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feat(tracker): implement edit modes, resembling tab stops

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vsariola
2021-02-08 20:15:37 +02:00
parent 7408956f77
commit 38008bdb87
13 changed files with 619 additions and 347 deletions
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95
tracker/tracker.go
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@ -13,6 +13,15 @@ import (
"github.com/vsariola/sointu"
)
type EditMode int
const (
EditPatterns EditMode = iota
EditTracks
EditUnits
EditParameters
)
type Tracker struct {
QuitButton *widget.Clickable
songPlayMutex sync.RWMutex // protects song and playing
@ -21,11 +30,13 @@ type Tracker struct {
// protects PlayPattern and PlayRow
playRowPatMutex sync.RWMutex // protects song and playing
PlayPosition SongRow
EditMode EditMode
SelectionCorner SongPoint
Cursor SongPoint
CursorColumn int
CurrentInstrument int
CurrentUnit int
CurrentParam int
UnitGroupMenuVisible bool
UnitGroupMenuIndex int
UnitSubMenuIndex int
@ -85,12 +96,6 @@ func (t *Tracker) LoadSong(song sointu.Song) error {
defer t.songPlayMutex.Unlock()
t.song = song
t.ClampPositions()
if l := len(t.song.Patch.Instruments); t.CurrentInstrument >= l {
t.CurrentInstrument = l - 1
}
if l := len(t.song.Patch.Instruments[t.CurrentInstrument].Units); t.CurrentUnit >= l {
t.CurrentUnit = l - 1
}
if t.sequencer != nil {
t.sequencer.SetPatch(song.Patch)
t.sequencer.SetRowLength(song.SamplesPerRow())
@ -98,6 +103,16 @@ func (t *Tracker) LoadSong(song sointu.Song) error {
return nil
}
func clamp(a, min, max int) int {
if a < min {
return min
}
if a >= max {
return max - 1
}
return a
}
func (t *Tracker) Close() {
t.audioContext.Close()
t.closer <- struct{}{}
@ -232,6 +247,7 @@ func (t *Tracker) AddInstrument() {
copy(instr[t.CurrentInstrument+2:], t.song.Patch.Instruments[t.CurrentInstrument+1:])
t.song.Patch.Instruments = instr
t.CurrentInstrument++
t.ClampPositions()
t.sequencer.SetPatch(t.song.Patch)
}
@ -242,6 +258,7 @@ func (t *Tracker) SwapInstruments(i, j int) {
t.SaveUndo()
instruments := t.song.Patch.Instruments
instruments[i], instruments[j] = instruments[j], instruments[i]
t.ClampPositions()
t.sequencer.SetPatch(t.song.Patch)
}
@ -254,6 +271,7 @@ func (t *Tracker) DeleteInstrument() {
if t.CurrentInstrument >= len(t.song.Patch.Instruments) {
t.CurrentInstrument = len(t.song.Patch.Instruments) - 1
}
t.ClampPositions()
t.sequencer.SetPatch(t.song.Patch)
}
@ -343,6 +361,7 @@ func (t *Tracker) AddUnit() {
copy(units[t.CurrentUnit+2:], t.song.Patch.Instruments[t.CurrentInstrument].Units[t.CurrentUnit+1:])
t.song.Patch.Instruments[t.CurrentInstrument].Units = units
t.CurrentUnit++
t.ClampPositions()
t.sequencer.SetPatch(t.song.Patch)
}
@ -350,6 +369,7 @@ func (t *Tracker) ClearUnit() {
t.SaveUndo()
t.song.Patch.Instruments[t.CurrentInstrument].Units[t.CurrentUnit].Type = ""
t.song.Patch.Instruments[t.CurrentInstrument].Units[t.CurrentUnit].Parameters = make(map[string]int)
t.ClampPositions()
t.sequencer.SetPatch(t.song.Patch)
}
@ -365,6 +385,30 @@ func (t *Tracker) DeleteUnit() {
if t.CurrentUnit > 0 {
t.CurrentUnit--
}
t.ClampPositions()
t.sequencer.SetPatch(t.song.Patch)
}
func (t *Tracker) GetUnitParam() int {
unit := t.song.Patch.Instruments[t.CurrentInstrument].Units[t.CurrentUnit]
paramtype := sointu.UnitTypes[unit.Type][t.CurrentParam]
return unit.Parameters[paramtype.Name]
}
func (t *Tracker) SetUnitParam(value int) {
unit := t.song.Patch.Instruments[t.CurrentInstrument].Units[t.CurrentUnit]
unittype := sointu.UnitTypes[unit.Type][t.CurrentParam]
if value < unittype.MinValue {
value = unittype.MinValue
} else if value > unittype.MaxValue {
value = unittype.MaxValue
}
if unit.Parameters[unittype.Name] == value {
return
}
t.SaveUndo()
unit.Parameters[unittype.Name] = value
t.ClampPositions()
t.sequencer.SetPatch(t.song.Patch)
}
@ -375,6 +419,7 @@ func (t *Tracker) SwapUnits(i, j int) {
t.SaveUndo()
units := t.song.Patch.Instruments[t.CurrentInstrument].Units
units[i], units[j] = units[j], units[i]
t.ClampPositions()
t.sequencer.SetPatch(t.song.Patch)
}
@ -382,6 +427,38 @@ func (t *Tracker) ClampPositions() {
t.PlayPosition.Clamp(t.song)
t.Cursor.Clamp(t.song)
t.SelectionCorner.Clamp(t.song)
if t.Cursor.Track >= len(t.TrackShowHex) || !t.TrackShowHex[t.Cursor.Track] {
t.CursorColumn = 0
}
t.CurrentInstrument = clamp(t.CurrentInstrument, 0, len(t.song.Patch.Instruments))
t.CurrentUnit = clamp(t.CurrentUnit, 0, len(t.song.Patch.Instruments[t.CurrentInstrument].Units))
numSettableParams := 0
for _, t := range sointu.UnitTypes[t.song.Patch.Instruments[t.CurrentInstrument].Units[t.CurrentUnit].Type] {
if t.CanSet {
numSettableParams++
}
}
if t.CurrentParam < 0 && t.CurrentUnit > 0 {
t.CurrentUnit--
numSettableParams = 0
for _, t := range sointu.UnitTypes[t.song.Patch.Instruments[t.CurrentInstrument].Units[t.CurrentUnit].Type] {
if t.CanSet {
numSettableParams++
}
}
t.CurrentParam = numSettableParams - 1
}
if t.CurrentParam >= numSettableParams && t.CurrentUnit < len(t.song.Patch.Instruments[t.CurrentInstrument].Units)-1 {
t.CurrentUnit++
numSettableParams = 0
for _, t := range sointu.UnitTypes[t.song.Patch.Instruments[t.CurrentInstrument].Units[t.CurrentUnit].Type] {
if t.CanSet {
numSettableParams++
}
}
t.CurrentParam = 0
}
t.CurrentParam = clamp(t.CurrentParam, 0, numSettableParams)
}
func (t *Tracker) getSelectionRange() (int, int, int, int) {
@ -443,6 +520,10 @@ func (t *Tracker) DeleteSelection() {
}
}
func (t *Tracker) Unselect() {
t.SelectionCorner = t.Cursor
}
func New(audioContext sointu.AudioContext, synthService sointu.SynthService) *Tracker {
t := &Tracker{
Theme: material.NewTheme(gofont.Collection()),
@ -484,6 +565,8 @@ func New(audioContext sointu.AudioContext, synthService sointu.SynthService) *Tr
VerticalSplit: new(Split),
ChooseUnitTypeList: &layout.List{Axis: layout.Vertical},
}
t.UnitDragList.HoverItem = -1
t.InstrumentDragList.HoverItem = -1
t.Octave.Value = 4
t.VerticalSplit.Axis = layout.Vertical
t.BottomHorizontalSplit.Ratio = -.5