lbajardsilogic@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@0: 
lbajardsilogic@0: /*
lbajardsilogic@0:     Sonic Visualiser
lbajardsilogic@0:     An audio file viewer and annotation editor.
lbajardsilogic@0:     Centre for Digital Music, Queen Mary, University of London.
lbajardsilogic@0:     This file copyright 2006 Chris Cannam.
lbajardsilogic@0:     
lbajardsilogic@0:     This program is free software; you can redistribute it and/or
lbajardsilogic@0:     modify it under the terms of the GNU General Public License as
lbajardsilogic@0:     published by the Free Software Foundation; either version 2 of the
lbajardsilogic@0:     License, or (at your option) any later version.  See the file
lbajardsilogic@0:     COPYING included with this distribution for more information.
lbajardsilogic@0: */
lbajardsilogic@0: 
lbajardsilogic@0: #ifndef _UNIT_DATABASE_H_
lbajardsilogic@0: #define _UNIT_DATABASE_H_
lbajardsilogic@0: 
lbajardsilogic@0: #include <QObject>
lbajardsilogic@0: #include <QString>
lbajardsilogic@0: #include <QStringList>
lbajardsilogic@0: #include <map>
lbajardsilogic@0: 
lbajardsilogic@0: // This grandly named class is just a list of the names of known scale
lbajardsilogic@0: // units for the various models, for use as the set of fixed values in
lbajardsilogic@0: // unit dropdown menus etc.  Of course, the user should be allowed to
lbajardsilogic@0: // enter their own as well.
lbajardsilogic@0: 
lbajardsilogic@0: class UnitDatabase : public QObject
lbajardsilogic@0: {
lbajardsilogic@0:     Q_OBJECT
lbajardsilogic@0: 
lbajardsilogic@0: public:
lbajardsilogic@0:     static UnitDatabase *getInstance();
lbajardsilogic@0: 
lbajardsilogic@0:     QStringList getKnownUnits() const;
lbajardsilogic@0:     void registerUnit(QString unit);
lbajardsilogic@0: 
lbajardsilogic@0:     /**
lbajardsilogic@0:      * Return the reference id for a given unit name.  If registerNew is
lbajardsilogic@0:      * true and the unit is not known, register it and return its new
lbajardsilogic@0:      * id.  If register is false and the unit is not known, return -1.
lbajardsilogic@0:      */
lbajardsilogic@0:     int getUnitId(QString unit, bool registerNew = true);
lbajardsilogic@0: 
lbajardsilogic@0:     QString getUnitById(int id);
lbajardsilogic@0: 
lbajardsilogic@0: signals:
lbajardsilogic@0:     void unitDatabaseChanged();
lbajardsilogic@0: 
lbajardsilogic@0: protected:
lbajardsilogic@0:     UnitDatabase();
lbajardsilogic@0: 
lbajardsilogic@0:     typedef std::map<QString, int> UnitMap;
lbajardsilogic@0:     UnitMap m_units;
lbajardsilogic@0:     int m_nextId;
lbajardsilogic@0: 
lbajardsilogic@0:     static UnitDatabase m_instance;
lbajardsilogic@0: };
lbajardsilogic@0: 
lbajardsilogic@0: #endif
lbajardsilogic@0: