Optional
options: StemOptionsStatic
DEBUGTo enable logging for this class. Set VexFlow.Stem.DEBUG
to true
.
Returns the CSS compatible font string for the text font.
Provide a CSS compatible font string (e.g., 'bold 16px Arial') that will be applied to text (not glyphs).
a CSS font-size string (e.g., '18pt', '12px', '1em').
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').
the font size in px
.
the font size in pt
.
a CSS font-style string (e.g., 'italic').
Set the font style.
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 the font weight.
Static
CATEGORYStatic
DOWNStatic
HEIGHTStatic
UPStatic
WIDTHAdds 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.
Apply the element style to context
.
Validate and return the rendering context.
Return the element attributes.
Get the boundingBox.
Return the context, such as an SVGContext or CanvasContext object.
Get the element style used for rendering.
Render the element text.
Restore the style of context
.
Set the context to an SVGContext or CanvasContext object
Optional
context: RenderContextSet 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.
Optional
font: string | FontInfois 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).
Optional
size: string | numbera string specifying the font size and unit (e.g., '16pt'), or a number (the unit is assumed to be 'pt').
Optional
weight: string | numberis a string (e.g., 'bold', 'normal') or a number (100, 200, ... 900).
Optional
style: stringis 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.
Set the element & associated children style used for rendering.
Optional
options: StemOptionsSet 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();
Static
getStatic
measureStatic
set
Element implements a generic base class for VexFlow, with implementations of general functions and properties that can be inherited by all VexFlow elements.
The Element handles style and font properties for the Element and any child elements, along with working with the Registry to create unique ids.
The
text
is a series of unicode characters (including SMuFL codes). ThetextFont
property contains information required to style the text (i.e., font family, size, weight, and style). This font family is a comma separated list of fonts. The methodmeasureText
calculates thetextMetrics
,boundingBox
,height
andwidth
of thetext
. The methodrenderText(...)
will render the text using the provided context and coordinates, takingxShift
andyShift
into account.