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feat(tracker): implement a numeric up down widget and use that for the numbers

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vsariola
2021-01-15 20:38:46 +02:00
parent f665a529e5
commit 80d87dea8c
5 changed files with 283 additions and 73 deletions
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69
tracker/tracker.go
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@ -27,19 +27,15 @@ type Tracker struct {
ActiveTrack int
CurrentInstrument int
CurrentUnit int
CurrentOctave byte
NoteTracking bool
Theme *material.Theme
OctaveUpBtn *widget.Clickable
OctaveDownBtn *widget.Clickable
BPMUpBtn *widget.Clickable
BPMDownBtn *widget.Clickable
Octave *NumberInput
BPM *NumberInput
NewTrackBtn *widget.Clickable
NewInstrumentBtn *widget.Clickable
LoadSongFileBtn *widget.Clickable
NewSongFileBtn *widget.Clickable
SongLengthUpBtn *widget.Clickable
SongLengthDownBtn *widget.Clickable
SongLength *NumberInput
SaveSongFileBtn *widget.Clickable
ParameterSliders []*widget.Float
UnitBtns []*widget.Clickable
@ -174,31 +170,30 @@ func (t *Tracker) sequencerLoop(closer <-chan struct{}) {
}
func (t *Tracker) ChangeOctave(delta int) bool {
newOctave := int(t.CurrentOctave) + delta
newOctave := t.Octave.Value + delta
if newOctave < 0 {
newOctave = 0
}
if newOctave > 9 {
newOctave = 9
}
if newOctave != int(t.CurrentOctave) {
t.CurrentOctave = byte(newOctave)
if newOctave != t.Octave.Value {
t.Octave.Value = newOctave
return true
}
return false
}
func (t *Tracker) ChangeBPM(delta int) bool {
t.SaveUndo()
newBPM := t.song.BPM + delta
if newBPM < 1 {
newBPM = 1
func (t *Tracker) SetBPM(value int) bool {
if value < 1 {
value = 1
}
if newBPM > 999 {
newBPM = 999
if value > 999 {
value = 999
}
if newBPM != int(t.song.BPM) {
t.song.BPM = newBPM
if value != int(t.song.BPM) {
t.SaveUndo()
t.song.BPM = value
t.sequencer.SetRowLength(44100 * 60 / (4 * t.song.BPM))
return true
}
@ -261,19 +256,22 @@ func (t *Tracker) SetCurrentPattern(pat byte) {
t.song.Tracks[t.ActiveTrack].Sequence[t.DisplayPattern] = pat
}
func (t *Tracker) IncreaseSongLength() {
t.SaveUndo()
for i := range t.song.Tracks {
seq := t.song.Tracks[i].Sequence
t.song.Tracks[i].Sequence = append(seq, seq[len(seq)-1])
func (t *Tracker) SetSongLength(value int) {
if value < 1 {
value = 1
}
}
if value != t.song.SequenceLength() {
t.SaveUndo()
for i := range t.song.Tracks {
seq := t.song.Tracks[i].Sequence
if len(t.song.Tracks[i].Sequence) > value {
t.song.Tracks[i].Sequence = t.song.Tracks[i].Sequence[:value]
} else if len(t.song.Tracks[i].Sequence) < value {
for k := len(t.song.Tracks[i].Sequence); k < value; k++ {
t.song.Tracks[i].Sequence = append(seq, seq[len(seq)-1])
}
}
func (t *Tracker) DecreaseSongLength() {
t.SaveUndo()
for i := range t.song.Tracks {
if len(t.song.Tracks[i].Sequence) > 0 {
t.song.Tracks[i].Sequence = t.song.Tracks[i].Sequence[0 : len(t.song.Tracks[i].Sequence)-1]
}
}
}
@ -282,19 +280,15 @@ func New(audioContext sointu.AudioContext) *Tracker {
t := &Tracker{
Theme: material.NewTheme(gofont.Collection()),
QuitButton: new(widget.Clickable),
CurrentOctave: 4,
audioContext: audioContext,
OctaveUpBtn: new(widget.Clickable),
OctaveDownBtn: new(widget.Clickable),
BPMUpBtn: new(widget.Clickable),
BPMDownBtn: new(widget.Clickable),
BPM: new(NumberInput),
Octave: new(NumberInput),
SongLength: new(NumberInput),
NewTrackBtn: new(widget.Clickable),
NewInstrumentBtn: new(widget.Clickable),
NewSongFileBtn: new(widget.Clickable),
LoadSongFileBtn: new(widget.Clickable),
SaveSongFileBtn: new(widget.Clickable),
SongLengthUpBtn: new(widget.Clickable),
SongLengthDownBtn: new(widget.Clickable),
setPlaying: make(chan bool),
rowJump: make(chan int),
patternJump: make(chan int),
@ -307,6 +301,7 @@ func New(audioContext sointu.AudioContext) *Tracker {
BottomHorizontalSplit: new(Split),
VerticalSplit: new(Split),
}
t.Octave.Value = 4
t.VerticalSplit.Axis = layout.Vertical
t.BottomHorizontalSplit.Ratio = -.5
t.Theme.Color.Primary = primaryColor