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

   1 package org.simantics.district.network.ui.styles;
   2
   3 import java.awt.geom.Point2D;
   4 import java.util.Set;
   5
   6 import org.simantics.Simantics;
   7 import org.simantics.db.ReadGraph;
   8 import org.simantics.db.Resource;
   9 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
  10 import org.simantics.db.common.request.ResourceRead;
  11 import org.simantics.db.exception.DatabaseException;
  12 import org.simantics.db.layer0.exception.MissingVariableException;
  13 import org.simantics.db.layer0.exception.MissingVariableValueException;
  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.district.network.profile.MidBranchEdgeSetRequest;
  23 import org.simantics.district.network.ui.nodes.DistrictNetworkNodeUtils;
  24 import org.simantics.district.network.ui.nodes.DistrictNetworkStaticInfoNode;
  25 import org.simantics.layer0.Layer0;
  26 import org.simantics.scenegraph.INode;
  27 import org.simantics.scenegraph.profile.EvaluationContext;
  28 import org.simantics.scenegraph.profile.common.ProfileVariables;
  29 import org.simantics.scl.compiler.top.ValueNotFound;
  30 import org.simantics.scl.osgi.SCLOsgi;
  31 import org.simantics.scl.runtime.SCLContext;
  32 import org.simantics.scl.runtime.function.Function1;
  33 import org.simantics.structural.stubs.StructuralResource2;
  34 import org.slf4j.LoggerFactory;
  35 import org.slf4j.Logger;
  36
  37 public class DistrictNetworkStaticInfoStyle extends StyleBase<DistrictNetworkStaticInfoStyle.StyleResult> {
  38
  39     private static final Logger LOGGER = LoggerFactory.getLogger(DistrictNetworkStaticInfoStyle.class);
  40
  41         private static final String ACTIONS_MODULE = "Actions";
  42         private static final String PIPELINE_INFO = "pipelineInfo";
  43
  44         public static class StyleResult {
  45                 public StyleResult(Point2D p1, Point2D p2, String info) {
  46                         this.p1 = p1;
  47                         this.p2 = p2;
  48                         this.info = info;
  49                 }
  50
  51                 public Point2D p1;
  52                 public Point2D p2;
  53                 public String info;
  54         }
  55
  56         public DistrictNetworkStaticInfoStyle(Resource style) {
  57                 super(style);
  58         }
  59
  60         @Override
  61         public StyleResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource mapElement)
  62                         throws DatabaseException {
  63                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  64
  65                 boolean isEdge = graph.isInstanceOf(mapElement, DN.Edge);
  66                 boolean isVertex = graph.isInstanceOf(mapElement, DN.Vertex);
  67                 if (!isEdge && !isVertex)
  68                         return null;
  69
  70                 if (isEdge) {
  71                         Resource diagram = graph.getSingleObject(mapElement, Layer0.getInstance(graph).PartOf);
  72                         Set<Resource> edgesToUse = graph.syncRequest(new MidBranchEdgeSetRequest(diagram), TransientCacheListener.instance());
  73                         if (!edgesToUse.contains(mapElement))
  74                                 return null;
  75                 }
  76
  77                 DiagramResource DIA = DiagramResource.getInstance(graph);
  78                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
  79
  80                 Resource module = DistrictNetworkUtil.getMappedComponentCached(graph, mapElement);
  81                 if (module == null)
  82                         return null;
  83
  84                 Resource moduleType = graph.getPossibleType(module, STR.Component);
  85                 if (moduleType == null)
  86                         return null;
  87
  88                 Function1<Variable, String> function = getUCPipelineInfoFunctionCached(graph, moduleType);
  89                 if (function == null)
  90                         return null;
  91
  92                 String result;
  93                 try {
  94                         Variable variable = Variables.getVariable(graph, module);
  95                         Variable moduleVariable = Variables.possibleActiveVariable(graph, variable);
  96                         if (moduleVariable == null)
  97                                 moduleVariable = variable;
  98
  99                         result = Simantics.applySCLRead(graph, function, moduleVariable);
 100                 } catch (PendingVariableException | MissingVariableValueException e) {
 101                         result = null;
 102                 } catch (MissingVariableException e) {
 103                     // the requested variable is missing from the UC
 104                 String message = e.getMessage();
 105                     LOGGER.warn("Missing variable for calculating style with function {} {}", function, message);
 106                     result = "<" + message + ">";
 107                 }
 108
 109                 if (isVertex) {
 110                         double[] coords = graph.getRelatedValue(mapElement, DIA.HasLocation);
 111                         Point2D p = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords[0], coords[1]), null);
 112                         return new StyleResult(p, p, result);
 113                 }
 114                 else if (isEdge) {
 115                         Resource v1 = graph.getSingleObject(mapElement, DN.HasStartVertex);
 116                         double[] coords1 = graph.getRelatedValue(v1, DIA.HasLocation);
 117                         Resource v2 = graph.getSingleObject(mapElement, DN.HasEndVertex);
 118                         double[] coords2 = graph.getRelatedValue(v2, DIA.HasLocation);
 119                         Point2D p1 = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords1[0], coords1[1]), null);
 120                         Point2D p2 = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords2[0], coords2[1]), null);
 121
 122                         return new StyleResult(p1, p2, result);
 123                 }
 124
 125                 return null;
 126         }
 127
 128         @Override
 129         public void applyStyleForNode(EvaluationContext evaluationContext, INode parent, StyleResult result) {
 130                 if (result == null) {
 131                         cleanupStyleForNode(evaluationContext, parent);
 132                         return;
 133                 }
 134
 135                 DistrictNetworkStaticInfoNode node = ProfileVariables.claimChild(parent, "*", DistrictNetworkStaticInfoNode.NODE_KEY, DistrictNetworkStaticInfoNode.class, evaluationContext);
 136                 if (node == null)
 137                         return;
 138
 139                 Point2D p1 = result.p1;
 140                 Point2D p2 = result.p2;
 141
 142                 if (p1.equals(p2)) {
 143                         node.setLocation(p1, new Point2D.Double(1.0, 0.0));
 144                 }
 145                 else {
 146                         double sign = Math.signum(p1.getX() - p2.getX());
 147                         Point2D.Double origin = new Point2D.Double(0.5 * (p1.getX() + p2.getX()), 0.5 * (p1.getY() + p2.getY()));
 148                         Point2D direction = new Point2D.Double(0.5 * sign * (p1.getX() - p2.getX()), 0.5 * sign * (p1.getY() - p2.getY()));
 149
 150                         node.setLocation(origin, direction);
 151                 }
 152
 153                 node.setInfo(result.info);
 154         }
 155
 156         private static Function1<Variable, String> getUCPipelineInfoFunctionCached(ReadGraph graph, Resource componentType)
 157                         throws DatabaseException {
 158                 return graph.syncRequest(new UCPipelineInfoRequest(componentType), TransientCacheListener.instance());
 159         }
 160
 161         private static final class UCPipelineInfoRequest extends ResourceRead<Function1<Variable, String>> {
 162                 public UCPipelineInfoRequest(Resource resource) {
 163                         super(resource);
 164                 }
 165
 166                 @SuppressWarnings("unchecked")
 167                 @Override
 168                 public Function1<Variable, String> perform(ReadGraph graph) throws DatabaseException {
 169                         Resource actionsModule = Layer0Utils.getPossibleChild(graph, resource, ACTIONS_MODULE);
 170                         if (actionsModule == null || !graph.isInstanceOf(actionsModule, Layer0.getInstance(graph).SCLModule))
 171                                 return null;
 172
 173                         String uri = graph.getURI(actionsModule);
 174                         SCLContext sclContext = SCLContext.getCurrent();
 175                         Object oldGraph = sclContext.get("graph");
 176                         try {
 177                                 sclContext.put("graph", graph);
 178                                 return (Function1<Variable, String>) SCLOsgi.MODULE_REPOSITORY.getValue(uri, PIPELINE_INFO);
 179                         } catch (ValueNotFound e1) {
 180                                 return null;
 181                         } finally {
 182                                 sclContext.put("graph", oldGraph);
 183                         }
 184                 }
 185         }
 186
 187         @Override
 188         protected void cleanupStyleForNode(EvaluationContext evaluationContext, INode node) {
 189                 ProfileVariables.denyChild(node, "*", DistrictNetworkStaticInfoNode.NODE_KEY);
 190         }
 191 }