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.DeferredRenderingNode;
  24 import org.simantics.district.network.ui.nodes.DistrictNetworkNodeUtils;
  25 import org.simantics.district.network.ui.nodes.DistrictNetworkStaticInfoNode;
  26 import org.simantics.layer0.Layer0;
  27 import org.simantics.scenegraph.INode;
  28 import org.simantics.scenegraph.ParentNode;
  29 import org.simantics.scenegraph.g2d.nodes.spatial.RTreeNode;
  30 import org.simantics.scenegraph.profile.EvaluationContext;
  31 import org.simantics.scenegraph.profile.common.ProfileVariables;
  32 import org.simantics.scenegraph.utils.NodeUtil;
  33 import org.simantics.scl.compiler.top.ValueNotFound;
  34 import org.simantics.scl.osgi.SCLOsgi;
  35 import org.simantics.scl.runtime.SCLContext;
  36 import org.simantics.scl.runtime.function.Function1;
  37 import org.simantics.structural.stubs.StructuralResource2;
  38 import org.slf4j.LoggerFactory;
  39 import org.slf4j.Logger;
  40
  41 public class DistrictNetworkStaticInfoStyle extends StyleBase<DistrictNetworkStaticInfoStyle.StyleResult> {
  42
  43     private static final Logger LOGGER = LoggerFactory.getLogger(DistrictNetworkStaticInfoStyle.class);
  44
  45         private static final String ACTIONS_MODULE = "Actions";
  46         private static final String PIPELINE_INFO = "pipelineInfo";
  47
  48         public static final String STATIC_INFO_DEFERRED = "staticInfo";
  49
  50         public static class StyleResult {
  51                 public StyleResult(Point2D p1, Point2D p2, String info) {
  52                         this.p1 = p1;
  53                         this.p2 = p2;
  54                         this.info = info;
  55                 }
  56
  57                 public Point2D p1;
  58                 public Point2D p2;
  59                 public String info;
  60         }
  61
  62         public DistrictNetworkStaticInfoStyle(Resource style) {
  63                 super();
  64         }
  65
  66         @Override
  67         public StyleResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource mapElement)
  68                         throws DatabaseException {
  69                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  70
  71                 boolean isEdge = graph.isInstanceOf(mapElement, DN.Edge);
  72                 boolean isVertex = graph.isInstanceOf(mapElement, DN.Vertex);
  73                 if (!isEdge && !isVertex)
  74                         return null;
  75
  76                 if (isEdge) {
  77                         Resource diagram = graph.getSingleObject(mapElement, Layer0.getInstance(graph).PartOf);
  78                         Set<Resource> edgesToUse = graph.syncRequest(new MidBranchEdgeSetRequest(diagram), TransientCacheListener.instance());
  79                         if (!edgesToUse.contains(mapElement))
  80                                 return null;
  81                 }
  82
  83                 DiagramResource DIA = DiagramResource.getInstance(graph);
  84                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
  85
  86                 Resource module = DistrictNetworkUtil.getMappedComponentCached(graph, mapElement);
  87                 if (module == null)
  88                         return null;
  89
  90                 Resource moduleType = graph.getPossibleType(module, STR.Component);
  91                 if (moduleType == null)
  92                         return null;
  93
  94                 Function1<Variable, String> function = getUCPipelineInfoFunctionCached(graph, moduleType);
  95                 if (function == null)
  96                         return null;
  97
  98                 String result;
  99                 try {
 100                         Variable variable = Variables.getVariable(graph, module);
 101                         Variable moduleVariable = Variables.possibleActiveVariable(graph, variable);
 102                         if (moduleVariable == null)
 103                                 moduleVariable = variable;
 104
 105                         result = Simantics.applySCLRead(graph, function, moduleVariable);
 106                 } catch (PendingVariableException | MissingVariableValueException e) {
 107                         result = null;
 108                 } catch (MissingVariableException e) {
 109                     // the requested variable is missing from the UC
 110                 String message = e.getMessage();
 111                     LOGGER.warn("Missing variable for calculating style with function {} {}", function, message);
 112                     result = "<" + message + ">";
 113                 }
 114
 115                 if (isVertex) {
 116                         double[] coords = graph.getRelatedValue(mapElement, DIA.HasLocation);
 117                         Point2D p = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords[0], coords[1]), null);
 118                         return new StyleResult(p, p, result);
 119                 }
 120                 else if (isEdge) {
 121                         Resource v1 = graph.getSingleObject(mapElement, DN.HasStartVertex);
 122                         double[] coords1 = graph.getRelatedValue(v1, DIA.HasLocation);
 123                         Resource v2 = graph.getSingleObject(mapElement, DN.HasEndVertex);
 124                         double[] coords2 = graph.getRelatedValue(v2, DIA.HasLocation);
 125                         Point2D p1 = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords1[0], coords1[1]), null);
 126                         Point2D p2 = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords2[0], coords2[1]), null);
 127
 128                         return new StyleResult(p1, p2, result);
 129                 }
 130
 131                 return null;
 132         }
 133
 134         @Override
 135         public void applyStyleForNode(EvaluationContext evaluationContext, INode parent, StyleResult result) {
 136                 if (result == null) {
 137                         cleanupStyleForNode(evaluationContext, parent);
 138                         return;
 139                 }
 140
 141                 ParentNode<?> root = (ParentNode<?>) NodeUtil.getNearestParentOfType(parent, RTreeNode.class);
 142                 if (root != null) {
 143                         DeferredRenderingNode deferred = ProfileVariables.claimChild(root, "", STATIC_INFO_DEFERRED, DeferredRenderingNode.class, evaluationContext);
 144                         deferred.setZIndex(Integer.MAX_VALUE-1);
 145                 }
 146
 147                 DistrictNetworkStaticInfoNode node = ProfileVariables.claimChild(parent, "*", DistrictNetworkStaticInfoNode.NODE_KEY, DistrictNetworkStaticInfoNode.class, evaluationContext);
 148                 if (node == null)
 149                         return;
 150
 151                 Point2D p1 = result.p1;
 152                 Point2D p2 = result.p2;
 153
 154                 if (p1.equals(p2)) {
 155                         node.setLocation(p1, new Point2D.Double(1.0, 0.0));
 156                 }
 157                 else {
 158                         double sign = Math.signum(p1.getX() - p2.getX());
 159                         Point2D.Double origin = new Point2D.Double(0.5 * (p1.getX() + p2.getX()), 0.5 * (p1.getY() + p2.getY()));
 160                         Point2D direction = new Point2D.Double(0.5 * sign * (p1.getX() - p2.getX()), 0.5 * sign * (p1.getY() - p2.getY()));
 161
 162                         node.setLocation(origin, direction);
 163                 }
 164
 165                 node.setInfo(result.info);
 166         }
 167
 168         private static Function1<Variable, String> getUCPipelineInfoFunctionCached(ReadGraph graph, Resource componentType)
 169                         throws DatabaseException {
 170                 return graph.syncRequest(new UCPipelineInfoRequest(componentType), TransientCacheListener.instance());
 171         }
 172
 173         private static final class UCPipelineInfoRequest extends ResourceRead<Function1<Variable, String>> {
 174                 public UCPipelineInfoRequest(Resource resource) {
 175                         super(resource);
 176                 }
 177
 178                 @SuppressWarnings("unchecked")
 179                 @Override
 180                 public Function1<Variable, String> perform(ReadGraph graph) throws DatabaseException {
 181                         Resource actionsModule = Layer0Utils.getPossibleChild(graph, resource, ACTIONS_MODULE);
 182                         if (actionsModule == null || !graph.isInstanceOf(actionsModule, Layer0.getInstance(graph).SCLModule))
 183                                 return null;
 184
 185                         String uri = graph.getURI(actionsModule);
 186                         SCLContext sclContext = SCLContext.getCurrent();
 187                         Object oldGraph = sclContext.get("graph");
 188                         try {
 189                                 sclContext.put("graph", graph);
 190                                 return (Function1<Variable, String>) SCLOsgi.MODULE_REPOSITORY.getValue(uri, PIPELINE_INFO);
 191                         } catch (ValueNotFound e1) {
 192                                 return null;
 193                         } finally {
 194                                 sclContext.put("graph", oldGraph);
 195                         }
 196                 }
 197         }
 198
 199         @Override
 200         protected void cleanupStyleForNode(EvaluationContext evaluationContext, INode node) {
 201                 ProfileVariables.denyChild(node, "*", DistrictNetworkStaticInfoNode.NODE_KEY);
 202         }
 203 }