/*
This file is part of RouteConverter.
RouteConverter 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.
RouteConverter 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 RouteConverter; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Copyright (C) 2007 Christian Pesch. All Rights Reserved.
*/
package slash.navigation.converter.gui.models;
import slash.navigation.converter.gui.helpers.AbstractListDataListener;
import javax.swing.event.ListDataEvent;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;
import java.util.logging.Logger;
/**
* An unidirectional adapter that extracts information from a {@link FormatAndRoutesModel} for display.
*
* @author Christian Pesch
*/
public abstract class FormatAndRoutesListModelToDocumentAdapter extends PlainDocument {
private static final Logger log = Logger.getLogger(FormatAndRoutesListModelToDocumentAdapter.class.getName());
private FormatAndRoutesModel delegate;
FormatAndRoutesListModelToDocumentAdapter(FormatAndRoutesModel delegate) {
setDelegate(delegate);
}
FormatAndRoutesModel getDelegate() {
return delegate;
}
private void setDelegate(FormatAndRoutesModel formatAndRoutesModel) {
this.delegate = formatAndRoutesModel;
formatAndRoutesModel.addListDataListener(new AbstractListDataListener() {
public void process(ListDataEvent e) {
updateAdapterFromDelegate();
}
});
}
protected abstract String getDelegateValue();
protected void updateAdapterFromDelegate() {
try {
String myContent = getText(0, getLength());
String delegateContent = getDelegateValue();
if (myContent.equals(delegateContent))
return;
remove(0, getLength());
insertString(0, delegateContent, null);
}
catch (BadLocationException e) {
log.severe("Error updating adapter: " + e);
}
}
}