| /******************************************************************************* |
| * 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.jface.tests.viewers.interactive; |
| |
| import org.eclipse.jface.tests.viewers.TestElement; |
| import org.eclipse.jface.tests.viewers.TestLabelProvider; |
| import org.eclipse.jface.tests.viewers.TestModelContentProvider; |
| import org.eclipse.jface.viewers.CheckStateChangedEvent; |
| import org.eclipse.jface.viewers.CheckboxTreeViewer; |
| import org.eclipse.jface.viewers.ICheckStateListener; |
| import org.eclipse.jface.viewers.ITreeViewerListener; |
| import org.eclipse.jface.viewers.TreeExpansionEvent; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.widgets.Composite; |
| |
| public class TestCheckboxTree extends TestTree { |
| CheckboxTreeViewer fCheckboxViewer; |
| |
| public TestCheckboxTree() { |
| super(); |
| } |
| |
| public void checkChildren(TestElement element, boolean state) { |
| int numChildren = element.getChildCount(); |
| for (int i = 0; i < numChildren; i++) { |
| TestElement child = element.getChildAt(i); |
| if (fCheckboxViewer.setChecked(child, state)) |
| checkChildren(child, state); |
| } |
| } |
| |
| public Viewer createViewer(Composite parent) { |
| CheckboxTreeViewer viewer = new CheckboxTreeViewer(parent); |
| viewer.setContentProvider(new TestModelContentProvider()); |
| viewer.setLabelProvider(new TestLabelProvider()); |
| |
| viewer.addTreeListener(new ITreeViewerListener() { |
| public void treeExpanded(TreeExpansionEvent e) { |
| handleTreeExpanded((TestElement) e.getElement()); |
| } |
| |
| public void treeCollapsed(TreeExpansionEvent e) { |
| } |
| }); |
| |
| viewer.addCheckStateListener(new ICheckStateListener() { |
| public void checkStateChanged(CheckStateChangedEvent e) { |
| checkChildren((TestElement) e.getElement(), e.getChecked()); |
| } |
| }); |
| |
| fCheckboxViewer = viewer; |
| fViewer = viewer; |
| return viewer; |
| } |
| |
| public void handleTreeExpanded(TestElement element) { |
| // apply the same check recursively to all children |
| boolean checked = fCheckboxViewer.getChecked(element); |
| int numChildren = element.getChildCount(); |
| for (int i = 0; i < numChildren; i++) { |
| TestElement child = element.getChildAt(i); |
| fCheckboxViewer.setChecked(child, checked); |
| } |
| } |
| |
| public static void main(String[] args) { |
| TestBrowser browser = new TestCheckboxTree(); |
| if (args.length > 0 && args[0].equals("-twopanes")) |
| browser.show2Panes(); |
| browser.setBlockOnOpen(true); |
| browser.open(TestElement.createModel(3, 10)); |
| } |
| } |