Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / DiagramTypeUtils.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/DiagramTypeUtils.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/DiagramTypeUtils.java
new file mode 100644 (file)
index 0000000..ea3664e
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+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/DiagramTypeUtils.java
@@ -0,0 +1,109 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.diagram;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.ResourceRead2;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.diagram.symbolcontribution.CompositeSymbolProviderFactory;\r
+import org.simantics.diagram.symbolcontribution.ISymbolProvider;\r
+import org.simantics.diagram.symbolcontribution.SymbolContribution;\r
+import org.simantics.diagram.symbolcontribution.SymbolProviderFactory;\r
+import org.simantics.diagram.symbollibrary.ISymbolGroup;\r
+import org.simantics.diagram.symbollibrary.ISymbolItem;\r
+import org.simantics.utils.ui.AdaptionUtils;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public final class DiagramTypeUtils {\r
+\r
+    public static SymbolProviderFactory readSymbolProviderFactory(RequestProcessor processor, final Resource diagram) throws DatabaseException {\r
+        return processor.syncRequest(new Read<SymbolProviderFactory>() {\r
+            @Override\r
+            public SymbolProviderFactory perform(ReadGraph graph) throws DatabaseException {\r
+                return readSymbolProviderFactory(graph, diagram);\r
+            }\r
+        });\r
+    }\r
+\r
+    public static SymbolProviderFactory readSymbolProviderFactory(ReadGraph graph, Resource diagram) throws DatabaseException {\r
+        DiagramResource dr = DiagramResource.getInstance(graph);\r
+\r
+        Collection<SymbolProviderFactory> factories = new ArrayList<SymbolProviderFactory>();\r
+\r
+        for (Resource diagramType : graph.getTypes(diagram)) {\r
+            for (Resource symbolContribution : graph.getObjects(diagramType, dr.HasSymbolContribution)) {\r
+                // TODO: consider how to react to possible adaption failures\r
+                SymbolContribution contribution = graph.adaptUnique(symbolContribution, SymbolContribution.class);\r
+                factories.add(contribution.create(graph, diagram));\r
+            }\r
+        }\r
+\r
+        return new CompositeSymbolProviderFactory(factories);\r
+    }\r
+\r
+    public static ISymbolProvider readSymbolContributions(RequestProcessor processor, final Resource diagram) throws DatabaseException {\r
+        return processor.syncRequest(new Read<ISymbolProvider>() {\r
+            @Override\r
+            public ISymbolProvider perform(ReadGraph graph) throws DatabaseException {\r
+                return readSymbolContributions(graph, diagram);\r
+            }\r
+        });\r
+    }\r
+\r
+    public static ISymbolProvider readSymbolContributions(ReadGraph graph, Resource diagram) throws DatabaseException {\r
+        return readSymbolProviderFactory(graph, diagram).create(graph);\r
+    }\r
+\r
+\r
+    public static boolean symbolAllowedOnDiagram(RequestProcessor processor, ISymbolItem symbol, final Resource diagram) throws DatabaseException {\r
+        return symbolFromGroupAllowedOnDiagram(processor, symbol.getGroup(), diagram);\r
+    }\r
+\r
+    public static boolean symbolFromGroupAllowedOnDiagram(RequestProcessor processor, ISymbolGroup group, final Resource diagram) throws DatabaseException {\r
+        final Resource groupResource = AdaptionUtils.adaptToSingle(group, Resource.class);\r
+        return symbolFromGroupAllowedOnDiagram(processor, groupResource, diagram);\r
+    }\r
+\r
+    public static boolean symbolFromGroupAllowedOnDiagram(RequestProcessor processor, final Resource symbolGroup, final Resource diagram) throws DatabaseException {\r
+        // no semantic info, no validation\r
+        if (diagram == null)\r
+            return true;\r
+        if (symbolGroup == null)\r
+            return true;\r
+\r
+        return processor.syncRequest(new ResourceRead2<Boolean>(diagram, symbolGroup) {\r
+            @Override\r
+            public Boolean perform(ReadGraph graph) throws DatabaseException {\r
+                DiagramResource DIA = DiagramResource.getInstance(graph);\r
+                for (Resource diagramType : graph.getTypes(diagram)) {\r
+                    for (Resource symbolContribution : graph.getObjects(diagramType, DIA.HasSymbolContribution)) {\r
+                        for (Resource symbolLibrary : graph.getObjects(symbolContribution, DIA.BasicSymbolContributionHasSymbolLibrary)) {\r
+                            if (symbolGroup.equals(symbolLibrary))\r
+                                return Boolean.TRUE;\r
+                        }\r
+                    }\r
+                }\r
+                return Boolean.FALSE;\r
+            }\r
+        });\r
+    }\r
+\r
+}\r