-;;;; stenicil.scm --
+;;;; stencil.scm --
;;;;
;;;; source file of the GNU LilyPond music typesetter
;;;;
-;;;; (c) 2003--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+;;;; (c) 2003--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
(define-public (stack-stencils axis dir padding stils)
"Stack stencils STILS in direction AXIS, DIR, using PADDING."
- (if (null? stils)
- '()
- (if (pair? stils)
- (ly:stencil-combine-at-edge
- (car stils) axis dir (stack-stencils axis dir padding (cdr stils))
- padding))))
+ (cond
+ ((null? stils) empty-stencil)
+ ((null? (cdr stils)) (car stils))
+ (else (ly:stencil-combine-at-edge
+ (car stils) axis dir (stack-stencils axis dir padding (cdr stils))
+ padding))))
+
+(define-public (stack-stencils-padding-list axis dir padding stils)
+ "Stack stencils STILS in direction AXIS, DIR, using a list of PADDING."
+ (cond
+ ((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 padding)))))
+
+(define-public (centered-stencil stencil)
+ "Center stencil @var{stencil} in both the X and Y directions"
+ (ly:stencil-aligned-to (ly:stencil-aligned-to stencil X CENTER) Y CENTER))
(define-public (stack-lines dir padding baseline stils)
"Stack vertically with a baseline-skip."
- (if (null? stils)
- '()
- (if (null? (cdr stils))
- (car stils)
- (ly:stencil-combine-at-edge
- (car stils) Y dir
- (stack-lines dir padding baseline (cdr stils))
- padding baseline))))
+ (define result empty-stencil)
+ (define last-y #f)
+ (do
+ ((last-stencil #f (car p))
+ (p stils (cdr p)))
+
+ ((null? p))
+
+ (if (number? last-y)
+ (begin
+ (let* ((dy (max (+ (* dir (interval-bound (ly:stencil-extent last-stencil Y) dir))
+ padding
+ (* (- dir) (interval-bound (ly:stencil-extent (car p) Y) (- dir))))
+ baseline))
+ (y (+ last-y (* dir dy))))
+
+
+
+ (set! result
+ (ly:stencil-add result (ly:stencil-translate-axis (car p) y Y)))
+ (set! last-y y)))
+ (begin
+ (set! last-y 0)
+ (set! result (car p)))))
+
+ result)
+
(define-public (bracketify-stencil stil axis thick protusion padding)
"Add brackets around STIL, producing a new stencil."
"Make a filled box."
(ly:make-stencil
- (list 'filledbox (- (car xext)) (cdr xext)
- (- (car yext)) (cdr yext))
+ (list 'round-filled-box (- (car xext)) (cdr xext)
+ (- (car yext)) (cdr yext) 0.0)
xext yext))
+(define-public (make-circle-stencil radius thickness fill)
+ "Make a circle of radius @var{radius} and thickness @var{thickness}"
+ (ly:make-stencil
+ (list 'circle radius thickness fill)
+ (cons (- radius) radius)
+ (cons (- radius) radius)))
(define-public (box-grob-stencil grob)
"Make a box of exactly the extents of the grob. The box precisely
(let* ((xext (ly:grob-extent grob grob 0))
(yext (ly:grob-extent grob grob 1))
(thick 0.1))
-
+
(ly:stencil-add
(make-filled-box-stencil xext (cons (- (car yext) thick) (car yext)))
- (make-filled-box-stencil xext (cons (cdr yext) (+ (cdr yext) thick)))
+ (make-filled-box-stencil xext (cons (cdr yext) (+ (cdr yext) thick)))
(make-filled-box-stencil (cons (cdr xext) (+ (cdr xext) thick)) yext)
(make-filled-box-stencil (cons (- (car xext) thick) (car xext)) yext))))
;; TODO merge this and prev function.
-(define-public (box-stencil stil thick padding)
- "Add a box around STIL, producing a new stencil."
- (let* ((x-ext (interval-widen (ly:stencil-extent stil 0) padding))
- (y-ext (interval-widen (ly:stencil-extent stil 1) padding))
- (y-rule (make-filled-box-stencil (cons 0 thick) y-ext))
- (x-rule (make-filled-box-stencil (interval-widen x-ext thick)
- (cons 0 thick))))
-
- (set! stil (ly:stencil-combine-at-edge stil X 1 y-rule padding))
- (set! stil (ly:stencil-combine-at-edge stil X -1 y-rule padding))
- (set! stil (ly:stencil-combine-at-edge stil Y 1 x-rule 0.0))
- (set! stil (ly:stencil-combine-at-edge stil Y -1 x-rule 0.0))
-
- stil))
+(define-public (box-stencil stencil thickness padding)
+ "Add a box around STENCIL, producing a new stencil."
+ (let* ((x-ext (interval-widen (ly:stencil-extent stencil 0) padding))
+ (y-ext (interval-widen (ly:stencil-extent stencil 1) padding))
+ (y-rule (make-filled-box-stencil (cons 0 thickness) y-ext))
+ (x-rule (make-filled-box-stencil
+ (interval-widen x-ext thickness) (cons 0 thickness))))
+ (set! stencil (ly:stencil-combine-at-edge stencil X 1 y-rule padding))
+ (set! stencil (ly:stencil-combine-at-edge stencil X -1 y-rule padding))
+ (set! stencil (ly:stencil-combine-at-edge stencil Y 1 x-rule 0.0))
+ (set! stencil (ly:stencil-combine-at-edge stencil Y -1 x-rule 0.0))
+ stencil))
+
+(define-public (circle-stencil stencil thickness padding)
+ "Add a circle around STENCIL, producing a new stencil."
+ (let* ((x-ext (ly:stencil-extent stencil 0))
+ (y-ext (ly:stencil-extent stencil 1))
+ (diameter (max (- (cdr x-ext) (car x-ext))
+ (- (cdr y-ext) (car y-ext))))
+ (radius (+ (/ diameter 2) padding thickness))
+ (circle (make-circle-stencil radius thickness #f)))
+
+ (ly:stencil-add
+ stencil
+ (ly:stencil-translate circle
+ (cons
+ (interval-center x-ext)
+ (interval-center y-ext))))))
+
(define-public (fontify-text font-metric text)
"Set TEXT with font FONT-METRIC, returning a stencil."
- (let* ((b (ly:text-dimension font-metric text)))
+ (let* ((b (ly:text-dimension font-metric text)))
(ly:make-stencil
`(text ,font-metric ,text) (car b) (cdr b))))
-(define-public (fontify-text-white font-metric text)
- "Set TEXT with font FONT-METRIC, in color white, returning a stencil."
- (let* ((b (ly:text-dimension font-metric text))
- (c `(white-text ,text)))
- (ly:make-stencil c (car b) (cdr b)))) ;urg -- extent is not from ps font, but we hope it's close
+(define-public (fontify-text-white scale font-metric text)
+ "Set TEXT with scale factor SCALE"
+ (let* ((b (ly:text-dimension font-metric text))
+ ;;urg -- workaround for using ps font
+ (c `(white-text ,(* 2 scale) ,text)))
+ ;;urg -- extent is not from ps font, but we hope it's close
+ (ly:make-stencil c (car b) (cdr b))))
+
+(define-public (stencil-with-color stencil color)
+ (ly:make-stencil
+ (list 'color color (ly:stencil-expr stencil))
+ (ly:stencil-extent stencil X)
+ (ly:stencil-extent stencil Y)))
+
+(define-public (stencil-whiteout stencil)
+ (let*
+ ((x-ext (ly:stencil-extent stencil X))
+ (y-ext (ly:stencil-extent stencil Y))
+
+ )
+
+ (ly:stencil-add
+ (stencil-with-color (ly:round-filled-box x-ext y-ext 0.0)
+ white)
+ stencil)
+ ))
+
+(define-public (dimension-arrows destination)
+ "Draw twosided arrow from here to @var{destination}"
+
+ (let*
+ ((e_x 1+0i)
+ (e_y 0+1i)
+ (rotate (lambda (z ang)
+ (* (make-polar 1 ang)
+ z)))
+ (complex-to-offset (lambda (z)
+ (list (real-part z) (imag-part z))))
+
+ (z-dest (+ (* e_x (car destination)) (* e_y (cdr destination))))
+ (e_z (/ z-dest (magnitude z-dest)))
+ (triangle-points '(-1+0.25i
+ 0
+ -1-0.25i))
+ (p1s (map (lambda (z)
+ (+ z-dest (rotate z (angle z-dest))))
+ triangle-points))
+ (p2s (map (lambda (z)
+ (rotate z (angle (- z-dest))))
+ triangle-points))
+ (null (cons 0 0))
+ (arrow-1
+ (ly:make-stencil
+ `(polygon (quote ,(concatenate (map complex-to-offset p1s)))
+ 0.0
+ #t) null null))
+ (arrow-2
+ (ly:make-stencil
+ `(polygon (quote ,(concatenate (map complex-to-offset p2s)))
+ 0.0
+ #t) null null ) )
+ (thickness 0.1)
+ (shorten-line 0.5)
+ (start (complex-to-offset (/ (* e_z shorten-line) 2)))
+ (end (complex-to-offset (- z-dest (/ (* e_z shorten-line) 2))))
+
+ (line (ly:make-stencil
+ `(draw-line ,thickness
+ ,(car start) ,(cadr start)
+ ,(car end) ,(cadr end)
+ )
+ (cons (min 0 (car destination))
+ (min 0 (cdr destination)))
+ (cons (max 0 (car destination))
+ (max 0 (cdr destination)))))
+
+ (result (ly:stencil-add arrow-2 arrow-1 line)))
+
+
+ result))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; ANNOTATIONS
+;;
+;; annotations are arrows indicating the numerical value of
+;; spacing variables
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(define*-public (annotate-y-interval layout name extent is-length
+ #:key (color darkblue))
+ (let ((text-props (cons '((font-size . -3)
+ (font-family . typewriter))
+ (layout-extract-page-properties layout)))
+ (annotation #f))
+ (define (center-stencil-on-extent stil)
+ (ly:stencil-translate (ly:stencil-aligned-to stil Y CENTER)
+ (cons 0 (interval-center extent))))
+ ;; 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
+ (markup #:whiteout #:simple name)))
+ (dim-stencil (interpret-markup
+ layout text-props
+ (markup #:whiteout
+ #:simple (cond
+ ((interval-empty? extent)
+ (format "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
+ (center-stencil-on-extent text-stencil))
+ (set! annotation
+ (ly:stencil-combine-at-edge arrows X RIGHT annotation 0.5))
+ (set! annotation
+ (ly:stencil-combine-at-edge annotation X LEFT
+ (center-stencil-on-extent dim-stencil)
+ 0.5))
+ (set! annotation
+ (ly:make-stencil (list 'color color (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))))))
+
+
+(use-modules (scm paper-system))
+(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 (pythonic-string expr)
+ "escape quotes and slashes for python consumption"
+ (regexp-substitute/global #f "([\n\\\\'\"])" (format "~a" expr) 'pre "\\" 1 'post))
+
+ (define (pythonic-pair expr)
+ (format "(~a,~a)"
+ (car expr) (cdr expr)))
+
+
+ (define (raw-string expr)
+ "escape quotes and slashes for python consumption"
+ (regexp-substitute/global #f "[@\n]" (format "~a" expr) 'pre " " 'post))
+
+ (define (raw-pair expr)
+ (format "~a ~a"
+ (car expr) (cdr expr)))
+
+ (define (found-grob expr)
+ (let*
+ ((grob (car expr))
+ (rest (cdr expr))
+ (collected '())
+ (cause (event-cause grob))
+ (input (if (ly:stream-event? cause) (ly:event-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) ))
+ (raw-string location)
+ (raw-pair (if (interval-empty? x-ext) '(1 . -1) x-ext))
+ (raw-pair (if (interval-empty? y-ext) '(1 . -1) y-ext))
+ (raw-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)))))
+
+ ;; should be superfluous, but leaking "too many open files"?
+ (close-port output))
+
projects / lilypond.git / blobdiff