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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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215
tracker/keyevent.go
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@ -1,8 +1,8 @@
package tracker
import (
"os"
"strconv"
"strings"
"gioui.org/io/key"
)
@ -42,6 +42,38 @@ var noteMap = map[string]int{
"P": 16,
}
var unitKeyMap = map[string]string{
"e": "envelope",
"o": "oscillator",
"m": "mulp",
"M": "mul",
"a": "addp",
"A": "add",
"p": "pan",
"S": "push",
"P": "pop",
"O": "out",
"l": "loadnote",
"L": "loadval",
"h": "xch",
"d": "delay",
"D": "distort",
"H": "hold",
"b": "crush",
"g": "gain",
"i": "invgain",
"f": "filter",
"I": "clip",
"E": "speed",
"r": "compressor",
"u": "outaux",
"U": "aux",
"s": "send",
"n": "noise",
"N": "in",
"R": "receive",
}
// KeyEvent handles incoming key events and returns true if repaint is needed.
func (t *Tracker) KeyEvent(e key.Event) bool {
if e.State == key.Press {
@ -59,14 +91,15 @@ func (t *Tracker) KeyEvent(e key.Event) bool {
t.Redo()
return true
}
case "A":
t.SetCurrentNote(0)
return true
case key.NameDeleteForward:
t.DeleteSelection()
return true
case key.NameEscape:
os.Exit(0)
switch t.EditMode {
case EditTracks:
t.DeleteSelection()
return true
case EditUnits:
t.DeleteUnit()
return true
}
case "Space":
t.TogglePlay()
return true
@ -75,75 +108,161 @@ func (t *Tracker) KeyEvent(e key.Event) bool {
return t.ChangeOctave(1)
}
return t.ChangeOctave(-1)
case key.NameTab:
if e.Modifiers.Contain(key.ModShift) {
t.EditMode = (t.EditMode - 1 + 4) % 4
} else {
t.EditMode = (t.EditMode + 1) % 4
}
return true
case key.NameUpArrow:
delta := -1
if e.Modifiers.Contain(key.ModCtrl) {
delta = -t.song.RowsPerPattern
switch t.EditMode {
case EditPatterns:
if e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.SongRow = SongRow{}
} else {
t.Cursor.Row -= t.song.RowsPerPattern
}
t.NoteTracking = false
case EditTracks:
if e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Row -= t.song.RowsPerPattern
} else {
t.Cursor.Row--
}
t.NoteTracking = false
case EditUnits:
t.CurrentUnit--
case EditParameters:
t.CurrentParam--
}
t.Cursor.Row += delta
t.Cursor.Clamp(t.song)
t.ClampPositions()
if !e.Modifiers.Contain(key.ModShift) {
t.SelectionCorner = t.Cursor
t.Unselect()
}
t.NoteTracking = false
return true
case key.NameDownArrow:
delta := 1
if e.Modifiers.Contain(key.ModCtrl) {
delta = t.song.RowsPerPattern
switch t.EditMode {
case EditPatterns:
if e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Row = t.song.TotalRows() - 1
} else {
t.Cursor.Row += t.song.RowsPerPattern
}
t.NoteTracking = false
case EditTracks:
if e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Row += t.song.RowsPerPattern
} else {
t.Cursor.Row++
}
t.NoteTracking = false
case EditUnits:
t.CurrentUnit++
case EditParameters:
t.CurrentParam++
}
t.Cursor.Row += delta
t.Cursor.Clamp(t.song)
t.ClampPositions()
if !e.Modifiers.Contain(key.ModShift) {
t.SelectionCorner = t.Cursor
t.Unselect()
}
t.NoteTracking = false
return true
case key.NameLeftArrow:
if t.CursorColumn == 0 || !t.TrackShowHex[t.Cursor.Track] || e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Track--
t.Cursor.Clamp(t.song)
if t.TrackShowHex[t.Cursor.Track] {
switch t.EditMode {
case EditPatterns:
if e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Track = 0
} else {
t.Cursor.Track--
}
case EditTracks:
if t.CursorColumn == 0 || !t.TrackShowHex[t.Cursor.Track] || e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Track--
t.CursorColumn = 1
} else {
t.CursorColumn = 0
t.CursorColumn--
}
if !e.Modifiers.Contain(key.ModShift) {
t.SelectionCorner = t.Cursor
case EditUnits:
t.CurrentInstrument--
case EditParameters:
if e.Modifiers.Contain(key.ModShift) {
t.SetUnitParam(t.GetUnitParam() - 16)
} else {
t.SetUnitParam(t.GetUnitParam() - 1)
}
} else {
t.CursorColumn--
}
t.ClampPositions()
if !e.Modifiers.Contain(key.ModShift) {
t.Unselect()
}
return true
case key.NameRightArrow:
if t.CursorColumn == 1 || !t.TrackShowHex[t.Cursor.Track] || e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Track++
t.Cursor.Clamp(t.song)
if !e.Modifiers.Contain(key.ModShift) {
t.SelectionCorner = t.Cursor
switch t.EditMode {
case EditPatterns:
if e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Track = len(t.song.Tracks) - 1
} else {
t.Cursor.Track++
}
t.CursorColumn = 0
} else {
t.CursorColumn++
case EditTracks:
if t.CursorColumn == 0 || !t.TrackShowHex[t.Cursor.Track] || e.Modifiers.Contain(key.ModCtrl) {
t.Cursor.Track++
t.CursorColumn = 0
} else {
t.CursorColumn++
}
case EditUnits:
t.CurrentInstrument++
case EditParameters:
if e.Modifiers.Contain(key.ModShift) {
t.SetUnitParam(t.GetUnitParam() + 16)
} else {
t.SetUnitParam(t.GetUnitParam() + 1)
}
}
t.ClampPositions()
if !e.Modifiers.Contain(key.ModShift) {
t.Unselect()
}
return true
}
if e.Modifiers.Contain(key.ModCtrl) {
if iv, err := strconv.ParseInt(e.Name, 16, 8); err == nil {
switch t.EditMode {
case EditPatterns:
if iv, err := strconv.Atoi(e.Name); err == nil {
t.SetCurrentPattern(byte(iv))
return true
}
} else {
if !t.TrackShowHex[t.Cursor.Track] {
if val, ok := noteMap[e.Name]; ok {
t.NotePressed(val)
return true
}
} else {
if b := byte(e.Name[0]) - 'A'; len(e.Name) == 1 && b >= 0 && b < 26 {
t.SetCurrentPattern(b + 10)
return true
}
case EditTracks:
if t.TrackShowHex[t.Cursor.Track] {
if iv, err := strconv.ParseInt(e.Name, 16, 8); err == nil {
t.NumberPressed(byte(iv))
return true
}
} else {
if e.Name == "A" {
t.SetCurrentNote(0)
return true
}
if val, ok := noteMap[e.Name]; ok {
t.NotePressed(val)
return true
}
}
case EditUnits:
name := e.Name
if !e.Modifiers.Contain(key.ModShift) {
name = strings.ToLower(name)
}
if val, ok := unitKeyMap[name]; ok {
if e.Modifiers.Contain(key.ModCtrl) {
t.AddUnit()
}
t.SetUnit(val)
return true
}
}
}