bundles/org.simantics.views.swt.client/src/org/simantics/views/swt/client/impl/SWTCCombo.java

   1 package org.simantics.views.swt.client.impl;\r
   2 \r
   3 import java.util.List;\r
   4 \r
   5 import org.eclipse.swt.custom.CCombo;\r
   6 import org.eclipse.swt.events.SelectionEvent;\r
   7 import org.eclipse.swt.events.SelectionListener;\r
   8 import org.eclipse.swt.widgets.Composite;\r
   9 import org.simantics.scl.runtime.tuple.Tuple;\r
  10 \r
  11 \r
  12 public class SWTCCombo extends SWTComboBase<CCombo> {\r
  13         \r
  14         private static final long serialVersionUID = 2529612234578912642L;\r
  15 \r
  16         private final SelectionListener listener = new SelectionListener() {\r
  17 \r
  18                 @Override\r
  19                 public void widgetSelected(SelectionEvent e) {\r
  20                         \r
  21                         int selectionIndex = control.getSelectionIndex();\r
  22                         if (selectionIndex == -1)\r
  23                             return;\r
  24 \r
  25                         String[] items = control.getItems();\r
  26                         \r
  27                         String key = items[selectionIndex];\r
  28                         \r
  29                         if(modifier != null)\r
  30                                 modifier.apply(key);\r
  31                         \r
  32                         selected = key;\r
  33                         \r
  34                 }\r
  35 \r
  36                 @Override\r
  37                 public void widgetDefaultSelected(SelectionEvent e) {\r
  38                         \r
  39                         widgetSelected(e);\r
  40                         \r
  41                 }\r
  42                 \r
  43         };\r
  44 \r
  45         @Override\r
  46         public void createControls(Composite parent) {\r
  47                 \r
  48                 control = new CCombo(parent, style);\r
  49                 control.addSelectionListener(listener);\r
  50                 \r
  51                 setProperties();\r
  52                 \r
  53         }\r
  54         \r
  55         public void synchronizeAvailable(List<Tuple> available) {\r
  56                 if(available != null) {\r
  57                         \r
  58                 control.removeSelectionListener(listener);\r
  59                 control.setData(available);\r
  60                 control.clearSelection();\r
  61                 try {\r
  62                         control.removeAll();\r
  63                 } catch (Throwable t) {\r
  64                     t.printStackTrace();\r
  65                 }\r
  66                 if (available != null) {\r
  67                     int index = 0;\r
  68                     for(Tuple key : available) {\r
  69                         control.add((String)key.toArray()[0]);\r
  70                         control.setData((String)key.toArray()[0], index++);\r
  71                     }\r
  72                     String selectionKey = (String)control.getData("_SelectionKey");\r
  73                     if(selectionKey != null) {\r
  74                         Integer selectionIndex = (Integer)control.getData(selectionKey);\r
  75                         if(selectionIndex != null) control.select(selectionIndex);\r
  76                     }\r
  77                 }\r
  78                 control.addSelectionListener(listener);\r
  79                         \r
  80 //                      // This seems to be necessary for correct size computations\r
  81 //                      widget.getControl().getParent().layout(true);\r
  82                 }\r
  83         }\r
  84 \r
  85         public void synchronizeSelected(String selected) {\r
  86                 if(selected != null) {\r
  87                         \r
  88             control.removeSelectionListener(listener);\r
  89                 control.setData("_SelectionKey", selected);\r
  90                 Integer selectionIndex = (Integer)control.getData(selected);\r
  91                 if(selectionIndex != null) control.select(selectionIndex);\r
  92             control.addSelectionListener(listener);\r
  93                         \r
  94 //                      // This seems to be necessary for correct size computations\r
  95 //                      widget.getControl().getParent().layout(true);\r
  96                 }\r
  97         }\r
  98         \r
  99         public String readSelected() {\r
 100                 return selected;\r
 101         }\r
 102         \r
 103         public List<Tuple> readAvailable() {\r
 104                 return available;\r
 105         }\r
 106         \r
 107 }\r