svcore
1.9
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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 _UNIT_DATABASE_H_ 00017 #define _UNIT_DATABASE_H_ 00018 00019 #include <QObject> 00020 #include <QString> 00021 #include <QStringList> 00022 #include <map> 00023 00024 // This grandly named class is just a list of the names of known scale 00025 // units for the various models, for use as the set of fixed values in 00026 // unit dropdown menus etc. Of course, the user should be allowed to 00027 // enter their own as well. 00028 00029 class UnitDatabase : public QObject 00030 { 00031 Q_OBJECT 00032 00033 public: 00034 static UnitDatabase *getInstance(); 00035 00036 QStringList getKnownUnits() const; 00037 void registerUnit(QString unit); 00038 00044 int getUnitId(QString unit, bool registerNew = true); 00045 00046 QString getUnitById(int id); 00047 00048 signals: 00049 void unitDatabaseChanged(); 00050 00051 protected: 00052 UnitDatabase(); 00053 00054 typedef std::map<QString, int> UnitMap; 00055 UnitMap m_units; 00056 int m_nextId; 00057 00058 static UnitDatabase m_instance; 00059 }; 00060 00061 #endif 00062