org.simantics.district.network/src/org/simantics/district/network/profile/DNElementColorStyle.java

   1 package org.simantics.district.network.profile;
   2
   3 import java.awt.Color;
   4
   5 import org.simantics.Simantics;
   6 import org.simantics.db.ReadGraph;
   7 import org.simantics.db.Resource;
   8 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
   9 import org.simantics.db.exception.DatabaseException;
  10 import org.simantics.scenegraph.INode;
  11 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
  12 import org.simantics.scenegraph.profile.EvaluationContext;
  13 import org.simantics.scenegraph.profile.common.ProfileVariables;
  14
  15 /**
  16  * @author Tuukka Lehtonen
  17  * @since 1.35.0
  18  */
  19 public class DNElementColorStyle extends ThrottledStyleBase<Color> {
  20
  21         private static final boolean DEBUG = false;
  22
  23         @Override
  24         public Color calculateThrottledStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource groupItem) throws DatabaseException {
  25                 DiagramSettings ds = graph.syncRequest(new DiagramSettingsRequest(runtimeDiagram), TransientCacheAsyncListener.instance());
  26                 // Prevent PendingVariableExceptions from coming through
  27                 boolean wasSynchronous = graph.setSynchronous(true);
  28                 try {
  29                         if (ds.elementColoringFunction.isPresent()) {
  30                                 if (DEBUG)
  31                                         System.out.print("elementColoringFunction: " + ds.elementColoringFunction + "(" + groupItem + "): ");
  32                                 Double t = Simantics.applySCLRead(graph, ds.elementColoringFunction.get(), groupItem);
  33                                 if (DEBUG)
  34                                         System.out.print(t);
  35                                 if (t != null) {
  36                                         Color result = ds.coloringGradient.get(t);
  37                                         //System.out.println("color(" + t + "): " + result);
  38                                         return result;
  39                                 }
  40                         }
  41                 }
  42                 finally {
  43                         graph.setSynchronous(wasSynchronous);
  44                 }
  45                 return null;
  46         }
  47
  48         @Override
  49         public void applyThrottledStyleForNode(EvaluationContext observer, INode node, Color color) {
  50                 SingleElementNode n = (SingleElementNode) node;
  51                 for (INode nn : n.getNodes())
  52                         ProfileVariables.claimNodeProperty(nn, "dynamicColor", color, observer);
  53         }
  54
  55         @Override
  56         protected void cleanupStyleForNode(EvaluationContext evaluationContext, INode node) {
  57                 SingleElementNode n = (SingleElementNode) node;
  58                 for (INode nn : n.getNodes())
  59                         ProfileVariables.claimNodeProperty(nn, "dynamicColor", null, evaluationContext);
  60         }
  61
  62 }