private int GetAboveStaff()
{
/* Find the topmost note in the chord */
WhiteNote topnote = notedata[notedata.Length - 1].whitenote;
/* The stem.End is the note position where the stem ends.
* Check if the stem end is higher than the top note.
*/
if (stem1 != null)
{
topnote = WhiteNote.Max(topnote, stem1.End);
}
if (stem2 != null)
{
topnote = WhiteNote.Max(topnote, stem2.End);
}
int dist = topnote.Dist(WhiteNote.Top(clef)) * SheetMusic.NoteHeight / 2;
int result = 0;
if (dist > 0)
{
result = dist;
}
/* Check if any accidental symbols extend above the staff */
foreach (AccidSymbol symbol in accidsymbols)
{
if (symbol.AboveStaff > result)
{
result = symbol.AboveStaff;
}
}
return(result);
}
/** 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);
}
}
/** 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 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 */
}
}
LineUpStemEnds(ChordSymbol[] chords)
{
Stem firstStem = chords[0].Stem;
Stem lastStem = chords[chords.Length - 1].Stem;
Stem middleStem = chords[1].Stem;
if (firstStem.Direction == Stem.Up)
{
/* Find the highest stem. The beam will either:
* - Slant downwards (first stem is highest)
* - Slant upwards (last stem is highest)
* - Be straight (middle stem is highest)
*/
WhiteNote top = firstStem.End;
foreach (ChordSymbol chord in chords)
{
top = WhiteNote.Max(top, chord.Stem.End);
}
if (top == firstStem.End && top.Dist(lastStem.End) >= 2)
{
firstStem.End = top;
middleStem.End = top.Add(-1);
lastStem.End = top.Add(-2);
}
else if (top == lastStem.End && top.Dist(firstStem.End) >= 2)
{
firstStem.End = top.Add(-2);
middleStem.End = top.Add(-1);
lastStem.End = top;
}
else
{
firstStem.End = top;
middleStem.End = top;
lastStem.End = top;
}
}
else
{
/* Find the bottommost stem. The beam will either:
* - Slant upwards (first stem is lowest)
* - Slant downwards (last stem is lowest)
* - Be straight (middle stem is highest)
*/
WhiteNote bottom = firstStem.End;
foreach (ChordSymbol chord in chords)
{
bottom = WhiteNote.Min(bottom, chord.Stem.End);
}
if (bottom == firstStem.End && lastStem.End.Dist(bottom) >= 2)
{
middleStem.End = bottom.Add(1);
lastStem.End = bottom.Add(2);
}
else if (bottom == lastStem.End && firstStem.End.Dist(bottom) >= 2)
{
middleStem.End = bottom.Add(1);
firstStem.End = bottom.Add(2);
}
else
{
firstStem.End = bottom;
middleStem.End = bottom;
lastStem.End = bottom;
}
}
/* All middle stems have the same end */
for (int i = 1; i < chords.Length - 1; i++)
{
Stem stem = chords[i].Stem;
stem.End = middleStem.End;
}
}
/* 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;
}