MIDIPianoRollView

open class MIDIPianoRollView : UIScrollView, MIDIPianoRollCellViewDelegate

Piano roll with customisable row count, row range, beat count and editable note cells.

  • Piano roll bars.

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    Declaration

    Swift

    public enum Bars

  • Piano roll keys.

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    Declaration

    Swift

    public enum Keys

  • All grid lines for line with and color customisation.

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    Declaration

    Swift

    public struct GridLine

  • Zoom level of the piano roll that showing the mininum amount of beat.

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    Declaration

    Swift

    public enum ZoomLevel : Int

  • All notes in the piano roll.

    Declaration

    Swift

    public var notes: [MIDIPianoRollNote] { get set }

  • Time signature of the piano roll. Defaults to 4/4.

    Declaration

    Swift

    public var timeSignature: <<error type>> { get set }

  • Bar count of the piano roll. Defaults to auto.

    Declaration

    Swift

    public var bars: MIDIPianoRollView.Bars { get set }

  • Rendering note range of the piano roll. Defaults all MIDI notes, from 0 to 127.

    Declaration

    Swift

    public var keys: MIDIPianoRollView.Keys { get set }

  • Current ZoomLevel of the piano roll.

    Declaration

    Swift

    public var zoomLevel: MIDIPianoRollView.ZoomLevel

  • Minimum amount of the zoom level.

    Declaration

    Swift

    public var minZoomLevel: MIDIPianoRollView.ZoomLevel

  • Maximum amount of the zoom level.

    Declaration

    Swift

    public var maxZoomLevel: MIDIPianoRollView.ZoomLevel

  • Speed of zooming by pinch gesture.

    Declaration

    Swift

    public var zoomSpeed: CGFloat

  • Maximum width of a beat on the bar, max zoomed in.

    Declaration

    Swift

    public var maxBeatWidth: CGFloat

  • Minimum width of a beat on the bar, max zoomed out.

    Declaration

    Swift

    public var minBeatWidth: CGFloat

  • Current with of a beat on the measure.

    Declaration

    Swift

    public var beatWidth: CGFloat

  • Fixed height of the bar on the top.

    Declaration

    Swift

    public var measureHeight: CGFloat

  • Fixed left hand side row width on the piano roll.

    Declaration

    Swift

    public var rowWidth: CGFloat

  • Current height of a row on the piano roll.

    Declaration

    Swift

    public var rowHeight: CGFloat

  • Maximum height of a row on the piano roll.

    Declaration

    Swift

    public var maxRowHeight: CGFloat

  • Minimum height of a row on the piano roll.

    Declaration

    Swift

    public var minRowHeight: CGFloat

  • Label configuration for the measure beat labels.

    Declaration

    Swift

    public var measureLabelConfig: UILabel

  • Delegate that informs about cell changes.

    Declaration

    Swift

    public weak var pianoRollDelegate: MIDIPianoRollViewDelegate?

  • Enables/disables the edit mode. Defaults false.

    Declaration

    Swift

    public var isEditing: Bool { get set }

  • Enables/disables the zooming feature. Defaults true.

    Declaration

    Swift

    public var isZoomingEnabled: Bool { get set }

  • Enables/disables the measure rendering. Defaults true.

    Declaration

    Swift

    public var isMeasureEnabled: Bool { get set }

  • Enables/disables the multiple note cell editing at once. Defaults false.

    Declaration

    Swift

    public var isMultipleEditing: Bool { get set }

  • Layer that cells drawn on. Lowest layer.

    Declaration

    Swift

    public private(set) var cellLayer: UIView

  • Layer that grid drawn on. Middle low layer.

    Declaration

    Swift

    public private(set) var gridLayer: UIView

  • Layer that rows drawn on. Middle top layer.

    Declaration

    Swift

    public private(set) var rowLayer: UIView

  • Layer that measure drawn on. Top most layer.

    Declaration

    Swift

    public var measureLayer: UIView

Init

  • Initilizes the piano roll with a frame.

    Declaration

    Swift

    public override init(frame: CGRect)

    Parameters

    frame

    Frame of the view.

  • Initilizes the piano roll with a coder.

    Declaration

    Swift

    public required init?(coder aDecoder: NSCoder)

    Parameters

    aDecoder

    Coder.

Lifecycle

  • Undocumented

    Declaration

    Swift

    open override func layoutSubviews()

  • Undocumented

    Declaration

    Swift

    open override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView?

  • Removes each component and creates them again.

    Declaration

    Swift

    public func reload()

MIDIPianoRollViewCellDelegate