gerrit.simantics Code Review - simantics/district.git/blob

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