diff options
Diffstat (limited to 'website/sandbox/learnpianochords')
| -rw-r--r-- | website/sandbox/learnpianochords/src/ChordInspector.elm | 15 | ||||
| -rw-r--r-- | website/sandbox/learnpianochords/src/Main.elm | 542 | ||||
| -rw-r--r-- | website/sandbox/learnpianochords/src/Misc.elm | 12 | ||||
| -rw-r--r-- | website/sandbox/learnpianochords/src/Overview.elm | 11 | ||||
| -rw-r--r-- | website/sandbox/learnpianochords/src/Practice.elm | 44 | ||||
| -rw-r--r-- | website/sandbox/learnpianochords/src/Preferences.elm | 141 | ||||
| -rw-r--r-- | website/sandbox/learnpianochords/src/State.elm | 271 |
7 files changed, 498 insertions, 538 deletions
diff --git a/website/sandbox/learnpianochords/src/ChordInspector.elm b/website/sandbox/learnpianochords/src/ChordInspector.elm deleted file mode 100644 index f43b534eb013..000000000000 --- a/website/sandbox/learnpianochords/src/ChordInspector.elm +++ /dev/null @@ -1,15 +0,0 @@ -module ChordInspector exposing (render) - -import Html exposing (..) -import NoteInspector -import Theory - - -render : Theory.Chord -> Html a -render chord = - case Theory.notesForChord chord of - Nothing -> - p [] [ text "Cannot retrieve the notes for the chord." ] - - Just notes -> - NoteInspector.render notes diff --git a/website/sandbox/learnpianochords/src/Main.elm b/website/sandbox/learnpianochords/src/Main.elm index 1c40d0d7961a..d583e3fcf9a3 100644 --- a/website/sandbox/learnpianochords/src/Main.elm +++ b/website/sandbox/learnpianochords/src/Main.elm @@ -2,544 +2,40 @@ module Main exposing (main) import Browser import Html exposing (..) -import Html.Attributes exposing (..) -import Html.Events exposing (..) -import Icon -import Piano -import Random -import Random.List -import Tempo -import Theory +import Misc +import Overview +import Practice +import Preferences +import State import Time exposing (..) -import UI -type alias Model = - { whitelistedChords : List Theory.Chord - , whitelistedChordTypes : List Theory.ChordType - , whitelistedInversions : List Theory.ChordInversion - , whitelistedPitchClasses : List Theory.PitchClass - , whitelistedKeys : List Theory.Key - , selectedChord : Maybe Theory.Chord - , isPaused : Bool - , tempo : Int - , firstNote : Theory.Note - , lastNote : Theory.Note - , practiceMode : PracticeMode - , view : View - } - - -type View - = Preferences - | Practice - - -{-| Control the type of practice you'd like. --} -type PracticeMode - = KeyMode - | FineTuneMode - - -type Msg - = NextChord - | NewChord Theory.Chord - | Play - | Pause - | IncreaseTempo - | DecreaseTempo - | SetTempo String - | ToggleInversion Theory.ChordInversion - | ToggleChordType Theory.ChordType - | TogglePitchClass Theory.PitchClass - | ToggleKey Theory.Key - | DoNothing - | SetPracticeMode PracticeMode - | SelectAllKeys - | DeselectAllKeys - | SetView View - - -{-| The amount by which we increase or decrease tempo. --} -tempoStep : Int -tempoStep = - 5 - - -{-| Return the number of milliseconds that elapse during an interval in a -`target` bpm. --} -bpmToMilliseconds : Int -> Int -bpmToMilliseconds target = - let - msPerMinute = - 1000 * 60 - in - round (toFloat msPerMinute / toFloat target) - - -{-| The initial state for the application. --} -init : Model -init = - let - ( firstNote, lastNote ) = - ( Theory.C3, Theory.C6 ) - - inversions = - Theory.allInversions - - chordTypes = - Theory.allChordTypes - - pitchClasses = - Theory.allPitchClasses - - keys = - [ { pitchClass = Theory.C, mode = Theory.MajorMode } ] - - practiceMode = - KeyMode - in - { practiceMode = practiceMode - , whitelistedChords = - case practiceMode of - KeyMode -> - keys |> List.concatMap Theory.chordsForKey - - FineTuneMode -> - Theory.allChords - { start = firstNote - , end = lastNote - , inversions = inversions - , chordTypes = chordTypes - , pitchClasses = pitchClasses - } - , whitelistedChordTypes = chordTypes - , whitelistedInversions = inversions - , whitelistedPitchClasses = pitchClasses - , whitelistedKeys = keys - , selectedChord = Nothing - , isPaused = True - , tempo = 20 - , firstNote = firstNote - , lastNote = lastNote - , view = Preferences - } - - -subscriptions : Model -> Sub Msg -subscriptions { isPaused, tempo } = - if isPaused then +subscriptions : State.Model -> Sub State.Msg +subscriptions model = + if model.isPaused then Sub.none else - Time.every (tempo |> bpmToMilliseconds |> toFloat) (\_ -> NextChord) - - -{-| Now that we have state, we need a function to change the state. --} -update : Msg -> Model -> ( Model, Cmd Msg ) -update msg model = - case msg of - DoNothing -> - ( model, Cmd.none ) - - SetPracticeMode practiceMode -> - ( { model - | practiceMode = practiceMode - , isPaused = True - } - , Cmd.none - ) - - SetView x -> - ( { model - | view = x - , isPaused = True - } - , Cmd.none - ) - - SelectAllKeys -> - ( { model - | whitelistedKeys = Theory.allKeys - , whitelistedChords = - Theory.allKeys |> List.concatMap Theory.chordsForKey - } - , Cmd.none - ) - - DeselectAllKeys -> - ( { model - | whitelistedKeys = [] - , whitelistedChords = [] - } - , Cmd.none - ) - - NewChord chord -> - ( { model | selectedChord = Just chord } - , Cmd.none - ) - - NextChord -> - ( model - , Random.generate - (\x -> - case x of - ( Just chord, _ ) -> - NewChord chord - - ( Nothing, _ ) -> - DoNothing - ) - (Random.List.choose model.whitelistedChords) - ) - - Play -> - ( { model | isPaused = False } - , Cmd.none - ) - - Pause -> - ( { model | isPaused = True } - , Cmd.none - ) - - IncreaseTempo -> - ( { model | tempo = model.tempo + tempoStep } - , Cmd.none - ) - - DecreaseTempo -> - ( { model | tempo = model.tempo - tempoStep } - , Cmd.none - ) - - ToggleChordType chordType -> - let - chordTypes = - if List.member chordType model.whitelistedChordTypes then - List.filter ((/=) chordType) model.whitelistedChordTypes - - else - chordType :: model.whitelistedChordTypes - in - ( { model - | whitelistedChordTypes = chordTypes - , whitelistedChords = - Theory.allChords - { start = model.firstNote - , end = model.lastNote - , inversions = model.whitelistedInversions - , chordTypes = chordTypes - , pitchClasses = model.whitelistedPitchClasses - } - } - , Cmd.none - ) - - ToggleInversion inversion -> - let - inversions = - if List.member inversion model.whitelistedInversions then - List.filter ((/=) inversion) model.whitelistedInversions - - else - inversion :: model.whitelistedInversions - in - ( { model - | whitelistedInversions = inversions - , whitelistedChords = - Theory.allChords - { start = model.firstNote - , end = model.lastNote - , inversions = inversions - , chordTypes = model.whitelistedChordTypes - , pitchClasses = model.whitelistedPitchClasses - } - } - , Cmd.none - ) - - TogglePitchClass pitchClass -> - let - pitchClasses = - if List.member pitchClass model.whitelistedPitchClasses then - List.filter ((/=) pitchClass) model.whitelistedPitchClasses - - else - pitchClass :: model.whitelistedPitchClasses - in - ( { model - | whitelistedPitchClasses = pitchClasses - , whitelistedChords = - Theory.allChords - { start = model.firstNote - , end = model.lastNote - , inversions = model.whitelistedInversions - , chordTypes = model.whitelistedChordTypes - , pitchClasses = pitchClasses - } - } - , Cmd.none - ) - - ToggleKey key -> - let - keys = - if List.member key model.whitelistedKeys then - List.filter ((/=) key) model.whitelistedKeys - - else - key :: model.whitelistedKeys - in - ( { model - | whitelistedKeys = keys - , whitelistedChords = - keys |> List.concatMap Theory.chordsForKey - } - , Cmd.none - ) - - SetTempo tempo -> - ( { model - | tempo = - case String.toInt tempo of - Just x -> - x - - Nothing -> - model.tempo - } - , Cmd.none - ) - - -playPause : Model -> Html Msg -playPause { isPaused } = - if isPaused then - button [ onClick Play ] [ text "Play" ] - - else - button [ onClick Pause ] [ text "Pause" ] - - -chordTypeCheckboxes : List Theory.ChordType -> Html Msg -chordTypeCheckboxes chordTypes = - ul [] - (Theory.allChordTypes - |> List.map - (\chordType -> - li [] - [ label [] [ text (Theory.chordTypeName chordType) ] - , input - [ type_ "checkbox" - , onClick (ToggleChordType chordType) - , checked (List.member chordType chordTypes) - ] - [] - ] - ) - ) - - -inversionCheckboxes : List Theory.ChordInversion -> Html Msg -inversionCheckboxes inversions = - ul [] - (Theory.allInversions - |> List.map - (\inversion -> - li [] - [ label [] [ text (Theory.inversionName inversion) ] - , input - [ type_ "checkbox" - , onClick (ToggleInversion inversion) - , checked (List.member inversion inversions) - ] - [] - ] - ) - ) - - -selectKey : - Model - -> - { relativeMajor : Theory.Key - , relativeMinor : Theory.Key - } - -> Html Msg -selectKey model { relativeMajor, relativeMinor } = - let - active key = - List.member key model.whitelistedKeys - - buttonLabel major minor = - Theory.viewKey major ++ ", " ++ Theory.viewKey minor - in - div [ class "flex pt-0" ] - [ UI.textToggleButton - { label = buttonLabel relativeMajor relativeMinor - , handleClick = ToggleKey relativeMinor - , classes = [ "flex-1" ] - , toggled = active relativeMinor || active relativeMajor - } - ] - + Time.every (model.tempo |> Misc.bpmToMilliseconds |> toFloat) (\_ -> State.NextChord) -keyCheckboxes : Model -> Html Msg -keyCheckboxes model = - let - majorKey pitchClass = - { pitchClass = pitchClass, mode = Theory.MajorMode } - minorKey pitchClass = - { pitchClass = pitchClass, mode = Theory.MinorMode } - - circleOfFifths = - [ ( Theory.C, Theory.A ) - , ( Theory.G, Theory.E ) - , ( Theory.D, Theory.B ) - , ( Theory.A, Theory.F_sharp ) - , ( Theory.E, Theory.C_sharp ) - , ( Theory.B, Theory.G_sharp ) - , ( Theory.F_sharp, Theory.D_sharp ) - , ( Theory.C_sharp, Theory.A_sharp ) - , ( Theory.G_sharp, Theory.F ) - , ( Theory.D_sharp, Theory.C ) - , ( Theory.A_sharp, Theory.G ) - , ( Theory.F, Theory.D ) - ] - in - div [] - [ h2 [ class "text-gray-500 text-center pt-10 text-5xl" ] [ text "Select keys" ] - , ul [] - (circleOfFifths - |> List.map - (\( major, minor ) -> - selectKey model - { relativeMajor = majorKey major - , relativeMinor = minorKey minor - } - ) - ) - ] - - -practiceModeButtons : Model -> Html Msg -practiceModeButtons model = - div [ class "text-center" ] - [ h2 [ class "py-10 text-5xl" ] [ text "Practice Mode" ] - , div [ class "flex pb-6" ] - [ UI.simpleButton - { label = "Key" - , classes = [ "flex-1", "rounded-r-none" ] - , handleClick = SetPracticeMode KeyMode - , color = - if model.practiceMode == KeyMode then - UI.Primary - - else - UI.Secondary - } - , UI.simpleButton - { label = "Fine Tune" - , handleClick = SetPracticeMode FineTuneMode - , classes = [ "flex-1", "rounded-l-none" ] - , color = - if model.practiceMode == FineTuneMode then - UI.Primary - - else - UI.Secondary - } - ] - ] - - -openPreferences : Html Msg -openPreferences = - button - [ class "w-48 h-48 absolute left-0 top-0 z-40" - , onClick (SetView Preferences) - ] - [ Icon.cog ] - - -closePreferences : Html Msg -closePreferences = - button - [ class "w-48 h-48 absolute right-0 top-0 z-10" - , onClick (SetView Practice) - ] - [ Icon.close ] - - -preferences : Model -> Html Msg -preferences model = - div [ class "pt-10 pb-20 px-10" ] - [ closePreferences - , Tempo.render - { tempo = model.tempo - , handleInput = SetTempo - } - , case model.practiceMode of - KeyMode -> - keyCheckboxes model - - FineTuneMode -> - div [] - [ inversionCheckboxes model.whitelistedInversions - , chordTypeCheckboxes model.whitelistedChordTypes - ] - ] - - -practice : Model -> Html Msg -practice model = - let - ( handleClick, buttonText ) = - if model.isPaused then - ( Play, "Press to practice" ) - - else - ( Pause, "" ) - in - div [] - [ openPreferences - , UI.overlayButton - { label = buttonText - , handleClick = handleClick - , isVisible = model.isPaused - } - , Piano.render - { highlight = model.selectedChord |> Maybe.andThen Theory.notesForChord |> Maybe.withDefault [] - , start = model.firstNote - , end = model.lastNote - } - ] - - -view : Model -> Html Msg +view : State.Model -> Html State.Msg view model = case model.view of - Preferences -> - preferences model + State.Preferences -> + Preferences.render model + + State.Practice -> + Practice.render model - Practice -> - practice model + State.Overview -> + Overview.render model -{-| For now, I'm just dumping things onto the page to sketch ideas. --} main = Browser.element - { init = \() -> ( init, Cmd.none ) + { init = \() -> ( State.init, Cmd.none ) , subscriptions = subscriptions - , update = update + , update = State.update , view = view } diff --git a/website/sandbox/learnpianochords/src/Misc.elm b/website/sandbox/learnpianochords/src/Misc.elm index 52f957ad528f..288d7a825f4b 100644 --- a/website/sandbox/learnpianochords/src/Misc.elm +++ b/website/sandbox/learnpianochords/src/Misc.elm @@ -45,3 +45,15 @@ find pred xs = x :: _ -> Just x + + +{-| Return the number of milliseconds that elapse during an interval in a +`target` bpm. +-} +bpmToMilliseconds : Int -> Int +bpmToMilliseconds target = + let + msPerMinute = + 1000 * 60 + in + round (toFloat msPerMinute / toFloat target) diff --git a/website/sandbox/learnpianochords/src/Overview.elm b/website/sandbox/learnpianochords/src/Overview.elm new file mode 100644 index 000000000000..432477aa3bb9 --- /dev/null +++ b/website/sandbox/learnpianochords/src/Overview.elm @@ -0,0 +1,11 @@ +module Overview exposing (render) + +import Html exposing (..) +import Html.Attributes exposing (..) +import Html.Events exposing (..) +import State + + +render : State.Model -> Html State.Msg +render model = + div [] [ text "Hello, Overview" ] diff --git a/website/sandbox/learnpianochords/src/Practice.elm b/website/sandbox/learnpianochords/src/Practice.elm new file mode 100644 index 000000000000..229f019aa030 --- /dev/null +++ b/website/sandbox/learnpianochords/src/Practice.elm @@ -0,0 +1,44 @@ +module Practice exposing (render) + +import Html exposing (..) +import Html.Attributes exposing (..) +import Html.Events exposing (..) +import Icon +import Piano +import State +import Theory +import UI + + +openPreferences : Html State.Msg +openPreferences = + button + [ class "w-48 h-48 absolute left-0 top-0 z-40" + , onClick (State.SetView State.Preferences) + ] + [ Icon.cog ] + + +render : State.Model -> Html State.Msg +render model = + let + ( handleClick, buttonText ) = + if model.isPaused then + ( State.Play, "Press to practice" ) + + else + ( State.Pause, "" ) + in + div [] + [ openPreferences + , UI.overlayButton + { label = buttonText + , handleClick = handleClick + , isVisible = model.isPaused + } + , Piano.render + { highlight = model.selectedChord |> Maybe.andThen Theory.notesForChord |> Maybe.withDefault [] + , start = model.firstNote + , end = model.lastNote + } + ] diff --git a/website/sandbox/learnpianochords/src/Preferences.elm b/website/sandbox/learnpianochords/src/Preferences.elm new file mode 100644 index 000000000000..c0288e1265e7 --- /dev/null +++ b/website/sandbox/learnpianochords/src/Preferences.elm @@ -0,0 +1,141 @@ +module Preferences exposing (render) + +import Html exposing (..) +import Html.Attributes exposing (..) +import Html.Events exposing (..) +import Icon +import State +import Tempo +import Theory +import UI + + +selectKey : + State.Model + -> + { relativeMajor : Theory.Key + , relativeMinor : Theory.Key + } + -> Html State.Msg +selectKey model { relativeMajor, relativeMinor } = + let + active key = + List.member key model.whitelistedKeys + + buttonLabel major minor = + Theory.viewKey major ++ ", " ++ Theory.viewKey minor + in + div [ class "flex pt-0" ] + [ UI.textToggleButton + { label = buttonLabel relativeMajor relativeMinor + , handleClick = State.ToggleKey relativeMinor + , classes = [ "flex-1" ] + , toggled = active relativeMinor || active relativeMajor + } + ] + + +chordTypeCheckboxes : List Theory.ChordType -> Html State.Msg +chordTypeCheckboxes chordTypes = + ul [] + (Theory.allChordTypes + |> List.map + (\chordType -> + li [] + [ label [] [ text (Theory.chordTypeName chordType) ] + , input + [ type_ "checkbox" + , onClick (State.ToggleChordType chordType) + , checked (List.member chordType chordTypes) + ] + [] + ] + ) + ) + + +inversionCheckboxes : List Theory.ChordInversion -> Html State.Msg +inversionCheckboxes inversions = + ul [] + (Theory.allInversions + |> List.map + (\inversion -> + li [] + [ label [] [ text (Theory.inversionName inversion) ] + , input + [ type_ "checkbox" + , onClick (State.ToggleInversion inversion) + , checked (List.member inversion inversions) + ] + [] + ] + ) + ) + + +keyCheckboxes : State.Model -> Html State.Msg +keyCheckboxes model = + let + majorKey pitchClass = + { pitchClass = pitchClass, mode = Theory.MajorMode } + + minorKey pitchClass = + { pitchClass = pitchClass, mode = Theory.MinorMode } + + circleOfFifths = + [ ( Theory.C, Theory.A ) + , ( Theory.G, Theory.E ) + , ( Theory.D, Theory.B ) + , ( Theory.A, Theory.F_sharp ) + , ( Theory.E, Theory.C_sharp ) + , ( Theory.B, Theory.G_sharp ) + , ( Theory.F_sharp, Theory.D_sharp ) + , ( Theory.C_sharp, Theory.A_sharp ) + , ( Theory.G_sharp, Theory.F ) + , ( Theory.D_sharp, Theory.C ) + , ( Theory.A_sharp, Theory.G ) + , ( Theory.F, Theory.D ) + ] + in + div [] + [ h2 [ class "text-gray-500 text-center pt-10 text-5xl" ] [ text "Select keys" ] + , ul [] + (circleOfFifths + |> List.map + (\( major, minor ) -> + selectKey model + { relativeMajor = majorKey major + , relativeMinor = minorKey minor + } + ) + ) + ] + + +closePreferences : Html State.Msg +closePreferences = + button + [ class "w-48 h-48 absolute right-0 top-0 z-10" + , onClick (State.SetView State.Practice) + ] + [ Icon.close ] + + +render : State.Model -> Html State.Msg +render model = + div [ class "pt-10 pb-20 px-10" ] + [ closePreferences + , Tempo.render + { tempo = model.tempo + , handleInput = State.SetTempo + } + , case model.practiceMode of + State.KeyMode -> + keyCheckboxes model + + State.FineTuneMode -> + div [] + [ inversionCheckboxes model.whitelistedInversions + , chordTypeCheckboxes model.whitelistedChordTypes + ] + ] diff --git a/website/sandbox/learnpianochords/src/State.elm b/website/sandbox/learnpianochords/src/State.elm new file mode 100644 index 000000000000..2588d8566ff1 --- /dev/null +++ b/website/sandbox/learnpianochords/src/State.elm @@ -0,0 +1,271 @@ +module State exposing (..) + +import Random +import Random.List +import Theory + + +type Msg + = NextChord + | NewChord Theory.Chord + | Play + | Pause + | SetTempo String + | ToggleInversion Theory.ChordInversion + | ToggleChordType Theory.ChordType + | TogglePitchClass Theory.PitchClass + | ToggleKey Theory.Key + | DoNothing + | SetPracticeMode PracticeMode + | SelectAllKeys + | DeselectAllKeys + | SetView View + + +type View + = Preferences + | Practice + | Overview + + +{-| Control the type of practice you'd like. +-} +type PracticeMode + = KeyMode + | FineTuneMode + + +type alias Model = + { whitelistedChords : List Theory.Chord + , whitelistedChordTypes : List Theory.ChordType + , whitelistedInversions : List Theory.ChordInversion + , whitelistedPitchClasses : List Theory.PitchClass + , whitelistedKeys : List Theory.Key + , selectedChord : Maybe Theory.Chord + , isPaused : Bool + , tempo : Int + , firstNote : Theory.Note + , lastNote : Theory.Note + , practiceMode : PracticeMode + , view : View + } + + +{-| The initial state for the application. +-} +init : Model +init = + let + ( firstNote, lastNote ) = + ( Theory.C3, Theory.C6 ) + + inversions = + Theory.allInversions + + chordTypes = + Theory.allChordTypes + + pitchClasses = + Theory.allPitchClasses + + keys = + [ { pitchClass = Theory.C, mode = Theory.MajorMode } ] + + practiceMode = + KeyMode + in + { practiceMode = practiceMode + , whitelistedChords = + case practiceMode of + KeyMode -> + keys |> List.concatMap Theory.chordsForKey + + FineTuneMode -> + Theory.allChords + { start = firstNote + , end = lastNote + , inversions = inversions + , chordTypes = chordTypes + , pitchClasses = pitchClasses + } + , whitelistedChordTypes = chordTypes + , whitelistedInversions = inversions + , whitelistedPitchClasses = pitchClasses + , whitelistedKeys = keys + , selectedChord = Nothing + , isPaused = True + , tempo = 20 + , firstNote = firstNote + , lastNote = lastNote + , view = Preferences + } + + +{-| Now that we have state, we need a function to change the state. +-} +update : Msg -> Model -> ( Model, Cmd Msg ) +update msg model = + case msg of + DoNothing -> + ( model, Cmd.none ) + + SetPracticeMode practiceMode -> + ( { model + | practiceMode = practiceMode + , isPaused = True + } + , Cmd.none + ) + + SetView x -> + ( { model + | view = x + , isPaused = True + } + , Cmd.none + ) + + SelectAllKeys -> + ( { model + | whitelistedKeys = Theory.allKeys + , whitelistedChords = + Theory.allKeys |> List.concatMap Theory.chordsForKey + } + , Cmd.none + ) + + DeselectAllKeys -> + ( { model + | whitelistedKeys = [] + , whitelistedChords = [] + } + , Cmd.none + ) + + NewChord chord -> + ( { model | selectedChord = Just chord } + , Cmd.none + ) + + NextChord -> + ( model + , Random.generate + (\x -> + case x of + ( Just chord, _ ) -> + NewChord chord + + ( Nothing, _ ) -> + DoNothing + ) + (Random.List.choose model.whitelistedChords) + ) + + Play -> + ( { model | isPaused = False } + , Cmd.none + ) + + Pause -> + ( { model | isPaused = True } + , Cmd.none + ) + + ToggleChordType chordType -> + let + chordTypes = + if List.member chordType model.whitelistedChordTypes then + List.filter ((/=) chordType) model.whitelistedChordTypes + + else + chordType :: model.whitelistedChordTypes + in + ( { model + | whitelistedChordTypes = chordTypes + , whitelistedChords = + Theory.allChords + { start = model.firstNote + , end = model.lastNote + , inversions = model.whitelistedInversions + , chordTypes = chordTypes + , pitchClasses = model.whitelistedPitchClasses + } + } + , Cmd.none + ) + + ToggleInversion inversion -> + let + inversions = + if List.member inversion model.whitelistedInversions then + List.filter ((/=) inversion) model.whitelistedInversions + + else + inversion :: model.whitelistedInversions + in + ( { model + | whitelistedInversions = inversions + , whitelistedChords = + Theory.allChords + { start = model.firstNote + , end = model.lastNote + , inversions = inversions + , chordTypes = model.whitelistedChordTypes + , pitchClasses = model.whitelistedPitchClasses + } + } + , Cmd.none + ) + + TogglePitchClass pitchClass -> + let + pitchClasses = + if List.member pitchClass model.whitelistedPitchClasses then + List.filter ((/=) pitchClass) model.whitelistedPitchClasses + + else + pitchClass :: model.whitelistedPitchClasses + in + ( { model + | whitelistedPitchClasses = pitchClasses + , whitelistedChords = + Theory.allChords + { start = model.firstNote + , end = model.lastNote + , inversions = model.whitelistedInversions + , chordTypes = model.whitelistedChordTypes + , pitchClasses = pitchClasses + } + } + , Cmd.none + ) + + ToggleKey key -> + let + keys = + if List.member key model.whitelistedKeys then + List.filter ((/=) key) model.whitelistedKeys + + else + key :: model.whitelistedKeys + in + ( { model + | whitelistedKeys = keys + , whitelistedChords = + keys |> List.concatMap Theory.chordsForKey + } + , Cmd.none + ) + + SetTempo tempo -> + ( { model + | tempo = + case String.toInt tempo of + Just x -> + x + + Nothing -> + model.tempo + } + , Cmd.none + ) |