X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Foutput-svg.scm;h=27dfe4e74aafbc6b3c81d7f98038e54f444a41bc;hb=116fe5fbb8baeb3f7f500030144e33dabc74aa14;hp=786a37ca177deb434518e3b5e2d650053dba97bd;hpb=9f3572d98bb948c9689cd1f75401a029451fa001;p=lilypond.git diff --git a/scm/output-svg.scm b/scm/output-svg.scm index 786a37ca17..27dfe4e74a 100644 --- a/scm/output-svg.scm +++ b/scm/output-svg.scm @@ -24,6 +24,7 @@ (guile) (ice-9 regex) (lily) + (srfi srfi-1) (srfi srfi-13)) @@ -70,6 +71,16 @@ (define (offset->point o) (format #f " ~S,~S" (car o) (- (cdr o)))) +(define (number-list->point lst) + (define (helper lst) + (if (null? lst) + '() + (cons (format "~S,~S" (car lst) (cadr lst)) + (helper (cddr lst))))) + + (string-join (helper lst) " ")) + + (define (svg-bezier lst close) (let* ((c0 (car (list-tail lst 3))) (c123 (list-head lst 3))) @@ -94,10 +105,10 @@ (map (lambda (x) (char->entity x)) (string->list string)))) (define pango-description-regexp-comma - (make-regexp "^([^,]+), ?([-a-zA-Z_]*) ([0-9.]+)$")) + (make-regexp "([^,]+), ?([-a-zA-Z_]*) ([0-9.]+)$")) (define pango-description-regexp-nocomma - (make-regexp "^([^ ]+) ([-a-zA-Z_]*) ?([0-9.]+)$")) + (make-regexp "([^ ]+) ([-a-zA-Z_]*) ?([0-9.]+)$")) (define (pango-description-to-svg-font str) (let* @@ -193,13 +204,48 @@ (entity 'path "" '(stroke-linejoin . "round") '(stroke-linecap . "round") - `(stroke-width . ,thick) '(stroke . "currentColor") '(fill . "currentColor") + `(stroke-width . ,thick) `(d . ,(string-append (svg-bezier first #f) (svg-bezier second first-c0))) ))) +(define (path thick commands) + (define (convert-path-exps exps) + (if (pair? exps) + (let* + ((head (car exps)) + (rest (cdr exps)) + (arity + (cond + ((memq head '(rmoveto rlineto lineto moveto)) 2) + ((memq head '(rcurveto curveto)) 6) + (else 1))) + (args (take rest arity)) + (svg-head (assoc-get head '((rmoveto . m) + (rcurveto . c) + (curveto . C) + (moveto . M) + (lineto . L) + (rlineto . l)) + "")) + ) + + (cons (format "~a~a " + svg-head (number-list->point args) + ) + (convert-path-exps (drop rest arity)))) + '())) + + (entity 'path "" + `(stroke-width . ,thick) + '(stroke-linejoin . "round") + '(stroke-linecap . "round") + '(stroke . "currentColor") + '(fill . "none") + `(d . ,(string-join (convert-path-exps commands) " ")))) + (define (char font i) (dispatch `(fontify ,font ,(entity 'tspan (char->entity (integer->char i)))))) @@ -221,7 +267,7 @@ (y2 . ,(- y2))) alist))) -(define (dashed-line thick on off dx dy) +(define (dashed-line thick on off dx dy phase) (draw-line thick 0 0 dx dy `(style . ,(format "stroke-dasharray:~a,~a;" on off)))) (define (named-glyph font name)