KeyboardController

final class KeyboardController : UIViewController

extension KeyboardController: ControllerConfiguration

extension KeyboardController: Keyboard

Controller for the keyboard view. Creates the individual Key views and handles touch event detection within them. The controller creates an entire 108 keyboard which it then shows only a part of on the screen. The keyboard can be shifted up/down by octaves or by sliding via touch (if enabled).

isMuted
Flag indicating that the audio is currently muted, and playing a note will not generate any sound
Declaration
Swift

var isMuted: Bool { get set }
viewDidLoad()
Initialize controller with view loaded
Declaration
Swift

override func viewDidLoad()
viewDidLayoutSubviews()
Redraw keyboard after layout change.
Declaration
Swift

override func viewDidLayoutSubviews()

Configuration


                    
                    
                    establishConnections(_:)

Establish connections with other components

Declaration

Swift

func establishConnections(_ router: ComponentContainer)

Parameters


                                router

the container holding the other components

Touch Processing


                    
                    
                    touchesBegan(_:with:)

Begin processing a touch event for the keyboard

Declaration

Swift

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?)

Parameters

`touches`	the touch events that started
`event`	the event that spawned the touches


                    
                    
                    touchesMoved(_:with:)

Update touch events for the keyboard

Declaration

Swift

override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?)

Parameters

`touches`	the touch events that moved
`event`	the event that spawned the touches


                    
                    
                    touchesEnded(_:with:)

Complete touch events for the keyboard

Declaration

Swift

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?)

Parameters

`touches`	the touch events that stopped
`event`	the event that spawned the touches


                    
                    
                    touchesCancelled(_:with:)

Cancel touch events for the keyboard

Declaration

Swift

override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?)

Parameters

`touches`	the touch events that stopped
`event`	the event that spawned the touches

Keyboard Protocol


                    
                    
                    noteIsOn(note:)

Notification that the given note is being played (eg by MIDI event)

Declaration

Swift

func noteIsOn(note: UInt8)

Parameters


                                note

the MIDI note value being played


                    
                    
                    noteIsOff(note:)

Notification that the given note is not being played (eg by MIDI event)

Declaration

Swift

func noteIsOff(note: UInt8)

Parameters


                                note

the MIDI note value not being played

lowestNote
The current lowest MIDI note of the keyboard (mutable)
Declaration
Swift

var lowestNote: Note { get set }
highestNote
The current highest MIDI note of the keyboard (read-only)
Declaration
Swift

var highestNote: Note { get }
releaseAllKeys()
Demand that all keys stop playing audio.
Declaration
Swift

func releaseAllKeys()