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/*************************************************************************
RecordController.h - controller/state matching for the audio recorder
-------------------
begin : Sat Oct 04 2003
copyright : (C) 2003 by Thomas Eschenbacher
email : Thomas.Eschenbacher@gmx.de
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef RECORD_CONTROLLER_H
#define RECORD_CONTROLLER_H
#include "config.h"
#include <QObject>
#include "RecordState.h"
namespace Kwave
{
class RecordController: public QObject
{
Q_OBJECT
public:
/** Constructor */
RecordController();
/** Destructor */
~RecordController() override;
/** returns the name of a state */
const char *stateName(const Kwave::RecordState state);
public slots:
/**
* Informs the controller whether the recording engine has been
* successfully been initialized or recording cannot be started.
* @param initialized if true, recording can be started
*/
void setInitialized(bool initialized);
/**
*Informs the controller whether the signal is empty or not
* @param empty if true, nothing has been recorded
*/
void setEmpty(bool empty);
/**
* Enable the prerecording. Has to be called before any status
* change to enable/disable the prerecording mode
*
* @param enable if true, enable prerecording
*/
void enablePrerecording(bool enable);
/** Clear all recorded data and prepare for new recording */
void actionReset();
/** Stop the recording */
void actionStop();
/** Pause the recording */
void actionPause();
/** Start the recording */
void actionStart();
/** The device has started recording */
void deviceRecordStarted();
/** The device buffer contains data */
void deviceBufferFull();
/** The record trigger has been reached */
void deviceTriggerReached();
/** The device has stopped recording */
void deviceRecordStopped(int);
/** The recording trigger has been enabled/disabled */
void enableTrigger(bool enable);
signals:
/** emitted when the state of the recording changed */
void stateChanged(Kwave::RecordState state);
/** All recorded data has to be cleared */
void sigReset(bool &accepted);
/** Recording should start */
void sigStartRecord();
/** Recording should stop */
void sigStopRecord(int errorcode);
private:
/** current state of the recording engine */
Kwave::RecordState m_state;
/**
* state of the recording engine after finishing the last action, not
* needed for all state changes.
*/
Kwave::RecordState m_next_state;
/** use a trigger */
bool m_trigger_set;
/** use prerecording */
bool m_enable_prerecording;
/** if true the current file is empty */
bool m_empty;
};
}
#endif /* RECORD_CONTROLLER_H */
//***************************************************************************
//***************************************************************************
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