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

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