Reset Playhead on the first beat of the first bar of a loop

src/looperclip.cxx

@@ -60,6 +60,7 @@ void LooperClip::init()
 	_playhead   = 0;
 	_recordhead = 0;
 
+	_barsPlayed = 0;
 
 }
 
@@ -279,6 +280,15 @@ void LooperClip::bar()
 		_buffer->setAudioFrames( jack->getTimeManager()->getFpb() * _buffer->getBeats() );
 	}
 
+	if ( _playing ) {
+		_barsPlayed++;
+	}
+
+	if ( _playing && _barsPlayed >= getBeats() / 4) {
+		_barsPlayed = 0;
+		_playhead = 0;
+	}
+
 	if ( _playhead >= _recordhead ) {
 		_playhead = 0.f;
 	}

src/looperclip.hxx

@@ -140,6 +140,8 @@ private:
 
 	float _playhead;
 	float _recordhead;
+
+	unsigned int _barsPlayed;
 	AudioBuffer* _buffer;
 };