDisposed ()) { |
| if (!display.readAndDispatch ()) display.sleep (); |
| } |
| display.dispose (); |
| } |
| } |