private int width; /** Width of symbol */
#endregion Fields
#region Constructors
/**
* Create a new AccidSymbol with the given accidental, that is
* displayed at the given note in the given clef.
*/
public AccidSymbol(Accid accid, WhiteNote note, Clef clef)
{
this.accid = accid;
this.whitenote = note;
this.clef = clef;
width = MinWidth;
}
private int width_to_pair; /** The width (in pixels) to the chord pair */
#endregion Fields
#region Constructors
/** Create a new stem. The top note, bottom note, and direction are
* needed for drawing the vertical line of the stem. The duration is
* needed to draw the tail of the stem. The overlap boolean is true
* if the notes in the chord overlap. If the notes overlap, the
* stem must be drawn on the right side.
*/
public Stem(WhiteNote bottom, WhiteNote top,
NoteDuration duration, int direction, bool overlap)
{
this.top = top;
this.bottom = bottom;
this.duration = duration;
this.direction = direction;
this.notesoverlap = overlap;
if (direction == Up || notesoverlap)
side = RightSide;
else
side = LeftSide;
end = CalculateEnd();
pair = null;
width_to_pair = 0;
receiver_in_pair = false;
}
/** Get the letter (A, A#, Bb) representing this note */
private string Letter(int notenumber, WhiteNote whitenote)
{
int notescale = NoteScale.FromNumber(notenumber);
switch(notescale) {
case NoteScale.A: return "A";
case NoteScale.B: return "B";
case NoteScale.C: return "C";
case NoteScale.D: return "D";
case NoteScale.E: return "E";
case NoteScale.F: return "F";
case NoteScale.G: return "G";
case NoteScale.Asharp:
if (whitenote.Letter == WhiteNote.A)
return "A#";
else
return "Bb";
case NoteScale.Csharp:
if (whitenote.Letter == WhiteNote.C)
return "C#";
else
return "Db";
case NoteScale.Dsharp:
if (whitenote.Letter == WhiteNote.D)
return "D#";
else
return "Eb";
case NoteScale.Fsharp:
if (whitenote.Letter == WhiteNote.F)
return "F#";
else
return "Gb";
case NoteScale.Gsharp:
if (whitenote.Letter == WhiteNote.G)
return "G#";
else
return "Ab";
default:
return "";
}
}
/** Calculate the stem direction (Up or down) based on the top and
* bottom note in the chord. If the average of the notes is above
* the middle of the staff, the direction is down. Else, the
* direction is up.
*/
private static int StemDirection(WhiteNote bottom, WhiteNote top, Clef clef)
{
WhiteNote middle;
if (clef == Clef.Treble)
middle = new WhiteNote(WhiteNote.B, 5);
else
middle = new WhiteNote(WhiteNote.D, 3);
int dist = middle.Dist(bottom) + middle.Dist(top);
if (dist >= 0)
return Stem.Up;
else
return Stem.Down;
}
/** Draw the black circle notes.
* @param ytop The ylocation (in pixels) where the top of the staff starts.
* @param topstaff The white note of the top of the staff.
*/
public void DrawNotes(Graphics g, Pen pen, int ytop, WhiteNote topstaff)
{
pen.Width = 1;
foreach (NoteData note in notedata) {
/* Get the x,y position to draw the note */
int ynote = ytop + topstaff.Dist(note.whitenote) *
SheetMusic.NoteHeight/2;
int xnote = SheetMusic.LineSpace/4;
if (!note.leftside)
xnote += SheetMusic.NoteWidth;
/* Draw rotated ellipse. You must first translate (0,0)
* to the center of the ellipse.
*/
g.TranslateTransform(xnote + SheetMusic.NoteWidth/2 + 1,
ynote - SheetMusic.LineWidth +
SheetMusic.NoteHeight/2);
g.RotateTransform(-45);
if (sheetmusic != null) {
pen.Color = sheetmusic.NoteColor(note.number);
}
else {
pen.Color = Color.Black;
}
if (note.duration == NoteDuration.Whole ||
note.duration == NoteDuration.Half ||
note.duration == NoteDuration.DottedHalf) {
g.DrawEllipse(pen, -SheetMusic.NoteWidth/2,
-SheetMusic.NoteHeight/2,
SheetMusic.NoteWidth,
SheetMusic.NoteHeight-1);
g.DrawEllipse(pen, -SheetMusic.NoteWidth/2,
-SheetMusic.NoteHeight/2 + 1,
SheetMusic.NoteWidth,
SheetMusic.NoteHeight-2);
g.DrawEllipse(pen, -SheetMusic.NoteWidth/2,
-SheetMusic.NoteHeight/2 + 1,
SheetMusic.NoteWidth,
SheetMusic.NoteHeight-3);
}
else {
Brush brush = Brushes.Black;
if (pen.Color != Color.Black) {
brush = new SolidBrush(pen.Color);
}
g.FillEllipse(brush, -SheetMusic.NoteWidth/2,
-SheetMusic.NoteHeight/2,
SheetMusic.NoteWidth,
SheetMusic.NoteHeight-1);
if (pen.Color != Color.Black) {
brush.Dispose();
}
}
pen.Color = Color.Black;
g.DrawEllipse(pen, -SheetMusic.NoteWidth/2,
-SheetMusic.NoteHeight/2,
SheetMusic.NoteWidth,
SheetMusic.NoteHeight-1);
g.RotateTransform(45);
g.TranslateTransform( - (xnote + SheetMusic.NoteWidth/2 + 1),
- (ynote - SheetMusic.LineWidth +
SheetMusic.NoteHeight/2));
/* Draw a dot if this is a dotted duration. */
if (note.duration == NoteDuration.DottedHalf ||
note.duration == NoteDuration.DottedQuarter ||
note.duration == NoteDuration.DottedEighth) {
g.FillEllipse(Brushes.Black,
xnote + SheetMusic.NoteWidth +
SheetMusic.LineSpace/3,
ynote + SheetMusic.LineSpace/3, 4, 4);
}
/* Draw horizontal lines if note is above/below the staff */
WhiteNote top = topstaff.Add(1);
int dist = note.whitenote.Dist(top);
int y = ytop - SheetMusic.LineWidth;
if (dist >= 2) {
for (int i = 2; i <= dist; i += 2) {
y -= SheetMusic.NoteHeight;
g.DrawLine(pen, xnote - SheetMusic.LineSpace/4, y,
xnote + SheetMusic.NoteWidth +
SheetMusic.LineSpace/4, y);
}
}
WhiteNote bottom = top.Add(-8);
y = ytop + (SheetMusic.LineSpace + SheetMusic.LineWidth) * 4 - 1;
dist = bottom.Dist(note.whitenote);
if (dist >= 2) {
for (int i = 2; i <= dist; i+= 2) {
y += SheetMusic.NoteHeight;
g.DrawLine(pen, xnote - SheetMusic.LineSpace/4, y,
xnote + SheetMusic.NoteWidth +
SheetMusic.LineSpace/4, y);
}
}
/* End drawing horizontal lines */
}
}
/** Draw the note letters (A, A#, Bb, etc) next to the note circles.
* @param ytop The ylocation (in pixels) where the top of the staff starts.
* @param topstaff The white note of the top of the staff.
*/
public void DrawNoteLetters(Graphics g, Pen pen, int ytop, WhiteNote topstaff)
{
bool overlap = NotesOverlap(notedata, 0, notedata.Length);
pen.Width = 1;
foreach (NoteData note in notedata) {
if (!note.leftside) {
/* There's not enought pixel room to show the letter */
continue;
}
/* Get the x,y position to draw the note */
int ynote = ytop + topstaff.Dist(note.whitenote) *
SheetMusic.NoteHeight/2;
/* Draw the letter to the right side of the note */
int xnote = SheetMusic.NoteWidth + SheetMusic.LineSpace/4;
if (note.duration == NoteDuration.DottedHalf ||
note.duration == NoteDuration.DottedQuarter ||
note.duration == NoteDuration.DottedEighth || overlap) {
xnote += SheetMusic.NoteWidth/2;
}
g.DrawString(NoteName(note.number, note.whitenote),
SheetMusic.LetterFont,
Brushes.Black,
xnote,
ynote - SheetMusic.NoteHeight/2);
}
}
/** Get the name for this note */
private string NoteName(int notenumber, WhiteNote whitenote)
{
if (sheetmusic.ShowNoteLetters == MidiOptions.NoteNameLetter) {
return Letter(notenumber, whitenote);
}
else if (sheetmusic.ShowNoteLetters == MidiOptions.NoteNameFixedDoReMi) {
string[] fixedDoReMi = {
"La", "Li", "Ti", "Do", "Di", "Re", "Ri", "Mi", "Fa", "Fi", "So", "Si"
};
int notescale = NoteScale.FromNumber(notenumber);
return fixedDoReMi[notescale];
}
else if (sheetmusic.ShowNoteLetters == MidiOptions.NoteNameMovableDoReMi) {
string[] fixedDoReMi = {
"La", "Li", "Ti", "Do", "Di", "Re", "Ri", "Mi", "Fa", "Fi", "So", "Si"
};
int mainscale = sheetmusic.MainKey.Notescale();
int diff = NoteScale.C - mainscale;
notenumber += diff;
if (notenumber < 0) {
notenumber += 12;
}
int notescale = NoteScale.FromNumber(notenumber);
return fixedDoReMi[notescale];
}
else if (sheetmusic.ShowNoteLetters == MidiOptions.NoteNameFixedNumber) {
string[] num = {
"10", "11", "12", "1", "2", "3", "4", "5", "6", "7", "8", "9"
};
int notescale = NoteScale.FromNumber(notenumber);
return num[notescale];
}
else if (sheetmusic.ShowNoteLetters == MidiOptions.NoteNameMovableNumber) {
string[] num = {
"10", "11", "12", "1", "2", "3", "4", "5", "6", "7", "8", "9"
};
int mainscale = sheetmusic.MainKey.Notescale();
int diff = NoteScale.C - mainscale;
notenumber += diff;
if (notenumber < 0) {
notenumber += 12;
}
int notescale = NoteScale.FromNumber(notenumber);
return num[notescale];
}
else {
return "";
}
}
/** Draw the vertical line of the stem
* @param ytop The y location (in pixels) where the top of the staff starts.
* @param topstaff The note at the top of the staff.
*/
private void DrawVerticalLine(Graphics g, Pen pen, int ytop, WhiteNote topstaff)
{
int xstart;
if (side == LeftSide)
xstart = SheetMusic.LineSpace/4 + 1;
else
xstart = SheetMusic.LineSpace/4 + SheetMusic.NoteWidth;
if (direction == Up) {
int y1 = ytop + topstaff.Dist(bottom) * SheetMusic.NoteHeight/2
+ SheetMusic.NoteHeight/4;
int ystem = ytop + topstaff.Dist(end) * SheetMusic.NoteHeight/2;
g.DrawLine(pen, xstart, y1, xstart, ystem);
}
else if (direction == Down) {
int y1 = ytop + topstaff.Dist(top) * SheetMusic.NoteHeight/2
+ SheetMusic.NoteHeight;
if (side == LeftSide)
y1 = y1 - SheetMusic.NoteHeight/4;
else
y1 = y1 - SheetMusic.NoteHeight/2;
int ystem = ytop + topstaff.Dist(end) * SheetMusic.NoteHeight/2
+ SheetMusic.NoteHeight;
g.DrawLine(pen, xstart, y1, xstart, ystem);
}
}
/* Draw a horizontal beam stem, connecting this stem with the Stem pair.
* @param ytop The y location (in pixels) where the top of the staff starts.
* @param topstaff The note at the top of the staff.
*/
private void DrawHorizBarStem(Graphics g, Pen pen, int ytop, WhiteNote topstaff)
{
pen.Width = SheetMusic.NoteHeight/2;
int xstart = 0;
int xstart2 = 0;
if (side == LeftSide)
xstart = SheetMusic.LineSpace/4 + 1;
else if (side == RightSide)
xstart = SheetMusic.LineSpace/4 + SheetMusic.NoteWidth;
if (pair.side == LeftSide)
xstart2 = SheetMusic.LineSpace/4 + 1;
else if (pair.side == RightSide)
xstart2 = SheetMusic.LineSpace/4 + SheetMusic.NoteWidth;
if (direction == Up) {
int xend = width_to_pair + xstart2;
int ystart = ytop + topstaff.Dist(end) * SheetMusic.NoteHeight/2;
int yend = ytop + topstaff.Dist(pair.end) * SheetMusic.NoteHeight/2;
if (duration == NoteDuration.Eighth ||
duration == NoteDuration.DottedEighth ||
duration == NoteDuration.Triplet ||
duration == NoteDuration.Sixteenth ||
duration == NoteDuration.ThirtySecond) {
g.DrawLine(pen, xstart, ystart, xend, yend);
}
ystart += SheetMusic.NoteHeight;
yend += SheetMusic.NoteHeight;
/* A dotted eighth will connect to a 16th note. */
if (duration == NoteDuration.DottedEighth) {
int x = xend - SheetMusic.NoteHeight;
double slope = (yend - ystart) * 1.0 / (xend - xstart);
int y = (int)(slope * (x - xend) + yend);
g.DrawLine(pen, x, y, xend, yend);
}
if (duration == NoteDuration.Sixteenth ||
duration == NoteDuration.ThirtySecond) {
g.DrawLine(pen, xstart, ystart, xend, yend);
}
ystart += SheetMusic.NoteHeight;
yend += SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
g.DrawLine(pen, xstart, ystart, xend, yend);
}
}
else {
int xend = width_to_pair + xstart2;
int ystart = ytop + topstaff.Dist(end) * SheetMusic.NoteHeight/2 +
SheetMusic.NoteHeight;
int yend = ytop + topstaff.Dist(pair.end) * SheetMusic.NoteHeight/2
+ SheetMusic.NoteHeight;
if (duration == NoteDuration.Eighth ||
duration == NoteDuration.DottedEighth ||
duration == NoteDuration.Triplet ||
duration == NoteDuration.Sixteenth ||
duration == NoteDuration.ThirtySecond) {
g.DrawLine(pen, xstart, ystart, xend, yend);
}
ystart -= SheetMusic.NoteHeight;
yend -= SheetMusic.NoteHeight;
/* A dotted eighth will connect to a 16th note. */
if (duration == NoteDuration.DottedEighth) {
int x = xend - SheetMusic.NoteHeight;
double slope = (yend - ystart) * 1.0 / (xend - xstart);
int y = (int)(slope * (x - xend) + yend);
g.DrawLine(pen, x, y, xend, yend);
}
if (duration == NoteDuration.Sixteenth ||
duration == NoteDuration.ThirtySecond) {
g.DrawLine(pen, xstart, ystart, xend, yend);
}
ystart -= SheetMusic.NoteHeight;
yend -= SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
g.DrawLine(pen, xstart, ystart, xend, yend);
}
}
pen.Width = 1;
}
/** Draw a curvy stem tail. This is only used for single chords, not chord pairs.
* @param ytop The y location (in pixels) where the top of the staff starts.
* @param topstaff The note at the top of the staff.
*/
private void DrawCurvyStem(Graphics g, Pen pen, int ytop, WhiteNote topstaff)
{
pen.Width = 2;
int xstart = 0;
if (side == LeftSide)
xstart = SheetMusic.LineSpace/4 + 1;
else
xstart = SheetMusic.LineSpace/4 + SheetMusic.NoteWidth;
if (direction == Up) {
int ystem = ytop + topstaff.Dist(end) * SheetMusic.NoteHeight/2;
if (duration == NoteDuration.Eighth ||
duration == NoteDuration.DottedEighth ||
duration == NoteDuration.Triplet ||
duration == NoteDuration.Sixteenth ||
duration == NoteDuration.ThirtySecond) {
g.DrawBezier(pen,
xstart, ystem,
xstart,
ystem + 3*SheetMusic.LineSpace/2,
xstart + SheetMusic.LineSpace*2,
ystem + SheetMusic.NoteHeight*2,
xstart + SheetMusic.LineSpace/2,
ystem + SheetMusic.NoteHeight*3);
}
ystem += SheetMusic.NoteHeight;
if (duration == NoteDuration.Sixteenth ||
duration == NoteDuration.ThirtySecond) {
g.DrawBezier(pen,
xstart, ystem,
xstart,
ystem + 3*SheetMusic.LineSpace/2,
xstart + SheetMusic.LineSpace*2,
ystem + SheetMusic.NoteHeight*2,
xstart + SheetMusic.LineSpace/2,
ystem + SheetMusic.NoteHeight*3);
}
ystem += SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
g.DrawBezier(pen,
xstart, ystem,
xstart,
ystem + 3*SheetMusic.LineSpace/2,
xstart + SheetMusic.LineSpace*2,
ystem + SheetMusic.NoteHeight*2,
xstart + SheetMusic.LineSpace/2,
ystem + SheetMusic.NoteHeight*3);
}
}
else if (direction == Down) {
int ystem = ytop + topstaff.Dist(end)*SheetMusic.NoteHeight/2 +
SheetMusic.NoteHeight;
if (duration == NoteDuration.Eighth ||
duration == NoteDuration.DottedEighth ||
duration == NoteDuration.Triplet ||
duration == NoteDuration.Sixteenth ||
duration == NoteDuration.ThirtySecond) {
g.DrawBezier(pen,
xstart, ystem,
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace*2,
ystem - SheetMusic.NoteHeight*2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight*2 -
SheetMusic.LineSpace/2);
}
ystem -= SheetMusic.NoteHeight;
if (duration == NoteDuration.Sixteenth ||
duration == NoteDuration.ThirtySecond) {
g.DrawBezier(pen,
xstart, ystem,
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace*2,
ystem - SheetMusic.NoteHeight*2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight*2 -
SheetMusic.LineSpace/2);
}
ystem -= SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
g.DrawBezier(pen,
xstart, ystem,
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace*2,
ystem - SheetMusic.NoteHeight*2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight*2 -
SheetMusic.LineSpace/2);
}
}
pen.Width = 1;
}
/** Draw this stem.
* @param ytop The y location (in pixels) where the top of the staff starts.
* @param topstaff The note at the top of the staff.
*/
public void Draw(Graphics g, Pen pen, int ytop, WhiteNote topstaff)
{
if (duration == NoteDuration.Whole)
return;
DrawVerticalLine(g, pen, ytop, topstaff);
if (duration == NoteDuration.Quarter ||
duration == NoteDuration.DottedQuarter ||
duration == NoteDuration.Half ||
duration == NoteDuration.DottedHalf ||
receiver_in_pair) {
return;
}
if (pair != null)
DrawHorizBarStem(g, pen, ytop, topstaff);
else
DrawCurvyStem(g, pen, ytop, topstaff);
}
/** Change the direction of the stem. This function is called by
* ChordSymbol.MakePair(). When two chords are joined by a horizontal
* beam, their stems must point in the same direction (up or down).
*/
public void ChangeDirection(int newdirection)
{
direction = newdirection;
if (direction == Up || notesoverlap)
side = RightSide;
else
side = LeftSide;
end = CalculateEnd();
}
/** Create the Accidental symbols for this key, for
* the treble and bass clefs.
*/
private void CreateSymbols()
{
int count = Math.Max(num_sharps, num_flats);
treble = new AccidSymbol[count];
bass = new AccidSymbol[count];
if (count == 0) {
return;
}
WhiteNote[] treblenotes = null;
WhiteNote[] bassnotes = null;
if (num_sharps > 0) {
treblenotes = new WhiteNote[] {
new WhiteNote(WhiteNote.F, 5),
new WhiteNote(WhiteNote.C, 5),
new WhiteNote(WhiteNote.G, 5),
new WhiteNote(WhiteNote.D, 5),
new WhiteNote(WhiteNote.A, 6),
new WhiteNote(WhiteNote.E, 5)
};
bassnotes = new WhiteNote[] {
new WhiteNote(WhiteNote.F, 3),
new WhiteNote(WhiteNote.C, 3),
new WhiteNote(WhiteNote.G, 3),
new WhiteNote(WhiteNote.D, 3),
new WhiteNote(WhiteNote.A, 4),
new WhiteNote(WhiteNote.E, 3)
};
}
else if (num_flats > 0) {
treblenotes = new WhiteNote[] {
new WhiteNote(WhiteNote.B, 5),
new WhiteNote(WhiteNote.E, 5),
new WhiteNote(WhiteNote.A, 5),
new WhiteNote(WhiteNote.D, 5),
new WhiteNote(WhiteNote.G, 4),
new WhiteNote(WhiteNote.C, 5)
};
bassnotes = new WhiteNote[] {
new WhiteNote(WhiteNote.B, 3),
new WhiteNote(WhiteNote.E, 3),
new WhiteNote(WhiteNote.A, 3),
new WhiteNote(WhiteNote.D, 3),
new WhiteNote(WhiteNote.G, 2),
new WhiteNote(WhiteNote.C, 3)
};
}
Accid a = Accid.None;
if (num_sharps > 0)
a = Accid.Sharp;
else
a = Accid.Flat;
for (int i = 0; i < count; i++) {
treble[i] = new AccidSymbol(a, treblenotes[i], Clef.Treble);
bass[i] = new AccidSymbol(a, bassnotes[i], Clef.Bass);
}
}