| /******************************************************************************* |
| * Copyright (c) 2000, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Lars Vogel <Lars.Vogel@vogella.com> - Bug 502845 |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| |
| /* |
| * Tree example snippet: limit selection to items that match a pattern |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| */ |
| |
| import static org.eclipse.swt.events.SelectionListener.*; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet80 { |
| |
| public static void main(String[] args) { |
| final Display display = new Display(); |
| final Shell shell = new Shell(display); |
| shell.setText("Snippet 80"); |
| shell.setLayout(new FillLayout()); |
| final Tree tree = new Tree(shell, SWT.BORDER | SWT.MULTI); |
| for (int i = 0; i < 2; i++) { |
| TreeItem item = new TreeItem(tree, SWT.NONE); |
| item.setText("item " + i); |
| for (int j = 0; j < 2; j++) { |
| TreeItem subItem = new TreeItem(item, SWT.NONE); |
| subItem.setText("item " + j); |
| for (int k = 0; k < 2; k++) { |
| TreeItem subsubItem = new TreeItem(subItem, SWT.NONE); |
| subsubItem.setText("item " + k); |
| } |
| } |
| } |
| |
| tree.addSelectionListener(widgetSelectedAdapter(e -> { |
| TreeItem[] revisedSelection = new TreeItem[0]; |
| for (TreeItem item : tree.getSelection()) { |
| String text = item.getText(); |
| if (text.indexOf('1') > 0) { |
| TreeItem[] newSelection = new TreeItem[revisedSelection.length + 1]; |
| System.arraycopy(revisedSelection, 0, newSelection, 0, revisedSelection.length); |
| newSelection[revisedSelection.length] = item; |
| revisedSelection = newSelection; |
| } |
| } |
| tree.setSelection(revisedSelection); |
| })); |
| |
| shell.setSize(300, 300); |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| display.dispose(); |
| } |
| } |