Class ChordSymbol

ChordSymbol is a modifier that creates a chord symbol above/below a chord. As a modifier, it is attached to an existing note.

Hierarchy

Constructors

Properties

Accessors

Methods

Constructors

Properties

DEBUG: boolean = false
HorizontalJustify: typeof ChordSymbolHorizontalJustify = ChordSymbolHorizontalJustify
HorizontalJustifyString: Record<string, ChordSymbolHorizontalJustify> = ...
VerticalJustify: typeof ChordSymbolVerticalJustify = ChordSymbolVerticalJustify
VerticalJustifyString: Record<string, ChordSymbolVerticalJustify> = ...
glyphs: Record<string, {
    code: string;
}> = ...
symbolModifiers: typeof SymbolModifiers = SymbolModifiers
symbolTypes: typeof SymbolTypes = SymbolTypes

Accessors

  • get font(): string
  • Returns the CSS compatible font string for the text font.

    Returns string

  • set font(f): 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 fontInfo(): Required<FontInfo>
  • Return a copy of the current FontInfo object.

    Returns Required<FontInfo>

  • set fontInfo(fontInfo): void
  • Parameters

    Returns void

  • get fontSize(): string
  • Returns string

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

  • set fontSize(size): 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): void
  • 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): void
  • Parameters

    • weight: string | number

    Returns void

  • get subscriptOffset(): number
  • Returns number

  • get superscriptOffset(): number
  • The offset is specified in em. Scale this value by the font size in pixels.

    Returns number

  • get CATEGORY(): string
  • Modifiers category string. Every modifier has a different category. The ModifierContext uses this to determine the type and order of the modifiers.

    Returns string

  • get NO_TEXT_FORMAT(): boolean
  • Returns boolean

  • set NO_TEXT_FORMAT(val): void
  • Currently unused: Globally turn off text formatting, if the built-in formatting does not work for your font.

    Parameters

    • val: boolean

    Returns void

  • get Position(): typeof ModifierPosition
  • Modifiers can be positioned almost anywhere, relative to a note.

    Returns typeof ModifierPosition

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

  • get TEXT_FONT(): Required<FontInfo>
  • Default text font. Choose a font family that works well with the current music engraving font. Element.TEXT_FONT.

    Returns Required<FontInfo>

  • get engravingFontResolution(): number
  • Returns number

  • get kerningOffset(): number
  • Returns number

  • get lowerKerningText(): string[]
  • Returns string[]

  • get minPadding(): number
  • Returns number

  • get spacingBetweenBlocks(): number
  • Returns number

  • get subscriptOffset(): number
  • Returns number

  • get superSubRatio(): number
  • Returns number

  • get superscriptOffset(): number
  • Returns number

  • get upperKerningText(): string[]
  • Returns string[]

Methods

  • Adds a child Element 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 ChordSymbol

  • Add a glyph block.

    Parameters

    • glyph: string
    • params: any = {}

    Returns ChordSymbol

  • Add a glyph for each character in 'text'. If the glyph is not available, use text from the font. e.g. addGlyphOrText('(+5#11)') will use text for the '5' and '11', and glyphs for everything else.

    Parameters

    • text: string
    • params: any = {}

    Returns ChordSymbol

  • Add a glyph block with superscript modifier.

    Parameters

    • glyph: string

    Returns ChordSymbol

  • Add a line of the given width, used as a continuation of the previous symbol in analysis, or lyrics, etc.

    Parameters

    • width: number
    • params: any = {}

    Returns ChordSymbol

  • Add a symbol to this chord, could be text, glyph or line.

    Parameters

    • parameters: any

    Returns ChordSymbol

  • Add a text block.

    Parameters

    • text: string
    • parameters: any = {}

    Returns ChordSymbol

  • Add a text block with subscript modifier.

    Parameters

    • text: string

    Returns ChordSymbol

  • Add a text block with superscript modifier.

    Parameters

    • text: string

    Returns ChordSymbol

  • Used in draw() to check and get the attached note (StaveNote, TabNote, etc.). Also verifies that the index is valid.

    Returns Note

  • Check and get note index, which is a specific note in a chord.

    Returns number

  • Render text and glyphs above/below the note.

    Returns void

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

    Returns void

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

    Parameters

    • name: string

    Returns any

  • Get the css string describing this Element's text font. e.g., 'bold 10pt Arial'.

    Returns string

  • 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.

  • Returns number

  • Get note index, which is a specific note in a chord.

    Returns undefined | number

  • Do some basic kerning so that letter chords like 'A' don't have the extensions hanging off to the right.

    Parameters

    • j: number

    Returns number

  • Returns boolean

  • Return associated SVGElement.

    Parameters

    • suffix: string = ''

    Returns undefined | SVGElement

  • ChordSymbol allows multiple blocks so we can mix glyphs and font text. Each block can have its own vertical orientation.

    Parameters

    • params: any = {}

    Returns ChordSymbolBlock

  • Returns number

  • Get modifier widths.

    Returns number

  • Get shift modifier x

    Returns number

  • Parameters

    • text: string

    Returns number

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

    Parameters

    • className: string

    Returns boolean

  • Return the rendered status.

    Returns boolean

  • Reset the text font to the style indicated by the static TEXT_FONT property. Subclasses can call this to initialize textFont for the first time.

    Returns void

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

    Parameters

    • Optional f: 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 (one of size, weight, or style must also be provided).

    • Optional size: string | number

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

    • Optional weight: string | number

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

    • Optional style: string

      is a string (e.g., 'italic', 'normal').

      See: Element.

    Returns ChordSymbol

  • Set horizontal justification.

    Parameters

    • hj: string | number

    Returns ChordSymbol

  • Set the element style used to render.

    Example:

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

    Note: If the element draws additional sub-elements (ie.: 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.draw();

    or using drawWithStyle:

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

    Parameters

    Returns ChordSymbol

  • Set vertical position of text (above or below stave).

    Parameters

    • vj: string | number

    Returns ChordSymbol

  • Returns void

  • Returns void

  • Estimate the width of the whole chord symbol, based on the sum of the widths of the individual blocks. Estimate how many lines above/below the staff we need.

    Parameters

    Returns boolean

  • Parameters

    Returns number

  • Parameters

    Returns number

  • Parameters

    Returns number

  • Parameters

    Returns boolean