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;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
;;;; Copyright (C) 2004--2020 Jan Nieuwenhuizen <[email protected]>
;;;; Patrick McCarty <[email protected]>
;;;;
;;;; 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/>.
;;;; Recommendations:
;;;; http://www.w3.org/TR/SVG11/
;;;; http://www.w3.org/TR/SVGTiny12/
;;;;
;;;; Working draft:
;;;; http://www.w3.org/TR/SVGPrint/ -- for <pageSet> and <page>
;;;; TODO:
;;;; * Once <pageSet> and <page> are supported by Inkscape and
;;;; other user agents, add a -d option (-dsvg-multiple-page)
;;;; that will create a single SVG file containing all pages
;;;; of output. --pmccarty
(define-module (scm framework-svg))
(use-modules
(guile)
(lily)
(scm page)
(scm paper-system)
(scm output-svg)
(scm clip-region)
(srfi srfi-1)
(srfi srfi-2)
(srfi srfi-13)
(ice-9 regex))
(define format ergonomic-simple-format)
(define (svg-begin . rest)
(string-append
(eo 'svg #t
'(xmlns . "http://www.w3.org/2000/svg")
'(xmlns:xlink . "http://www.w3.org/1999/xlink")
'(version . "1.2")
`(width . ,(ly:format "~2fmm" (first rest)))
`(height . ,(ly:format "~2fmm" (second rest)))
`(viewBox . ,(ly:format "~4f ~4f ~4f ~4f"
(third rest) (fourth rest)
(fifth rest) (sixth rest))))
(eo 'style #t '(type . "text/css"))
"<![CDATA[
tspan { white-space: pre; }
"))
(define (svg-end)
(ec 'svg))
(define (mkdirs dir-name mode)
(let loop ((dir-name (string-split dir-name #\/)) (root ""))
(if (pair? dir-name)
(let ((dir (string-append root (car dir-name))))
(if (not (file-exists? dir))
(mkdir dir mode))
(loop (cdr dir-name) (string-append dir "/"))))))
(define output-dir #f)
(define (svg-define-font font font-name scaling)
(let* ((base-file-name (basename (if (list? font) (pango-pf-file-name font)
(ly:font-file-name font)) ".otf"))
(woff-file-name (string-regexp-substitute "([.]otf)?$" ".woff"
base-file-name))
(woff-file (or (ly:find-file woff-file-name) "/no-such-file.woff"))
(url (string-append output-dir "/fonts/" (lilypond-version) "/"
(basename woff-file-name)))
(lower-name (string-downcase font-name)))
(if (file-exists? woff-file)
(begin
(if (not (file-exists? url))
(begin
(ly:message (_ "Updating font into: ~a") url)
(mkdirs (string-append output-dir "/" (dirname url)) #o700)
(copy-file woff-file url)
(ly:progress "\n")))
(ly:format
"@font-face {
font-family: '~a';
font-weight: normal;
font-style: normal;
src: url('~a');
}
"
font-name url))
"")))
(define (style-defs-end)
(string-append
"]]>
"
(ec 'style)))
(define (woff-header paper dir)
"TODO:
* add (ly:version) to font name
* copy woff font with version alongside svg output
"
(set! output-dir dir)
(define-fonts paper svg-define-font svg-define-font))
(define (dump-page paper filename page page-number page-count)
(cond ( (ly:get-option 'memory-output)
(let* (
(outport (open-output-string))
(outputter (dump-page-with-port outport paper filename page page-number page-count))
)
(lyx:output-port filename outport)
(ly:outputter-close outputter)
)
)
(else
(let* (
(outport (cond-expand
(guile-2 (open-output-file filename #:encoding "UTF-8"))
(else (open-file filename "wb"))))
(outputter (dump-page-with-port outport paper filename page page-number page-count))
)
(ly:outputter-close outputter)
)
)
)
)
(define (dump-page-with-port outport paper filename page page-number page-count)
(let* (
(outputter (ly:make-paper-outputter outport stencil-dispatch-alist))
(dump (lambda (str) (display str (ly:outputter-port outputter))))
(lookup (lambda (x) (ly:output-def-lookup paper x)))
(unit-length (lookup 'output-scale))
(output-scale (* lily-unit->mm-factor unit-length))
(device-width (lookup 'paper-width))
(device-height (lookup 'paper-height))
(page-width (* output-scale device-width))
(page-height (* output-scale device-height))
(eval-svg (lambda (expr)
(ly:outputter-output-scheme outputter expr))))
(if (ly:get-option 'svg-woff)
(eval-svg `(set-paper ,paper)))
(dump (svg-begin page-width page-height
0 0 device-width device-height))
(if (ly:get-option 'svg-woff)
(eval-svg `(set-paper #f)))
(if (ly:get-option 'svg-woff)
(dump (woff-header paper (dirname filename))))
(dump (style-defs-end))
(dump (comment (format #f "Page: ~S/~S" page-number page-count)))
(eval-svg `(set-unit-length ,unit-length))
(ly:outputter-dump-stencil outputter page)
(dump (svg-end))
outputter))
(define (dump-preview paper stencil filename)
(let* ((outputter (ly:make-paper-outputter
(cond-expand
(guile-2 (open-output-file filename #:encoding "UTF-8"))
(else (open-file filename "wb")))
stencil-dispatch-alist))
(dump (lambda (str) (display str (ly:outputter-port outputter))))
(lookup (lambda (x) (ly:output-def-lookup paper x)))
(unit-length (lookup 'output-scale))
(x-extent (ly:stencil-extent stencil X))
(y-extent (ly:stencil-extent stencil Y))
(left-x (car x-extent))
(top-y (cdr y-extent))
(device-width (interval-length x-extent))
(device-height (interval-length y-extent))
(output-scale (* lily-unit->mm-factor unit-length))
(svg-width (* output-scale device-width))
(svg-height (* output-scale device-height))
(eval-svg (lambda (expr)
(ly:outputter-output-scheme outputter expr))))
(if (ly:get-option 'svg-woff)
(eval-svg `(set-paper ,paper)))
(dump (svg-begin svg-width svg-height
left-x (- top-y) device-width device-height))
(if (ly:get-option 'svg-woff)
(eval-svg `(set-paper #f)))
(if (ly:get-option 'svg-woff)
(dump (woff-header paper (dirname filename))))
(dump (style-defs-end))
(eval-svg `(set-unit-length ,unit-length))
(ly:outputter-dump-stencil outputter stencil)
(dump (svg-end))
(ly:outputter-close outputter)))
(define (dump-preview-bbox paper stencil filename bbox)
(let* ((outputter (ly:make-paper-outputter (open-file filename "wb") stencil-dispatch-alist))
(dump (lambda (str) (display str (ly:outputter-port outputter))))
(lookup (lambda (x) (ly:output-def-lookup paper x)))
(unit-length (lookup 'output-scale))
(output-scale (* lily-unit->mm-factor unit-length))
(left-x (list-ref bbox 0))
(top-y (list-ref bbox 1))
(device-width (list-ref bbox 2))
(device-height (list-ref bbox 3))
;; BUG: Height calculation is off - optional & disabled
;; (svg-width (* output-scale device-width))
;; (svg-height (* output-scale device-height))
(eval-svg (lambda (expr)
(ly:outputter-output-scheme outputter expr))))
(if (ly:get-option 'svg-woff)
(eval-svg `(set-paper ,paper)))
(dump (svg-begin "" ""
left-x (- top-y) device-width device-height))
(if (ly:get-option 'svg-woff)
(eval-svg `(set-paper #f)))
(if (ly:get-option 'svg-woff)
(dump (woff-header paper (dirname filename))))
(eval-svg `(set-unit-length ,unit-length))
(ly:outputter-dump-stencil outputter stencil)
(dump (svg-end))
(ly:outputter-close outputter)))
(define (clip-systems-to-region basename paper systems region)
(let* ((extents-system-pairs
(filtered-map (lambda (paper-system)
(let* ((x-ext (system-clipped-x-extent
(paper-system-system-grob paper-system)
region)))
(if x-ext
(cons x-ext paper-system)
#f)))
systems))
(count 0))
(for-each
(lambda (ext-system-pair)
(let* ((xext (car ext-system-pair))
(paper-system (cdr ext-system-pair))
(yext (paper-system-extent paper-system Y))
(bbox (list (car xext) (car yext)
(cdr xext) (cdr yext)))
(paper-system (cdr ext-system-pair))
(filename (if (< 0 count)
(format #f "~a-~a.svg" basename count)
(string-append basename ".svg"))))
(set! count (1+ count))
(dump-preview-bbox paper
(paper-system-stencil paper-system)
filename bbox)))
extents-system-pairs)))
(define (clip-system-SVG basename paper-book)
(define (clip-score-systems basename systems)
(let* ((layout (ly:grob-layout (paper-system-system-grob (car systems))))
(regions (ly:output-def-lookup layout 'clip-regions)))
(for-each
(lambda (region)
(clip-systems-to-region
(format #f "~a-from-~a-to-~a-clip"
basename
(rhythmic-location->file-string (car region))
(rhythmic-location->file-string (cdr region)))
layout systems region))
regions)))
;; partition in system lists sharing their layout blocks
(let* ((systems (ly:paper-book-systems paper-book))
(count 0)
(score-system-list '()))
(fold
(lambda (system last-system)
(if (not (and last-system
(equal? (paper-system-layout last-system)
(paper-system-layout system))))
(set! score-system-list (cons '() score-system-list)))
(if (paper-system-layout system)
(set-car! score-system-list (cons system (car score-system-list))))
;; pass value.
system)
#f
systems)
(for-each (lambda (system-list)
;; filter out headers and top-level markup
(if (pair? system-list)
(clip-score-systems
(if (> count 0)
(format #f "~a-~a" basename count)
basename)
system-list)))
score-system-list)))
(define (output-framework basename book scopes fields)
(let* ((paper (ly:paper-book-paper book))
(page-stencils (map page-stencil (ly:paper-book-pages book)))
(page-number (1- (ly:output-def-lookup paper 'first-page-number)))
(page-count (length page-stencils))
(filename "")
(file-suffix (lambda (num)
(if (= page-count 1) "" (format #f "-~a" num)))))
(if (ly:get-option 'clip-systems) (clip-system-SVG basename book))
(for-each
(lambda (page)
(set! page-number (1+ page-number))
(set! filename (format #f "~a~a.svg"
basename
(file-suffix page-number)))
(dump-page paper filename page page-number page-count))
page-stencils)))
(define-public (output-classic-framework basename book scopes fields)
(let* ((paper (ly:paper-book-paper book))
(page-stencils (map paper-system-stencil (ly:paper-book-systems book)))
(page-number (1- (ly:output-def-lookup paper 'first-page-number)))
(page-count (length page-stencils))
(filename "")
(file-suffix (lambda (num)
(if (= page-count 1) "" (format #f "-~a" num)))))
(if (ly:get-option 'clip-systems) (clip-system-SVG basename book))
(for-each
(lambda (page)
(set! page-number (1+ page-number))
(set! filename (format #f "~a~a.svg"
basename
(file-suffix page-number)))
(dump-page paper filename page page-number page-count))
page-stencils)))
(define (output-preview-framework basename book scopes fields)
(let* ((paper (ly:paper-book-paper book))
(systems (relevant-book-systems book))
(to-dump-systems (relevant-dump-systems systems)))
(dump-preview paper
(stack-stencils Y DOWN 0.0
(map paper-system-stencil
(reverse to-dump-systems)))
(format #f "~a.preview.svg" basename))))
(define (output-crop-framework basename book scopes fields)
(let* ((paper (ly:paper-book-paper book))
(systems (relevant-book-systems book))
(page-stencils (stack-stencils Y DOWN 0.0
(map paper-system-stencil
(reverse (reverse systems))))))
(if (ly:get-option 'clip-systems) (clip-system-SVG basename book))
(dump-preview paper page-stencils (format #f "~a.cropped.svg" basename))))
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