bundles/org.simantics.spreadsheet.ui/src/org/simantics/spreadsheet/ui/SelectionListener.java

   1 package org.simantics.spreadsheet.ui;\r
   2 \r
   3 import javax.swing.JTable;\r
   4 import javax.swing.JTextField;\r
   5 import javax.swing.event.ListSelectionEvent;\r
   6 import javax.swing.event.ListSelectionListener;\r
   7 \r
   8 import org.eclipse.jface.viewers.StructuredSelection;\r
   9 import org.eclipse.swt.widgets.Display;\r
  10 import org.simantics.databoard.binding.mutable.Variant;\r
  11 import org.simantics.db.layer0.variable.Variable;\r
  12 import org.simantics.spreadsheet.Adaptable;\r
  13 import org.simantics.spreadsheet.ClientModel;\r
  14 import org.simantics.spreadsheet.util.SpreadsheetUtils;\r
  15 import org.simantics.utils.ui.jface.ActiveSelectionProvider;\r
  16 import org.simantics.ui.selection.VariableWorkbenchSelectionElement;\r
  17 \r
  18 public class SelectionListener implements ListSelectionListener {\r
  19 \r
  20         final JTable table;\r
  21         final JTextField expression;\r
  22         final ExpressionTextListener etl;\r
  23         final ActiveSelectionProvider selectionProvider;\r
  24         final Adaptable serverModel;\r
  25         final ClientModel clientModel;\r
  26 \r
  27         // It is necessary to keep the table since it is not possible\r
  28         // to determine the table from the event's source\r
  29         SelectionListener(JTable table, JTextField expression, ExpressionTextListener etl, ActiveSelectionProvider selectionProvider, Adaptable serverModel, ClientModel clientModel) {\r
  30                 assert(table != null);\r
  31                 assert(selectionProvider != null);\r
  32                 this.table = table;\r
  33                 this.expression = expression;\r
  34                 this.etl = etl;\r
  35                 this.selectionProvider = selectionProvider;\r
  36                 this.serverModel = serverModel;\r
  37                 this.clientModel = clientModel;\r
  38         }\r
  39 \r
  40         public void valueChanged(ListSelectionEvent e) {\r
  41 \r
  42                 final int[] selectedColumns = table.getSelectedColumns();\r
  43                 final int[] selectedRows = table.getSelectedRows();\r
  44 \r
  45                 if(selectedColumns.length == 1 && selectedRows.length == 1) {\r
  46 \r
  47                         final TableSelection tableSelection = new TableSelection() {\r
  48 \r
  49                                 @Override\r
  50                                 public int[] getColumns() {\r
  51                                         return selectedColumns;\r
  52                                 }\r
  53 \r
  54                                 @Override\r
  55                                 public int[] getRows() {\r
  56                                         return selectedRows;\r
  57                                 }\r
  58 \r
  59                         };\r
  60 \r
  61                         final Variable sheet = serverModel.getAdapter(Variable.class);\r
  62 \r
  63                         final Object cell = table.getValueAt(selectedRows[0], selectedColumns[0]);\r
  64                         if(cell != null) {\r
  65                                 String expression = clientModel.getPossiblePropertyAt(SpreadsheetUtils.cellName(selectedRows[0], selectedColumns[0]), ClientModel.CONTENT_EXPRESSION);\r
  66                                 if(expression == null) {\r
  67                                         Variant content = SpreadsheetUtils.getSafeClientVariant(clientModel, SpreadsheetUtils.cellName(selectedRows[0], selectedColumns[0]), ClientModel.CONTENT);\r
  68                                         if(content != null)\r
  69                                                 expression =  content.getValue().toString();\r
  70                                         else\r
  71                                                 expression = "";\r
  72                                 } else {\r
  73                                         expression = "=" + expression;\r
  74                                 }\r
  75                                 if (this.etl != null) {\r
  76                                         if(expression != null) {\r
  77                                                 SelectionListener.this.etl.setCell(expression, selectedRows[0], selectedColumns[0]);\r
  78                                         } else {\r
  79                                                 SelectionListener.this.etl.setCell("", -1, -1);\r
  80                                         }\r
  81                                 }\r
  82 \r
  83                                 Display.getDefault().asyncExec(new Runnable() {\r
  84                                         @Override\r
  85                                         public void run() {\r
  86 \r
  87                                                 if(sheet != null) {\r
  88                                                         selectionProvider.setSelection(new StructuredSelection(new VariableWorkbenchSelectionElement(sheet)));\r
  89                                                 } else {\r
  90                                                         selectionProvider.setSelection(new StructuredSelection(new Object[] { cell, "", tableSelection}));\r
  91                                                 }\r
  92 \r
  93                                         }\r
  94                                 });\r
  95                         } else {\r
  96 \r
  97                                 Display.getDefault().asyncExec(new Runnable() {\r
  98 \r
  99                                         @Override\r
 100                                         public void run() {\r
 101 \r
 102                                                 if(selectionProvider == null) return;\r
 103 \r
 104                                                 if(sheet != null) {\r
 105                                                         selectionProvider.setSelection(new StructuredSelection(new Object[] { sheet, "", tableSelection}));\r
 106                                                 } else {\r
 107                                                         selectionProvider.setSelection(new StructuredSelection(new Object[] { "", "", tableSelection}));\r
 108                                                 }\r
 109 \r
 110                                         }\r
 111 \r
 112                                 });\r
 113 \r
 114                         }\r
 115                 }\r
 116 \r
 117                 if (e.getValueIsAdjusting()) {\r
 118                         // The mouse button has not yet been released\r
 119                 }\r
 120 \r
 121         }\r
 122 \r
 123 }\r