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.MissingVariableValueException;
  13 import org.simantics.db.layer0.exception.PendingVariableException;
  14 import org.simantics.db.layer0.util.Layer0Utils;
  15 import org.simantics.db.layer0.variable.Variable;
  16 import org.simantics.db.layer0.variable.Variables;
  17 import org.simantics.diagram.profile.StyleBase;
  18 import org.simantics.diagram.stubs.DiagramResource;
  19 import org.simantics.district.network.DistrictNetworkUtil;
  20 import org.simantics.district.network.ontology.DistrictNetworkResource;
  21 import org.simantics.district.network.profile.MidBranchEdgeSetRequest;
  22 import org.simantics.district.network.ui.nodes.DistrictNetworkNodeUtils;
  23 import org.simantics.district.network.ui.nodes.DistrictNetworkStaticInfoNode;
  24 import org.simantics.layer0.Layer0;
  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.structural.stubs.StructuralResource2;
  33
  34 public class DistrictNetworkStaticInfoStyle extends StyleBase<DistrictNetworkStaticInfoStyle.StyleResult> {
  35
  36         private static final String ACTIONS_MODULE = "Actions";
  37         private static final String PIPELINE_INFO = "pipelineInfo";
  38
  39         public static class StyleResult {
  40                 public StyleResult(Point2D p1, Point2D p2, String info) {
  41                         this.p1 = p1;
  42                         this.p2 = p2;
  43                         this.info = info;
  44                 }
  45
  46                 public Point2D p1;
  47                 public Point2D p2;
  48                 public String info;
  49         }
  50
  51         public DistrictNetworkStaticInfoStyle(Resource style) {
  52                 super(style);
  53         }
  54
  55         @Override
  56         public StyleResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource mapElement)
  57                         throws DatabaseException {
  58                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  59
  60                 boolean isEdge = graph.isInstanceOf(mapElement, DN.Edge);
  61                 boolean isVertex = graph.isInstanceOf(mapElement, DN.Vertex);
  62                 if (!isEdge && !isVertex)
  63                         return null;
  64
  65                 if (isEdge) {
  66                         Resource diagram = graph.getSingleObject(mapElement, Layer0.getInstance(graph).PartOf);
  67                         Set<Resource> edgesToUse = graph.syncRequest(new MidBranchEdgeSetRequest(diagram), TransientCacheListener.instance());
  68                         if (!edgesToUse.contains(mapElement))
  69                                 return null;
  70                 }
  71
  72                 DiagramResource DIA = DiagramResource.getInstance(graph);
  73                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
  74
  75                 Resource module = DistrictNetworkUtil.getMappedComponentCached(graph, mapElement);
  76                 if (module == null)
  77                         return null;
  78
  79                 Resource moduleType = graph.getPossibleType(module, STR.Component);
  80                 if (moduleType == null)
  81                         return null;
  82
  83                 Function1<Variable, String> function = getUCPipelineInfoFunctionCached(graph, moduleType);
  84                 if (function == null)
  85                         return null;
  86
  87                 String result;
  88                 try {
  89                         Variable variable = Variables.getVariable(graph, module);
  90                         Variable moduleVariable = Variables.possibleActiveVariable(graph, variable);
  91                         if (moduleVariable == null)
  92                                 moduleVariable = variable;
  93
  94                         result = Simantics.applySCLRead(graph, function, moduleVariable);
  95                 } catch (PendingVariableException | MissingVariableValueException e) {
  96                         result = null;
  97                 }
  98
  99                 if (isVertex) {
 100                         double[] coords = graph.getRelatedValue(mapElement, DIA.HasLocation);
 101                         Point2D p = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords[0], coords[1]), null);
 102                         return new StyleResult(p, p, result);
 103                 }
 104                 else if (isEdge) {
 105                         Resource v1 = graph.getSingleObject(mapElement, DN.HasStartVertex);
 106                         double[] coords1 = graph.getRelatedValue(v1, DIA.HasLocation);
 107                         Resource v2 = graph.getSingleObject(mapElement, DN.HasEndVertex);
 108                         double[] coords2 = graph.getRelatedValue(v2, DIA.HasLocation);
 109                         Point2D p1 = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords1[0], coords1[1]), null);
 110                         Point2D p2 = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords2[0], coords2[1]), null);
 111
 112                         return new StyleResult(p1, p2, result);
 113                 }
 114
 115                 return null;
 116         }
 117
 118         @Override
 119         public void applyStyleForNode(EvaluationContext evaluationContext, INode parent, StyleResult result) {
 120                 if (result == null) {
 121                         cleanupStyleForNode(evaluationContext, parent);
 122                         return;
 123                 }
 124
 125                 DistrictNetworkStaticInfoNode node = ProfileVariables.claimChild(parent, "*", DistrictNetworkStaticInfoNode.NODE_KEY, DistrictNetworkStaticInfoNode.class, evaluationContext);
 126                 if (node == null)
 127                         return;
 128
 129                 Point2D p1 = result.p1;
 130                 Point2D p2 = result.p2;
 131
 132                 if (p1.equals(p2)) {
 133                         node.setLocation(p1, new Point2D.Double(1.0, 0.0));
 134                 }
 135                 else {
 136                         double sign = Math.signum(p1.getX() - p2.getX());
 137                         Point2D.Double origin = new Point2D.Double(0.5 * (p1.getX() + p2.getX()), 0.5 * (p1.getY() + p2.getY()));
 138                         Point2D direction = new Point2D.Double(0.5 * sign * (p1.getX() - p2.getX()), 0.5 * sign * (p1.getY() - p2.getY()));
 139
 140                         node.setLocation(origin, direction);
 141                 }
 142
 143                 node.setInfo(result.info);
 144         }
 145
 146         private static Function1<Variable, String> getUCPipelineInfoFunctionCached(ReadGraph graph, Resource componentType)
 147                         throws DatabaseException {
 148                 return graph.syncRequest(new UCPipelineInfoRequest(componentType), TransientCacheListener.instance());
 149         }
 150
 151         private static final class UCPipelineInfoRequest extends ResourceRead<Function1<Variable, String>> {
 152                 public UCPipelineInfoRequest(Resource resource) {
 153                         super(resource);
 154                 }
 155
 156                 @SuppressWarnings("unchecked")
 157                 @Override
 158                 public Function1<Variable, String> 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, String>) SCLOsgi.MODULE_REPOSITORY.getValue(uri, PIPELINE_INFO);
 169                         } catch (ValueNotFound e1) {
 170                                 return null;
 171                         } finally {
 172                                 sclContext.put("graph", oldGraph);
 173                         }
 174                 }
 175         }
 176
 177         @Override
 178         protected void cleanupStyleForNode(EvaluationContext evaluationContext, INode node) {
 179                 ProfileVariables.denyChild(node, "*", DistrictNetworkStaticInfoNode.NODE_KEY);
 180         }
 181 }