-;;;; framework-svg.scm --
+;;
+;; framework-svg.scm -- structure for SVG output
;;;;
;;;; source file of the GNU LilyPond music typesetter
;;;;
-;;;; (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; (c) 2004--2008 Jan Nieuwenhuizen <janneke@gnu.org>
(define-module (scm framework-svg))
-(use-modules (guile) (lily))
-(use-modules (srfi srfi-2) (ice-9 regex))
+(use-modules (guile)
+ (lily)
+ (scm page)
+ (scm output-svg))
-;; FIXME: 0.62 to get paper size right
-(define output-scale (* 0.62 scale-to-unit))
+(use-modules (srfi srfi-1)
+ (srfi srfi-2)
+ (srfi srfi-13)
+ (ice-9 regex))
-(define-public (output-framework outputter book scopes fields basename)
- (let* ((paper (ly:paper-book-paper book))
- (pages (ly:paper-book-pages book))
+(define format ergonomic-simple-format)
+
+(define-public (output-framework basename book scopes fields)
+ (let* ((filename (format "~a.svg" basename))
+ (outputter (ly:make-paper-outputter (open-file filename "wb")
+ (ly:get-option 'backend)))
+ (dump (lambda (str) (display str (ly:outputter-port outputter))))
+ (paper (ly:paper-book-paper book))
+ (unit-length (ly:output-def-lookup paper 'output-scale))
+ (output-scale (* lily-unit->mm-factor
+ unit-length))
+ (page-stencils (map page-stencil (ly:paper-book-pages book)))
(landscape? (eq? (ly:output-def-lookup paper 'landscape) #t))
- (page-number (1- (ly:output-def-lookup paper 'firstpagenumber)))
- (page-count (length pages))
- (hsize (ly:output-def-lookup paper 'hsize))
- (vsize (ly:output-def-lookup paper 'vsize))
- (page-width (inexact->exact (ceiling (* output-scale hsize))))
- (page-height (inexact->exact (ceiling (* output-scale vsize)))))
+ (page-number (1- (ly:output-def-lookup paper 'first-page-number)))
+ (page-count (length page-stencils))
+ (paper-width (ly:output-def-lookup paper 'paper-width))
+ (paper-height (ly:output-def-lookup paper 'paper-height))
+ (page-width (inexact->exact (ceiling (* output-scale paper-width))))
+ (page-height (inexact->exact (ceiling (* output-scale paper-height))))
+ (page-set? (or (> page-count 1) landscape?)))
- (ly:outputter-dump-string outputter xml-header)
- (ly:outputter-dump-string
- outputter
- (comment "Created with GNU LilyPond (http://lilypond.org)"))
- (ly:outputter-dump-string
- outputter (format #f "<svg id='svg1' width='~smm' height='~smm'>\n"
- page-width page-height))
- (ly:outputter-dump-string
- outputter "<g transform='translate (10, 10) scale (1)'>\n")
-
-; (for-each
-; (lambda (x)
-; (ly:outputter-dump-string outputter x))
-; (cons
-; (page-header paper page-count)
-; (preamble paper)))
-
- (for-each
- (lambda (page)
- (set! page-number (1+ page-number))
- (dump-page outputter page page-number page-count landscape?))
- pages)
- (ly:outputter-dump-string outputter "\n</g>\n</svg>\n")))
+ (ly:outputter-output-scheme outputter
+ `(begin (set! lily-unit-length ,unit-length) ""))
+ (dump (eo 'svg
+ '(xmlns . "http://www.w3.org/2000/svg")
+ '(xmlns:xlink . "http://www.w3.org/1999/xlink")
+ '(version . "1.2")
-(define (comment s)
- (string-append "<!-- " s " !-->\n"))
+ ;; Argggghhhh: SVG takes the px <-> mm mapping from the windowing system
+ `(width . ,(format "~s" page-width))
+ `(height . ,(format "~s" page-height))))
+
+ (dump (dump-fonts outputter paper))
+ (dump
+ (string-append
+ ;; FIXME: only use pages if there are more than one, pageSet is
+ ;; not supported by all SVG applications yet.
+ (if page-set? (eo 'pageSet) "")
+ (eo 'g `(transform . ,(format "scale(~a, ~a) "
+ output-scale output-scale)))))
+
+ (for-each
+ (lambda (page)
+ (set! page-number (1+ page-number))
+ (dump-page outputter page page-number page-count landscape? page-set?))
+ page-stencils)
+
+ (if page-set? (eo 'pageSet) "")
+ (dump
+ (string-append
+ (ec 'g)
+ (if page-set? (ec 'pageSet) "")
+ (ec 'svg)))
+
+ (ly:outputter-close outputter)
+ ))
-;; FIXME: gulp from file
-(define xml-header
- "<?xml version='1.0' encoding='UTF-8' standalone='no'?>
-<!DOCTYPE svg PUBLIC '-//W3C//DTD SVG 20010904//EN'
-'http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd'>
-")
+(define (dump-page outputter page page-number page-count landscape? page-set?)
+ (define (dump str) (display str (ly:outputter-port outputter)))
+
+ (dump (comment (format "Page: ~S/~S" page-number page-count)))
+ (if (or landscape? page-set?)
+ (dump
+ (if landscape?
+ (eo 'page '(page-orientation . "270"))
+ (eo 'page))))
+
+ (dump (string-append (eo 'g )))
+ (ly:outputter-dump-stencil outputter page)
+ (dump (string-append (ec 'g)))
+ (if (or landscape? page-set?)
+ (dump (ec 'page))))
-(define (dump-page outputter page page-number page-count landscape?)
- (ly:outputter-dump-string
- outputter
- (string-append
- (comment (format #f "Page: ~S/~S" page-number page-count))
- ;;(format #f "<g transform='translate (0, ~f)'>\n" (* output-scale y))))
- "<g>\n"))
+(define (embed-font string)
+ (let ((start (string-contains string "<defs>"))
+ (end (string-contains string "</defs>")))
+ (substring string (+ start 7) (- end 1))))
- ;; FIXME:landscape
- (ly:outputter-dump-stencil outputter page)
+(define (dump-fonts outputter paper)
+ (let* ((fonts (ly:paper-fonts paper))
+ (font-names (uniq-list (sort
+ (filter string?
+ (map ly:font-file-name fonts)) string<?)))
+ (svgs (map
+ (lambda (x)
+ (let ((file-name (ly:find-file (string-append x ".svg"))))
+ (if file-name (embed-font (cached-file-contents file-name))
+ (begin (ly:warning "cannot find SVG font ~S" x) ""))))
+ (filter string? font-names))))
+ (entity 'defs (string-join svgs "\n"))))
- (ly:outputter-dump-string
- outputter
- (string-append
- (comment (format #f "End Page ~S/~S" page-number page-count))
- "</g>\n")))
projects / lilypond.git / blobdiff