(scm page)
)
+
(define (write-page-breaks pages)
"Dump page breaks"
-
- (define tweaks '())
+ (define tweaks (make-hash-table 23))
+
+ (define (record what property-pairs)
+ (let*
+ ((key (ly:output-def-lookup (ly:grob-layout what)
+ 'tweak-key
+ "tweaks"
+ ))
+ (when (ly:grob-property what 'when))
+ )
- (define (record when property-pairs)
- (set! tweaks
- (acons when property-pairs
- tweaks)))
+ (if (not (hash-ref tweaks key))
+ (hash-set! tweaks key '()))
+
+ (hash-set! tweaks key
+ (acons when property-pairs
+ (hash-ref tweaks key)))
+
+ ))
+
+ (define (graceless-moment mom)
+ (ly:make-moment
+ (ly:moment-main-numerator mom)
+ (ly:moment-main-denominator mom)
+ 0 0))
(define (moment->skip mom)
- (format "s1*~a/~a"
- (ly:moment-main-numerator mom)
- (ly:moment-main-denominator mom)))
-
+ (let*
+ ((main (if (> (ly:moment-main-numerator mom) 0)
+ (format "\\skip 1*~a/~a"
+ (ly:moment-main-numerator mom)
+ (ly:moment-main-denominator mom))
+ ""))
+ (grace (if (< (ly:moment-grace-numerator mom) 0)
+ (format "\\grace { \\skip 1*~a/~a }"
+ (- (ly:moment-grace-numerator mom))
+ (ly:moment-grace-denominator mom))
+ "")))
+
+ (format "~a~a" main grace)))
+
(define (dump-tweaks out-port tweak-list last-moment)
(if (not (null? tweak-list))
(let*
(diff (ly:moment-sub now last-moment))
(these-tweaks (cdar tweak-list))
(skip (moment->skip diff))
-
- (base (format "\\overrideProperty
- #\"Score.NonMusicalPaperColumn\"
- #'line-break-system-details
- #'~a" these-tweaks))
+ (line-break-str (if (assoc-get 'line-break these-tweaks #f)
+ "\\break\n"
+ ""))
+ (page-break-str (if (assoc-get 'page-break these-tweaks #f)
+ "\\pageBreak\n"
+ ""))
+ (space-tweaks (format "\\spacingTweaks #'~a\n"
+ (with-output-to-string
+ (lambda ()
+ (pretty-print
+
+ (assoc-get 'spacing-parameters these-tweaks '()))))
+ ))
+ (base (format "~a~a~a"
+ line-break-str
+ page-break-str
+ space-tweaks))
)
- (format out-port "\\skip ~a\n~a\n" skip base)
- (dump-tweaks out-port (cdr tweak-list) now)
- )
+ (format out-port "~a\n~a\n" skip base)
+ (dump-tweaks out-port (cdr tweak-list) (graceless-moment now))
+ )))
+
+ (define (dump-all-tweaks)
+ (let*
+ ((paper (ly:paper-book-paper (page-property (car pages) 'paper-book)))
+ (parser (ly:output-def-parser paper))
+ (name (format "~a-page-layout.ly"
+ (ly:parser-output-name parser)))
+ (out-port (open-output-file name)))
+
+ (ly:progress "Writing page layout to ~a" name)
+ (hash-for-each
+ (lambda (key val)
+ (format out-port "~a = {" key)
+ (dump-tweaks out-port (reverse val) (ly:make-moment 0 1))
+ (display "}" out-port))
+ tweaks)
+ (close-port out-port)
+ ))
- ))
-
(define (handle-page page)
+ (define index 0)
+ (define music-system-heights
+ (map-in-order (lambda (sys)
+ (* -1 (car (paper-system-extent sys Y))))
+ (remove (lambda (sys)
+ (ly:prob-property? sys 'is-title))
+ (page-lines page))))
(define (handle-system sys)
(let*
- ((props '((line-break . #t))))
+ ((props `((line-break . #t)
+ (spacing-parameters
+ . ((system-Y-extent . ,(paper-system-extent sys Y))
+ (system-refpoint-Y-extent . ,(paper-system-staff-extents sys))
+ (system-index . ,index)
+ (music-system-heights . ,music-system-heights)
+ (page-system-count . ,(length (page-lines page)))
+ (page-printable-height . ,(page-printable-height page))
+ (page-space-left . ,(page-property page 'space-left))))
+ )))
(if (equal? (car (page-lines page)) sys)
(set! props (cons '(page-break . #t)
props)))
-
(if (not (ly:prob-property? sys 'is-title))
- (record (ly:grob-property (ly:spanner-bound (ly:prob-property sys 'system-grob) LEFT) 'when)
- props))
+ (record (ly:spanner-bound (ly:prob-property sys 'system-grob) LEFT)
+ props))
+
+ (set! index (1+ index))
))
(for-each handle-system (page-lines page)))
-
-
- (for-each handle-page pages)
-
- (let*
- ((out-port (open-output-file "breaks.ly")))
-
- (display "{" out-port)
- (dump-tweaks out-port (reverse tweaks) (ly:make-moment 0 1))
- (display "}" out-port)
- ))
-
+ (for-each handle-page pages)
+ (dump-all-tweaks))
(define (post-process-pages layout pages)
- (if (ly:get-option 'write-page-layout)
+ (if (ly:output-def-lookup layout 'write-page-layout #f)
(write-page-breaks pages)))
-
-
-;;; optimal page breaking
-
-;;; This is not optimal page breaking, this is optimal distribution of
-;;; lines over pages; line breaks are a given.
+;; Optimal distribution of
+;; lines over pages; line breaks are a given.
;; TODO:
;;
;; - density scoring
;; - separate function for word-wrap style breaking?
-;; - raggedbottom? raggedlastbottom?
+;; - ragged-bottom? ragged-last-bottom?
(define-public (optimal-page-breaks lines paper-book)
"Return pages as a list starting with 1st page. Each page is a 'page Prob."
(define scopes (ly:paper-book-scopes paper-book))
(define force-equalization-factor #f)
(define (get-path node done)
+
"Follow NODE.PREV, and return as an ascending list of pages. DONE
is what have collected so far, and has ascending page numbers."
(prev-penalty (if (null? best-paths)
0.0
(page-penalty (car best-paths))))
- (inter-system-space (ly:output-def-lookup paper 'betweensystemspace))
+ (inter-system-space (ly:output-def-lookup paper 'between-system-space))
(relative-force (/ force inter-system-space))
(abs-relative-force (abs relative-force)))
(define (space-systems page-height lines ragged?)
(let* ((global-inter-system-space
- (ly:output-def-lookup paper 'betweensystemspace))
+ (ly:output-def-lookup paper 'between-system-space))
(top-space
- (ly:output-def-lookup paper 'pagetopspace))
- (global-fixed-dist (ly:output-def-lookup paper 'betweensystempadding))
+ (ly:output-def-lookup paper 'page-top-space))
+ (global-fixed-dist (ly:output-def-lookup paper 'between-system-padding))
(system-vector (list->vector
(append lines
(ideal (+
(cond
((and title2? title1?)
- (ly:output-def-lookup paper 'betweentitlespace))
+ (ly:output-def-lookup paper 'between-title-space))
(title1?
- (ly:output-def-lookup paper 'aftertitlespace))
+ (ly:output-def-lookup paper 'after-title-space))
(title2?
- (ly:output-def-lookup paper 'beforetitlespace))
+ (ly:output-def-lookup paper 'before-title-space))
(else between-space))
fixed))
(hooke (/ 1 (- ideal fixed))))
(rods (map calc-rod (iota (1- system-count))))
;; we don't set ragged based on amount space left.
- ;; raggedbottomlast = ##T is much more predictable
+ ;; ragged-bottomlast = ##T is much more predictable
(result (ly:solve-spring-rod-problem
springs rods space
ragged?))
(cons force positions)))
- (define (walk-paths done-lines best-paths current-lines last? current-best)
+ (define (walk-paths done-lines best-paths current-lines last? current-best)
"Return the best optimal-page-break-node that contains
CURRENT-LINES. DONE-LINES.reversed ++ CURRENT-LINES is a consecutive
ascending range of lines, and BEST-PATHS contains the optimal breaks
CURRENT-BEST is the best result sofar, or #f."
-
(let* ((this-page-num (if (null? best-paths)
- (ly:output-def-lookup paper 'firstpagenumber)
+ (ly:output-def-lookup paper 'first-page-number)
(1+ (page-page-number (car best-paths)))))
(this-page (make-page
'is-last last?
'page-number this-page-num))
- (ragged-all? (eq? #t (ly:output-def-lookup paper 'raggedbottom)))
- (ragged-last? (eq? #t (ly:output-def-lookup paper 'raggedlastbottom)))
+ (ragged-all? (eq? #t (ly:output-def-lookup paper 'ragged-bottom)))
+ (ragged-last? (eq? #t (ly:output-def-lookup paper 'ragged-last-bottom)))
(ragged? (or ragged-all?
(and ragged-last?
last?)))
(height (page-printable-height this-page))
(vertical-spacing (space-systems height current-lines ragged?))
+
(satisfied-constraints (car vertical-spacing))
(force (if satisfied-constraints
(if (and last? ragged-last?)
force user-penalty
best-paths))
- (better? (or
- (not current-best)
- (< total-penalty (page-penalty current-best))))
- (new-best (if better?
+ (is-better (or
+ (not current-best)
+ (and
+ satisfied-constraints
+ (< total-penalty (page-penalty current-best)))))
+ (new-best (if is-better
(begin
(map
(lambda (x)
"\nuser pen " user-penalty
"\nsatisfied-constraints" satisfied-constraints
"\nlast? " last? "ragged?" ragged?
- "\nbetter? " better? " total-penalty " total-penalty "\n"
+ "\nis-better " is-better " total-penalty " total-penalty "\n"
"\nconfig " positions
"\nforce " force
"\nlines: " current-lines "\n")))
(ly:output-def-lookup paper 'verticalequalizationfactor 0.3))
(let* ((best-break-node (walk-lines '() '() lines))
- (break-nodes (get-path best-break-node '()))
- )
+ (break-nodes (get-path best-break-node '())))
(page-set-property! (car (last-pair break-nodes)) 'is-last #t)
(if #f; (ly:get-option 'verbose)
projects / lilypond.git / blobdiff