void LoadMidi(string MidFile, string Track)
{
TempoWorker tempo = new TempoWorker(120, TempoWorker.NoteType.Crotchet);
MidiRResult MidiRecv = MidiWorker.ReadMidi(MidFile, Track);
NoteOnEvent FN = MidiRecv.Notes[0];
long off = FN.AbsoluteTime;
for (int i = 0; i < MidiRecv.Notes.Count; i++)
{
NoteOnEvent NoteEvent = MidiRecv.Notes[i];
PianoNote PNote = new PianoNote(
NoteEvent.AbsoluteTime - off,
NoteEvent.NoteLength,
new BalthasarLib.PianoRollWindow.PitchValuePair((uint)NoteEvent.NoteNumber, 0)
);
PNote.OctaveType = PitchValuePair.OctaveTypeEnum.Piano;
PNote.Lyric = PNote.PitchValue.NoteChar + PNote.PitchValue.Octave.ToString();
NoteList.Add(PNote);
}
int j = 0;
int k = 0;
PitchList.Add(k, new List <PitchNode>());
for (int i = 0; i < MidiRecv.Pitchs.Count; i++)
{
if (j >= MidiRecv.Notes.Count)
{
break;
}
if (MidiRecv.Pitchs[i].PitchWheelChangeEvent.AbsoluteTime - off < NoteList[j].Tick)
{
continue; //在音符前，抛弃
}
if (MidiRecv.Pitchs[i].PitchWheelChangeEvent.AbsoluteTime - off > NoteList[j].Tick + NoteList[j].Length)
{
//在音符后
j++;
k++;
i--;//重来一遍
PitchList.Add(k, new List <PitchNode>());
continue;
}
PitchValuePair pvp = new PitchValuePair((uint)MidiRecv.Notes[j].NoteNumber, MidiRecv.Pitchs[i].PIT, (uint)MidiRecv.Pitchs[i].PBS);
PitchNode PitN = new PitchNode(MidiRecv.Pitchs[i].PitchWheelChangeEvent.AbsoluteTime - off, pvp.PitchValue);
PitchList[k].Add(PitN);
}
}
public void DrawPitchLine(List <PitchNode> SortedPitchPointSilk, Color LineColor, float LineWidth, System.Drawing.Drawing2D.DashStyle LineStyle)
{
//计算X相位边界
long MinTick = pprops.PianoStartTick;
long MaxTick = pprops.PianoStartTick + (long)Math.Round(pprops.dertPixel2dertTick(baseEvent.ClipRectangle.Width), 0) + 1;
//计算Y相位边界
double MaxNoteCount = (double)baseEvent.ClipRectangle.Height / rconf.Const_RollNoteHeight;
if (MaxNoteCount > (int)MaxNoteCount)
{
MaxNoteCount = (int)MaxNoteCount + 1;
}
uint MaxNote = pprops.PianoTopNote;
uint MinNote = MaxNote - (uint)MaxNoteCount;
List <Point> PixelSilkLine = new List <Point>();
bool First = true;
for (int i = 1; i < SortedPitchPointSilk.Count; i++)
{
if (SortedPitchPointSilk[i].Tick > MinTick && SortedPitchPointSilk[i - 1].Tick < MaxTick)
{
PitchNode pn = SortedPitchPointSilk[i];
PitchNode pn2 = SortedPitchPointSilk[i - 1];
if (First)
{
Point StartP = PitchNode2Point(pn2, MinTick, MaxTick, MinNote, MaxNote);
PixelSilkLine.Add(StartP);
First = false;
}
Point EndP = PitchNode2Point(pn, MinTick, MaxTick, MinNote, MaxNote);
PixelSilkLine.Add(EndP);
}
}
D2DGraphics g = baseEvent.D2DGraphics;
if (PixelSilkLine.Count > 1)
{
g.DrawPathGeometrySink(PixelSilkLine, LineColor, LineWidth, LineStyle, false);
}
}
private Point PitchNode2Point(PitchNode Node, long MinTick, long MaxTick, uint MinNote, uint MaxNote)
{
long ETick = Node.Tick - MinTick;//获得左边界距离启绘点距离；
int NodeXPixel = baseEvent.ClipRectangle.X;
if (ETick < 0)
{
//起绘制点小于0;
NodeXPixel = baseEvent.ClipRectangle.X - (int)Math.Round(pprops.dertTick2dertPixel(-ETick), 0);
}
else
{
NodeXPixel = baseEvent.ClipRectangle.X + (int)Math.Round(pprops.dertTick2dertPixel(ETick), 0);
}
uint NoteDistance = MaxNote - Node.PitchValue.NoteNumber;
double PitchDistance = (double)Node.PitchValue.PitchValue - Node.PitchValue.NoteNumber - 0.5;
int NodeYPixel = baseEvent.ClipRectangle.Top + (int)(((double)NoteDistance + PitchDistance + 1) * rconf.Const_RollNoteHeight);
return(new Point(NodeXPixel, NodeYPixel));
}
