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Arpeggio

Arpeggio grobs are created by: Arpeggio_engraver and Span_arpeggio_engraver

font-interface

Any symbol that is typeset through fixed sets of glyphs (ie. fonts)

font-style (symbol):

a precooked set of font definitions, eg. finger volta timesig mark script large Large dynamic. Default value: (unset)

font-series (symbol):

partial font definition: medium, bold. Default value: (unset)

font-shape (symbol):

partial font definition: upright or italic. Default value: (unset)

font-family (symbol):

partial font definition: music roman braces dynamic math ... Default value: (unset)

font-name (symbol):

partial font definition: base name of font file FIXME: should override other partials. Default value: (unset)

font-design-size (number):

partial font definition: exact font size in points FIXME: should override font-relative-size. Default value: (unset)

font-relative-size (number):

partial font definition: the relative size compared the `normal' size. 0 is style-sheet's normal size, -1 is smaller, +1 is bigger, -1 is smaller. Default value: (unset)

side-position-interface

Position a victim object (this one) next to other objects (the support). #'direction = where to put the victim object (left or right?)

side-support (list):

the support, a list of grobs. Default value: (unset)

direction-source (grob (GRaphical OBject)):

in case side-relative-direction is set, which grob to get the direction from . Default value: (unset)

direction (direction):

up or down, left or right?. Default value: -1

side-relative-direction (direction):

if set: get the direction from a different object, and multiply by this. Default value: (unset)

minimum-space (number):

minimum distance that the victim should move (after padding).

FIXME: also pair? (cons LEFT RIGHT)

Default value: (unset)

padding (number):

add this much extra space between objects that are next to each other. Default value: (unset)

self-alignment-X (number):

real number: -1 = left aligned, 0 = center, 1 right-aligned in X direction.

Set to an grob pointer, if you want that grob to be the center. In this case, the center grob should have this object as a reference point. . Default value: (unset)

self-alignment-Y (number):

like self-alignment-X but for Y axis. Default value: (unset)

arpeggio-interface

Functions and settings for drawing an arpeggio symbol (a wavy line left to noteheads.

stems (list):

list of stem objects, corresponding to the notes that the arpeggio has to be before. Default value: (unset)

general-grob-interface

All grobs support this

X-offset-callbacks (list):

list of functions, each taking an grob and axis argument. The function determine the position relative to this grob's parent. The last one in the list is called first. Default value: '(#<primitive-procedure Side_position_interface::aligned_side>)

Y-offset-callbacks (list):

see X-offset-callbacks. Default value: '(#<primitive-procedure Staff_symbol_referencer::callback>)

X-extent-callback (procedure):

procedure taking an grob and axis argument, returning a number-pair. The return value is the extent of the grob. Default value: #<primitive-procedure Arpeggio::width_callback>

Y-extent-callback (procedure):

see X-extent-callback. Default value: #f

molecule-callback (procedure):

Function taking grob as argument, returning a Scheme encoded Molecule. Default value: #<primitive-procedure Arpeggio::brew_molecule>

font-relative-size (number):

partial font definition: the relative size compared the `normal' size. 0 is style-sheet's normal size, -1 is smaller, +1 is bigger, -1 is smaller. Default value: (unset)

extra-offset (pair of numbers):

pair of reals (a cons) forcing an extra offset before outputting. extra-offset is added just before `printing' the grob, so the typesetting engine is completely oblivious to it.

Default value: (unset)

interfaces (list):

list of symbols indicating the interfaces supported by this object. Is initialized from the meta field. Default value: (unset)

dependencies (list):

list of score-grob pointers that indicate who to compute first for certain global passes. Default value: (unset)

no-spacing-rods (boolean):

read from grobs: boolean that makes Separation_item ignore this item (MOVE ME TO ITEM). Default value: (unset)

extra-extent-X (pair of numbers):

enlarge in X dimension by this much, measured in staff space. Default value: (unset)

extra-extent-Y (pair of numbers):

see extra-extent-Y. Default value: (unset)

minimum-extent-X (pair of numbers):

minimum size in X dimension, measured in staff space. Default value: (unset)

minimum-extent-Y (pair of numbers):

see minimum-extent-Y. Default value: (unset)

origin (input location):

location in input file of the definition. Default value: (unset)

transparent (boolean):

This is almost the same as setting molecule-callback to #f, but this retains the dimensions of this grob, which means that you can erase grobs individually. . Default value: (unset)

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Copyright (c) 1997--2001 Han-Wen Nienhuys and Jan Nieuwenhuizen.

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