1 /*******************************************************************************
2 * Copyright (c) 2010, 2011 Association for Decentralized Information Management in
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.model.images;
16 import org.eclipse.jface.resource.ImageDescriptor;
17 import org.simantics.browsing.ui.BuiltinKeys;
18 import org.simantics.browsing.ui.NodeContext;
19 import org.simantics.browsing.ui.model.InvalidContribution;
20 import org.simantics.browsing.ui.model.nodetypes.NodeType;
21 import org.simantics.browsing.ui.model.tests.Test;
22 import org.simantics.browsing.ui.model.visuals.VisualsContribution;
23 import org.simantics.db.ReadGraph;
24 import org.simantics.db.exception.DatabaseException;
27 * Produces images for nodes of given node type.
28 * @author Hannu Niemistö
30 public class ImageContribution extends VisualsContribution {
33 public ImageContribution(NodeType nodeType, Test test, ImageRule imageRule, double priority) throws InvalidContribution {
34 super(nodeType, test, priority);
35 if(!imageRule.isCompatible(
36 nodeType.getContentType()
38 throw new InvalidContribution("image rule is not compatible with the content type.");
39 this.imageRule = imageRule;
43 * Returns a image for the node or null, if contribution is
44 * not suitable for the input.
46 public Map<String, ImageDescriptor> getImage(ReadGraph graph, NodeContext context) {
47 Object content = context.getConstant(BuiltinKeys.INPUT);
49 if(test == null || test.test(graph, content))
50 return imageRule.getImage(graph, content);
53 } catch(DatabaseException e) {