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.graph.impl;
14 import org.simantics.browsing.ui.BuiltinKeys;
15 import org.simantics.browsing.ui.NodeContext;
16 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
17 import org.simantics.browsing.ui.BuiltinKeys.ViewpointKey;
18 import org.simantics.browsing.ui.common.NodeContextUtil;
19 import org.simantics.browsing.ui.common.viewpoints.LazyContainerViewpoint;
20 import org.simantics.browsing.ui.content.Viewpoint;
21 import org.simantics.browsing.ui.content.ViewpointFactory;
23 public class TypeIndexStructureViewpointFactory implements ViewpointFactory {
26 public Viewpoint create(final PrimitiveQueryUpdater provider, final NodeContext context, final ViewpointKey key) {
27 assert (provider != null);
28 assert (context != null);
30 final LazyContainerViewpoint result = new LazyContainerViewpoint();
32 final TypeIndex index = (TypeIndex) context.getConstant(BuiltinKeys.INPUT);
33 assert (index != null);
35 NodeContext[] resultContexts = NodeContextUtil.toContextsWithInput(index.instances);
37 result.setChildren(provider, resultContexts);
38 result.setHasChildren(resultContexts.length > 0);
44 public String toString() {
45 return "Structure by types";