| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 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 implementation |
| //------------------------------------------------------------------------------ |
| package org.eclipse.epf.authoring.ui.providers; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.ui.dialogs.ContainerCheckedTreeViewer; |
| |
| /** |
| * Filter for viewers of configuration page. |
| * If hideUnchecked is set, it will filter unchecked elements |
| * |
| * @author Jeff Hardy |
| */ |
| public class HideUncheckedViewerFilter extends ViewerFilter { |
| |
| private ContainerCheckedTreeViewer viewer; |
| |
| private boolean hideUnchecked = false; |
| |
| public HideUncheckedViewerFilter(ContainerCheckedTreeViewer viewer) { |
| this.viewer = viewer; |
| } |
| |
| @Override |
| public boolean select(Viewer viewer, Object parentElement, Object element) { |
| if (hideUnchecked && !isChecked(element)) |
| return false; |
| return true; |
| } |
| |
| public boolean isHideUnchecked() { |
| return hideUnchecked; |
| } |
| |
| public void toggleHideUnchecked() { |
| hideUnchecked = !hideUnchecked; |
| } |
| |
| private boolean isChecked(Object element) { |
| List<Object> checkedItems = Arrays.asList(viewer.getCheckedElements()); |
| return checkedItems.contains(element); |
| } |
| } |