[ << Backend ]	[Top][Contents][Index][ ? ]			[ Scheme functions >> ]
[ < balloon-interface ]		[  Up : Graphical Object Interfaces ]	[ bass-figure-alignment-interface > ]

3.2.9 bar-line-interface

Print a special bar symbol. It replaces the regular bar symbol with a special symbol. The argument bartype is a string which specifies the kind of bar line to print.

The list of allowed glyphs and predefined bar lines can be found in ‘scm/bar-line.scm’.

gap is used for the gaps in dashed bar lines.

User settable properties:

allow-span-bar (boolean)

If false, no inter-staff bar line will be created below this bar line.

bar-extent (pair of numbers)

The Y-extent of the actual bar line. This may differ from Y-extent because it does not include the dots in a repeat bar line.

gap (dimension, in staff space)

Size of a gap in a variable symbol.

glyph (string)

A string determining what ‘style’ of glyph is typeset. Valid choices depend on the function that is reading this property.

In combination with (span) bar lines, it is a string resembling the bar line appearance in ASCII form.

glyph-name (string)

The glyph name within the font.

In the context of (span) bar lines, glyph-name represents a processed form of glyph, where decisions about line breaking etc. are already taken.

hair-thickness (number)

Thickness of the thin line in a bar line.

kern (dimension, in staff space)

Amount of extra white space to add. For bar lines, this is the amount of space after a thick line.

rounded (boolean)

Decide whether lines should be drawn rounded or not.

thin-kern (number)

The space after a hair-line in a bar line.

thick-thickness (number)

Bar line thickness, measured in line-thickness.

Internal properties:

has-span-bar (pair)

A pair of grobs containing the span bars to be drawn below and above the staff. If no span bar is in a position, the respective element is set to #f.

This grob interface is used in the following graphical object(s): BarLine and SpanBar.

---

[ << Backend ]	[Top][Contents][Index][ ? ]			[ Scheme functions >> ]
[ < balloon-interface ]		[  Up : Graphical Object Interfaces ]	[ bass-figure-alignment-interface > ]

<< Back to Documentation Index

Internals Reference v2.18.2 (stable-branch).