gerrit.simantics Code Review - simantics/platform.git/blob

   1 package org.simantics.modeling.ui.diagram.monitor;
   2
   3 import java.text.DecimalFormat;
   4 import java.text.DecimalFormatSymbols;
   5 import java.util.Locale;
   6
   7 import org.simantics.common.format.Formatter;
   8 import org.simantics.databoard.Bindings;
   9 import org.simantics.db.ReadGraph;
  10 import org.simantics.db.RelationContext;
  11 import org.simantics.db.Resource;
  12 import org.simantics.db.common.adaption.SimpleContextualAdapter;
  13 import org.simantics.db.exception.DatabaseException;
  14 import org.simantics.diagram.stubs.DiagramResource;
  15 import org.simantics.layer0.Layer0;
  16
  17 public class RealizedFormatterAdapter extends SimpleContextualAdapter<Formatter, RelationContext> {
  18
  19         @Override
  20         public Formatter adapt(ReadGraph graph, Resource source, RelationContext context) throws DatabaseException {
  21
  22                 Layer0 L0 = Layer0.getInstance(graph);
  23                 DiagramResource DIA = DiagramResource.getInstance(graph);
  24                 Resource formatter = context.getStatement().getObject();
  25
  26                 String definition = graph.getRelatedValue(formatter, DIA.RealizedFormatter_HasDefinition, Bindings.STRING);
  27                 final String label = graph.getPossibleRelatedAdapter(formatter, L0.HasLabel, String.class);
  28                 final DecimalFormat format = new DecimalFormat(definition, DecimalFormatSymbols.getInstance(Locale.US));
  29                 final String toString = label + " (" + definition + ")";
  30
  31                 return new Formatter() {
  32
  33                         private String formatNumber(Number v) {
  34                                 double dv = v.doubleValue();
  35                                 if (Double.isInfinite(dv)) {
  36                                         return (dv == Double.POSITIVE_INFINITY) ? "\u221E" : "-\u221E";
  37                                 } else if (Double.isNaN(dv)) {
  38                                         return "NaN";
  39                                 } else {
  40                                         return format.format(v);
  41                                 }
  42                         }
  43
  44                         @Override
  45                         public String format(Object object) {
  46                                 if (object instanceof Number) {
  47                                         Number num = (Number) object;
  48                                         return formatNumber(num);
  49                                 }
  50                                 else if(object instanceof String) {
  51                                         try {
  52                                                 Double d = Double.parseDouble((String)object);
  53                                                 return formatNumber(d);
  54                                         } catch (NumberFormatException e) {
  55                                                 return (String)object;
  56                                         }
  57                                 } else {
  58                                         return object != null ? object.toString() : "";
  59                                 }
  60                         }
  61
  62                         @Override
  63                         public String toString() {
  64                                 return toString;
  65                         }
  66
  67                 };
  68
  69         }
  70
  71 }