LMMS/include/TempoSyncKnobModel.h

/*
 * TempoSyncKnobModel.h - adds bpm to ms conversion for knob class
 *
 * Copyright (c) 2005-2008 Danny McRae <khjklujn/at/yahoo.com>
 * Copyright (c) 2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
 *
 * This file is part of LMMS - https://lmms.io
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program (see COPYING); if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 *
 */

#ifndef TEMPO_SYNC_KNOB_MODEL_H
#define TEMPO_SYNC_KNOB_MODEL_H

#include "MeterModel.h"

class QAction;

class EXPORT TempoSyncKnobModel : public FloatModel
{
	Q_OBJECT
public:
	enum TempoSyncMode
	{
		SyncNone,
		SyncDoubleWholeNote,
		SyncWholeNote,
		SyncHalfNote,
		SyncQuarterNote,
		SyncEighthNote,
		SyncSixteenthNote,
		SyncThirtysecondNote,
		SyncCustom
	} ;

	TempoSyncKnobModel( const float _val, const float _min,
				const float _max, const float _step,
				const float _scale, Model * _parent,
				const QString & _display_name = QString() );
	virtual ~TempoSyncKnobModel();

	void saveSettings( QDomDocument & _doc, QDomElement & _this, const QString& name );
	void loadSettings( const QDomElement & _this, const QString& name );

	TempoSyncMode syncMode() const
	{
		return m_tempoSyncMode;
	}

	void setSyncMode( TempoSyncMode _new_mode );

	float scale() const
	{
		return m_scale;
	}

	void setScale( float _new_scale );

signals:
	void syncModeChanged( TempoSyncMode _new_mode );
	void scaleChanged( float _new_scale );


public slots:
	inline void disableSync()
	{
		setTempoSync( SyncNone );
	}
	void setTempoSync( int _note_type );
	void setTempoSync( QAction * _item );


protected slots:
	void calculateTempoSyncTime( bpm_t _bpm );
	void updateCustom();


private:
	TempoSyncMode m_tempoSyncMode;
	TempoSyncMode m_tempoLastSyncMode;
	float m_scale;

	MeterModel m_custom;


	friend class TempoSyncKnob;

} ;

#endif