Peter Mayes wrote:
On 16/04/2024 23:33, Knute Snortum wrote:
3. How to stop the second line being justified out to the right?
In the fuller score, something like this is followed by a page
break and more music, but there is a natural break at this double
bar, and it looks very "stretched out". I tried various "ragged"
keywords, but none of them just operated on the one line.
Is this not what you want?
\paper {
ragged-last = ##t
}
That works for the last line of the whole score. The line I want to be
"ragged" is the last line of a page. with more music on the next page.
A similar question last year got several answers:
https://lists.gnu.org/archive/html/lilypond-user/2023-06/msg00148.html
If you want to try pseudoIndent, I have appended the latest version.
Cheers,
Robin
%%%%%%%% PSEUDOINDENT FUNCTIONS %%%%%%%%
% these two functions are for indenting individual systems
% - to left-indent a system, apply \pseudoIndent before the music continues
% - \pseudoIndents is similar, but lets you also indent on the right
% - both provide an option for changing that system's instrument names
% N.B. these functions
% - assume application to non-ragged lines (generally the default)
% - include a manual \break to ensure application at line start
% - misbehave if called more than once at the same line start
% the parameters of the (full) pseudoIndents function are:
% 1: name-tweaks
% usually omitted; accepts replacement \markup for instrument names
% as an ordered list; starred elements leave their i-names unchanged.
% 2: left-indent
% additional left-indentation, in staff-space units; can be negative,
% but avoid a total indentation which implies (unsupported) stretching.
% 3: right-indent
% amount of right-indentation, in staff-space units; can be negative.
% - not offered by the (reduced) pseudoIndent function
pseudoIndents = % inline alternative to a new \score, also with right-indent
#(define-music-function (name-tweaks left-indent right-indent)
((markup-list? '()) number? number?)
(define (warn-stretched p1 p2) (ly:input-warning (*location*) (G_
" pseudoIndents ~s ~s is stretching staff; expect distorted layout") p1 p2))
(let* (
(narrowing (+ left-indent right-indent)) ; of staff implied by args
(set-staffsymbol! (lambda (staffsymbol-grob) ; change staff to new width
(let* (
(left-bound (ly:spanner-bound staffsymbol-grob LEFT))
(left-moment (ly:grob-property left-bound 'when))
(capo? (moment<=? left-moment ZERO-MOMENT)) ; in first system of score
(layout (ly:grob-layout staffsymbol-grob))
(lw (ly:output-def-lookup layout 'line-width)) ; debugging info
(indent (ly:output-def-lookup layout (if capo? 'indent 'short-indent)))
(old-stil (ly:staff-symbol::print staffsymbol-grob))
(staffsymbol-x-ext (ly:stencil-extent old-stil X))
;; >=2.19.16's first system has old-stil already narrowed [2]
;; compensate for this (ie being not pristine) when calculating
;; - old leftmost-x (its value is needed when setting so-called 'width)
;; - the new width and position (via local variable narrowing_)
(ss-t (ly:staff-symbol-line-thickness staffsymbol-grob))
(pristine? (<= 0 (car staffsymbol-x-ext) ss-t)) ; would expect half
(leftmost-x (+ indent (if pristine? 0 narrowing)))
(narrowing_ (if pristine? narrowing 0)) ; uses 0 if already narrowed
(old-width (+ (interval-length staffsymbol-x-ext) ss-t))
(new-width (- old-width narrowing_))
(new-rightmost-x (+ leftmost-x new-width)) ; and set! this immediately
(junk (ly:grob-set-property! staffsymbol-grob 'width new-rightmost-x))
(in-situ-stil (ly:staff-symbol::print staffsymbol-grob))
(new-stil (ly:stencil-translate-axis in-situ-stil narrowing_ X))
;(new-stil (stencil-with-color new-stil red)) ; for when debugging
(new-x-ext (ly:stencil-extent new-stil X)))
(ly:grob-set-property! staffsymbol-grob 'stencil new-stil)
(ly:grob-set-property! staffsymbol-grob 'X-extent new-x-ext)
)))
(set-X-offset! (lambda (margin-grob) ; move grob across to line start
(let* (
(old (ly:grob-property-data margin-grob 'X-offset))
(new (lambda (grob) (+ (if (procedure? old) (old grob) old) narrowing))))
(ly:grob-set-property! margin-grob 'X-offset new))))
(tweak-text! (lambda (i-name-grob mkup) ; tweak both instrumentname texts
(if (and (markup? mkup) (not (string=? (markup->string mkup) "*")))
(begin
(ly:grob-set-property! i-name-grob 'long-text mkup)
(ly:grob-set-property! i-name-grob 'text mkup)
)))) ; else retain existing text
(install-narrowing (lambda (leftedge-grob) ; on staves, + adapt left margin
(define (grob-name x) (assq-ref (ly:grob-property x 'meta) 'name))
(let* (
(sys (ly:grob-system leftedge-grob))
(all-grobs (ly:grob-array->list (ly:grob-object sys 'all-elements)))
(grobs-named (lambda (name)
(filter (lambda (x) (eq? name (grob-name x))) all-grobs)))
(first-leftedge-grob (list-ref (grobs-named 'LeftEdge) 0))
(relsys-x-of (lambda (g) (ly:grob-relative-coordinate g sys X)))
(leftedge-x (relsys-x-of first-leftedge-grob))
(leftedged? (lambda (g) (= (relsys-x-of g) leftedge-x)))
(leftedged-ss (filter leftedged? (grobs-named 'StaffSymbol))))
(if (eq? leftedge-grob first-leftedge-grob) ; ignore other leftedges [1]
(begin
(for-each set-staffsymbol! leftedged-ss)
(for-each set-X-offset! (grobs-named 'SystemStartBar))
(for-each set-X-offset! (grobs-named 'InstrumentName))
(for-each tweak-text! (grobs-named 'InstrumentName) name-tweaks)
))))))
(if (negative? narrowing) (warn-stretched left-indent right-indent))
#{ % and continue anyway
% ensure that these overrides are applied only at begin-of-line
\break % (but this does not exclude unsupported multiple application)
% give the spacing engine notice regarding the loss of width for music
\once \override Score.LeftEdge.X-extent = #(cons narrowing narrowing)
% discard line start region of staff and reassemble left-margin elements
\once \override Score.LeftEdge.after-line-breaking = #install-narrowing
% shift the system to partition the narrowing between left and right
\overrideProperty Score.NonMusicalPaperColumn.line-break-system-details
.X-offset #(- right-indent)
% prevent a leftmost barnumber entering a stretched staff
\once \override Score.BarNumber.horizon-padding = #(max 1 (- 1 narrowing))
#}))
pseudoIndent = % for changing just left-indent
#(define-music-function (name-tweaks left-indent)
((markup-list? '()) number?)
#{
\pseudoIndents $name-tweaks $left-indent 0
#})
% [1] versions <2.19.1 can have end-of-line leftedges too
% - these were eliminated in issue 3761
% [2] versions >=2.19.16: the first system behaves differently from the rest
% - a side effect of issue 660 ?
% [3] versions >=2.23.0: LeftEdge's position may well differ in Y (but not in X)
% - a side effect of issue 6084 ?
% this code excerpt from https://lsr.di.unimi.it/LSR/Item?id=1098, following
% https://lists.gnu.org/archive/html/lilypond-user/2023-11/msg00118.html
