RE: Is it possible to have a single \override for same context/Grob for different property values?
Hello,
-Original Message-
From: Carl Sorensen [mailto:c_soren...@byu.edu]
Sent: 25 January 2011 00:17
To: Neil Puttock
Cc: James Lowe; lilypond-devel
Subject: Re: Is it possible to have a single \override for same context/Grob
for different property values?
On 1/24/11 5:15 PM, Neil Puttock n.putt...@gmail.com wrote:
On 25 January 2011 00:10, Carl Sorensen c_soren...@byu.edu wrote:
If you use pairs, instead of lists, for the property overrides then
the override list is a standard alist:
\overrideGrobProps #'Accidental #`((color . ,red) (font-size . 4)
(extra-offset . (1.5 . 3)))
Yup, but then you have to type those annoying full stops (or periods,
if you prefer. :)
This is true, but it's also consistent with the standard idiom of LilyPond
(another GLISS discussion, I suppose)
So is that a yes or no?
:)
What I am trying to avoid a scheme-code implementation in my .ly file simply
because as a 'normal' user all that stuff is hard for me. I expect I am not the
only one who struggles with knowing when to use a Grob and/or context (or
which one even) the properties are not such a big deal once you figure the
context out - some \overrides seem to not need a grob and some do but anyway -
to give you some context of where this came from
http://lsr.dsi.unimi.it/LSR/Item?id=375
The construct uses
notes = {
\repeat unfold 5 { f,16 e' d' c' }
\repeat unfold 5 { a16 c, e, c }
\repeat unfold 5 { b16 f' c' g' }
\repeat unfold 5 { d,16 g c f }
\repeat unfold 5 { e,16 g b d }
\repeat unfold 5 { g,16 a b c }
\repeat unfold 5 { \stemDown d,16 a' e' b' }
}
damping = \repeat unfold 7 {
%% default beam damping is 1:
\override Beam #'damping = #1 s4^1 (def.)
\override Beam #'damping = #2 s^2
\override Beam #'damping = #4 s^4
\override Beam #'damping = #-3 s^-3
\override Beam #'damping = #+inf.0 s^+inf.0
}
And then have the construct
\notes
\damping
This works but if I want two or more overrides for the same group of notes it
breaks down.
So I was looking how to apply a 'single' instance of an override with the same
context but for multiple properties.
I realise that this might not be the best way for 'day to day' scores but I can
see some user for this for theoretical pieces or simplifying the creation of
musical exercises for instance.
James
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Re: Is it possible to have a single \override for same context/Grob for different property values?
On 24 January 2011 17:30, James Lowe james.l...@datacore.com wrote:
So I wondered if it is possible to save some lines of code/simplify
overrides for the same context/Grob such that I can write 'something like'
\override context.GrobName ( ( #'property1 = #value1) (#'property2 =
#value2) (#'property3 = #value3) )
Here's an idea:
overrideGrobProps =
#(define-music-function (parser location grob-name prop-list) (symbol?
cheap-list?)
(make-sequential-music
(map (lambda (entry)
(make-grob-property-override grob-name (car entry) (cadr entry)))
prop-list)))
\relative c' {
c4 cis d des
% apply \override to list of properties + values (not \once)
\overrideGrobProps #'Accidental #`((color ,red) (font-size 4)
(extra-offset (1.5 . 3)))
\overrideGrobProps #'NoteHead #'((style mensural) (duration-log 0))
c4 cis d des
}
Cheers,
Neil
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Re: Is it possible to have a single \override for same context/Grob for different property values?
On 1/24/11 4:55 PM, Neil Puttock n.putt...@gmail.com wrote:
On 24 January 2011 17:30, James Lowe james.l...@datacore.com wrote:
So I wondered if it is possible to save some lines of code/simplify
overrides for the same context/Grob such that I can write 'something like'
\override context.GrobName ( ( #'property1 = #value1) (#'property2 =
#value2) (#'property3 = #value3) )
Here's an idea:
overrideGrobProps =
#(define-music-function (parser location grob-name prop-list) (symbol?
cheap-list?)
(make-sequential-music
(map (lambda (entry)
(make-grob-property-override grob-name (car entry) (cadr entry)))
prop-list)))
\relative c' {
c4 cis d des
% apply \override to list of properties + values (not \once)
\overrideGrobProps #'Accidental #`((color ,red) (font-size 4)
(extra-offset (1.5 . 3)))
If you use pairs, instead of lists, for the property overrides then the
override list is a standard alist:
\overrideGrobProps #'Accidental #`((color . ,red) (font-size . 4)
(extra-offset . (1.5 . 3)))
Seems like this might be able to be implemented in core LilyPond, but it's a
GLISS topic, I think.
Great idea!
Carl
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Re: Is it possible to have a single \override for same context/Grob for different property values?
On 25 January 2011 00:10, Carl Sorensen c_soren...@byu.edu wrote: If you use pairs, instead of lists, for the property overrides then the override list is a standard alist: \overrideGrobProps #'Accidental #`((color . ,red) (font-size . 4) (extra-offset . (1.5 . 3))) Yup, but then you have to type those annoying full stops (or periods, if you prefer. :) Cheers, Neil ___ lilypond-devel mailing list lilypond-devel@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-devel
Re: Is it possible to have a single \override for same context/Grob for different property values?
On 1/24/11 5:15 PM, Neil Puttock n.putt...@gmail.com wrote: On 25 January 2011 00:10, Carl Sorensen c_soren...@byu.edu wrote: If you use pairs, instead of lists, for the property overrides then the override list is a standard alist: \overrideGrobProps #'Accidental #`((color . ,red) (font-size . 4) (extra-offset . (1.5 . 3))) Yup, but then you have to type those annoying full stops (or periods, if you prefer. :) This is true, but it's also consistent with the standard idiom of LilyPond (another GLISS discussion, I suppose) Thanks, Carl ___ lilypond-devel mailing list lilypond-devel@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-devel
