-;;;; output-svg.scm -- implement Scheme output routines for SVG
+;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; source file of the GNU LilyPond music typesetter
-;;;;
-;;;; (c) 2002--2009 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Copyright (C) 2002--2011 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; Patrick McCarty <pnorcks@gmail.com>
-
-;;;; Recommendations:
-;;;; http://www.w3.org/TR/SVG11/
-;;;; http://www.w3.org/TR/SVGTiny12/
-;;;; http://www.w3.org/TR/SVGPrint/ -- page, pageSet in draft
-
-;;;; TODO:
-;;;; * inkscape page/pageSet support
+;;;;
+;;;; LilyPond is free software: you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation, either version 3 of the License, or
+;;;; (at your option) any later version.
+;;;;
+;;;; LilyPond is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;;; GNU General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
(define-module (scm output-svg))
(define this-module (current-module))
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;; globals
+
+;;; set by framework-gnome.scm
+(define paper #f)
+
(use-modules
(guile)
(ice-9 regex)
(ice-9 format)
+ (ice-9 optargs)
(lily)
(srfi srfi-1)
(srfi srfi-13))
(define (dispatch expr)
(let ((keyword (car expr)))
- (cond
- ((eq? keyword 'some-func) "")
- (else
- (if (module-defined? this-module keyword)
- (apply (eval keyword this-module) (cdr expr))
- (begin
- (ly:warning (_ "undefined: ~S") keyword)
- ""))))))
+ (cond ((eq? keyword 'some-func) "")
+ (else (if (module-defined? this-module keyword)
+ (apply (eval keyword this-module) (cdr expr))
+ (begin (ly:warning (_ "undefined: ~S") keyword)
+ ""))))))
;; Helper functions
(define-public (attributes attributes-alist)
(format "<~S~a>\n" entity (attributes attributes-alist)))
(define-public (eoc entity . attributes-alist)
- " oc = open/close"
+ "oc = open/close"
(format "<~S~a/>\n" entity (attributes attributes-alist)))
(define-public (ec entity)
(make-regexp "^(<[a-z]+ transform=\")(scale.[-0-9. ]+,[-0-9. ]+.\" .*>)"))
(define pango-description-regexp-comma
- (make-regexp ",( Bold)?( Italic)?( Small-Caps)? ([0-9.]+)$"))
+ (make-regexp ",( Bold)?( Italic)?( Small-Caps)?[ -]([0-9.]+)$"))
(define pango-description-regexp-nocomma
- (make-regexp "( Bold)?( Italic)?( Small-Caps)? ([0-9.]+)$"))
+ (make-regexp "( Bold)?( Italic)?( Small-Caps)?[ -]([0-9.]+)$"))
(define (pango-description-to-text str expr)
(define alist '())
(define (set-attribute attr val)
(set! alist (assoc-set! alist attr val)))
- (let*
- ((match-1 (regexp-exec pango-description-regexp-comma str))
- (match-2 (regexp-exec pango-description-regexp-nocomma str))
- (match (if match-1
- match-1
- match-2)))
+ (let* ((match-1 (regexp-exec pango-description-regexp-comma str))
+ (match-2 (regexp-exec pango-description-regexp-nocomma str))
+ (match (if match-1 match-1 match-2)))
(if (regexp-match? match)
(begin
;;
(define (glyph-element-regexp name)
(make-regexp (string-append "<glyph"
- "(([\r\n\t ]+[-a-z]+=\"[^\"]*\")+)?"
- "[\r\n\t ]+glyph-name=\"("
+ "(([[:space:]]+[-a-z]+=\"[^\"]*\")+)?"
+ "[[:space:]]+glyph-name=\"("
name
")\""
- "(([\r\n\t ]+[-a-z]+=\"[^\"]*\")+)?"
- "([\r\n\t ]+)?"
+ "(([[:space:]]+[-a-z]+=\"[^\"]*\")+)?"
+ "([[:space:]]+)?"
"/>")))
(define (extract-glyph all-glyphs name size . rest)
(extract-glyph all-glyphs glyph size))))
-(define (feta-alphabet-to-path font size glyph)
+(define (music-string-to-path font size glyph)
(let* ((name-style (font-name-style font))
(scaled-size (/ size lily-unit-length))
(font-file (ly:find-file (string-append name-style ".svg"))))
(cache-font font-file scaled-size glyph)
(ly:warning (_ "cannot find SVG font ~S") font-file))))
+(define (woff-font-smob-to-text font expr)
+ (let* ((name-style (font-name-style font))
+ (scaled-size (modified-font-metric-font-scaling font))
+ (font-file (ly:find-file (string-append name-style ".woff")))
+ (charcode (ly:font-glyph-name-to-charcode font expr))
+ (char-lookup (format #f "&#~S;" charcode))
+ (glyph-by-name (eoc 'altglyph `(glyphname . ,expr)))
+ (apparently-broken
+ (comment "FIXME: how to select glyph by name, altglyph is broken?"))
+ (text (string-regexp-substitute "\n" ""
+ (string-append glyph-by-name apparently-broken char-lookup))))
+ (define alist '())
+ (define (set-attribute attr val)
+ (set! alist (assoc-set! alist attr val)))
+ (set-attribute 'font-family name-style)
+ (set-attribute 'font-size scaled-size)
+ (apply entity 'text text (reverse! alist))))
+
+(define font-smob-to-text
+ (if (not (ly:get-option 'svg-woff))
+ font-smob-to-path woff-font-smob-to-text))
(define (fontify font expr)
(if (string? font)
(pango-description-to-text font expr)
- (font-smob-to-path font expr)))
+ (font-smob-to-text font expr)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; stencil outputters
(define (circle radius thick is-filled)
(entity
- 'circle ""
- '(stroke-linejoin . "round")
- '(stroke-linecap . "round")
- `(fill . ,(if is-filled "currentColor" "none"))
- `(stroke . "currentColor")
- `(stroke-width . ,thick)
- `(r . ,radius)))
+ 'circle ""
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ `(fill . ,(if is-filled "currentColor" "none"))
+ `(stroke . "currentColor")
+ `(stroke-width . ,thick)
+ `(r . ,radius)))
(define (dashed-line thick on off dx dy phase)
(draw-line thick 0 0 dx dy
(define (draw-line thick x1 y1 x2 y2 . alist)
(apply entity 'line ""
(append
- `((stroke-linejoin . "round")
- (stroke-linecap . "round")
- (stroke-width . ,thick)
- (stroke . "currentColor")
- (x1 . ,x1)
- (y1 . ,(- y1))
- (x2 . ,x2)
- (y2 . ,(- y2)))
- alist)))
+ `((stroke-linejoin . "round")
+ (stroke-linecap . "round")
+ (stroke-width . ,thick)
+ (stroke . "currentColor")
+ (x1 . ,x1)
+ (y1 . ,(- y1))
+ (x2 . ,x2)
+ (y2 . ,(- y2)))
+ alist)))
(define (ellipse x-radius y-radius thick is-filled)
(entity
- 'ellipse ""
- '(stroke-linejoin . "round")
- '(stroke-linecap . "round")
- `(fill . ,(if is-filled "currentColor" "none"))
- `(stroke . "currentColor")
- `(stroke-width . ,thick)
- `(rx . ,x-radius)
- `(ry . ,y-radius)))
+ 'ellipse ""
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ `(fill . ,(if is-filled "currentColor" "none"))
+ `(stroke . "currentColor")
+ `(stroke-width . ,thick)
+ `(rx . ,x-radius)
+ `(ry . ,y-radius)))
+
+(define (partial-ellipse x-radius y-radius start-angle end-angle thick connect fill)
+ (define (make-ellipse-radius x-radius y-radius angle)
+ (/ (* x-radius y-radius)
+ (sqrt (+ (* (* y-radius y-radius)
+ (* (cos angle) (cos angle)))
+ (* (* x-radius x-radius)
+ (* (sin angle) (sin angle)))))))
+ (let*
+ ((new-start-angle (* PI-OVER-180 (angle-0-360 start-angle)))
+ (start-radius (make-ellipse-radius x-radius y-radius new-start-angle))
+ (new-end-angle (* PI-OVER-180 (angle-0-360 end-angle)))
+ (end-radius (make-ellipse-radius x-radius y-radius new-end-angle))
+ (epsilon 1.5e-3)
+ (x-end (- (* end-radius (cos new-end-angle))
+ (* start-radius (cos new-start-angle))))
+ (y-end (- (* end-radius (sin new-end-angle))
+ (* start-radius (sin new-start-angle)))))
+ (if (and (< (abs x-end) epsilon) (< (abs y-end) epsilon))
+ (entity
+ 'ellipse ""
+ `(fill . ,(if fill "currentColor" "none"))
+ `(stroke . "currentColor")
+ `(stroke-width . ,thick)
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ '(cx . 0)
+ '(cy . 0)
+ `(rx . ,x-radius)
+ `(ry . ,y-radius))
+ (entity
+ 'path ""
+ `(fill . ,(if fill "currentColor" "none"))
+ `(stroke . "currentColor")
+ `(stroke-width . ,thick)
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ (cons
+ 'd
+ (string-append
+ (ly:format
+ "M~4f ~4fA~4f ~4f 0 ~4f 0 ~4f ~4f"
+ (* start-radius (cos new-start-angle))
+ (- (* start-radius (sin new-start-angle)))
+ x-radius
+ y-radius
+ (if (> 0 (- new-start-angle new-end-angle)) 0 1)
+ (* end-radius (cos new-end-angle))
+ (- (* end-radius (sin new-end-angle))))
+ (if connect
+ (ly:format "L~4f,~4f"
+ (* start-radius (cos new-start-angle))
+ (- (* start-radius (sin new-start-angle))))
+ "")))))))
(define (embedded-svg string)
string)
-(define (glyph-string font size cid glyphs)
+(define (embedded-glyph-string font size cid glyphs)
(define path "")
(if (= 1 (length glyphs))
- (set! path (feta-alphabet-to-path font size (car glyphs)))
+ (set! path (music-string-to-path font size (car glyphs)))
(begin
(set! path
(string-append (eo 'g)
(string-join
(map (lambda (x)
- (feta-alphabet-to-path font size x))
+ (music-string-to-path font size x))
glyphs)
"\n")
(ec 'g)))))
(set! next-horiz-adv 0.0)
path)
+(define (woff-glyph-string font-name size cid? w-x-y-named-glyphs)
+ (let* ((name-style (font-name-style font-name))
+ (family-designsize (regexp-exec (make-regexp "(.*)-([0-9]*)")
+ font-name))
+ (family (if (regexp-match? family-designsize)
+ (match:substring family-designsize 1)
+ font-name))
+ (design-size (if (regexp-match? family-designsize)
+ (match:substring family-designsize 2)
+ #f))
+ (scaled-size (/ size lily-unit-length))
+ (font (ly:paper-get-font paper `(((font-family . ,family)
+ ,(if design-size
+ `(design-size . design-size)))))))
+ (define (glyph-spec w x y g)
+ (let* ((charcode (ly:font-glyph-name-to-charcode font g))
+ (char-lookup (format #f "&#~S;" charcode))
+ (glyph-by-name (eoc 'altglyph `(glyphname . ,g)))
+ (apparently-broken
+ (comment "XFIXME: how to select glyph by name, altglyph is broken?")))
+ ;; what is W?
+ (ly:format
+ "<text~a font-family=\"~a\" font-size=\"~a\">~a</text>"
+ (if (or (> (abs x) 0.00001)
+ (> (abs y) 0.00001))
+ (ly:format " transform=\"translate(~4f,~4f)\"" x y)
+ " ")
+ name-style scaled-size
+ (string-regexp-substitute
+ "\n" ""
+ (string-append glyph-by-name apparently-broken char-lookup)))))
+
+ (string-join (map (lambda (x) (apply glyph-spec x))
+ (reverse w-x-y-named-glyphs)) "\n")))
+
+(define glyph-string
+ (if (not (ly:get-option 'svg-woff)) embedded-glyph-string woff-glyph-string))
+
(define (grob-cause offset grob)
"")
(define (oval x-radius y-radius thick is-filled)
(let ((x-max x-radius)
- (x-min (- x-radius))
- (y-max y-radius)
- (y-min (- y-radius)))
+ (x-min (- x-radius))
+ (y-max y-radius)
+ (y-min (- y-radius)))
(entity
- 'path ""
- '(stroke-linejoin . "round")
- '(stroke-linecap . "round")
- `(fill . ,(if is-filled "currentColor" "none"))
- `(stroke . "currentColor")
- `(stroke-width . ,thick)
- `(d . ,(ly:format "M~4f ~4fC~4f ~4f ~4f ~4f ~4f ~4fS~4f ~4f ~4f ~4fz"
- x-max 0
- x-max y-max
- x-min y-max
- x-min 0
- x-max y-min
- x-max 0)))))
-
-(define (path thick commands)
+ 'path ""
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ `(fill . ,(if is-filled "currentColor" "none"))
+ `(stroke . "currentColor")
+ `(stroke-width . ,thick)
+ `(d . ,(ly:format "M~4f ~4fC~4f ~4f ~4f ~4f ~4f ~4fS~4f ~4f ~4f ~4fz"
+ x-max 0
+ x-max y-max
+ x-min y-max
+ x-min 0
+ x-max y-min
+ x-max 0)))))
+
+(define* (path thick commands #:optional (cap 'round) (join 'round) (fill? #f))
(define (convert-path-exps exps)
(if (pair? exps)
(let*
(closepath . z))
"")))
- (cons (format "~a~a"
- svg-head (number-list->point args))
+ (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 . ,(apply string-append (convert-path-exps commands)))))
+ (let* ((line-cap-styles '(butt round square))
+ (line-join-styles '(miter round bevel))
+ (cap-style (if (not (memv cap line-cap-styles))
+ (begin
+ (ly:warning (_ "unknown line-cap-style: ~S")
+ (symbol->string cap))
+ 'round)
+ cap))
+ (join-style (if (not (memv join line-join-styles))
+ (begin
+ (ly:warning (_ "unknown line-join-style: ~S")
+ (symbol->string join))
+ 'round)
+ join)))
+ (entity 'path ""
+ `(stroke-width . ,thick)
+ `(stroke-linejoin . ,(symbol->string join-style))
+ `(stroke-linecap . ,(symbol->string cap-style))
+ '(stroke . "currentColor")
+ `(fill . ,(if fill? "currentColor" "none"))
+ `(d . ,(apply string-append (convert-path-exps commands))))))
(define (placebox x y expr)
(if (string-null? expr)
(define (polygon coords blot-diameter is-filled)
(entity
- 'polygon ""
- '(stroke-linejoin . "round")
- '(stroke-linecap . "round")
- `(stroke-width . ,blot-diameter)
- `(fill . ,(if is-filled "currentColor" "none"))
- '(stroke . "currentColor")
- `(points . ,(string-join
- (map offset->point (ly:list->offsets '() coords))))))
+ 'polygon ""
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ `(stroke-width . ,blot-diameter)
+ `(fill . ,(if is-filled "currentColor" "none"))
+ '(stroke . "currentColor")
+ `(points . ,(string-join
+ (map offset->point (ly:list->offsets '() coords))))))
(define (repeat-slash width slope thickness)
(define (euclidean-length x y)
(define (resetrotation ang x y)
"</g>\n")
+(define (resetscale)
+ "</g>\n")
+
(define (round-filled-box breapth width depth height blot-diameter)
- (entity 'rect ""
- ;; The stroke will stick out. To use stroke,
- ;; the stroke-width must be subtracted from all other dimensions.
- ;;'(stroke-linejoin . "round")
- ;;'(stroke-linecap . "round")
- ;;`(stroke-width . ,blot)
- ;;'(stroke . "red")
- ;;'(fill . "orange")
-
- `(x . ,(- breapth))
- `(y . ,(- height))
- `(width . ,(+ breapth width))
- `(height . ,(+ depth height))
- `(ry . ,(/ blot-diameter 2))
- '(fill . "currentColor")))
+ (entity
+ 'rect ""
+ ;; The stroke will stick out. To use stroke,
+ ;; the stroke-width must be subtracted from all other dimensions.
+ ;;'(stroke-linejoin . "round")
+ ;;'(stroke-linecap . "round")
+ ;;`(stroke-width . ,blot)
+ ;;'(stroke . "red")
+ ;;'(fill . "orange")
+
+ `(x . ,(- breapth))
+ `(y . ,(- height))
+ `(width . ,(+ breapth width))
+ `(height . ,(+ depth height))
+ `(ry . ,(/ blot-diameter 2))
+ '(fill . "currentColor")))
(define (setcolor r g b)
(format "<g color=\"rgb(~a%, ~a%, ~a%)\">\n"
(ly:format "<g transform=\"rotate(~4f, ~4f, ~4f)\">\n"
(- ang) x (- y)))
+(define (setscale x y)
+ (ly:format "<g transform=\"scale(~4f, ~4f)\">\n"
+ x y))
+
(define (text font string)
(dispatch `(fontify ,font ,(entity 'tspan (string->entities string)))))
(ec 'a)))
(define (utf-8-string pango-font-description string)
- (dispatch `(fontify ,pango-font-description ,(entity 'tspan string))))
+ (let ((escaped-string (string-regexp-substitute
+ "<" "<"
+ (string-regexp-substitute "&" "&" string))))
+ (dispatch `(fontify ,pango-font-description
+ ,(entity 'tspan escaped-string)))))
projects / lilypond.git / blobdiff