Java JTable Column addSpaceSelection(final JTable table, final int column)

Description

If this table has a editable boolean column, the user can press space to toggle the selection of the selected rows for the column.

License

Open Source License

Parameter

Parameter	Description
table	the table to add the key listener
column	the column which has values of boolean class and is editable

Declaration

public static void addSpaceSelection(final JTable table, final int column) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.JTable;

import javax.swing.table.TableModel;

public class Main {
    /**//from   w w  w  . j av a  2s. c om
     * If this table has a editable boolean column, the user can press space to toggle the selection of the selected rows for the column.
     * @param table the table to add the key listener
     * @param column the column which has values of boolean class and is editable
     */
    public static void addSpaceSelection(final JTable table, final int column) {
        table.putClientProperty("JTable.autoStartsEdit", Boolean.FALSE);
        table.addKeyListener(new KeyAdapter() {

            @Override
            public void keyReleased(KeyEvent e) {

                if (e.getKeyCode() == KeyEvent.VK_SPACE) {
                    TableModel model = table.getModel();
                    /*
                     * TODO: improve performance if needed
                     * 
                     * notes:
                     * beginUpdate + endUpdate will improve performance
                     * but will deselect all selected rows after endUpdate 
                     * is called. Therefore currently not used due to unexpected
                     * behaviour.
                     */
                    //if (model instanceof ThreadSafeDefaultTableModel) {
                    //    ((ThreadSafeDefaultTableModel) model).beginUpdate();
                    //}
                    for (int row : table.getSelectedRows()) {
                        int rowModel = table.convertRowIndexToModel(row);
                        if (model.isCellEditable(rowModel, column)) {
                            model.setValueAt(!(Boolean) model.getValueAt(rowModel, column), rowModel, column);
                        }
                    }
                    //if (model instanceof ThreadSafeDefaultTableModel) {
                    //    ((ThreadSafeDefaultTableModel) model).endUpdate();
                    //}
                    e.consume();
                }
            }
        });
    }
}

Related

1. aceptarTeclaPresionada(KeyEvent e, JTable pTabla, JTextField pTextoDeBusqueda, int pColumna)
2. ajustarAnchoColumnas(JTable table)
3. buscarDescripcion(KeyEvent e, JTable pTabla, JTextField pTextoDeBusqueda, int pColumna)
4. cloneTableColumn(TableColumn c)
5. cloneTableColumnModel(TableColumnModel m)