view base/XmlExportable.h @ 76:af2725b5d6fe

* Implement harmonic cursor in spectrogram
* Implement layer export.  This doesn't quite do the right thing for the SV
  XML layer export yet -- it doesn't include layer display information, so
  when imported, it only creates an invisible model.  Could also do with
  fixing CSV file import so as to work correctly for note and text layers.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _XML_EXPORTABLE_H_
#define _XML_EXPORTABLE_H_

#include <QString>
#include <QColor>

class XmlExportable
{
public:
    virtual ~XmlExportable() { }

    virtual QString toXmlString(QString indent = "",
				QString extraAttributes = "") const = 0;

    static QString encodeEntities(QString);

    static QString encodeColour(QColor);

    static int getObjectExportId(const void *); // not thread-safe
};

#endif