bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/views/ModelToComboListener.java

   1 package org.simantics.document.linking.views;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.Collections;
   6 import java.util.List;
   7
   8 import org.eclipse.swt.custom.CCombo;
   9 import org.eclipse.swt.widgets.Display;
  10 import org.simantics.db.Resource;
  11 import org.simantics.db.common.NamedResource;
  12
  13 public abstract class ModelToComboListener implements org.simantics.db.procedure.Listener<Collection<NamedResource>> {
  14
  15         /**
  16          *
  17          */
  18         private CCombo combo;
  19         private boolean disposed = false;
  20
  21         public ModelToComboListener(CCombo combo) {
  22                 this.combo = combo;
  23         }
  24
  25         public abstract Resource getCurrentModel();
  26
  27         @Override
  28         public void execute(final Collection<NamedResource> result) {
  29                 Display.getDefault().asyncExec(new Runnable() {
  30
  31                         @Override
  32                         public void run() {
  33                                 if(combo.isDisposed()) {
  34                                         disposed = true;
  35                                         return;
  36                                 }
  37
  38                                 List<NamedResource> models = new ArrayList<NamedResource>();
  39                                 models.addAll(result);
  40                                 Collections.sort(models);
  41
  42                                 int index = -1;
  43
  44                                 //populate the combo
  45                                 combo.removeAll();
  46                                 index = -1;
  47                                 int i = 0;
  48                                 for (NamedResource model : models) {
  49                                         combo.add(model.getName());
  50                                         combo.setData(Integer.toString(i), model.getResource());
  51                                         if (model.getResource().equals(getCurrentModel()))
  52                                                 index = i;
  53                                         i++;
  54                                 }
  55
  56                                 // restore the selection
  57                                 if (index >= 0) {
  58                                         combo.select(index);
  59                                 }
  60                                 loaded();
  61                         }
  62                 });
  63
  64         }
  65
  66         public void loaded() {
  67
  68         }
  69
  70         @Override
  71         public void exception(Throwable t) {
  72
  73         }
  74
  75         @Override
  76         public boolean isDisposed() {
  77                 return disposed || combo.isDisposed();
  78         }
  79
  80         public void dispose() {
  81                 disposed = true;
  82         }
  83 }