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feat(tracker): add numeric updown to choose number of voices for instrument

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vsariola
2021-02-03 14:53:12 +02:00
parent e25015a60b
commit 21b620c824
2 changed files with 36 additions and 0 deletions
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22
tracker/tracker.go
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@ -31,6 +31,7 @@ type Tracker struct {
BPM *NumberInput
RowsPerPattern *NumberInput
RowsPerBeat *NumberInput
InstrumentVoices *NumberInput
NewTrackBtn *widget.Clickable
NewInstrumentBtn *widget.Clickable
DeleteInstrumentBtn *widget.Clickable
@ -166,6 +167,26 @@ func (t *Tracker) ChangeOctave(delta int) bool {
return false
}
func (t *Tracker) SetInstrumentVoices(value int) bool {
if value < 1 {
value = 1
}
maxRemain := 32 - t.song.Patch.TotalVoices() + t.song.Patch.Instruments[t.CurrentInstrument].NumVoices
if maxRemain < 1 {
maxRemain = 1
}
if value > maxRemain {
value = maxRemain
}
if value != int(t.song.Patch.Instruments[t.CurrentInstrument].NumVoices) {
t.SaveUndo()
t.song.Patch.Instruments[t.CurrentInstrument].NumVoices = value
t.sequencer.SetPatch(t.song.Patch)
return true
}
return false
}
func (t *Tracker) SetBPM(value int) bool {
if value < 1 {
value = 1
@ -383,6 +404,7 @@ func New(audioContext sointu.AudioContext) *Tracker {
SongLength: new(NumberInput),
RowsPerPattern: new(NumberInput),
RowsPerBeat: new(NumberInput),
InstrumentVoices: new(NumberInput),
NewTrackBtn: new(widget.Clickable),
NewInstrumentBtn: new(widget.Clickable),
DeleteInstrumentBtn: new(widget.Clickable),