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.Objects;
   5 import java.util.Set;
   6
   7 import org.simantics.Simantics;
   8 import org.simantics.db.ReadGraph;
   9 import org.simantics.db.Resource;
  10 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
  11 import org.simantics.db.common.request.ResourceRead;
  12 import org.simantics.db.exception.DatabaseException;
  13 import org.simantics.db.layer0.exception.MissingVariableException;
  14 import org.simantics.db.layer0.exception.MissingVariableValueException;
  15 import org.simantics.db.layer0.exception.PendingVariableException;
  16 import org.simantics.db.layer0.util.Layer0Utils;
  17 import org.simantics.db.layer0.variable.Variable;
  18 import org.simantics.db.layer0.variable.Variables;
  19 import org.simantics.diagram.profile.StyleBase;
  20 import org.simantics.diagram.stubs.DiagramResource;
  21 import org.simantics.district.network.DistrictNetworkUtil;
  22 import org.simantics.district.network.ontology.DistrictNetworkResource;
  23 import org.simantics.district.network.profile.MidBranchEdgeSetRequest;
  24 import org.simantics.district.network.ui.nodes.DeferredRenderingNode;
  25 import org.simantics.district.network.ui.nodes.DistrictNetworkEdgeNode;
  26 import org.simantics.district.network.ui.nodes.DistrictNetworkNodeUtils;
  27 import org.simantics.district.network.ui.nodes.DistrictNetworkStaticInfoNode;
  28 import org.simantics.layer0.Layer0;
  29 import org.simantics.scenegraph.INode;
  30 import org.simantics.scenegraph.ParentNode;
  31 import org.simantics.scenegraph.g2d.IG2DNode;
  32 import org.simantics.scenegraph.g2d.nodes.ConnectionNode;
  33 import org.simantics.scenegraph.g2d.nodes.spatial.RTreeNode;
  34 import org.simantics.scenegraph.profile.EvaluationContext;
  35 import org.simantics.scenegraph.profile.common.ProfileVariables;
  36 import org.simantics.scenegraph.utils.NodeUtil;
  37 import org.simantics.scl.compiler.top.ValueNotFound;
  38 import org.simantics.scl.osgi.SCLOsgi;
  39 import org.simantics.scl.runtime.SCLContext;
  40 import org.simantics.scl.runtime.function.Function1;
  41 import org.simantics.structural.stubs.StructuralResource2;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 public class DistrictNetworkStaticInfoStyle extends StyleBase<DistrictNetworkStaticInfoStyle.StyleResult> {
  46
  47     private static final Logger LOGGER = LoggerFactory.getLogger(DistrictNetworkStaticInfoStyle.class);
  48
  49         private static final String ACTIONS_MODULE = "Actions";
  50         private static final String PIPELINE_INFO = "pipelineInfo";
  51
  52         public static final String STATIC_INFO_DEFERRED = "staticInfo";
  53
  54         public static class StyleResult {
  55                 public StyleResult(Resource r, Point2D p1, String info) {
  56                         this.r = r;
  57                         this.p1 = p1;
  58                         this.info = info;
  59                 }
  60
  61                 public final Resource r;
  62                 public final Point2D p1;
  63                 public final String info;
  64
  65                 @Override
  66                 public int hashCode() {
  67                         final int prime = 31;
  68                         int result = 1;
  69                         result = prime * result + r.hashCode();
  70                         result = prime * result + ((info == null) ? 0 : info.hashCode());
  71                         result = prime * result + ((p1 == null) ? 0 : p1.hashCode());
  72                         return result;
  73                 }
  74                 @Override
  75                 public boolean equals(Object obj) {
  76                         if (this == obj)
  77                                 return true;
  78                         if (obj == null)
  79                                 return false;
  80                         if (getClass() != obj.getClass())
  81                                 return false;
  82                         StyleResult other = (StyleResult) obj;
  83                         return r.equals(other.r) && Objects.equals(info, other.info) && Objects.equals(p1, other.p1);
  84                 }
  85         }
  86
  87         public DistrictNetworkStaticInfoStyle(Resource style) {
  88                 super();
  89         }
  90
  91         private static final Point2D EDGE = new Point2D.Double();
  92
  93         @Override
  94         public StyleResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource mapElement)
  95                         throws DatabaseException {
  96                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  97                 Set<Resource> types = graph.getTypes(mapElement);
  98                 boolean isEdge = types.contains(DN.Edge);
  99                 boolean isVertex = types.contains(DN.Vertex);
 100                 if (!isEdge && !isVertex)
 101                         return null;
 102
 103                 if (isEdge) {
 104                         Resource diagram = graph.getSingleObject(mapElement, Layer0.getInstance(graph).PartOf);
 105                         Set<Resource> edgesToUse = graph.syncRequest(new MidBranchEdgeSetRequest(diagram), TransientCacheListener.instance());
 106                         if (!edgesToUse.contains(mapElement))
 107                                 return null;
 108                 }
 109
 110                 Resource module = DistrictNetworkUtil.getMappedComponentCached(graph, mapElement);
 111                 if (module == null)
 112                         return null;
 113
 114                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
 115                 Resource moduleType = graph.getPossibleType(module, STR.Component);
 116                 if (moduleType == null)
 117                         return null;
 118
 119                 Function1<Variable, String> function = getUCPipelineInfoFunctionCached(graph, moduleType);
 120                 if (function == null)
 121                         return null;
 122
 123                 String result;
 124                 try {
 125                         Variable variable = Variables.getVariable(graph, module);
 126                         Variable moduleVariable = Variables.possibleActiveVariable(graph, variable);
 127                         if (moduleVariable == null)
 128                                 moduleVariable = variable;
 129
 130                         result = Simantics.applySCLRead(graph, function, moduleVariable);
 131                 } catch (PendingVariableException | MissingVariableValueException e) {
 132                         result = null;
 133                 } catch (MissingVariableException e) {
 134                         // the requested variable is missing from the UC
 135                         String message = e.getMessage();
 136                         LOGGER.warn("Missing variable for calculating style with function {} {}", function, message);
 137                         result = "<" + message + ">";
 138                 }
 139
 140                 if (isVertex) {
 141                         DiagramResource DIA = DiagramResource.getInstance(graph);
 142                         double[] coords = graph.getRelatedValue(mapElement, DIA.HasLocation);
 143                         Point2D p = DistrictNetworkNodeUtils.calculatePoint2D(new Point2D.Double(coords[0], coords[1]), null);
 144                         return new StyleResult(mapElement, p, result);
 145                 } else if (isEdge) {
 146                         return new StyleResult(mapElement, EDGE, result);
 147                 }
 148                 return null;
 149         }
 150
 151         @Override
 152         public void applyStyleForNode(EvaluationContext evaluationContext, INode parent, StyleResult result) {
 153                 if (result == null) {
 154                         cleanupStyleForNode(evaluationContext, parent);
 155                         return;
 156                 }
 157
 158                 ParentNode<?> root = (ParentNode<?>) NodeUtil.getNearestParentOfType(parent, RTreeNode.class);
 159                 if (root != null) {
 160                         DeferredRenderingNode deferred = ProfileVariables.claimChild(root, "", STATIC_INFO_DEFERRED, DeferredRenderingNode.class, evaluationContext);
 161                         deferred.setZIndex(Integer.MAX_VALUE-1);
 162                 }
 163
 164                 DistrictNetworkStaticInfoNode node = ProfileVariables.claimChild(parent, "*", DistrictNetworkStaticInfoNode.NODE_KEY, DistrictNetworkStaticInfoNode.class, evaluationContext);
 165                 if (node == null)
 166                         return;
 167
 168                 Point2D p1 = result.p1;
 169                 if (p1 != EDGE) {
 170                         node.setLocation(p1, new Point2D.Double(1.0, 0.0));
 171                 } else {
 172                         // StaticInfoNode takes care of positioning the text during render
 173                         // based on the found DistrictNetworkEdgeNode's information.
 174                         for (IG2DNode n : ((ConnectionNode)parent).getNodes()) {
 175                                 if (n instanceof DistrictNetworkEdgeNode) {
 176                                         node.setEdgeNode((DistrictNetworkEdgeNode) n);
 177                                 }
 178                         }
 179                 }
 180
 181                 node.setInfo(result.info);
 182         }
 183
 184         private static Function1<Variable, String> getUCPipelineInfoFunctionCached(ReadGraph graph, Resource componentType)
 185                         throws DatabaseException {
 186                 return graph.syncRequest(new UCPipelineInfoRequest(componentType), TransientCacheListener.instance());
 187         }
 188
 189         private static final class UCPipelineInfoRequest extends ResourceRead<Function1<Variable, String>> {
 190                 public UCPipelineInfoRequest(Resource resource) {
 191                         super(resource);
 192                 }
 193
 194                 @SuppressWarnings("unchecked")
 195                 @Override
 196                 public Function1<Variable, String> perform(ReadGraph graph) throws DatabaseException {
 197                         Resource actionsModule = Layer0Utils.getPossibleChild(graph, resource, ACTIONS_MODULE);
 198                         if (actionsModule == null || !graph.isInstanceOf(actionsModule, Layer0.getInstance(graph).SCLModule))
 199                                 return null;
 200
 201                         String uri = graph.getURI(actionsModule);
 202                         SCLContext sclContext = SCLContext.getCurrent();
 203                         Object oldGraph = sclContext.get("graph");
 204                         try {
 205                                 sclContext.put("graph", graph);
 206                                 return (Function1<Variable, String>) SCLOsgi.MODULE_REPOSITORY.getValue(uri, PIPELINE_INFO);
 207                         } catch (ValueNotFound e1) {
 208                                 return null;
 209                         } finally {
 210                                 sclContext.put("graph", oldGraph);
 211                         }
 212                 }
 213         }
 214
 215         @Override
 216         protected void cleanupStyleForNode(EvaluationContext evaluationContext, INode node) {
 217                 ProfileVariables.denyChild(node, "*", DistrictNetworkStaticInfoNode.NODE_KEY);
 218         }
 219
 220 }