svcore  1.9
XmlExportable.h
Go to the documentation of this file.
00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
00002 
00003 /*
00004     Sonic Visualiser
00005     An audio file viewer and annotation editor.
00006     Centre for Digital Music, Queen Mary, University of London.
00007     This file copyright 2006 Chris Cannam.
00008     
00009     This program is free software; you can redistribute it and/or
00010     modify it under the terms of the GNU General Public License as
00011     published by the Free Software Foundation; either version 2 of the
00012     License, or (at your option) any later version.  See the file
00013     COPYING included with this distribution for more information.
00014 */
00015 
00016 #ifndef _XML_EXPORTABLE_H_
00017 #define _XML_EXPORTABLE_H_
00018 
00019 #include <QString>
00020 
00021 #include "Debug.h"
00022 
00023 class QTextStream;
00024 
00025 class XmlExportable
00026 {
00027 public:
00028     virtual ~XmlExportable() { }
00029 
00033     virtual void toXml(QTextStream &stream,
00034                        QString indent = "",
00035                        QString extraAttributes = "") const = 0;
00036 
00042     virtual QString toXmlString(QString indent = "",
00043                                 QString extraAttributes = "") const;
00044 
00045     static QString encodeEntities(QString);
00046 
00047     static QString encodeColour(int r, int g, int b); 
00048 
00049     static int getObjectExportId(const void *); // thread-safe
00050 };
00051 
00052 #endif