tablecolumnselectionpopuplistener.java

JStock是一个免费股市软件

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Copyright (C) 2008 Cheok YanCheng <[e-mail]>
 */

package org.yccheok.jstock.gui;

import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JTable;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;

/**
 *
 * @author Owner
 */
public class TableColumnSelectionPopupListener extends MouseAdapter {
    public TableColumnSelectionPopupListener(int menuStartIndex) {
        this.menuStartIndex = menuStartIndex;
    }
    
    public void mousePressed(MouseEvent e) {
        maybeShowPopup(e);
    }

    public void mouseReleased(MouseEvent e) {
        maybeShowPopup(e);
    }

    private void maybeShowPopup(MouseEvent e) {
        if (e.isPopupTrigger()) {
            final Component component = e.getComponent();

            if(component instanceof javax.swing.table.JTableHeader) {
                javax.swing.table.JTableHeader jTableHeader = (javax.swing.table.JTableHeader)component;
                final JTable jTable1 = jTableHeader.getTable();
                getMyTableColumnSelectionPopupMenu(jTable1, e.getX()).show(component, e.getX(), e.getY());
            }
                
        }
    }
    
    private JPopupMenu getMyTableColumnSelectionPopupMenu(final JTable jTable1, final int mouseXLocation) {
        JPopupMenu popup = new JPopupMenu();
        TableModel tableModel = jTable1.getModel();
        final int col = tableModel.getColumnCount();
        
        for(int i=2; i<col; i++) {
            String name = tableModel.getColumnName(i);            
            
            boolean isVisible = true;
            
            try {
                TableColumn tableColumn = jTable1.getColumn(name);
            }
            catch(java.lang.IllegalArgumentException exp) {
                isVisible = false;
            }
            
            javax.swing.JCheckBoxMenuItem menuItem = new JCheckBoxMenuItem(name, isVisible);
                        
            menuItem.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent evt) {
                    String name = evt.getActionCommand();
                    JCheckBoxMenuItem menuItem = (JCheckBoxMenuItem)evt.getSource();
                    if(menuItem.isSelected() == false) {
                        JTableUtilities.removeTableColumn(jTable1, name);
                    }
                    else {
                        TableColumnModel colModel = jTable1.getColumnModel();
                        int vColIndex = colModel.getColumnIndexAtX(mouseXLocation);
                        JTableUtilities.insertTableColumnFromModel(jTable1, name, vColIndex);
                    }
                }
            });
            
            popup.add(menuItem);            
        }
        
        return popup;
    }
    
    private int menuStartIndex;
}