private List<List<VoiceDef>> GetBars(Trk track, List<int> nChordsPerSystem)
{
List<Trk> consecutiveBars = new List<Trk>();
// barlineMsPositions will contain both msPos=0 and the position of the final barline
List<int> barlineMsPositions = new List<int>() { 0 };
int trackIndex = 0;
int msPositionReContainer = 0;
foreach(int nChords in nChordsPerSystem)
{
Trk trk = new Trk(0, msPositionReContainer, new List<IUniqueDef>());
for(int i = 0; i < nChords; ++i)
{
trk.Add(track[trackIndex++]);
}
msPositionReContainer = trk.EndMsPositionReFirstIUD;
barlineMsPositions.Add(msPositionReContainer);
consecutiveBars.Add(trk);
}
List<List<VoiceDef>> bars = new List<List<VoiceDef>>();
foreach(Trk trk in consecutiveBars)
{
List<VoiceDef> bar = new List<VoiceDef>() { trk };
bars.Add(bar);
}
return bars;
}
/// <summary>
/// A Block contains a list of VoiceDefs consisting of a group of Trks followed by InputVoiceDefs.
/// This constructor creates a MainBlock consisting of the concatenation of the Blocks in the argument blockList.
/// The initialClefs are set to the clefs in initialClefsPerChannel.
/// initialClefsPerChannel contains the clefs for the Trks followed by the clefs for the clefs for the InputVoiceDefs.
/// Note that initialClefsPerChannel contains a clef for each channel, regardless of whether it is going to be printed or not.
/// The channels for both Trks and InputVoiceDefs are in ascending order. Their order from top to bottom in the score is determined later.
/// </summary>
/// <param name="initialClefPerChannel">The clefs to set at the start of each Trk followed by the clefs for each InputVoiceDef</param>
/// <param name="blockList">A list of Blocks that will be concatenated to become this MainBlock.</param>
public MainBlock(List<string> initialClefPerChannel, List<Block> blockList)
: base()
{
Debug.Assert(blockList != null && blockList.Count > 0);
Block block1 = blockList[0];
int nTrks = block1.Trks.Count;
int nInputVoiceDefs = block1.InputVoiceDefs.Count;
#region conditions
Debug.Assert(initialClefPerChannel.Count == (nTrks + nInputVoiceDefs));
foreach(Block block in blockList)
{
Debug.Assert(block.Trks.Count == nTrks);
Debug.Assert(block.InputVoiceDefs.Count == nInputVoiceDefs);
for(int trkIndex = 0; trkIndex < nTrks; ++trkIndex)
{
// Achtung: Trk midiChannels are those defined in the algorithm's MidiChannelIndexPerOutputVoice.
// The output channels must be in ascending oder, **_but_do_not_need_to_be_contiguous_**.
// See comment at CompositionAlgorithm.MidiChannelIndexPerOutputVoice.
Debug.Assert(block.Trks[trkIndex].MidiChannel == block1.Trks[trkIndex].MidiChannel);
}
for(int ivdIndex = 0; ivdIndex < nInputVoiceDefs; ++ivdIndex)
{
// Input channels are in ascending order, starting at 0, and are contiguous.
Debug.Assert(block.Trks[ivdIndex].MidiChannel == ivdIndex);
}
}
#endregion conditions
for(int i = 0; i < nTrks; ++i)
{
int channel = block1.Trks[i].MidiChannel;
VoiceDef trk = new Trk(channel);
trk.Add(new ClefChangeDef(initialClefPerChannel[channel], 0));
_voiceDefs.Add(trk);
}
int inputVoiceIndex = Trks.Count;
for(int i = 0; i < nInputVoiceDefs; ++i)
{
VoiceDef inputVoiceDef = new InputVoiceDef(i);
inputVoiceDef.Add(new ClefChangeDef(initialClefPerChannel[inputVoiceIndex++], 0));
_voiceDefs.Add(inputVoiceDef);
}
foreach(Block block in blockList)
{
this.Concat(block);
}
}
/// <summary>
/// Makes both tracks the same length by adding rests at the beginnings and ends.
/// The Alignment is found using this.MsPositionReContainer and trk2.MsPositionReContainer
/// </summary>
private void AlignAndJustifyWith(Trk trk2)
{
this.Trim();
if(this.MsPositionReContainer > 0)
{
this.Insert(0, new RestDef(0, this.MsPositionReContainer));
this.MsPositionReContainer = 0;
}
trk2.Trim();
if(trk2.MsPositionReContainer > 0)
{
trk2.Insert(0, new RestDef(0, trk2.MsPositionReContainer));
trk2.MsPositionReContainer = 0;
}
int lengthDiff = trk2.MsDuration - this.MsDuration;
if(lengthDiff > 0)
{
this.Add(new RestDef(0, lengthDiff));
}
else if(lengthDiff < 0)
{
trk2.Add(new RestDef(0, -lengthDiff));
}
}