[EMAIL PROTECTED] writes:
> On Fri, Mar 15, 2002 at 02:24:26PM +0100, Han-Wen Nienhuys wrote:
>
> > /* Hmm. TODO: This should be set in grob-description.scm, but
> > side-positioning of consecutive brackets only seems to work if
> > direction is +1 within the engraver */
>
> I should explain my confusion about directions ...
>
> Problem: For 'mixed' style pedals, like Ped.______, the horizontal line
> should be shortened by the extent of the Ped. text. To obtain this
> extent, I set the parent of the _____ spanner to be the Ped. text item.
>
> The direction of _____| (PianoPedalBracket) grobs should be -1, as it is
> a text spanner (+1 produces an upside down bracket). However, if the
> direction of the ____ is set to -1 when it is created by the engraver,
> then the output becomes
>
> Ped.
> . . . . . . (<- the imaginary line of the PianoPedalLineSpanner)
> ______| (<- the actual pedal)
>
> instead of
>
> Ped.______|
> . . . . . .
>
> Is this a consequence of the Ped. being the bracket's parent? Is there a
> better way to obtain the size of the text within the line's
> brew_molecule?
I think that there might be some offset callback confusing
things. Side_position::aligned_on_self and
Side_position::aligned_on_parent both use 'direction to shift around
the grob. I would suggest that you remove them both, and do the Y
aligning by hand (use Molecule::align_to), as it is less confusing and
more robust. For the X-alignment, make the bracket be bound on the
left side by the Ped sign.
> {left,right}-widen). The amount of stretching is controlled by
> edge-width, which is hardcoded at the moment to half staff space, but
> I'll work on getting this customisable.
Ok.
(if you feel inclined, you could add support for left,right-widen to
the tuplet bracket as well. )
--
Han-Wen Nienhuys | [EMAIL PROTECTED] | http://www.cs.uu.nl/~hanwen/
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