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 static 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();
  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, Resource mapElement,
  87             Variable configuration) throws DatabaseException {
  88         //return doCalculateStyleResult(graph, runtimeDiagram, mapElement);
  89         return new StyleResult(calculatePoint(graph, mapElement), Collections.emptyList());
  90     }
  91
  92     public static StyleResult doCalculateStyleResult(ReadGraph graph, Resource runtimeDiagram, Resource mapElement) throws DatabaseException {
  93         DiagramResource DIA = DiagramResource.getInstance(graph);
  94         StructuralResource2 STR = StructuralResource2.getInstance(graph);
  95
  96         String variableURI = graph.getPossibleRelatedValue(runtimeDiagram, DIA.RuntimeDiagram_HasVariable,
  97                 Bindings.STRING);
  98         Variable activeVariable = org.simantics.db.layer0.variable.Variables.getPossibleVariable(graph, variableURI);
  99         if (activeVariable == null)
 100             return null;
 101
 102         Resource module = DistrictNetworkUtil.getMappedComponentCached(graph, mapElement);
 103         if (module == null)
 104             return null;
 105
 106         Resource moduleType = graph.getPossibleType(module, STR.Component);
 107         if (moduleType == null)
 108             return null;
 109
 110         Function1<Variable, List<Tuple3>> function = getUCTextGridFunctionCached(graph, moduleType);
 111         if (function == null)
 112             return null;
 113
 114         List<Tuple3> result;
 115         try {
 116             Variable variable = Variables.getVariable(graph, module);
 117             Variable moduleVariable = Variables.possibleActiveVariable(graph, variable);
 118             if (moduleVariable == null)
 119                 moduleVariable = variable;
 120
 121             result = Simantics.applySCLRead(graph, function, moduleVariable);
 122         } catch (PendingVariableException | MissingVariableValueException e) {
 123             result = Collections.singletonList(new Tuple3("<pending>", "", ""));
 124         } catch (MissingVariableException e) {
 125             // the requested variable is missing from the UC
 126             String message = e.getMessage();
 127             LOGGER.warn("Missing variable for calculating style with function {} {}", function, message);
 128             result = Collections.singletonList(new Tuple3("<" + message + ">", "", ""));
 129         }
 130
 131         Point2D point = calculatePoint(graph, mapElement);
 132
 133         return new StyleResult(point, result);
 134     }
 135
 136     public static Point2D calculatePoint(ReadGraph graph, Resource mapElement) throws DatabaseException {
 137         Point2D point;
 138         DiagramResource DIA = DiagramResource.getInstance(graph);
 139         DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 140         if (graph.isInstanceOf(mapElement, DN.Vertex)) {
 141             double[] coords = graph.getRelatedValue(mapElement, DIA.HasLocation);
 142             point = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords[0], coords[1]), null);
 143         } else if (graph.isInstanceOf(mapElement, DN.Edge)) {
 144             Resource v1 = graph.getSingleObject(mapElement, DN.HasStartVertex);
 145             double[] coords1 = graph.getRelatedValue(v1, DIA.HasLocation);
 146             Resource v2 = graph.getSingleObject(mapElement, DN.HasEndVertex);
 147             double[] coords2 = graph.getRelatedValue(v2, DIA.HasLocation);
 148             point = DistrictNetworkNodeUtils.calculatePoint2D(
 149                     new Point2D.Double((coords1[0] + coords2[0]) / 2, (coords1[1] + coords2[1]) / 2), null);
 150         } else {
 151             return null;
 152         }
 153         return point;
 154     }
 155
 156         @Override
 157         public void applyStyleForNode(EvaluationContext observer, INode parent, StyleResult results) {
 158 //              if (results == null) {
 159 //                      cleanupStyleForNode(observer, parent);
 160 //                      return;
 161 //              }
 162 //
 163 //              DistrictNetworkHoverInfoNode node = ProfileVariables.claimChild(parent, "*", DistrictNetworkHoverInfoNode.NODE_KEY, DistrictNetworkHoverInfoNode.class, observer);
 164 //              if (node == null)
 165 //                      return;
 166 //
 167 //              ParentNode<?> root = (ParentNode<?>) NodeUtil.getNearestParentOfType(parent, RTreeNode.class);
 168 //              if (root != null) {
 169 //                      DeferredRenderingNode deferred = ProfileVariables.claimChild(root, "", HOVER_INFO_DEFERRED, DeferredRenderingNode.class, observer);
 170 //                      deferred.setZIndex(Integer.MAX_VALUE);
 171 //              }
 172 //
 173 //              node.setLabels(results.getLabels());
 174 //              node.setOrigin(results.getOrigin());
 175         }
 176
 177         @Override
 178         protected void cleanupStyleForNode(EvaluationContext observer, INode node) {
 179                 ProfileVariables.denyChild(node, "*", DistrictNetworkHoverInfoNode.NODE_KEY);
 180         }
 181
 182         private static Function1<Variable, List<Tuple3>> getUCTextGridFunctionCached(ReadGraph graph, Resource componentType)
 183                         throws DatabaseException {
 184                 return graph.syncRequest(new UCTextGridFunctionRequest(componentType), TransientCacheListener.instance());
 185         }
 186
 187         private static final class UCTextGridFunctionRequest extends ResourceRead<Function1<Variable, List<Tuple3>>> {
 188                 public UCTextGridFunctionRequest(Resource resource) {
 189                         super(resource);
 190                 }
 191
 192                 @SuppressWarnings("unchecked")
 193                 @Override
 194                 public Function1<Variable, List<Tuple3>> perform(ReadGraph graph) throws DatabaseException {
 195                         Resource actionsModule = Layer0Utils.getPossibleChild(graph, resource, ACTIONS_MODULE);
 196                         if (actionsModule == null || !graph.isInstanceOf(actionsModule, Layer0.getInstance(graph).SCLModule))
 197                                 return null;
 198
 199                         String uri = graph.getURI(actionsModule);
 200                         SCLContext sclContext = SCLContext.getCurrent();
 201                         Object oldGraph = sclContext.get("graph");
 202                         try {
 203                                 sclContext.put("graph", graph);
 204                                 return (Function1<Variable, List<Tuple3>>) SCLOsgi.MODULE_REPOSITORY.getValue(uri, HOVER_CONTRIBUTION);
 205                         } catch (ValueNotFound e1) {
 206                                 return null;
 207                         } finally {
 208                                 sclContext.put("graph", oldGraph);
 209                         }
 210                 }
 211         }
 212 }