sointu/tracker/gioui/keybindings.go
2025-05-23 23:35:51 +03:00

317 lines
7.8 KiB
Go

package gioui
import (
_ "embed"
"fmt"
"strconv"
"strings"
"gioui.org/io/clipboard"
"gioui.org/io/key"
"gopkg.in/yaml.v2"
)
type (
KeyAction string
KeyBinding struct {
Key string
Shortcut, Ctrl, Command, Shift, Alt, Super bool
Action string
}
)
var keyBindingMap = map[key.Event]string{}
var keyActionMap = map[KeyAction]string{} // holds an informative string of the first key bound to an action
//go:embed keybindings.yml
var defaultKeyBindings []byte
func init() {
var keyBindings, userKeybindings []KeyBinding
if err := yaml.UnmarshalStrict(defaultKeyBindings, &keyBindings); err != nil {
panic(fmt.Errorf("failed to unmarshal default keybindings: %w", err))
}
if err := ReadCustomConfig("keybindings.yml", &userKeybindings); err == nil {
keyBindings = append(keyBindings, userKeybindings...)
}
for _, kb := range keyBindings {
var mods key.Modifiers
if kb.Shortcut {
mods |= key.ModShortcut
}
if kb.Ctrl {
mods |= key.ModCtrl
}
if kb.Command {
mods |= key.ModCommand
}
if kb.Shift {
mods |= key.ModShift
}
if kb.Alt {
mods |= key.ModAlt
}
if kb.Super {
mods |= key.ModSuper
}
keyEvent := key.Event{Name: key.Name(kb.Key), Modifiers: mods, State: key.Press}
action, ok := keyBindingMap[keyEvent] // if this key has been previously bound, remove it from the hint map
if ok {
delete(keyActionMap, KeyAction(action))
}
if kb.Action == "" { // unbind
delete(keyBindingMap, keyEvent)
} else { // bind
keyBindingMap[keyEvent] = kb.Action
// last binding of the some action wins for displaying the hint
modString := strings.Replace(mods.String(), "-", "+", -1)
text := kb.Key
if modString != "" {
text = modString + "+" + text
}
keyActionMap[KeyAction(kb.Action)] = text
}
}
}
func makeHint(hint, format, action string) string {
if keyActionMap[KeyAction(action)] != "" {
return hint + fmt.Sprintf(format, keyActionMap[KeyAction(action)])
}
return hint
}
// KeyEvent handles incoming key events and returns true if repaint is needed.
func (t *Tracker) KeyEvent(e key.Event, gtx C) {
if e.State == key.Release {
t.JammingReleased(e)
return
}
action, ok := keyBindingMap[e]
if !ok {
return
}
switch action {
// Actions
case "AddTrack":
t.AddTrack().Do()
case "DeleteTrack":
t.DeleteTrack().Do()
case "AddInstrument":
t.AddInstrument().Do()
case "DeleteInstrument":
t.DeleteInstrument().Do()
case "AddUnitAfter":
t.AddUnit(false).Do()
case "AddUnitBefore":
t.AddUnit(true).Do()
case "DeleteUnit":
t.DeleteUnit().Do()
case "ClearUnit":
t.ClearUnit().Do()
case "Undo":
t.Undo().Do()
case "Redo":
t.Redo().Do()
case "AddSemitone":
t.AddSemitone().Do()
case "SubtractSemitone":
t.SubtractSemitone().Do()
case "AddOctave":
t.AddOctave().Do()
case "SubtractOctave":
t.SubtractOctave().Do()
case "EditNoteOff":
t.EditNoteOff().Do()
case "RemoveUnused":
t.RemoveUnused().Do()
case "PlayCurrentPosFollow":
t.Follow().Bool().Set(true)
t.PlayCurrentPos().Do()
case "PlayCurrentPosUnfollow":
t.Follow().Bool().Set(false)
t.PlayCurrentPos().Do()
case "PlaySongStartFollow":
t.Follow().Bool().Set(true)
t.PlaySongStart().Do()
case "PlaySongStartUnfollow":
t.Follow().Bool().Set(false)
t.PlaySongStart().Do()
case "PlaySelectedFollow":
t.Follow().Bool().Set(true)
t.PlaySelected().Do()
case "PlaySelectedUnfollow":
t.Follow().Bool().Set(false)
t.PlaySelected().Do()
case "PlayLoopFollow":
t.Follow().Bool().Set(true)
t.PlayFromLoopStart().Do()
case "PlayLoopUnfollow":
t.Follow().Bool().Set(false)
t.PlayFromLoopStart().Do()
case "StopPlaying":
t.StopPlaying().Do()
case "AddOrderRowBefore":
t.AddOrderRow(true).Do()
case "AddOrderRowAfter":
t.AddOrderRow(false).Do()
case "DeleteOrderRowBackwards":
t.DeleteOrderRow(true).Do()
case "DeleteOrderRowForwards":
t.DeleteOrderRow(false).Do()
case "NewSong":
t.NewSong().Do()
case "OpenSong":
t.OpenSong().Do()
case "Quit":
if canQuit {
t.RequestQuit().Do()
}
case "SaveSong":
t.SaveSong().Do()
case "SaveSongAs":
t.SaveSongAs().Do()
case "ExportWav":
t.Export().Do()
case "ExportFloat":
t.ExportFloat().Do()
case "ExportInt16":
t.ExportInt16().Do()
case "SplitTrack":
t.SplitTrack().Do()
case "SplitInstrument":
t.SplitInstrument().Do()
// Booleans
case "PanicToggle":
t.Panic().Bool().Toggle()
case "RecordingToggle":
t.IsRecording().Bool().Toggle()
case "PlayingToggleFollow":
t.Follow().Bool().Set(true)
t.Playing().Bool().Toggle()
case "PlayingToggleUnfollow":
t.Follow().Bool().Set(false)
t.Playing().Bool().Toggle()
case "InstrEnlargedToggle":
t.InstrEnlarged().Bool().Toggle()
case "LinkInstrTrackToggle":
t.LinkInstrTrack().Bool().Toggle()
case "CommentExpandedToggle":
t.CommentExpanded().Bool().Toggle()
case "FollowToggle":
t.Follow().Bool().Toggle()
case "UnitDisabledToggle":
t.UnitDisabled().Bool().Toggle()
case "LoopToggle":
t.LoopToggle().Bool().Toggle()
case "UniquePatternsToggle":
t.UniquePatterns().Bool().Toggle()
case "MuteToggle":
t.Mute().Bool().Toggle()
case "SoloToggle":
t.Solo().Bool().Toggle()
// Integers
case "InstrumentVoicesAdd":
t.Model.InstrumentVoices().Int().Add(1)
case "InstrumentVoicesSubtract":
t.Model.InstrumentVoices().Int().Add(-1)
case "TrackVoicesAdd":
t.TrackVoices().Int().Add(1)
case "TrackVoicesSubtract":
t.TrackVoices().Int().Add(-1)
case "SongLengthAdd":
t.SongLength().Int().Add(1)
case "SongLengthSubtract":
t.SongLength().Int().Add(-1)
case "BPMAdd":
t.BPM().Int().Add(1)
case "BPMSubtract":
t.BPM().Int().Add(-1)
case "RowsPerPatternAdd":
t.RowsPerPattern().Int().Add(1)
case "RowsPerPatternSubtract":
t.RowsPerPattern().Int().Add(-1)
case "RowsPerBeatAdd":
t.RowsPerBeat().Int().Add(1)
case "RowsPerBeatSubtract":
t.RowsPerBeat().Int().Add(-1)
case "StepAdd":
t.Step().Int().Add(1)
case "StepSubtract":
t.Step().Int().Add(-1)
case "OctaveAdd":
t.Octave().Int().Add(1)
case "OctaveSubtract":
t.Octave().Int().Add(-1)
// Other miscellaneous
case "Paste":
gtx.Execute(clipboard.ReadCmd{Tag: t})
case "OrderEditorFocus":
t.OrderEditor.scrollTable.Focus()
case "TrackEditorFocus":
t.TrackEditor.scrollTable.Focus()
case "InstrumentEditorFocus":
t.InstrumentEditor.Focus()
case "FocusPrev":
switch {
case t.OrderEditor.scrollTable.Focused():
t.InstrumentEditor.unitEditor.sliderList.Focus()
case t.TrackEditor.scrollTable.Focused():
t.OrderEditor.scrollTable.Focus()
case t.InstrumentEditor.Focused():
if t.InstrumentEditor.enlargeBtn.Bool.Value() {
t.InstrumentEditor.unitEditor.sliderList.Focus()
} else {
t.TrackEditor.scrollTable.Focus()
}
default:
t.InstrumentEditor.Focus()
}
case "FocusNext":
switch {
case t.OrderEditor.scrollTable.Focused():
t.TrackEditor.scrollTable.Focus()
case t.TrackEditor.scrollTable.Focused():
t.InstrumentEditor.Focus()
case t.InstrumentEditor.Focused():
t.InstrumentEditor.unitEditor.sliderList.Focus()
default:
if t.InstrumentEditor.enlargeBtn.Bool.Value() {
t.InstrumentEditor.Focus()
} else {
t.OrderEditor.scrollTable.Focus()
}
}
default:
if action[:4] == "Note" {
val, err := strconv.Atoi(string(action[4:]))
if err != nil {
break
}
t.JammingPressed(e, val-12)
}
}
}
func (t *Tracker) JammingPressed(e key.Event, val int) byte {
if _, ok := t.KeyPlaying[e.Name]; !ok {
n := noteAsValue(t.OctaveNumberInput.Int.Value(), val)
instr := t.InstrumentEditor.instrumentDragList.TrackerList.Selected()
t.KeyPlaying[e.Name] = t.InstrNoteOn(instr, n)
return n
}
return 0
}
func (t *Tracker) JammingReleased(e key.Event) bool {
if noteID, ok := t.KeyPlaying[e.Name]; ok {
noteID.NoteOff()
delete(t.KeyPlaying, e.Name)
return true
}
return false
}