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

   1 package org.simantics.district.network.profile;
   2
   3 import org.simantics.Simantics;
   4 import org.simantics.db.ReadGraph;
   5 import org.simantics.db.Resource;
   6 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
   7 import org.simantics.db.exception.DatabaseException;
   8 import org.simantics.scenegraph.INode;
   9 import org.simantics.scenegraph.g2d.G2DSceneGraph;
  10 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
  11 import org.simantics.scenegraph.profile.EvaluationContext;
  12 import org.simantics.scenegraph.profile.common.ProfileVariables;
  13
  14 public class VertexSizeStyle extends ThrottledStyleBase<Double> {
  15
  16         private static final Double PENDING = Double.NaN;
  17         private static final Double ONE = 1.0;
  18
  19         @Override
  20         public Double calculateThrottledStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource groupItem) throws DatabaseException {
  21                 DiagramSettings ds = graph.syncRequest(new DiagramSettingsRequest(runtimeDiagram), TransientCacheAsyncListener.instance());
  22                 Double scaling = ONE;
  23                 if (ds.vertexScaleProperty.isPresent()) {
  24                         scaling = Simantics.applySCLRead(graph, ds.vertexScaleProperty.get(), groupItem);
  25                         if (scaling == null) {
  26                                 scaling = ONE;
  27                         } else {
  28 //                              System.out.println("read vertex scaling: " + scaling + " : " + ds.vertexScaleProperty);
  29                                 scaling = scaling * ds.vertexScaleGain + ds.vertexScaleBias;
  30 //                              System.out.println("RESULT: " + scaling);
  31                         }
  32                 }
  33                 return scaling;
  34         }
  35
  36         @Override
  37         public void applyThrottledStyleForNode(EvaluationContext observer, INode node, Double value) {
  38                 //System.out.println("apply: " + node + " : " + value);
  39                 SingleElementNode n = (SingleElementNode) node;
  40                 if (value == PENDING) {
  41                         ((G2DSceneGraph)node.getRootNode()).setPending(node);
  42                 } else {
  43                         ((G2DSceneGraph)node.getRootNode()).clearPending(node);
  44                 }
  45                 if (value == null)
  46                         value = ONE;
  47                 for (INode nn : n.getNodes())
  48                         ProfileVariables.claimNodeProperty(nn, "size", value, observer);
  49         }
  50
  51         @Override
  52         protected void cleanupStyleForNode(EvaluationContext evaluationContext, INode node) {
  53                 ((G2DSceneGraph)node.getRootNode()).clearPending(node);
  54                 SingleElementNode n = (SingleElementNode) node;
  55                 for (INode nn : n.getNodes())
  56                         ProfileVariables.claimNodeProperty(nn, "size", ONE, evaluationContext);
  57         }
  58
  59 }