771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
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an = abc2svg.b40a(b40) // new accidental
if (sk.k_none) { // if atonal music
b40 %= 40
if (an == -2 || an == 2 // __ or ^^
|| b40 == 1 || b40 == 38 || b40 == 18 || b40 == 15) {
// _C, ^B, _F, ^E
if (an < 0)
note.pit--
else
note.pit++
if (!an)
an = 3
} else if (sk.k_none) { // if no key
if (acc_same_pitch(s, note.midi)) // and accidental from previous notes
return // no change
} else if (sk.k_a_acc) { // if accidental list
if (acc_same_pitch(s, note.midi)) // and accidental from previous notes
return // no change
ak = sk.k_map[(note.pit + 19) % 7]
if (ak)
an = 3 // natural
} else {
return // same accidental (in the key)
}
if (d && an != a) {
|
<
|
<
<
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>
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>
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>
>
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>
>
>
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>
|
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771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
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an = abc2svg.b40a(b40) // new accidental
if (sk.k_none) { // if atonal music
b40 %= 40
if (an == -2 || an == 2 // __ or ^^
|| b40 == 1 || b40 == 38 || b40 == 18 || b40 == 15) {
// _C, ^B, _F, ^E
note.pit += (an > 0) ? 1 : -1
an = 0
}
}
if (a) {
if (sk.k_a_acc) { // if accidental list
ak = sk.k_map[(note.pit + 19) % 7]
if (ak == an)
an = 0 // accidental in the key
}
if (!an) {
n = same_pit(s, note)
an = (n && n.acc) ? 3 : 0
}
} else if (sk.k_none) { // if no key
n = same_pit(s, note)
if (n) {
if (n.acc == an)
return
if (!an)
an = 3
}
} else if (sk.k_a_acc) { // if accidental list
n = same_pit(s, note)
if (n && n.acc == an)
return
ak = sk.k_map[(note.pit + 19) % 7]
if (ak)
an = 3 // natural
} else {
return // same accidental (in the key)
}
if (d && an != a) {
|
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
|
var sf = abc2svg.b40sf[n_b40]
sk.k_sf = sf
sk.k_map = abc2svg.keys[sf + 7] // map of the notes with accidentals
}
/*
* for transpose purpose, check if a pitch is already in the measure or
* if it is tied from a previous note
*/
function acc_same_pitch(s, midi) {
var i, a,
time = s.time
for (s = s.prev; s; s = s.prev) {
switch (s.type) {
case C.BAR:
if (s.time < time)
return //undefined // not the same pitch
while (1) {
s = s.prev
if (!s)
return //undefined
if (s.type == C.NOTE) {
if (s.time + s.dur == time)
break
return //undefined
}
if (s.time < time)
return //undefined
}
for (i = 0; i <= s.nhd; i++) {
if (s.notes[i].midi == midi)
return 1 //true
}
return //undefined
case C.NOTE:
for (i = 0; i <= s.nhd; i++) {
if (s.notes[i].midi == midi)
return 1 //true
}
break
}
}
return //undefined
}
|
|
|
|
|
>
>
|
|
>
|
|
|
|
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
|
var sf = abc2svg.b40sf[n_b40]
sk.k_sf = sf
sk.k_map = abc2svg.keys[sf + 7] // map of the notes with accidentals
}
/*
* for transpose purpose, search a note that has the same pitch
* as a note in the measure or tied from a previous note
*/
function same_pit(s, note) {
var i,
pit = note.pit,
time = s.time
//fixme: other voice?
for (s = s.prev; s; s = s.prev) {
switch (s.type) {
case C.BAR:
if (s.time < time)
return //undefined
while (1) {
s = s.prev
if (!s)
return //undefined
if (s.type == C.NOTE) {
if (s.time + s.dur == time)
break
return //undefined
}
if (s.time < time)
return //undefined
}
for (i = 0; i <= s.nhd; i++) {
if (s.notes[i].pit == pit
&& s.notes[i].tie_ty)
return s.notes[i]
}
return //undefined
case C.NOTE:
for (i = 0; i <= s.nhd; i++) {
if (s.notes[i].pit == pit)
return s.notes[i]
}
break
}
}
return //undefined
}
|