/// <summary>
/// Sends song position pointer to its slaves.
/// </summary>
/// <param name="spp">
/// The sont position pointer.
/// </param>
/// <remarks>
/// If the master mode is not enabled, this method has no effect.
/// </remarks>
public void SendSongPositionPointer(SongPositionPointer spp)
{
// Guard.
if (!MasterEnabled)
{
return;
}
// Keep track of whether or not the clock is running.
bool wasRunning = IsRunning();
// If the clock is running, stop it momentarily. It is better not
// to change the position while a sequencer is running.
if (wasRunning)
{
Stop();
}
// Send song position pointer.
midiSender.Send(spp.ToMessage());
// If the clock was running, resume running.
if (wasRunning)
{
Continue();
}
}
/// <summary>
/// Handles system common received events.
/// </summary>
/// <param name="sender">
/// The MIDI receiver responsible for the event.
/// </param>
/// <param name="e">
/// Information about the event.
/// </param>
private void SysCommonReceivedHandler(object sender, SysCommonEventArgs e)
{
// Guard.
if (!SlaveEnabled)
{
return;
}
// If the position has changed.
if (e.Message.Type == SysCommonType.SongPositionPointer &&
PositionChanged != null)
{
SongPositionPointer spp =
new SongPositionPointer(tickGenerator.Ppqn, e.Message);
bool wasRunning = IsRunning();
// If the tick Generator is running, stop it momentarily to
// give listeners a chance to update their position when the
// PositionChanged event is raised.
//
// Ideally, any master device sending a song position pointer
// messages would send a stop message first so that the slave
// is not running when the position is changed.
if (wasRunning)
{
tickGenerator.Stop();
}
PositionChanged(this,
new PositionChangedEventArgs(spp.PositionInTicks));
if (MasterEnabled)
{
midiSender.Send(e.Message);
}
// Restart tick generator if it was previously running.
if (wasRunning)
{
tickGenerator.Start();
}
}
}
/// <summary>
/// Sends song position pointer to its slaves.
/// </summary>
/// <param name="spp">
/// The sont position pointer.
/// </param>
/// <remarks>
/// If the master mode is not enabled, this method has no effect.
/// </remarks>
public void SendSongPositionPointer(SongPositionPointer spp)
{
// Guard.
if(!MasterEnabled)
return;
// Keep track of whether or not the clock is running.
bool wasRunning = IsRunning();
// If the clock is running, stop it momentarily. It is better not
// to change the position while a sequencer is running.
if(wasRunning)
Stop();
// Send song position pointer.
midiSender.Send(spp.ToMessage());
// If the clock was running, resume running.
if(wasRunning)
Continue();
}
/// <summary>
/// Handles system common received events.
/// </summary>
/// <param name="sender">
/// The MIDI receiver responsible for the event.
/// </param>
/// <param name="e">
/// Information about the event.
/// </param>
private void SysCommonReceivedHandler(object sender, SysCommonEventArgs e)
{
// Guard.
if(!SlaveEnabled)
return;
// If the position has changed.
if(e.Message.Type == SysCommonType.SongPositionPointer &&
PositionChanged != null)
{
SongPositionPointer spp =
new SongPositionPointer(tickGenerator.Ppqn, e.Message);
bool wasRunning = IsRunning();
// If the tick Generator is running, stop it momentarily to
// give listeners a chance to update their position when the
// PositionChanged event is raised.
//
// Ideally, any master device sending a song position pointer
// messages would send a stop message first so that the slave
// is not running when the position is changed.
if(wasRunning)
tickGenerator.Stop();
PositionChanged(this,
new PositionChangedEventArgs(spp.PositionInTicks));
if(MasterEnabled)
midiSender.Send(e.Message);
// Restart tick generator if it was previously running.
if(wasRunning)
tickGenerator.Start();
}
}
