func NewScoreView(score *audio.Score, band audio.Band) *ScoreView {
s := &ScoreView{score: score, band: band, scaleTime: 32}
s.ViewBase = NewView(s)
instruments := audio.BandInstruments(band)
loop:
for name := range instruments {
for _, part := range score.Parts {
if part.Name == name {
continue loop
}
}
score.Parts = append(score.Parts, &audio.Part{Name: name})
fmt.Println("added part for instrument " + name)
}
// TODO: warn about parts without instruments
for _, part := range score.Parts {
p := newPartView(s, part)
s.parts = append(s.parts, p)
s.Add(p)
}
s.timeGrid = &uniformGrid{0, 1}
s.player = audio.NewScorePlayer(score, band)
s.play = make(chan bool, 1)
s.close = make(chan bool)
go s.animate()
return s
}
func (s *ScoreView) animate() {
var next <-chan time.Time
var ctrl audio.PlayControl
for {
select {
case <-s.play:
if next != nil {
next = nil
ctrl.Stop()
break
}
for _, inst := range audio.BandInstruments(s.band) {
inst.Stop()
}
ctrl = audio.PlayAsync(s.player)
next = time.After(time.Second / 60)
case <-next:
next = time.After(time.Second / 60)
Do(s, func() {
s.cursorTime = s.player.GetTime()
Repaint(s)
})
case <-ctrl.Done:
next = nil
Do(s, func() {
SetKeyFocus(s.oldFocus)
})
case <-s.close:
return
}
}
}
func (s *ScoreView) editPattern(e *patternEventView) {
p := NewPatternView(e.event.Pattern, audio.BandInstruments(s.band)[e.part.part.Name])
p.closed = func() {
s.pattern = nil
s.reform()
SetKeyFocus(e)
}
s.pattern = p
s.Add(p)
s.reform()
p.InitFocus()
}