@Override
public String toString() {
return String.format(
"Stem duration=%1$s direction=%2$s top=%3$s bottom=%4$s end=%5$s"
+ " overlap=%6$s side=%7$s width_to_pair=%8$s receiver_in_pair=%9$s",
duration,
direction,
top.toString(),
bottom.toString(),
end.toString(),
notesoverlap,
side,
width_to_pair,
receiver_in_pair);
}
/**
* 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(Canvas canvas, Paint paint, 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;
canvas.drawLine(xstart, y1, xstart, ystem, paint);
} 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;
canvas.drawLine(xstart, y1, xstart, ystem, paint);
}
}
/** 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 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(Canvas canvas, Paint paint, int ytop, WhiteNote topstaff) {
paint.setStrokeWidth(SheetMusic.NoteHeight / 2);
paint.setStrokeCap(Paint.Cap.BUTT);
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) {
canvas.drawLine(xstart, ystart, xend, yend, paint);
}
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);
canvas.drawLine(x, y, xend, yend, paint);
}
if (duration == NoteDuration.Sixteenth || duration == NoteDuration.ThirtySecond) {
canvas.drawLine(xstart, ystart, xend, yend, paint);
}
ystart += SheetMusic.NoteHeight;
yend += SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
canvas.drawLine(xstart, ystart, xend, yend, paint);
}
} 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) {
canvas.drawLine(xstart, ystart, xend, yend, paint);
}
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);
canvas.drawLine(x, y, xend, yend, paint);
}
if (duration == NoteDuration.Sixteenth || duration == NoteDuration.ThirtySecond) {
canvas.drawLine(xstart, ystart, xend, yend, paint);
}
ystart -= SheetMusic.NoteHeight;
yend -= SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
canvas.drawLine(xstart, ystart, xend, yend, paint);
}
}
paint.setStrokeWidth(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(Canvas canvas, Paint paint, int ytop, WhiteNote topstaff) {
Path bezierPath;
paint.setStrokeWidth(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) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem + 3 * SheetMusic.LineSpace / 2,
xstart + SheetMusic.LineSpace * 2,
ystem + SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace / 2,
ystem + SheetMusic.NoteHeight * 3);
canvas.drawPath(bezierPath, paint);
}
ystem += SheetMusic.NoteHeight;
if (duration == NoteDuration.Sixteenth || duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem + 3 * SheetMusic.LineSpace / 2,
xstart + SheetMusic.LineSpace * 2,
ystem + SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace / 2,
ystem + SheetMusic.NoteHeight * 3);
canvas.drawPath(bezierPath, paint);
}
ystem += SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem + 3 * SheetMusic.LineSpace / 2,
xstart + SheetMusic.LineSpace * 2,
ystem + SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace / 2,
ystem + SheetMusic.NoteHeight * 3);
canvas.drawPath(bezierPath, paint);
}
} 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) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace * 2,
ystem - SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight * 2 - SheetMusic.LineSpace / 2);
canvas.drawPath(bezierPath, paint);
}
ystem -= SheetMusic.NoteHeight;
if (duration == NoteDuration.Sixteenth || duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace * 2,
ystem - SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight * 2 - SheetMusic.LineSpace / 2);
canvas.drawPath(bezierPath, paint);
}
ystem -= SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace * 2,
ystem - SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight * 2 - SheetMusic.LineSpace / 2);
canvas.drawPath(bezierPath, paint);
}
}
paint.setStrokeWidth(1);
}