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

   1 package org.simantics.spreadsheet.ui;\r
   2 \r
   3 import java.awt.event.FocusEvent;\r
   4 import java.awt.event.FocusListener;\r
   5 import java.awt.event.KeyEvent;\r
   6 import java.awt.event.KeyListener;\r
   7 \r
   8 import javax.swing.JTextField;\r
   9 \r
  10 import org.simantics.databoard.Bindings;\r
  11 import org.simantics.databoard.binding.mutable.Variant;\r
  12 import org.simantics.spreadsheet.CellEditor;\r
  13 import org.simantics.spreadsheet.ClientModel;\r
  14 import org.simantics.spreadsheet.util.SpreadsheetUtils;\r
  15 \r
  16 public class ExpressionTextListener implements FocusListener, KeyListener {\r
  17 \r
  18         final private JTextField text;\r
  19         final private CellEditor editor;\r
  20         \r
  21         String undoPoint = null;\r
  22         int currentRow;\r
  23         int currentColumn;\r
  24         \r
  25         public ExpressionTextListener(JTextField text, CellEditor editor) {\r
  26                 this.text = text;\r
  27                 this.editor = editor;\r
  28         }\r
  29         \r
  30         void setCell(String text, int row, int column) {\r
  31                 this.text.setText(text);\r
  32                 this.undoPoint = text;\r
  33                 this.currentRow = row;\r
  34                 this.currentColumn = column;\r
  35         }\r
  36         \r
  37         void apply() {\r
  38                 if(undoPoint == null) {\r
  39                         // No selection\r
  40                         return;\r
  41                 }\r
  42                 String current = text.getText();\r
  43                 if(current.equals(undoPoint)) return;\r
  44                 if(currentRow == -1 || currentColumn == -1) return;\r
  45                 \r
  46                 if (current.startsWith("=")) {\r
  47                     editor.edit(null, SpreadsheetUtils.cellName(currentRow, currentColumn), ClientModel.CONTENT_EXPRESSION, current, Bindings.STRING, null);\r
  48                 } else {\r
  49                     editor.edit(null, SpreadsheetUtils.cellName(currentRow, currentColumn), Variant.ofInstance(current), null);\r
  50                 }\r
  51                 undoPoint = current;\r
  52                 \r
  53         }\r
  54         \r
  55         void cancel() {\r
  56                 if(undoPoint != null)\r
  57                         text.setText(undoPoint);\r
  58         }\r
  59         \r
  60         @Override\r
  61         public void keyTyped(KeyEvent e) {\r
  62         }\r
  63         \r
  64         @Override\r
  65         public void keyReleased(KeyEvent e) {\r
  66                 if(e.getKeyCode() == KeyEvent.VK_ENTER) {\r
  67                         apply();\r
  68                 }\r
  69                 if(e.getKeyCode() == KeyEvent.VK_ESCAPE) {\r
  70                         cancel();\r
  71                 }\r
  72         }\r
  73         \r
  74         @Override\r
  75         public void keyPressed(KeyEvent e) {\r
  76         }\r
  77         \r
  78         @Override\r
  79         public void focusGained(FocusEvent e) {\r
  80         }\r
  81 \r
  82         @Override\r
  83         public void focusLost(FocusEvent e) {\r
  84                 apply();\r
  85         }\r
  86         \r
  87 }\r