/** Create a new SheetMusic control.
* MidiFile is the parsed midi file to display.
* SheetMusic Options are the menu options that were selected.
*
* - Apply all the Menu Options to the MidiFile tracks.
* - Calculate the key signature
* - For each track, create a list of MusicSymbols (notes, rests, bars, etc)
* - Vertically align the music symbols in all the tracks
* - Partition the music notes into horizontal staffs
*/
public void init(MidiFile file, MidiOptions options)
{
if (options == null) {
options = new MidiOptions(file);
}
zoom = 1.0f;
filename = file.FileName;
SetColors(options.colors, options.shadeColor, options.shade2Color);
pen = new Pen(Color.Black, 1);
List<MidiTrack> tracks = file.ChangeMidiNotes(options);
SetNoteSize(options.largeNoteSize);
scrollVert = options.scrollVert;
showNoteLetters= options.showNoteLetters;
TimeSignature time = file.Time;
if (options.time != null) {
time = options.time;
}
if (options.key == -1) {
mainkey = GetKeySignature(tracks);
}
else {
mainkey = new KeySignature(options.key);
}
numtracks = tracks.Count;
int lastStart = file.EndTime() + options.shifttime;
/* Create all the music symbols (notes, rests, vertical bars, and
* clef changes). The symbols variable contains a list of music
* symbols for each track. The list does not include the left-side
* Clef and key signature symbols. Those can only be calculated
* when we create the staffs.
*/
List<MusicSymbol>[] symbols = new List<MusicSymbol> [ numtracks ];
for (int tracknum = 0; tracknum < numtracks; tracknum++) {
MidiTrack track = tracks[tracknum];
ClefMeasures clefs = new ClefMeasures(track.Notes, time.Measure);
List<ChordSymbol> chords = CreateChords(track.Notes, mainkey, time, clefs);
symbols[tracknum] = CreateSymbols(chords, clefs, time, lastStart);
}
List<LyricSymbol>[] lyrics = null;
if (options.showLyrics) {
lyrics = GetLyrics(tracks);
}
/* Vertically align the music symbols */
SymbolWidths widths = new SymbolWidths(symbols, lyrics);
// SymbolWidths widths = new SymbolWidths(symbols);
AlignSymbols(symbols, widths);
staffs = CreateStaffs(symbols, mainkey, options, time.Measure);
CreateAllBeamedChords(symbols, time);
if (lyrics != null) {
AddLyricsToStaffs(staffs, lyrics);
}
/* After making chord pairs, the stem directions can change,
* which affects the staff height. Re-calculate the staff height.
*/
foreach (Staff staff in staffs) {
staff.CalculateHeight();
}
BackColor = Color.White;
SetZoom(1.0f);
}
private NumericUpDown startMeasure; /** The starting measure */
#endregion Fields
#region Constructors
/** Create a new PlayMeasuresDialog. Call the ShowDialog() method
* to display the dialog.
*/
public PlayMeasuresDialog(MidiFile midifile)
{
int lastStart = midifile.EndTime();
int lastMeasure = 1 + lastStart / midifile.Time.Measure;
/* Create the dialog box */
dialog = new Form();
dialog.Text = "Play Selected Measures in a Loop";
dialog.MaximizeBox = false;
dialog.MinimizeBox = false;
dialog.ShowInTaskbar = false;
dialog.Icon = new Icon(GetType(), "NotePair.ico");
dialog.AutoScroll = true;
Font font = dialog.Font;
dialog.Font = new Font(font.FontFamily, font.Size * 1.4f);
int labelheight = dialog.Font.Height * 2;
int xpos = labelheight/2;
int ypos = labelheight/2;
enable = new CheckBox();
enable.Parent = dialog;
enable.Text = "Play Selected Measures in a Loop";
enable.Checked = false;
enable.Location = new Point(xpos, ypos);
enable.Size = new Size(labelheight*9, labelheight);
ypos += labelheight * 3/2;
Label label = new Label();
label.Parent = dialog;
label.Text = "Start Measure";
label.Location = new Point(xpos, ypos);
label.Size = new Size(labelheight * 3, labelheight);
xpos += labelheight * 4;
startMeasure = new NumericUpDown();
startMeasure.Parent = dialog;
startMeasure.Minimum = 1;
startMeasure.Maximum = lastMeasure;
startMeasure.Value = 1;
startMeasure.Location = new Point(xpos, ypos);
startMeasure.Size = new Size(labelheight*2, labelheight);
xpos = labelheight/2;
ypos += labelheight * 3/2;
label = new Label();
label.Parent = dialog;
label.Text = "End Measure";
label.Location = new Point(xpos, ypos);
label.Size = new Size(labelheight * 3, labelheight);
xpos += labelheight * 4;
endMeasure = new NumericUpDown();
endMeasure.Parent = dialog;
endMeasure.Minimum = 1;
endMeasure.Maximum = lastMeasure;
endMeasure.Value = lastMeasure;
endMeasure.Location = new Point(xpos, ypos);
endMeasure.Size = new Size(labelheight*2, labelheight);
/* Create the OK and Cancel buttons */
xpos = labelheight/2;
ypos += labelheight * 3/2;
Button ok = new Button();
ok.Parent = dialog;
ok.Text = "OK";
ok.Location = new Point(xpos, ypos);
ok.DialogResult = DialogResult.OK;
dialog.Size = new Size(labelheight * 10,
labelheight * 8);
}
public bool useDefaultInstruments; /** If true, don't change instruments */
#endregion Fields
#region Constructors
public MidiOptions(MidiFile midifile)
{
int numtracks = midifile.Tracks.Count;
tracks = new bool[numtracks];
mute = new bool[numtracks];
instruments = new int[numtracks];
for (int i = 0; i < tracks.Length; i++) {
tracks[i] = true;
mute[i] = false;
instruments[i] = midifile.Tracks[i].Instrument;
if (midifile.Tracks[i].InstrumentName == "Percussion") {
tracks[i] = false;
}
}
useDefaultInstruments = true;
scrollVert = true;
largeNoteSize = false;
if (tracks.Length == 1) {
twoStaffs = true;
}
else {
twoStaffs = false;
}
showNoteLetters = NoteNameNone;
showLyrics = true;
showMeasures = false;
shifttime = 0;
transpose = 0;
key = -1;
time = midifile.Time;
colors = null;
shadeColor = Color.FromArgb(210, 205, 220);
shade2Color = Color.FromArgb(80, 100, 250);
combineInterval = 40;
tempo = midifile.Time.Tempo;
pauseTime = 0;
playMeasuresInLoop = false;
playMeasuresInLoopStart = 0;
playMeasuresInLoopEnd = midifile.EndTime() / midifile.Time.Measure;
}