;;;; output-svg.scm -- implement Scheme output routines for SVG1
;;;;
;;;; source file of the GNU LilyPond music typesetter
-;;;;
+;;;;
;;;; (c) 2002--2004 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; http://www.w3.org/TR/SVG11
+;;;; http://www.w3.org/TR/SVG12/ -- page, pageSet in draft
;;;; TODO:
-;;;; * check: blot+scaling
+;;;; * font selection: name, size, design size
+;;;; * .cff MUST NOT be in fc's fontpath.
+;;;; - workaround: remove mf/out from ~/.fonts.conf,
+;;;; instead add ~/.fonts and symlink all /mf/out/*otf there.
+;;;; - bug in fontconfig/freetype/pango?
+
;;;; * inkscape page/pageSet support
;;;; * inkscape SVG-font support
;;;; - use fontconfig/fc-cache for now, see output-gnome.scm
(display
(string-append "undefined: " (symbol->string keyword) "\n"))
""))))))
-
+
;; Helper functions
(define-public (attributes attributes-alist)
(apply string-append
(define (font-size font)
(let* ((designsize (ly:font-design-size font))
(magnification (* (ly:font-magnification font)))
- (ops 2)
- (scaling (* ops magnification designsize)))
+ (scaling (* output-scale magnification designsize)))
(debugf "scaling:~S\n" scaling)
(debugf "magnification:~S\n" magnification)
(debugf "design:~S\n" designsize)
(define (integer->entity integer)
(format #f "&#x~x;" integer))
-
+
(define (char->entity char)
(integer->entity (char->integer char)))
-
+
(define (string->entities string)
(apply string-append
(map (lambda (x) (char->entity x)) (string->list string))))
+;; FIXME: font can be pango font-name or smob
+;; determine size and style properly.
(define (svg-font font)
- (let* ((encoding (ly:font-encoding font))
- (anchor (if (memq encoding '(fetaMusic fetaBraces)) 'start 'start))
- (family (font-family font)))
- (format #f "font-family:~a;font-style:~a;font-size:~a;text-anchor:~S;"
- (otf-name-mangling font family)
- (otf-style-mangling font family)
- (font-size font) anchor)))
+ (let ((name-style (if (string? font) (list font "Regular")
+ (font-name-style font)))
+ (size (if (string? font) 12 (font-size font)))
+ (anchor "west"))
+ (format #f "font-family:~a;font-style:~a;font-size:~a;text-anchor:~a;"
+ (car name-style)
+ (cadr name-style)
+ size anchor)))
(define (fontify font expr)
(entity 'text expr (cons 'style (svg-font font))))
-;; FIXME
-(define-public (otf-name-mangling font family)
- ;; Hmm, family is bigcheese20/26?
- (if (string=? (substring family 0 (min (string-length family) 9))
- "bigcheese")
- "LilyPond"
- (if (string=? family "aybabtu")
- "LilyPondBraces"
- family)))
-
-(define-public (otf-style-mangling font family)
- ;; Hmm, family is bigcheese20/26?
- (if (string=? (substring family 0 (min (string-length family) 9))
- "bigcheese")
- (substring family 9)
- "Regular"))
-
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; stencil outputters
;;;
(ly:all-stencil-expressions)
(ly:all-output-backend-commands)))
-(define (beam width slope thick blot-diameter)
+(define (rect-beam width slope thick blot-diameter)
(let* ((x width)
(y (* slope width))
- (z (sqrt (+ (sqr x) (sqr y)))))
+ (z (/ y x)))
(entity 'rect ""
;; The stroke will stick out. To use stroke,
;; the stroke-width must be subtracted from all other dimensions.
`(x . 0)
`(y . ,(- (/ thick 2)))
- `(width . ,(+ width (* slope blot-diameter)))
- `(height . ,thick)
+ `(width . ,width)
+ `(height . ,(+ thick (* (abs z) (/ thick 2))))
`(rx . ,(/ blot-diameter 2))
`(transform . ,(string-append
- (format #f "matrix (~f, ~f, 0, 1, 0, 0)"
- (/ x z) (* -1 (/ y z)))
+ (format #f "matrix (1, ~f, 0, 1, 0, 0)" (- z))
(format #f " scale (~f, ~f)"
output-scale output-scale))))))
+(define (beam width slope thick blot-diameter)
+ (let* ((b blot-diameter)
+ (t (- thick b))
+ (w (- width b))
+ (h (* w slope)))
+ (entity 'polygon ""
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ `(stroke-width . ,blot-diameter)
+ '(stroke . "black")
+ '(fill . "black")
+ `(points . ,(string-join
+ (map offset->point
+ (list (cons (/ b 2) (/ t 2))
+ (cons (+ w (/ b 2)) (+ h (/ t 2)))
+ (cons (+ w (/ b 2)) (+ h (- (/ t 2))))
+ (cons (/ b 2) (- (/ t 2)))))))
+ `(transform
+ . ,(format #f "scale (~f, -~f)" output-scale output-scale)))))
+
+(define (path-beam width slope thick blot-diameter)
+ (let* ((b blot-diameter)
+ (t (- thick b))
+ (w (- width b))
+ (h (* w slope)))
+ (entity 'path ""
+ '(stroke-linejoin . "round")
+ '(stroke-linecap . "round")
+ `(stroke-width . ,blot-diameter)
+ '(stroke . "black")
+ '(fill . "black")
+ `(d . ,(format #f "M ~S,~S l ~S,~S l ~S,~S l ~S,~S l ~S,~S"
+ (/ b 2) (/ t 2)
+ w (- h)
+ 0 (- t)
+ (- w) h
+ 0 t))
+ `(transform
+ . ,(format #f "scale (~f, ~f)" output-scale output-scale)))))
+
(define (bezier-sandwich lst thick)
(let* ((first (list-tail lst 4))
(first-c0 (car (list-tail first 3)))
(- (* output-scale y))))))
(define (polygon coords blot-diameter)
- (entity 'polygon ""
+ (entity 'polygon ""
'(stroke-linejoin . "round")
'(stroke-linecap . "round")
`(stroke-width . ,blot-diameter)
`(width . ,(+ breapth width))
`(height . ,(+ depth height))
`(ry . ,(/ blot-diameter 2))
- ;;`(transform . ,(scale))))
`(transform
. ,(format #f "scale (~f, ~f)" output-scale output-scale))))
(define (text font string)
(dispatch `(fontify ,font ,(entity 'tspan (string->entities string)))))
+
+(define (utf8-string pango-font-description string)
+ (dispatch `(fontify ,pango-font-description ,(entity 'tspan string))))
projects / lilypond.git / blobdiff