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    Class Articulation

    Articulations and Accents are modifiers that can be attached to notes. The complete list of articulations is available in tables.ts under VexFlow.articulationCodes.

    See tests/articulation_tests.ts for usage examples.

    Hierarchy (View Summary)

    Index

    Constructors

    Properties

    _fontInfo: Required<FontInfo>
    _height: number = 0
    _text: string = ''
    _textMetrics: TextMetrics = ...
    _width: number = 0
    articulation: ArticulationStruct
    children: Element[] = []
    fontScale: number
    heightShift: number = 0
    index?: number
    metricsValid: boolean = false
    modifierContext?: ModifierContext
    note?: Note
    parent?: Element
    registry?: Registry
    rendered: boolean
    shouldDrawPointerRect: boolean
    spacingFromNextModifier: number
    style: ElementStyle = {}
    textLine: number
    type: string

    Articulation code provided to the constructor.

    x: number = 0
    xShift: number = 0
    y: number = 0
    yShift: number = 0
    DEBUG: boolean = false

    To enable logging for this class. Set VexFlow.Articulation.DEBUG to true.

    ID: number = 1000
    INITIAL_OFFSET: number = -0.5

    Accessors

    • get font(): string

      Returns the CSS compatible font string for the text font.

      Returns string

    • set font(f: string): void

      Provide a CSS compatible font string (e.g., 'bold 16px Arial') that will be applied to text (not glyphs).

      Parameters

      • f: string

      Returns void

    • get fontSize(): string

      Returns string

      a CSS font-size string (e.g., '18pt', '12px', '1em').

    • set fontSize(size: string | number): void

      The size is 1) a string of the form '10pt' or '16px', compatible with the CSS font-size property. or 2) a number, which is interpreted as a point size (i.e. 12 == '12pt').

      Parameters

      • size: string | number

      Returns void

    • get fontSizeInPixels(): number

      Returns number

      the font size in px.

    • get fontSizeInPoints(): number

      Returns number

      the font size in pt.

    • get fontStyle(): string

      Returns string

      a CSS font-style string (e.g., 'italic').

    • set fontStyle(style: string): void

      Set the font style.

      Parameters

      • style: string

      Returns void

    • get fontWeight(): string

      Returns string

      a CSS font-weight string (e.g., 'bold'). As in CSS, font-weight is always returned as a string, even if it was set as a number.

    • set fontWeight(weight: string | number): void

      Set the font weight.

      Parameters

      • weight: string | number

      Returns void

    • get PositionString(): Record<string, number>

      Returns Record<string, number>

    Methods

    • Adds a child to the Element, which lets it inherit the same style as the parent when setGroupStyle() is called.

      Examples of children are noteheads and stems. Modifiers such as Accidentals are generally not set as children.

      Note that StaveNote calls setGroupStyle() when setStyle() is called.

      Parameters

      Returns this

    • Draw the element and all its sub-elements (i.e.: Modifiers in a Stave) with the element's style (see getStyle() and setStyle())

      Returns this

    • Returns string

      a CSS font-size string (e.g., '18pt', '12px', '1em'). See Element.fontSizeInPixels or Element.fontSizeInPoints if you need to get a number for calculation purposes.

    • Check if it has a class label (An element can have multiple class labels).

      Parameters

      • className: string

      Returns boolean

    • Set an attribute such as 'id', 'class', or 'type'.

      Parameters

      • name: string
      • value: undefined | string

      Returns this

    • Set if articulation should be rendered between lines.

      Parameters

      • betweenLines: boolean = true

      Returns this

    • Set the element's text font family, size, weight, style (e.g., Arial, 10pt, bold, italic).

      This attribute does not determine the font used for musical Glyphs like treble clefs.

      Parameters

      • Optionalfont: string | FontInfo

        is 1) a FontInfo object or 2) a string formatted as CSS font shorthand (e.g., 'bold 10pt Arial') or 3) a string representing the font family (at least one of size, weight, or style must also be provided).

      • Optionalsize: string | number

        a string specifying the font size and unit (e.g., '16pt'), or a number (the unit is assumed to be 'pt').

      • Optionalweight: string | number

        is a string (e.g., 'bold', 'normal') or a number (100, 200, ... 900).

      • Optionalstyle: string

        is a string (e.g., 'italic', 'normal'). If no arguments are provided, then the font is set to the default font. Each Element subclass may specify its own default by overriding the static TEXT_FONT property.

      Returns this

    • Change the font size, while keeping everything else the same.

      Parameters

      • Optionalsize: string | number

      Returns this

    • Set the element style used to render.

      Example:

      element.setStyle({ fillStyle: 'red', strokeStyle: 'red' });
      element.drawWithStyle();

      Note: If the element draws additional sub-elements (i.e.: Modifiers in a Stave), the style can be applied to all of them by means of the context:

      element.setStyle({ fillStyle: 'red', strokeStyle: 'red' });
      element.getContext().setFillStyle('red');
      element.getContext().setStrokeStyle('red');
      element.drawWithStyle();

      or using drawWithStyle:

      element.setStyle({ fillStyle: 'red', strokeStyle: 'red' });
      element.drawWithStyle();

      Parameters

      Returns this

    • FIXME: Most of the complex formatting logic (ie: snapping to space) is actually done in .render(). But that logic belongs in this method.

      Unfortunately, this isn't possible because, by this point, stem lengths have not yet been finalized. Finalized stem lengths are required to determine the initial position of any stem-side articulation.

      This indicates that all objects should have their stave set before being formatted. It can't be an optional if you want accurate vertical positioning. Consistently positioned articulations that play nice with other modifiers won't be possible until we stop relying on render-time formatting.

      Ideally, when this function has completed, the vertical articulation positions should be ready to render without further adjustment. But the current state is far from this ideal.

      Parameters

      Returns boolean