1 /******************************************************************************* 2 * Copyright (c) 2000, 2016 IBM Corporation and others. 3 * 4 * This program and the accompanying materials 5 * are made available under the terms of the Eclipse Public License 2.0 6 * which accompanies this distribution, and is available at 7 * https://www.eclipse.org/legal/epl-2.0/ 8 * 9 * SPDX-License-Identifier: EPL-2.0 10 * 11 * Contributors: 12 * IBM Corporation - initial API and implementation 13 *******************************************************************************/ 14 package org.eclipse.swt.snippets; 15 16 /* 17 * GridLayout snippet: grow/shrink a wrappable Text's height to show its 18 * content as it changes 19 * 20 * For a list of all SWT example snippets see 21 * http://www.eclipse.org/swt/snippets/ 22 */ 23 import org.eclipse.swt.*; 24 import org.eclipse.swt.layout.*; 25 import org.eclipse.swt.widgets.*; 26 27 public class Snippet342 { 28 main(String[] args)29public static void main(String[] args) { 30 final int TEXT_WIDTH = 100; 31 32 Display display = new Display(); 33 final Shell shell = new Shell(display); 34 shell.setText("Snippet 342"); 35 shell.setLayout(new GridLayout()); 36 final Text text = new Text(shell, SWT.MULTI | SWT.WRAP | SWT.BORDER); 37 text.setLayoutData(new GridData(TEXT_WIDTH, SWT.DEFAULT)); 38 text.addListener(SWT.Modify, event -> { 39 int currentHeight = text.getSize().y; 40 int preferredHeight = text.computeSize(TEXT_WIDTH, SWT.DEFAULT).y; 41 if (currentHeight != preferredHeight) { 42 GridData data = (GridData)text.getLayoutData(); 43 data.heightHint = preferredHeight; 44 shell.pack(); 45 } 46 }); 47 shell.pack(); 48 shell.open(); 49 while (!shell.isDisposed()) { 50 if (!display.readAndDispatch()) display.sleep(); 51 } 52 display.dispose(); 53 } 54 55 } 56