1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.browsing.ui;
15 * A SelectionFilter gives a {@link GraphExplorer} client primitive control over
16 * what objects the explorer puts into the selections it provides.
19 * Normally, a {@link GraphExplorer} selection contains only {@link NodeContext}
20 * instances which exist separately for each separate visible UI element, like a
21 * tree node. Presenting an implementation of this interface to an explorer will
22 * cause the explorer to filter its selected NodeContexts, one by one, through
25 * @author Tuukka Lehtonen
27 * @see GraphExplorer#setSelectionFilter(SelectionFilter)
29 public interface SelectionFilter {
32 * @param context the context to filter
33 * @return the filtered object
35 Object filter(NodeContext context);