((null? stils) empty-stencil)
((null? (cdr stils)) (car stils))
(else (ly:stencil-combine-at-edge
- (car stils) axis dir (stack-stencils-padding-list axis dir (cdr padding) (cdr stils))
+ (car stils)
+ axis dir
+ (stack-stencils-padding-list axis dir (cdr padding) (cdr stils))
(car padding)))))
(define-public (centered-stencil stencil)
result))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; ANNOTATIONS
+;;
+;; annotations are arrows indicating the numerical value of
+;; spacing variables
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(define-public (annotate-y-interval layout name extent is-length)
+ (let*
+ ((text-props (cons
+ '((font-size . -3)
+ (font-family . typewriter))
+ (layout-extract-page-properties layout)))
+ (annotation #f)
+ )
+
+ ;; do something sensible for 0,0 intervals.
+ (set! extent (interval-widen extent 0.001))
+ (if (not (interval-sane? extent))
+ (set! annotation (interpret-markup layout text-props
+ (make-simple-markup (format "~a: NaN/inf" name))))
+ (let*
+ ((text-stencil (interpret-markup
+ layout text-props
+ (make-column-markup
+ (list
+ (make-whiteout-markup (make-simple-markup name))
+ (make-whiteout-markup
+ (make-simple-markup
+ (cond
+ ((interval-empty? extent) "empty")
+ (is-length (format "~$" (interval-length extent)))
+ (else
+ (format "(~$,~$)" (car extent)
+ (cdr extent))))))))))
+ (arrows
+ (ly:stencil-translate-axis
+ (dimension-arrows (cons 0 (interval-length extent)))
+ (interval-start extent) Y)))
+
+ (set! annotation
+ (ly:stencil-aligned-to text-stencil Y CENTER))
+
+ (set! annotation (ly:stencil-translate
+ annotation
+ (cons 0 (interval-center extent))))
+
+
+ (set! annotation
+ (ly:stencil-combine-at-edge arrows X RIGHT annotation 0.5 0))
+
+ (set! annotation
+ (ly:make-stencil (ly:stencil-expr annotation)
+ (ly:stencil-extent annotation X)
+ (cons 10000 -10000)))))
+ annotation))
+
+
+(define-public (eps-file->stencil axis size file-name)
+ (let*
+ ((contents (ly:gulp-file file-name))
+ (bbox (get-postscript-bbox contents))
+ (bbox-size (if (= axis X)
+ (- (list-ref bbox 2) (list-ref bbox 0))
+ (- (list-ref bbox 3) (list-ref bbox 1))
+ ))
+ (factor (exact->inexact (/ size bbox-size)))
+ (scaled-bbox
+ (map (lambda (x) (* factor x)) bbox)))
+
+ (if bbox
+ (ly:make-stencil
+ (list
+ 'embedded-ps
+ (string-append
+ (format
+ "
+gsave
+currentpoint translate
+BeginEPSF
+~a ~a scale
+%%BeginDocument: ~a
+" factor factor
+ file-name
+ )
+ contents
+ "%%EndDocument
+EndEPSF
+grestore
+"))
+
+ (cons (list-ref scaled-bbox 0) (list-ref scaled-bbox 2))
+ (cons (list-ref scaled-bbox 1) (list-ref scaled-bbox 3)))
+
+ (ly:make-stencil "" '(0 . 0) '(0 . 0)))
+ ))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; output signatures.
+
+(define-public (write-system-signatures basename paper-systems count)
+ (if (pair? paper-systems)
+ (begin
+ (let*
+ ((outname (format "~a-~a.signature" basename count)) )
+
+ (ly:message "Writing ~a" outname)
+ (write-system-signature outname (car paper-systems))
+ (write-system-signatures basename (cdr paper-systems) (1+ count))))))
+
+
+(define-public (write-system-signature filename paper-system)
+ (define (float? x)
+ (and (number? x) (inexact? x)))
+
+ (define system-grob
+ (paper-system-system-grob paper-system))
+
+ (define output (open-output-file filename))
+
+ (define (strip-floats expr)
+ "Replace floats by #f"
+ (cond
+ ((float? expr) #f)
+ ((ly:font-metric? expr) (ly:font-name expr))
+ ((pair? expr) (cons (strip-floats (car expr))
+ (strip-floats (cdr expr))))
+ (else expr)))
+
+ (define (fold-false-pairs expr)
+ "Try to remove lists of #f as much as possible."
+ (if (pair? expr)
+ (let*
+ ((first (car expr))
+ (rest (fold-false-pairs (cdr expr))))
+
+ (if first
+ (cons (fold-false-pairs first) rest)
+ rest))
+ expr))
+
+ (define (music-cause grob)
+ (let*
+ ((cause (ly:grob-property grob 'cause)))
+
+ (cond
+ ((ly:music? cause) cause)
+ ((ly:grob? cause) (music-cause cause))
+ (else #f))))
+
+ (define (pythonic-string expr)
+ "escape quotes and slashes for python consumption"
+ (regexp-substitute/global #f "([\\\\'\"])" (format "~a" expr) 'pre "\\" 1 'post))
+
+ (define (pythonic-pair expr)
+ (format "(~a,~a)"
+ (car expr) (cdr expr)))
+
+ (define (found-grob expr)
+ (let*
+ ((grob (car expr))
+ (rest (cdr expr))
+ (collected '())
+ (cause (music-cause grob))
+ (input (if (ly:music? cause) (ly:music-property cause 'origin) #f))
+ (location (if (ly:input-location? input) (ly:input-file-line-char-column input) '()))
+
+ (x-ext (ly:grob-extent grob system-grob X))
+ (y-ext (ly:grob-extent grob system-grob Y))
+ )
+
+ (interpret-for-signature #f (lambda (e)
+ (set! collected (cons e collected)))
+ rest)
+
+ (format output
+ "['~a', '~a', ~a, ~a, '~a'],\n"
+ (cdr (assq 'name (ly:grob-property grob 'meta) ))
+ (pythonic-string location)
+ (pythonic-pair (if (interval-empty? x-ext) '(0 . 0) x-ext))
+ (pythonic-pair (if (interval-empty? y-ext) '(0 . 0) y-ext))
+ (pythonic-string collected))
+ ))
+
+ (define (interpret-for-signature escape collect expr)
+ (define (interpret expr)
+ (let*
+ ((head (if (pair? expr)
+ (car expr)
+ #f)))
+
+ (cond
+ ((eq? head 'grob-cause) (escape (cdr expr)))
+ ((eq? head 'color) (interpret (caddr expr)))
+ ((eq? head 'rotate-stencil) (interpret (caddr expr)))
+ ((eq? head 'translate-stencil) (interpret (caddr expr)))
+ ((eq? head 'combine-stencil)
+ (for-each (lambda (e) (interpret e)) (cdr expr)))
+ (else
+ (collect (fold-false-pairs (strip-floats expr))))
+
+ )))
+
+ (interpret expr))
+
+ (if (ly:grob? system-grob)
+ (begin
+ (display (format "# Output signature\n# Generated by LilyPond ~a\n" (lilypond-version))
+ output)
+ (interpret-for-signature found-grob (lambda (x) #f)
+ (ly:stencil-expr
+ (paper-system-stencil paper-system))))))
+
projects / lilypond.git / blobdiff