X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Frules%2FRelatedDiagramConnections.java;fp=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Frules%2FRelatedDiagramConnections.java;h=ebbef33323cd7d543e9011026f1863e54e3bff75;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/rules/RelatedDiagramConnections.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/rules/RelatedDiagramConnections.java
new file mode 100644
index 000000000..ebbef3332
--- /dev/null
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/rules/RelatedDiagramConnections.java
@@ -0,0 +1,71 @@
+package org.simantics.modeling.rules;
+
+import gnu.trove.set.hash.THashSet;
+
+import java.util.Collection;
+import java.util.Set;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Statement;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.structural.stubs.StructuralResource2;
+
+public class RelatedDiagramConnections {
+
+	ReadGraph g;
+	StructuralResource2 sr;
+	DiagramResource dr;
+	
+	THashSet<Resource> connections = new THashSet<Resource>();
+	THashSet<Resource> connectionJoins = new THashSet<Resource>();
+	THashSet<Resource> outputConnectors = new THashSet<Resource>();
+		
+	public RelatedDiagramConnections(ReadGraph g) {
+		this.g = g;
+		this.sr = StructuralResource2.getInstance(g);
+		this.dr = DiagramResource.getInstance(g);
+	}
+
+	public void addConnection(Resource connection) throws DatabaseException {
+		if(connections.add(connection)) {
+			for(Statement hasConnector : g.getStatements(connection, dr.HasConnector)) {
+				Resource connector = hasConnector.getObject();
+				for(Resource flag : g.getObjects(connector, sr.Connects)) {
+					if(g.isInstanceOf(flag, dr.Flag)) {
+						for(Resource join : g.getObjects(flag, dr.FlagIsJoinedBy))
+							addConnectionJoin(join);
+					}
+				}
+				if (g.isSubrelationOf(hasConnector.getPredicate(), dr.HasTailConnector)) {
+					outputConnectors.add(connector);
+				}
+			}
+		}
+	}
+	
+	public void addConnectionJoin(Resource join) throws DatabaseException {
+		if(connectionJoins.add(join)) {
+			for(Resource flag : g.getObjects(join, dr.JoinsFlag))
+				for(Resource connector : g.getObjects(flag, sr.IsConnectedTo))
+					for(Resource connection : g.getObjects(connector, dr.IsConnectorOf))
+						addConnection(connection);
+		}
+	}
+
+	public static Collection<Resource> getRelatedDiagramConnections(ReadGraph g, Resource connection) throws DatabaseException {
+		RelatedDiagramConnections p = new RelatedDiagramConnections(g);
+		p.addConnection(connection);
+		return p.connections;
+	}
+
+	public Set<Resource> getDiagramConnections() {
+		return connections;
+	}
+
+	public Set<Resource> getOutputConnectors() {
+		return outputConnectors;
+	}
+
+}