comparison base/UnitDatabase.cpp @ 116:a08718723b20

* Add units repository, and unit property on time-value and note 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.
+*/
+
+#include "UnitDatabase.h"
+
+UnitDatabase
+UnitDatabase::m_instance;
+
+UnitDatabase *
+UnitDatabase::getInstance()
+{
+    return &m_instance;
+}
+
+UnitDatabase::UnitDatabase() :
+    m_nextId(0)
+{
+}
+
+QStringList
+UnitDatabase::getKnownUnits() const
+{
+    QStringList list;
+    for (UnitMap::const_iterator i = m_units.begin(); i != m_units.end(); ++i) {
+        list.push_back(i->first);
+    }
+    return list;
+}
+
+void
+UnitDatabase::registerUnit(QString unit)
+{
+    if (m_units.find(unit) == m_units.end()) {
+        m_units[unit] = m_nextId++;
+    }
+    emit unitDatabaseChanged();
+}
+
+int
+UnitDatabase::getUnitId(QString unit)
+{
+    if (m_units.find(unit) == m_units.end()) {
+        registerUnit(unit);
+    }
+    return m_units[unit];
+}
+
+QString
+UnitDatabase::getUnitById(int id)
+{
+    for (UnitMap::const_iterator i = m_units.begin(); i != m_units.end(); ++i) {
+        if (i->second == id) return i->first;
+    }
+    return "";
+}
+