-;;;; 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--2010 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; Patrick McCarty <pnorcks@gmail.com>
+;;;;
+;;;; 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)
(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 '())
(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
`(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 (connected-shape pointlist thick x-scale y-scale connect fill)
+ (entity
+ 'path ""
+ `(fill . ,(if fill "currentColor" "none"))
+ `(stroke . "currentColor")
+ `(stroke-width . ,thick)
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ (cons
+ 'd
+ (ly:format
+ "M0 0~a ~a"
+ (string-concatenate
+ (map (lambda (x)
+ (apply
+ (if (eq? (length x) 6)
+ (lambda (x1 x2 x3 x4 x5 x6)
+ (ly:format "C~4f ~4f ~4f ~4f ~4f ~4f"
+ (* x1 x-scale)
+ (- (* x2 y-scale))
+ (* x3 x-scale)
+ (- (* x4 y-scale))
+ (* x5 x-scale)
+ (- (* x6 y-scale))))
+ (lambda (x1 x2)
+ (ly:format "L~4f ~4f"
+ (* x-scale x1)
+ (- (* y-scale x2)))))
+ x))
+ pointlist))
+ (if connect "z " "")))))
+
(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)
"")
(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)))))