On 03/08/12 20:40, Marc Hohl wrote:
> Hello list,
>
> I tried to simplify the make-...-bar-line functions recently
> defined in scm/bar-line.scm.
>
> However, if I replace the definition
>
> (define (make-simple-bar-line grob extent thickness) (let ((blot
> (if rounded (layout-blot-diameter grob) 0)))
>
> (ly:round-filled-box (cons 0 thickness) extent blot)))
>
> with
>
> (define (make-simple-bar-line grob extent thickness) (let* ((extent
> (ly:grob-property grob 'bar-extent)) (blot (if rounded
> (layout-blot-diameter grob) 0)))
;; this looks odd, shouldn't the syntax be (if (condition) (then-bit)
;; (else-bit)) ?
;;
>
> (ly:round-filled-box (cons 0 thickness) extent blot)))
>
> (I know that the argument 'extent' is redundant; I'll try to reduce
> all arguments to 'grob' and calculate the rest from inside the
> rooutine to make extensions easier...)
>
> then I get:
>
> Programmierfehler: vertical alignment called before line breaking
> Fortsetzung, die Daumen drücken
>
> when I try to compile a score with a span bar:
>
> \score { \new StaffGroup << \new Staff { \new Voice { c c c c } }
> \new Staff { \new Voice { c c c c } }
>>>
> }
>
> Can someone explain to me why this happens?
>
> TIA,
>
> Marc
>
>
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