/// <summary>
/// Reads the data for the next track from the Midi file.
/// </summary>
/// <param name="trackNum">
/// The track number.
/// </param>
private void ReadNextTrack(int trackNum)
{
MetaType metaType = MetaType.TrackName;
int status = 0;
int runningStatus = 0;
// Read length of track.
binReader.ReadBytes(LengthByteCount);
// Continue reading Midi events until the end of the track.
while(metaType != MetaType.EndOfTrack)
{
// Next Midi message in track.
IMidiMessage msg = null;
// Ticks for next Midi event.
int ticks = ReadVariableLengthQuantity();
// Read status byte for the next Midi message.
status = binReader.ReadByte();
// If this is a status byte.
if((status & StatusFlag) == StatusFlag)
{
// If the next Midi message is a channel message.
if(ChannelMessage.IsChannelMessage(status))
{
// Read channel message from the Midi file.
msg = ReadChannelMessage(status);
// Update running status.
runningStatus = status;
}
// Else if the next Midi message is a meta message.
else if(MetaMessage.IsMetaMessage(status))
{
// Read the type of meta message.
metaType = (MetaType)binReader.ReadByte();
// Read the length of the meta message data.
int length = ReadVariableLengthQuantity();
// Read the meta message data.
byte[] data = binReader.ReadBytes(length);
// Create meta message.
msg = new MetaMessage(metaType, data);
}
// Else if the next Midi message is a system exclusive
// message.
else if(SysExMessage.IsSysExMessage(status))
{
// The type of system exclusive message.
SysExType type = (SysExType)status;
// Read the length of the system exclusive data.
int length = ReadVariableLengthQuantity();
// Read the system exclusive data.
byte[] data = binReader.ReadBytes(length);
// Create system exclusive message.
msg = new SysExMessage(type, data);
}
}
// Assumes running status.
else
{
// Create channel message.
msg = ReadChannelMessage(runningStatus, status);
}
// Create the next Midi event and store it in the specified
// track.
MidiEvent e = new MidiEvent(msg, ticks);
tracks[trackNum].Add(e);
}
}
/// <summary>
/// Inserts a MidiEvent into the Track at the specified index.
/// </summary>
/// <param name="index">
/// The zero-based index at which <i>e</i> should be inserted.
/// </param>
/// <param name="e">
/// The MidiEvent to insert.
/// </param>
/// <exception cref="ArgumentOutOfRangeException">
/// Thrown if index is less than zero or greater than or equal to
/// Count.
/// </exception>
public void Insert(int index, MidiEvent e)
{
// Enforce preconditions.
if(index < 0 || index >= Count)
throw new ArgumentOutOfRangeException("index", index,
"Index into track out of range.");
MidiEvents.Insert(index, e);
// Indicate that the track has changed.
version++;
}
/// <summary>
/// Initializes a new instance of the MidiEventArgs class with the
/// specified Midi event.
/// </summary>
/// <param name="e">
/// The Midi event for this event.
/// </param>
public MidiEventArgs(MidiEvent e)
{
evt = e;
}
/// <summary>
/// Add a Midi event to the end of the track.
/// </summary>
/// <param name="e">
/// The Midi event to add to the track.
/// </param>
public void Add(MidiEvent e)
{
MidiEvents.Add(e);
version++;
}
/// <summary>
/// Removes the first occurrance of a MidiEvent from the Track.
/// </summary>
/// <param name="e">
/// The MidiEvent to remove from the Track.
/// </param>
public void Remove(MidiEvent e)
{
MidiEvents.Remove(e);
// Indicate that the track has changed.
version++;
}
/// <summary>
/// Reads the data for the next track from the Midi file.
/// </summary>
/// <param name="trackNum">
/// The track number.
/// </param>
private void ReadNextTrack(int trackNum)
{
MetaType metaType = MetaType.TrackName;
int status = 0;
int runningStatus = 0;
// Read length of track.
binReader.ReadBytes(LengthByteCount);
// Continue reading Midi events until the end of the track.
while (metaType != MetaType.EndOfTrack)
{
// Next Midi message in track.
IMidiMessage msg = null;
// Ticks for next Midi event.
int ticks = ReadVariableLengthQuantity();
// Read status byte for the next Midi message.
status = binReader.ReadByte();
// If this is a status byte.
if ((status & StatusFlag) == StatusFlag)
{
// If the next Midi message is a channel message.
if (ChannelMessage.IsChannelMessage(status))
{
// Read channel message from the Midi file.
msg = ReadChannelMessage(status);
// Update running status.
runningStatus = status;
}
// Else if the next Midi message is a meta message.
else if (MetaMessage.IsMetaMessage(status))
{
// Read the type of meta message.
metaType = (MetaType)binReader.ReadByte();
// Read the length of the meta message data.
int length = ReadVariableLengthQuantity();
// Read the meta message data.
byte[] data = binReader.ReadBytes(length);
// Create meta message.
msg = new MetaMessage(metaType, data);
}
// Else if the next Midi message is a system exclusive
// message.
else if (SysExMessage.IsSysExMessage(status))
{
// The type of system exclusive message.
SysExType type = (SysExType)status;
// Read the length of the system exclusive data.
int length = ReadVariableLengthQuantity();
// Read the system exclusive data.
byte[] data = binReader.ReadBytes(length);
// Create system exclusive message.
msg = new SysExMessage(type, data);
}
}
// Assumes running status.
else
{
// Create channel message.
msg = ReadChannelMessage(runningStatus, status);
}
// Create the next Midi event and store it in the specified
// track.
MidiEvent e = new MidiEvent(msg, ticks);
tracks[trackNum].Add(e);
}
}
/// <summary>
/// Add a Midi event to the end of the track.
/// </summary>
/// <param name="e">
/// The Midi event to add to the track.
/// </param>
public void Add(MidiEvent e)
{
MidiEvents.Add(e);
version++;
}
/// <summary>
/// Initializes a new instance of the MidiEventArgs class with the
/// specified Midi event.
/// </summary>
/// <param name="e">
/// The Midi event for this event.
/// </param>
public MidiEventArgs(MidiEvent e)
{
evt = e;
}