org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkHoverInfoStyle.java

   1 package org.simantics.district.network.ui.nodes;
   2
   3 import java.awt.geom.Point2D;
   4 import java.util.Collections;
   5 import java.util.List;
   6
   7 import org.simantics.Simantics;
   8 import org.simantics.databoard.Bindings;
   9 import org.simantics.db.ReadGraph;
  10 import org.simantics.db.Resource;
  11 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
  12 import org.simantics.db.common.request.ResourceRead;
  13 import org.simantics.db.exception.DatabaseException;
  14 import org.simantics.db.layer0.exception.MissingVariableValueException;
  15 import org.simantics.db.layer0.exception.PendingVariableException;
  16 import org.simantics.db.layer0.util.Layer0Utils;
  17 import org.simantics.db.layer0.variable.Variable;
  18 import org.simantics.db.layer0.variable.Variables;
  19 import org.simantics.diagram.profile.StyleBase;
  20 import org.simantics.diagram.stubs.DiagramResource;
  21 import org.simantics.district.network.DistrictNetworkUtil;
  22 import org.simantics.district.network.ontology.DistrictNetworkResource;
  23 import org.simantics.layer0.Layer0;
  24 import org.simantics.modeling.ModelingResources;
  25 import org.simantics.scenegraph.INode;
  26 import org.simantics.scenegraph.profile.EvaluationContext;
  27 import org.simantics.scenegraph.profile.common.ProfileVariables;
  28 import org.simantics.scl.compiler.top.ValueNotFound;
  29 import org.simantics.scl.osgi.SCLOsgi;
  30 import org.simantics.scl.runtime.SCLContext;
  31 import org.simantics.scl.runtime.function.Function1;
  32 import org.simantics.scl.runtime.tuple.Tuple3;
  33 import org.simantics.structural.stubs.StructuralResource2;
  34
  35 public class DistrictNetworkHoverInfoStyle extends StyleBase<DistrictNetworkHoverInfoStyle.StyleResult> {
  36
  37         private static final String ACTIONS_MODULE = "Actions";
  38         private static final String HOVER_CONTRIBUTION = "hoverContribution";
  39
  40         public class StyleResult {
  41                 Point2D origin;
  42                 List<Tuple3> labels;
  43
  44                 public StyleResult(Point2D origin, List<Tuple3> labels) {
  45                         this.origin = origin;
  46                         this.labels = labels;
  47                 }
  48
  49                 public Point2D getOrigin() {
  50                         return origin;
  51                 }
  52
  53                 public List<Tuple3> getLabels() {
  54                         return labels;
  55                 }
  56         }
  57
  58         public DistrictNetworkHoverInfoStyle(Resource style) throws DatabaseException {
  59                 super(style);
  60         }
  61
  62         String currentRowKey;
  63
  64         protected Resource getConfigurationComponent(ReadGraph graph, Resource element) throws DatabaseException {
  65                 ModelingResources MOD = ModelingResources.getInstance(graph);
  66                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  67
  68                 Resource mappedElement = graph.getPossibleObject(element, DN.MappedComponent);
  69                 return mappedElement != null ? graph.getPossibleObject(mappedElement, MOD.ElementToComponent) : null;
  70         }
  71
  72         @Override
  73         public StyleResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry,
  74                         Resource mapElement, Variable configuration) throws DatabaseException {
  75                 DiagramResource DIA = DiagramResource.getInstance(graph);
  76                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
  77
  78                 String variableURI = graph.getPossibleRelatedValue(runtimeDiagram, DIA.RuntimeDiagram_HasVariable, Bindings.STRING);
  79                 Variable activeVariable = org.simantics.db.layer0.variable.Variables.getPossibleVariable(graph, variableURI);
  80                 if (activeVariable == null)
  81                         return null;
  82
  83                 Resource module = DistrictNetworkUtil.getMappedComponentCached(graph, mapElement);
  84                 if (module == null)
  85                         return null;
  86
  87                 Resource moduleType = graph.getPossibleType(module, STR.Component);
  88                 if (moduleType == null)
  89                         return null;
  90
  91                 Function1<Variable, List<Tuple3>> function = getUCTextGridFunctionCached(graph, moduleType);
  92                 if (function == null)
  93                         return null;
  94
  95                 List<Tuple3> result;
  96                 try {
  97                         Variable variable = Variables.getVariable(graph, module);
  98                         Variable moduleVariable = Variables.possibleActiveVariable(graph, variable);
  99                         if (moduleVariable == null)
 100                                 moduleVariable = variable;
 101
 102                         result = Simantics.applySCLRead(graph, function, moduleVariable);
 103                 } catch (PendingVariableException | MissingVariableValueException e) {
 104                         result = Collections.singletonList(new Tuple3("<pending>", "", ""));
 105                 }
 106
 107                 Point2D point;
 108                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 109                 if (graph.isInstanceOf(mapElement, DN.Vertex)) {
 110                         double[] coords = graph.getRelatedValue(mapElement, DIA.HasLocation);
 111                         point = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords[0], coords[1]), null);
 112                 }
 113                 else if (graph.isInstanceOf(mapElement, DN.Edge)) {
 114                         Resource v1 = graph.getSingleObject(mapElement, DN.HasStartVertex);
 115                         double[] coords1 = graph.getRelatedValue(v1, DIA.HasLocation);
 116                         Resource v2 = graph.getSingleObject(mapElement, DN.HasEndVertex);
 117                         double[] coords2 = graph.getRelatedValue(v2, DIA.HasLocation);
 118                         point = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double((coords1[0] + coords2[0]) / 2, (coords1[1] + coords2[1]) / 2), null);
 119                 }
 120                 else {
 121                         return null;
 122                 }
 123
 124                 return new StyleResult(point, result);
 125         }
 126
 127         @Override
 128         public void applyStyleForNode(EvaluationContext observer, INode parent, StyleResult results) {
 129                 if (results == null) {
 130                         cleanupStyleForNode(observer, parent);
 131                         return;
 132                 }
 133
 134                 DistrictNetworkHoverInfoNode node = ProfileVariables.claimChild(parent, "*", DistrictNetworkHoverInfoNode.NODE_KEY, DistrictNetworkHoverInfoNode.class, observer);
 135                 if (node == null)
 136                         return;
 137
 138                 node.setLabels(results.getLabels());
 139                 node.setOrigin(results.getOrigin());
 140         }
 141
 142         @Override
 143         protected void cleanupStyleForNode(EvaluationContext observer, INode node) {
 144                 ProfileVariables.denyChild(node, "*", DistrictNetworkHoverInfoNode.NODE_KEY);
 145         }
 146
 147         private static Function1<Variable, List<Tuple3>> getUCTextGridFunctionCached(ReadGraph graph, Resource componentType)
 148                         throws DatabaseException {
 149                 return graph.syncRequest(new UCTextGridFunctionRequest(componentType), TransientCacheListener.instance());
 150         }
 151
 152         private static final class UCTextGridFunctionRequest extends ResourceRead<Function1<Variable, List<Tuple3>>> {
 153                 public UCTextGridFunctionRequest(Resource resource) {
 154                         super(resource);
 155                 }
 156
 157                 @SuppressWarnings("unchecked")
 158                 @Override
 159                 public Function1<Variable, List<Tuple3>> perform(ReadGraph graph) throws DatabaseException {
 160                         Resource actionsModule = Layer0Utils.getPossibleChild(graph, resource, ACTIONS_MODULE);
 161                         if (actionsModule == null || !graph.isInstanceOf(actionsModule, Layer0.getInstance(graph).SCLModule))
 162                                 return null;
 163
 164                         String uri = graph.getURI(actionsModule);
 165                         SCLContext sclContext = SCLContext.getCurrent();
 166                         Object oldGraph = sclContext.get("graph");
 167                         try {
 168                                 sclContext.put("graph", graph);
 169                                 return (Function1<Variable, List<Tuple3>>) SCLOsgi.MODULE_REPOSITORY.getValue(uri, HOVER_CONTRIBUTION);
 170                         } catch (ValueNotFound e1) {
 171                                 return null;
 172                         } finally {
 173                                 sclContext.put("graph", oldGraph);
 174                         }
 175                 }
 176         }
 177 }