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

   1 package org.simantics.district.network.ui.styles;
   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.MissingVariableException;
  15 import org.simantics.db.layer0.exception.MissingVariableValueException;
  16 import org.simantics.db.layer0.exception.PendingVariableException;
  17 import org.simantics.db.layer0.util.Layer0Utils;
  18 import org.simantics.db.layer0.variable.Variable;
  19 import org.simantics.db.layer0.variable.Variables;
  20 import org.simantics.diagram.profile.StyleBase;
  21 import org.simantics.diagram.stubs.DiagramResource;
  22 import org.simantics.district.network.DistrictNetworkUtil;
  23 import org.simantics.district.network.ontology.DistrictNetworkResource;
  24 import org.simantics.district.network.ui.nodes.DeferredRenderingNode;
  25 import org.simantics.district.network.ui.nodes.DistrictNetworkHoverInfoNode;
  26 import org.simantics.district.network.ui.nodes.DistrictNetworkNodeUtils;
  27 import org.simantics.layer0.Layer0;
  28 import org.simantics.modeling.ModelingResources;
  29 import org.simantics.scenegraph.INode;
  30 import org.simantics.scenegraph.ParentNode;
  31 import org.simantics.scenegraph.g2d.nodes.spatial.RTreeNode;
  32 import org.simantics.scenegraph.profile.EvaluationContext;
  33 import org.simantics.scenegraph.profile.common.ProfileVariables;
  34 import org.simantics.scenegraph.utils.NodeUtil;
  35 import org.simantics.scl.compiler.top.ValueNotFound;
  36 import org.simantics.scl.osgi.SCLOsgi;
  37 import org.simantics.scl.runtime.SCLContext;
  38 import org.simantics.scl.runtime.function.Function1;
  39 import org.simantics.scl.runtime.tuple.Tuple3;
  40 import org.simantics.structural.stubs.StructuralResource2;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 public class DistrictNetworkHoverInfoStyle extends StyleBase<DistrictNetworkHoverInfoStyle.StyleResult> {
  45
  46     public static final String HOVER_INFO_DEFERRED = "hoverInfo";
  47
  48         private static final Logger LOGGER = LoggerFactory.getLogger(DistrictNetworkHoverInfoStyle.class);
  49
  50         private static final String ACTIONS_MODULE = "Actions";
  51         private static final String HOVER_CONTRIBUTION = "hoverContribution";
  52
  53         public class StyleResult {
  54                 Point2D origin;
  55                 List<Tuple3> labels;
  56
  57                 public StyleResult(Point2D origin, List<Tuple3> labels) {
  58                         this.origin = origin;
  59                         this.labels = labels;
  60                 }
  61
  62                 public Point2D getOrigin() {
  63                         return origin;
  64                 }
  65
  66                 public List<Tuple3> getLabels() {
  67                         return labels;
  68                 }
  69         }
  70
  71         public DistrictNetworkHoverInfoStyle(Resource style) throws DatabaseException {
  72                 super(style);
  73         }
  74
  75         String currentRowKey;
  76
  77         protected Resource getConfigurationComponent(ReadGraph graph, Resource element) throws DatabaseException {
  78                 ModelingResources MOD = ModelingResources.getInstance(graph);
  79                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  80
  81                 Resource mappedElement = graph.getPossibleObject(element, DN.MappedComponent);
  82                 return mappedElement != null ? graph.getPossibleObject(mappedElement, MOD.ElementToComponent) : null;
  83         }
  84
  85         @Override
  86         public StyleResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry,
  87                         Resource mapElement, Variable configuration) throws DatabaseException {
  88                 DiagramResource DIA = DiagramResource.getInstance(graph);
  89                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
  90
  91                 String variableURI = graph.getPossibleRelatedValue(runtimeDiagram, DIA.RuntimeDiagram_HasVariable, Bindings.STRING);
  92                 Variable activeVariable = org.simantics.db.layer0.variable.Variables.getPossibleVariable(graph, variableURI);
  93                 if (activeVariable == null)
  94                         return null;
  95
  96                 Resource module = DistrictNetworkUtil.getMappedComponentCached(graph, mapElement);
  97                 if (module == null)
  98                         return null;
  99
 100                 Resource moduleType = graph.getPossibleType(module, STR.Component);
 101                 if (moduleType == null)
 102                         return null;
 103
 104                 Function1<Variable, List<Tuple3>> function = getUCTextGridFunctionCached(graph, moduleType);
 105                 if (function == null)
 106                         return null;
 107
 108                 List<Tuple3> result;
 109                 try {
 110                         Variable variable = Variables.getVariable(graph, module);
 111                         Variable moduleVariable = Variables.possibleActiveVariable(graph, variable);
 112                         if (moduleVariable == null)
 113                                 moduleVariable = variable;
 114
 115                         result = Simantics.applySCLRead(graph, function, moduleVariable);
 116                 } catch (PendingVariableException | MissingVariableValueException e) {
 117                         result = Collections.singletonList(new Tuple3("<pending>", "", ""));
 118                 } catch (MissingVariableException e) {
 119             // the requested variable is missing from the UC
 120             String message = e.getMessage();
 121             LOGGER.warn("Missing variable for calculating style with function {} {}", function, message);
 122             result = Collections.singletonList(new Tuple3("<" + message +">", "", ""));
 123         }
 124
 125                 Point2D point;
 126                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 127                 if (graph.isInstanceOf(mapElement, DN.Vertex)) {
 128                         double[] coords = graph.getRelatedValue(mapElement, DIA.HasLocation);
 129                         point = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords[0], coords[1]), null);
 130                 }
 131                 else if (graph.isInstanceOf(mapElement, DN.Edge)) {
 132                         Resource v1 = graph.getSingleObject(mapElement, DN.HasStartVertex);
 133                         double[] coords1 = graph.getRelatedValue(v1, DIA.HasLocation);
 134                         Resource v2 = graph.getSingleObject(mapElement, DN.HasEndVertex);
 135                         double[] coords2 = graph.getRelatedValue(v2, DIA.HasLocation);
 136                         point = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double((coords1[0] + coords2[0]) / 2, (coords1[1] + coords2[1]) / 2), null);
 137                 }
 138                 else {
 139                         return null;
 140                 }
 141
 142                 return new StyleResult(point, result);
 143         }
 144
 145         @Override
 146         public void applyStyleForNode(EvaluationContext observer, INode parent, StyleResult results) {
 147                 if (results == null) {
 148                         cleanupStyleForNode(observer, parent);
 149                         return;
 150                 }
 151
 152                 DistrictNetworkHoverInfoNode node = ProfileVariables.claimChild(parent, "*", DistrictNetworkHoverInfoNode.NODE_KEY, DistrictNetworkHoverInfoNode.class, observer);
 153                 if (node == null)
 154                         return;
 155
 156                 ParentNode<?> root = (ParentNode<?>) NodeUtil.getNearestParentOfType(parent, RTreeNode.class);
 157                 if (root != null) {
 158                         DeferredRenderingNode deferred = ProfileVariables.claimChild(root, "", HOVER_INFO_DEFERRED, DeferredRenderingNode.class, observer);
 159                         deferred.setZIndex(Integer.MAX_VALUE);
 160                 }
 161
 162                 node.setLabels(results.getLabels());
 163                 node.setOrigin(results.getOrigin());
 164         }
 165
 166         @Override
 167         protected void cleanupStyleForNode(EvaluationContext observer, INode node) {
 168                 ProfileVariables.denyChild(node, "*", DistrictNetworkHoverInfoNode.NODE_KEY);
 169         }
 170
 171         private static Function1<Variable, List<Tuple3>> getUCTextGridFunctionCached(ReadGraph graph, Resource componentType)
 172                         throws DatabaseException {
 173                 return graph.syncRequest(new UCTextGridFunctionRequest(componentType), TransientCacheListener.instance());
 174         }
 175
 176         private static final class UCTextGridFunctionRequest extends ResourceRead<Function1<Variable, List<Tuple3>>> {
 177                 public UCTextGridFunctionRequest(Resource resource) {
 178                         super(resource);
 179                 }
 180
 181                 @SuppressWarnings("unchecked")
 182                 @Override
 183                 public Function1<Variable, List<Tuple3>> perform(ReadGraph graph) throws DatabaseException {
 184                         Resource actionsModule = Layer0Utils.getPossibleChild(graph, resource, ACTIONS_MODULE);
 185                         if (actionsModule == null || !graph.isInstanceOf(actionsModule, Layer0.getInstance(graph).SCLModule))
 186                                 return null;
 187
 188                         String uri = graph.getURI(actionsModule);
 189                         SCLContext sclContext = SCLContext.getCurrent();
 190                         Object oldGraph = sclContext.get("graph");
 191                         try {
 192                                 sclContext.put("graph", graph);
 193                                 return (Function1<Variable, List<Tuple3>>) SCLOsgi.MODULE_REPOSITORY.getValue(uri, HOVER_CONTRIBUTION);
 194                         } catch (ValueNotFound e1) {
 195                                 return null;
 196                         } finally {
 197                                 sclContext.put("graph", oldGraph);
 198                         }
 199                 }
 200         }
 201 }