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.swt;
14 import java.util.Collection;
16 import org.eclipse.swt.graphics.Image;
17 import org.simantics.browsing.ui.BuiltinKeys;
18 import org.simantics.browsing.ui.NodeContext;
19 import org.simantics.browsing.ui.NodeContext.QueryKey;
20 import org.simantics.browsing.ui.NodeQueryManager;
21 import org.simantics.browsing.ui.common.imagers.ImageURLs;
22 import org.simantics.browsing.ui.common.processors.AbstractNodeQueryProcessor;
23 import org.simantics.browsing.ui.content.Imager;
24 import org.simantics.browsing.ui.content.ImagerFactory;
26 public class DefaultSelectedImagerProcessor extends AbstractNodeQueryProcessor<Imager> {
28 public DefaultSelectedImagerProcessor() {
32 public QueryKey<Imager> getIdentifier() {
33 return BuiltinKeys.SELECTED_IMAGER;
37 public Imager query(NodeQueryManager manager, NodeContext context) {
39 Collection<ImagerFactory> imagers = manager.query(context, BuiltinKeys.IMAGER_FACTORIES);
40 if (imagers.isEmpty()) {
42 Imager imager = (Imager) context.getAdapter(Imager.class);
45 ImageURLs urls = (ImageURLs) context.getAdapter(ImageURLs.class);
47 return new ImageURLsImager<Image>(urls);
49 return new NullImager();
53 // TODO: use SelectedLabelerFactory query instead of this educated choice
54 ImagerFactory factory = imagers.iterator().next();
56 return manager.query(context, new BuiltinKeys.ImagerKey(factory));
61 public String toString() {
62 return "SelectedLabelerProcessor";