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.diagram;
14 import java.util.ArrayList;
15 import java.util.Collection;
17 import org.simantics.db.ReadGraph;
18 import org.simantics.db.RequestProcessor;
19 import org.simantics.db.Resource;
20 import org.simantics.db.common.request.ResourceRead2;
21 import org.simantics.db.exception.DatabaseException;
22 import org.simantics.db.request.Read;
23 import org.simantics.diagram.stubs.DiagramResource;
24 import org.simantics.diagram.symbolcontribution.CompositeSymbolProviderFactory;
25 import org.simantics.diagram.symbolcontribution.ISymbolProvider;
26 import org.simantics.diagram.symbolcontribution.SymbolContribution;
27 import org.simantics.diagram.symbolcontribution.SymbolProviderFactory;
28 import org.simantics.diagram.symbollibrary.ISymbolGroup;
29 import org.simantics.diagram.symbollibrary.ISymbolItem;
30 import org.simantics.utils.ui.AdaptionUtils;
33 * @author Tuukka Lehtonen
35 public final class DiagramTypeUtils {
37 public static SymbolProviderFactory readSymbolProviderFactory(RequestProcessor processor, final Resource diagram) throws DatabaseException {
38 return processor.syncRequest(new Read<SymbolProviderFactory>() {
40 public SymbolProviderFactory perform(ReadGraph graph) throws DatabaseException {
41 return readSymbolProviderFactory(graph, diagram);
46 public static SymbolProviderFactory readSymbolProviderFactory(ReadGraph graph, Resource diagram) throws DatabaseException {
47 DiagramResource dr = DiagramResource.getInstance(graph);
49 Collection<SymbolProviderFactory> factories = new ArrayList<SymbolProviderFactory>();
51 for (Resource diagramType : graph.getTypes(diagram)) {
52 for (Resource symbolContribution : graph.getObjects(diagramType, dr.HasSymbolContribution)) {
53 // TODO: consider how to react to possible adaption failures
54 SymbolContribution contribution = graph.adaptUnique(symbolContribution, SymbolContribution.class);
55 factories.add(contribution.create(graph, diagram));
59 return new CompositeSymbolProviderFactory(factories);
62 public static ISymbolProvider readSymbolContributions(RequestProcessor processor, final Resource diagram) throws DatabaseException {
63 return processor.syncRequest(new Read<ISymbolProvider>() {
65 public ISymbolProvider perform(ReadGraph graph) throws DatabaseException {
66 return readSymbolContributions(graph, diagram);
71 public static ISymbolProvider readSymbolContributions(ReadGraph graph, Resource diagram) throws DatabaseException {
72 return readSymbolProviderFactory(graph, diagram).create(graph);
76 public static boolean symbolAllowedOnDiagram(RequestProcessor processor, ISymbolItem symbol, final Resource diagram) throws DatabaseException {
77 return symbolFromGroupAllowedOnDiagram(processor, symbol.getGroup(), diagram);
80 public static boolean symbolFromGroupAllowedOnDiagram(RequestProcessor processor, ISymbolGroup group, final Resource diagram) throws DatabaseException {
81 final Resource groupResource = AdaptionUtils.adaptToSingle(group, Resource.class);
82 return symbolFromGroupAllowedOnDiagram(processor, groupResource, diagram);
85 public static boolean symbolFromGroupAllowedOnDiagram(RequestProcessor processor, final Resource symbolGroup, final Resource diagram) throws DatabaseException {
86 // no semantic info, no validation
89 if (symbolGroup == null)
92 return processor.syncRequest(new ResourceRead2<Boolean>(diagram, symbolGroup) {
94 public Boolean perform(ReadGraph graph) throws DatabaseException {
95 DiagramResource DIA = DiagramResource.getInstance(graph);
96 for (Resource diagramType : graph.getTypes(diagram)) {
97 for (Resource symbolContribution : graph.getObjects(diagramType, DIA.HasSymbolContribution)) {
98 for (Resource symbolLibrary : graph.getObjects(symbolContribution, DIA.BasicSymbolContributionHasSymbolLibrary)) {
99 if (symbolGroup.equals(symbolLibrary))
104 return Boolean.FALSE;