2013/10/11 EdBeesley <edplaysdr...@gmail.com>:
> Thomas Morley-2 wrote
>> Hi,
>>
>> how about:
>>
>> \version "2.16.2"
>>
>> moreVerticalDynamicTextSpannerWhiteout =
>> \once \override DynamicTextSpanner #'stencil =
>> #(lambda (grob)
>> (let* ((stil (ly:line-spanner::print grob))
>> (x-ext (ly:stencil-extent stil X))
>> (y-ext (ly:stencil-extent stil Y)))
>> (ly:grob-set-property! grob 'whiteout #t)
>> (ly:make-stencil
>> (ly:stencil-expr stil)
>> (interval-widen x-ext 0)
>> (interval-widen y-ext 0.2))))
>>
>> \score {
>> \new GrandStaff <<
>> \new Staff
>> \relative c' {
>> c d e
>> \moreVerticalDynamicTextSpannerWhiteout
>> f \cresc c d e f \!
>> }
>> \new Staff
>> \relative c' {
>> c d e f \cresc c d e f \!
>> }
>> >>
>> }
>>
>> Could be easily turned into a music-function.
>>
>> HTH,
>> Harm
>
> That is exactly what I was after, thank you!
>
> Now when you say this could be easily turned into a music-function... could
> we assume for a second that I'm totally dumb and have no idea how to do
> this?
It would lead to:
moreVerticalDynamicTextSpannerWhiteout =
#(define-music-function (parser location adds)(pair?)
#{
\once \override DynamicTextSpanner #'stencil =
#(lambda (grob)
(let* ((stil (ly:line-spanner::print grob))
(x-ext (ly:stencil-extent stil X))
(y-ext (ly:stencil-extent stil Y)))
(ly:grob-set-property! grob 'whiteout #t)
(ly:make-stencil
(ly:stencil-expr stil)
(interval-widen x-ext (car adds))
(interval-widen y-ext (cdr adds)))))
#})
Apply it with
\moreVerticalDynamicTextSpannerWhiteout #'(0 . 2.5)
Where the first number of the pair means additionally extension in
X-axis, the second in Y-axis.
Both values expand the stencil in two directions:
The first left and right, the second below and above.
HTH,
Harm
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