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feat(tracker): hook up audio to tracker, we have liftoff

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audio still a bit crackly; should probably decouple actual row ticking and rendering of audio (but how does that work with tempo ops?)

sequencer goroutine is a bit weird, too, should rethink
This commit is contained in:
Matias Lahti
2020-11-08 04:17:21 +02:00
parent 175bbb7743
commit 5e45e4f1f4
8 changed files with 146 additions and 5 deletions
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5
go4k/tracker/track.go
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@ -15,7 +15,7 @@ import (
const trackRowHeight = 16
const trackWidth = 100
func (t *Tracker) layoutTrack(notes []byte, active bool, cursorRow, cursorCol int) layout.Widget {
func (t *Tracker) layoutTrack(notes []byte, active bool, cursorRow, cursorCol, playingRow int) layout.Widget {
return func(gtx layout.Context) layout.Dimensions {
gtx.Constraints.Min.X = trackWidth
gtx.Constraints.Max.X = trackWidth
@ -45,6 +45,9 @@ func (t *Tracker) layoutTrack(notes []byte, active bool, cursorRow, cursorCol in
}
op.Offset(f32.Pt(0, (-1*trackRowHeight)*float32(cursorRow))).Add(gtx.Ops)
for i, c := range notes {
if i == playingRow {
paint.FillShape(gtx.Ops, trackerPlayColor, clip.Rect{Max: image.Pt(trackWidth, trackRowHeight)}.Op())
}
if i == cursorRow {
paint.ColorOp{Color: trackerActiveTextColor}.Add(gtx.Ops)
} else {