/*
 * Copyright (C) 2006-2007  Gabriel Burca (gburca dash virtmus at ebixio dot com)
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package com.ebixio.virtmus.options;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import javax.swing.JComponent;
import org.netbeans.spi.options.OptionsPanelController;
import org.openide.util.HelpCtx;
import org.openide.util.Lookup;

final class VirtmusOptionsPanelController extends OptionsPanelController {
    
    private VirtmusPanel panel;
    private final PropertyChangeSupport pcs = new PropertyChangeSupport(this);
    private boolean changed;
    
    @Override
    public void update() {
        getPanel().load();
        changed = false;
    }
    
    @Override
    public void applyChanges() {
        getPanel().store();
        changed = false;
    }
    
    @Override
    public void cancel() {
        // need not do anything special, if no changes have been persisted yet
    }
    
    @Override
    public boolean isValid() {
        return getPanel().valid();
    }
    
    @Override
    public boolean isChanged() {
        return changed;
    }
    
    @Override
    public HelpCtx getHelpCtx() {
        return null; // new HelpCtx("...ID") if you have a help set
    }
    
    @Override
    public JComponent getComponent(Lookup masterLookup) {
        return getPanel();
    }
    
    @Override
    public void addPropertyChangeListener(PropertyChangeListener l) {
        pcs.addPropertyChangeListener(l);
    }
    
    @Override
    public void removePropertyChangeListener(PropertyChangeListener l) {
        pcs.removePropertyChangeListener(l);
    }
    
    private VirtmusPanel getPanel() {
        if (panel == null) {
            panel = new VirtmusPanel(this);
        }
        return panel;
    }
    
    void changed() {
        if (!changed) {
            changed = true;
            pcs.firePropertyChange(OptionsPanelController.PROP_CHANGED, false, true);
        }
        pcs.firePropertyChange(OptionsPanelController.PROP_VALID, null, null);
    }
    
}