| /******************************************************************************* |
| * Copyright (c) 2000, 2016 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; |
| |
| /* |
| * Control example snippet: update a status line when an item is armed |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| * |
| * @since 3.0 |
| */ |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet152 { |
| |
| public static void main(String[] args) { |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| FormLayout layout = new FormLayout(); |
| shell.setLayout(layout); |
| final Label label = new Label(shell, SWT.BORDER); |
| Listener armListener = event -> { |
| MenuItem item = (MenuItem) event.widget; |
| label.setText(item.getText()); |
| label.update(); |
| }; |
| Listener showListener = event -> { |
| Menu menu = (Menu) event.widget; |
| MenuItem item = menu.getParentItem(); |
| if (item != null) { |
| label.setText(item.getText()); |
| label.update(); |
| } |
| }; |
| Listener hideListener = event -> { |
| label.setText(""); |
| label.update(); |
| }; |
| FormData labelData = new FormData(); |
| labelData.left = new FormAttachment(0); |
| labelData.right = new FormAttachment(100); |
| labelData.bottom = new FormAttachment(100); |
| label.setLayoutData(labelData); |
| Menu menuBar = new Menu(shell, SWT.BAR); |
| shell.setMenuBar(menuBar); |
| MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE); |
| fileItem.setText("File"); |
| fileItem.addListener(SWT.Arm, armListener); |
| MenuItem editItem = new MenuItem(menuBar, SWT.CASCADE); |
| editItem.setText("Edit"); |
| editItem.addListener(SWT.Arm, armListener); |
| Menu fileMenu = new Menu(shell, SWT.DROP_DOWN); |
| fileMenu.addListener(SWT.Hide, hideListener); |
| fileMenu.addListener(SWT.Show, showListener); |
| fileItem.setMenu(fileMenu); |
| String[] fileStrings = { "New", "Close", "Exit" }; |
| for (int i = 0; i < fileStrings.length; i++) { |
| MenuItem item = new MenuItem(fileMenu, SWT.PUSH); |
| item.setText(fileStrings[i]); |
| item.addListener(SWT.Arm, armListener); |
| } |
| Menu editMenu = new Menu(shell, SWT.DROP_DOWN); |
| editMenu.addListener(SWT.Hide, hideListener); |
| editMenu.addListener(SWT.Show, showListener); |
| String[] editStrings = { "Cut", "Copy", "Paste" }; |
| editItem.setMenu(editMenu); |
| for (int i = 0; i < editStrings.length; i++) { |
| MenuItem item = new MenuItem(editMenu, SWT.PUSH); |
| item.setText(editStrings[i]); |
| item.addListener(SWT.Arm, armListener); |
| } |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) display.sleep(); |
| } |
| display.dispose(); |
| } |
| |
| } |