X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Fadapters%2FDiagramSubgraphExtent.java;fp=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Fadapters%2FDiagramSubgraphExtent.java;h=dda23191fca64df03be811e2ff1aa932b0424f39;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/DiagramSubgraphExtent.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/DiagramSubgraphExtent.java
new file mode 100644
index 000000000..dda23191f
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+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/DiagramSubgraphExtent.java
@@ -0,0 +1,47 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Association for Decentralized Information Management in
+ * Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.modeling.adapters;
+
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Statement;
+import org.simantics.db.layer0.adapter.impl.TypeSubgraphExtent;
+import org.simantics.db.procedure.AsyncProcedure;
+import org.simantics.diagram.stubs.DiagramResource;
+
+public class DiagramSubgraphExtent extends TypeSubgraphExtent {
+
+	final private Classifier classifier = new Classifier() {
+
+		@Override
+		public void classify(AsyncReadGraph graph, Statement statement, ExtentStatus objectExtent,
+				Callback callback) {
+
+			if(!ExtentStatus.INTERNAL.equals(objectExtent)) return;
+			
+			Resource predicate = statement.getPredicate();
+			
+			DiagramResource dr = graph.getService(DiagramResource.class);
+			if(dr.JoinsFlag.equalsResource(predicate)) callback.statement(statement, true);
+			else if(dr.FlagIsJoinedBy.equalsResource(predicate)) callback.statement(statement, true);
+			
+		}
+		
+	};
+	
+	@Override
+	public void accept(AsyncReadGraph graph, Resource resource,
+			AsyncProcedure<Classifier> procedure, Callback callback) {
+		procedure.execute(graph, classifier);
+	}
+
+}