/** Calculate the vertical position (white note key) where
* the stem ends
*/
public WhiteNote CalculateEnd()
{
if (direction == Up)
{
WhiteNote w = top;
w = w.Add(6);
if (duration == NoteDuration.Sixteenth)
{
w = w.Add(2);
}
else if (duration == NoteDuration.ThirtySecond)
{
w = w.Add(4);
}
return(w);
}
else if (direction == Down)
{
WhiteNote w = bottom;
w = w.Add(-6);
if (duration == NoteDuration.Sixteenth)
{
w = w.Add(-2);
}
else if (duration == NoteDuration.ThirtySecond)
{
w = w.Add(-4);
}
return(w);
}
else
{
return(null); /* Shouldn't happen */
}
}
/** 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;
}
}
