JTable's problem of hot k

From:
"lipinxin" <lipinxin@THRWHITE.remove-dii-this>
Newsgroups:
comp.lang.java.gui
Date:
Wed, 27 Apr 2011 15:41:29 GMT
Message-ID:
<58f1e480-f156-4546-a967-4ac3c6067d71@a39g2000pre.googlegroups.com>
  To: comp.lang.java.gui
I have a JTable and set my customizing CellEditor to the column, if
the cell has been focused, the hot key to start editing it is F2, but
if i pressed any one of the function keys(F1 to F12), the cell editor
is also opened.
What's more, if i want to use Alt-F4 to close the frame, the cell
editor is opened too.

Both JDK 1.4.2 (1.4.2-b28) and JDK 6 (1.6.0_03-b05) has proved the
problem above, the code is suce as:

import javax.swing.*;
import java.util.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.event.*;

/**
 * <p>Title: TableEditorTest</p>
 * <p>Description: Create a JTable and set my customizing CellEditor
to
 * a specified column, use F2 to start editing the cell, but F1 to
F12
 * can open the CellEditor too, what's more, Alt-F4 is also open the
 * CellEditor before close the JFrame.</p>
 * <p>Copyright: Copyright (c) 2007</p>
 * @author Parson
 * @version 1.0
 */

public class TableTest
    extends JFrame
{

    public TableTest()
    {
        JTable table = new JTable ( 2 , 2 );

        getContentPane ().add ( new JScrollPane ( table ) );

        // set my cell editor
        table.getColumnModel ().getColumn ( 0 ).setCellEditor ( new
            MyCellEditor ( this , new JTextField () ) );

        table.setValueAt ( new Date () , 0 , 0 );
        table.setValueAt ( new Date () , 1 , 0 );
        table.setValueAt ( "haha!" , 0 , 1 );
        table.setValueAt ( "we are here" , 1 , 1 );
        setVisible ( true );
        pack ();
    }

    public static void main( String args[] )
    {
        TableTest test = new TableTest ();
    }

    /**
  * <p>Title: MyCellEditor</p>
  * <p>Description: my cell editor, only open an option pane.</p>
  * <p>Copyright: Copyright (c) 2007</p>
  * @author Parson
  * @version 1.0
  */
    public class MyCellEditor
     extends DefaultCellEditor
    {

        JFrame parentFrame;
        Object value;

     public MyCellEditor( JFrame frame , JTextField textField )
     {
            super ( textField );
     parentFrame = frame;
         textField.setEditable ( false );
        }

     // These methods implement the TableCellEditor interface
     public Component getTableCellEditorComponent( JTable table ,
         Object value ,
             boolean
isSelected ,
                 int row , int
column )
     {
         ( ( JTextField ) editorComponent ).setText ( "editing" );
         ( ( JTextField ) editorComponent ).setForeground
( Color.RED );
         this.value=value;

         return editorComponent;
     }

     public Object getCellEditorValue()
     {
        return this.value;
     }

     public boolean isCellEditable( EventObject evt )
     {
         if ( evt instanceof MouseEvent )
         {
                if ( ( ( MouseEvent ) evt ).getClickCount () >=
                     getClickCountToStart () )
                {
                    return true;
                }
                return false;
            }
            return true;
        }

     public boolean shouldSelectCell( EventObject evt )
     {
            return true;
        }

     public boolean stopCellEditing()
     {
            return true;
        }

     public void cancelCellEditing()
     {
            fireEditingCanceled ();
        }

        public void addCellEditorListener( CellEditorListener l )
        {
            super.addCellEditorListener ( l );
            showDialog ();
        }

     protected void showDialog()
     {
            JOptionPane.showMessageDialog(parentFrame,
                                         "The editor is opened!");
            this.cancelCellEditing();
        }
    }

}

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