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

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