1 package org.simantics.district.network.ui;
3 import java.awt.geom.Rectangle2D;
4 import java.util.Collection;
6 import org.simantics.databoard.Bindings;
7 import org.simantics.db.Resource;
8 import org.simantics.db.WriteGraph;
9 import org.simantics.db.common.request.ObjectsWithType;
10 import org.simantics.db.exception.DatabaseException;
11 import org.simantics.db.layer0.util.Layer0Utils;
12 import org.simantics.diagram.stubs.DiagramResource;
13 import org.simantics.diagram.synchronization.IModifiableSynchronizationContext;
14 import org.simantics.diagram.synchronization.SynchronizationHints;
15 import org.simantics.diagram.synchronization.graph.AddElement;
16 import org.simantics.diagram.synchronization.graph.GraphSynchronizationHints;
17 import org.simantics.diagram.synchronization.graph.layer.GraphLayerManager;
18 import org.simantics.district.network.DistrictNetworkUtil;
19 import org.simantics.district.network.ontology.DistrictNetworkResource;
20 import org.simantics.g2d.diagram.IDiagram;
21 import org.simantics.layer0.Layer0;
23 public class DNEdgeBuilder {
25 private Resource diagramResource;
26 private IDiagram diagram;
27 private GraphLayerManager glm;
29 public DNEdgeBuilder(Resource diagramResource, IDiagram diagram) {
30 this.diagramResource = diagramResource;
31 this.diagram = diagram;
33 IModifiableSynchronizationContext context = diagram.getHint(SynchronizationHints.CONTEXT);
34 glm = context.get(GraphSynchronizationHints.GRAPH_LAYER_MANAGER);
37 public void create(WriteGraph graph, double[] start, double[] end, double padding) throws DatabaseException {
39 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
41 // 1. Get diagram edge to construct
42 Resource edge = getOrCreateEdge(graph);
44 // 1.1 Give running name to connection and increment the counter attached to the diagram.
45 AddElement.claimFreshElementName(graph, diagramResource, edge);
48 Collection<Resource> vertices = graph.syncRequest(new ObjectsWithType(diagramResource, Layer0.getInstance(graph).ConsistsOf, DistrictNetworkResource.getInstance(graph).Vertex));
49 Resource startVertex = getOrCreateVertex(graph, vertices, start, padding);
50 Resource endVertex = getOrCreateVertex(graph, vertices, end, padding);
52 graph.claim(edge, DN.HasStartVertex, startVertex);
53 graph.claim(edge, DN.HasEndVertex, endVertex);
55 // 7. Put the element on all the currently active layers if possible.
57 putOnActiveLayer(graph, edge);
58 putOnActiveLayer(graph, startVertex);
59 putOnActiveLayer(graph, endVertex);
62 Layer0Utils.addCommentMetadata(graph, "Added edge " + edge);
63 graph.markUndoPoint();
66 private void putOnActiveLayer(WriteGraph graph, Resource res) throws DatabaseException {
67 glm.removeFromAllLayers(graph, res);
68 glm.putElementOnVisibleLayers(diagram, graph, res);
71 private Resource getOrCreateVertex(WriteGraph graph, Collection<Resource> vertices, double[] coords, double padding) throws DatabaseException {
72 Resource vertex = null;
73 double halfPadding = padding / 2;
74 for (Resource vertx : vertices) {
75 double[] existingCoords = graph.getRelatedValue2(vertx, DiagramResource.getInstance(graph).HasLocation, Bindings.DOUBLE_ARRAY);
76 Rectangle2D existing = new Rectangle2D.Double(existingCoords[0] - halfPadding, existingCoords[1] - halfPadding, padding, padding);
77 Rectangle2D tobecreated = new Rectangle2D.Double(coords[0] - halfPadding, coords[1] - halfPadding, padding, padding);
78 if (existing.intersects(tobecreated)) {
84 vertex = DistrictNetworkUtil.createVertex(graph, diagramResource, coords);
85 AddElement.claimFreshElementName(graph, diagramResource, vertex);
90 private Resource getOrCreateEdge(WriteGraph graph) throws DatabaseException {
91 return DistrictNetworkUtil.createEdge(graph, diagramResource);