X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Fframework-ps.scm;h=c7214da3c597d25c5dcf49210a1f90efe829ab1c;hb=fcc93138815645e9ddd3270507c8649d0152cc6a;hp=22ee5dd1e3ceda6c0defa7cafb89c0752b223aff;hpb=485bf4739de4c47d07b9f694eafaa1165d06038d;p=lilypond.git diff --git a/scm/framework-ps.scm b/scm/framework-ps.scm index 22ee5dd1e3..c7214da3c5 100644 --- a/scm/framework-ps.scm +++ b/scm/framework-ps.scm @@ -1,132 +1,82 @@ -;;;; framework-ps.scm -- +;;;; framework-ps.scm -- structure for PostScript output ;;;; ;;;; source file of the GNU LilyPond music typesetter ;;;; -;;;; (c) 2004 Han-Wen Nienhuys +;;;; (c) 2004--2007 Han-Wen Nienhuys (define-module (scm framework-ps)) -(use-modules (ice-9 regex) - (ice-9 string-fun) - (ice-9 format) +;;; this is still too big a mess. + +(use-modules (ice-9 string-fun) (guile) + (scm page) + (scm paper-system) (srfi srfi-1) (srfi srfi-13) + (scm clip-region) (lily)) -(define mm-to-bigpoint - (/ 72 25.4)) +(define format ergonomic-simple-format) + +(define framework-ps-module (current-module)) + +;;(define pdebug stderr) +(define (pdebug . rest) #f) -(define-public (ps-font-command font . override-coding) - (let* ((name (ly:font-filename font)) - (magnify (ly:font-magnification font)) - (coding-alist (ly:font-encoding-alist font)) - (input-encoding (assoc-get 'input-name coding-alist)) - (font-encoding (assoc-get 'output-name coding-alist)) - (coding-command (if (null? override-coding) - (if (equal? input-encoding font-encoding) - #f font-encoding) - (car override-coding)))) +(define-public (ps-font-command font) + (let* ((name (ly:font-file-name font)) + (magnify (ly:font-magnification font))) (string-append - "magfont" (string-encode-integer (hashq name 1000000)) - "m" (string-encode-integer (inexact->exact (round (* 1000 magnify)))) - (if (not coding-command) "" (string-append "e" coding-command))))) + "magfont" + (ly:string-substitute + " " "_" + (ly:string-substitute + "/" "_" + (ly:string-substitute + "%" "_" name))) + "m" (string-encode-integer (inexact->exact (round (* 1000 magnify))))))) (define (tex-font? fontname) (or (equal? (substring fontname 0 2) "cm") (equal? (substring fontname 0 2) "ec"))) -(define (load-fonts bookpaper) - (let* ((fonts (ly:bookpaper-fonts bookpaper)) - (font-names (uniq-list (sort (map ly:font-filename fonts) stringpfa bpath)) - (else - (ly:warn "Can't find PFA font ~S" x) - "")))) - (filter string? font-names)))) - - (string-join pfas "\n"))) - -(define (define-fonts bookpaper) - - (define font-list (ly:bookpaper-fonts bookpaper)) +(define (define-fonts paper) + (define font-list (ly:paper-fonts paper)) (define (define-font command fontname scaling) (string-append - "/" command " { /" fontname " findfont " - (ly:number->string scaling) " output-scale div scalefont } bind def\n")) + "/" command " { /" fontname " " (ly:number->string scaling) " output-scale div selectfont } bind def\n")) - (define (reencode-font plain encoding command) - (let ((coding-vector (get-coding-command encoding))) - (string-append - plain " " coding-vector " /" command " reencode-font\n" - "/" command "{ /" command " findfont 1 scalefont } bind def\n"))) - - (define (font-load-command font) (let* ((specced-font-name (ly:font-name font)) (fontname (if specced-font-name - specced-font-name - (ly:font-filename font))) - - (coding-alist (ly:font-encoding-alist font)) - (input-encoding (assoc-get 'input-name coding-alist)) - (font-encoding (assoc-get 'output-name coding-alist)) + specced-font-name + (ly:font-file-name font))) (command (ps-font-command font)) + ;; FIXME -- see (ps-font-command ) - (plain (ps-font-command font #f)) + (plain (ps-font-command font)) (designsize (ly:font-design-size font)) (magnification (* (ly:font-magnification font))) - (ops (ly:output-def-lookup bookpaper 'outputscale)) + (ops (ly:output-def-lookup paper 'output-scale)) (scaling (* ops magnification designsize))) - (string-append - (define-font plain fontname scaling) - (if (or (equal? input-encoding font-encoding) - ;; guh - (equal? font-encoding "fetaBraces") - (equal? font-encoding "fetaNumber") - (equal? font-encoding "fetaMusic") - (equal? font-encoding "parmesanMusic")) - "" - (reencode-font plain input-encoding command))))) - - (define (font-load-encoding encoding) - (let ((filename (get-coding-filename encoding))) - (ly:gulp-file (ly:kpathsea-expand-path filename)))) - - (let* ((encoding-list (map (lambda (x) - (assoc-get 'input-name - (ly:font-encoding-alist x))) - font-list)) - (encodings (uniq-list (sort-list (filter string? encoding-list) - stringstring, mostly - (define (value->string val) +(define (output-variables layout) + ;; FIXME: duplicates output-layout's scope-entry->string, mostly + (define (value->string val) (cond ((string? val) (string-append "(" val ")")) ((symbol? val) (symbol->string val)) @@ -136,125 +86,708 @@ (define (output-entry ps-key ly-key) (string-append "/" ps-key " " - (value->string (ly:output-def-lookup paper ly-key)) " def \n")) + (value->string (ly:output-def-lookup layout ly-key)) " def\n")) (string-append - "/lily-output-units " (number->string mm-to-bigpoint) " def %% milimeter \n" - (output-entry "staff-line-thickness" 'linethickness) - (output-entry "line-width" 'linewidth) - (output-entry "paper-size" 'papersize) - (output-entry "staff-height" 'staffheight) ;junkme. + "/lily-output-units " + (number->string (/ (ly:bp 1))) + " def %% millimeter\n" + (output-entry "staff-line-thickness" 'line-thickness) + (output-entry "line-width" 'line-width) + (output-entry "paper-size" 'papersizename) + (output-entry "staff-height" 'staff-height) ;junkme. "/output-scale " - (number->string (ly:output-def-lookup paper 'outputscale)) - " lily-output-units mul def \n")) - -(define (dump-page outputter page page-number page-count) - (ly:outputter-dump-string outputter + (number->string (ly:output-def-lookup layout 'output-scale)) + " def\n" + (output-entry "page-height" 'paper-height) + (output-entry "page-width" 'paper-width))) + +(define (dump-page outputter page page-number page-count landscape?) + (ly:outputter-dump-string + outputter (string-append - "%%Page: " - (number->string page-number) " " (number->string page-count) "\n" - "0 0 start-system { " + (format "%%Page: ~a ~a\n" page-number page-number) + "%%BeginPageSetup\n" + (if landscape? + "page-width output-scale lily-output-units mul mul 0 translate 90 rotate\n" + "") + "%%EndPageSetup\n" + + "true setstrokeadjust\n" + "gsave 0 paper-height translate " "set-ps-scale-to-lily-scale " "\n")) (ly:outputter-dump-stencil outputter page) - (ly:outputter-dump-string outputter "} stop-system \nshowpage\n")) - -(define (eps-header bookpaper bbox) + (ly:outputter-dump-string outputter "stroke grestore \nshowpage\n")) + +(define (supplies-or-needs paper load-fonts?) + (define (extract-names font) + (if (ly:pango-font? font) + (map car (ly:pango-font-physical-fonts font)) + (list (ly:font-name font)))) + + (let* ((fonts (ly:paper-fonts paper)) + (names (apply append (map extract-names fonts)))) + + (apply string-append + (map (lambda (f) + (format + (if load-fonts? + "%%DocumentSuppliedResources: font ~a\n" + "%%DocumentNeededResources: font ~a\n") + f)) + (uniq-list (sort names stringstring bbox) " ") "\n" + "%%Creator: LilyPond " + (lilypond-version) + "\n" + "%%BoundingBox: " + (string-join (map ly:number->string bbox) " ") "\n" + "%%Orientation: " + (if (eq? (ly:output-def-lookup paper 'landscape) #t) + "Landscape\n" + "Portrait\n") + (supplies-or-needs paper load-fonts?) "%%EndComments\n")) -(define (page-header bookpaper page-count) +(define (ps-document-media paper) + (let* ((w (/ (* + (ly:output-def-lookup paper 'output-scale) + (ly:output-def-lookup paper 'paper-width)) (ly:bp 1))) + (h (/ (* + (ly:output-def-lookup paper 'paper-height) + (ly:output-def-lookup paper 'output-scale)) + (ly:bp 1))) + (landscape? (eq? (ly:output-def-lookup paper 'landscape) #t))) + (ly:format "%%DocumentMedia: ~a ~2f ~2f ~a ~a ~a\n" + (ly:output-def-lookup paper 'papersizename) + (if landscape? h w) + (if landscape? w h) + 80 ;; weight + "()" ;; color + "()" ;; type + ))) + + +(define (file-header paper page-count load-fonts?) (string-append "%!PS-Adobe-3.0\n" - "%%Creator: creator time-stamp\n" + "%%Creator: LilyPond " + (lilypond-version) + "\n" + "%%Pages: " (number->string page-count) "\n" "%%PageOrder: Ascend\n" - "%%DocumentPaperSizes: " (ly:output-def-lookup bookpaper 'papersize) "\n")) - -(define (preamble bookpaper) - (list - (output-variables bookpaper) - (ly:gulp-file "music-drawing-routines.ps") - (ly:gulp-file "lilyponddefs.ps") - (load-fonts bookpaper) - (define-fonts bookpaper))) - -(define-public (output-framework outputter book scopes fields basename) - (let* ((bookpaper (ly:paper-book-book-paper book)) - (pages (ly:paper-book-pages book)) - (page-number 0) - (page-count (length pages))) - (for-each - (lambda (x) - (ly:outputter-dump-string outputter x)) - (cons - (page-header bookpaper page-count) - (preamble bookpaper))) + "%%Orientation: " + (if (eq? (ly:output-def-lookup paper 'landscape) #t) + "Landscape\n" + "Portrait\n") + (ps-document-media paper) + (supplies-or-needs paper load-fonts?) + "%%EndComments\n")) + +(define (procset file-name) + (format + "%%BeginResource: procset (~a) 1 0 +~a +%%EndResource +" + file-name (cached-file-contents file-name))) + +(define (embed-document file-name) + (format "%%BeginDocument: ~a +~a +%%EndDocument +" + file-name (cached-file-contents file-name))) + +(define (setup-variables paper) + (string-append + "\n" + (define-fonts paper) + (output-variables paper) + )) + +(define (cff-font? font) + (let* + ((cff-string (ly:otf-font-table-data font "CFF "))) + (> (string-length cff-string) 0))) + +(define-public (ps-embed-cff body font-set-name version) + (let* ((binary-data + (string-append + (format "/~a ~s StartData " font-set-name (string-length body)) + body)) + + (header + (format + "%%BeginResource: font ~a +%!PS-Adobe-3.0 Resource-FontSet +%%DocumentNeededResources: ProcSet (FontSetInit) +%%Title: (FontSet/~a) +%%Version: ~s +%%EndComments +%%IncludeResource: ProcSet (FontSetInit) +%%BeginResource: FontSet (~a) +/FontSetInit /ProcSet findresource begin +%%BeginData: ~s Binary Bytes +" + font-set-name font-set-name version font-set-name + (string-length binary-data))) + (footer "\n%%EndData +%%EndResource +%%EndResource\n")) + + (string-append + header + binary-data + footer))) + + +(define (write-preamble paper load-fonts? port) + (define (internal-font? file-name) + (or (string-startswith file-name "Emmentaler") + (string-startswith file-name "emmentaler") + (string-startswith file-name "aybabtu") + (string-startswith file-name "Aybabtu"))) + (define (load-font-via-GS font-name-filename) + (define (ps-load-file file-name) + (if (string? file-name) + (if (string-contains file-name (ly:get-option 'datadir)) + (begin + (set! file-name (ly:string-substitute (ly:get-option 'datadir) "" file-name)) + (format "lilypond-datadir (~a) concatstrings (r) file .loadfont" file-name)) + + (format "(~a) (r) file .loadfont\n" file-name)) + (format "% cannot find font file: ~a\n" file-name))) + + (let* ((font (car font-name-filename)) + (name (cadr font-name-filename)) + (file-name (caddr font-name-filename)) + (bare-file-name (ly:find-file file-name))) + + (cons + name + + (if (mac-font? bare-file-name) + (handle-mac-font name bare-file-name) + (cond + ((internal-font? file-name) + (ps-load-file (ly:find-file + (format "~a.otf" file-name)))) + ((string? bare-file-name) + (ps-load-file file-name)) + (else + (ly:warning (_ "cannot embed ~S=~S") name file-name) + ""))) + + ))) + + (define (dir-join a b) + (if (equal? a "") + b + (string-append a "/" b))) + + (define (dir-listing dir-name) + (define (dir-helper dir lst) + (let ((e (readdir dir))) + (if (eof-object? e) lst (dir-helper dir (cons e lst))))) + (reverse (dir-helper (opendir dir-name) '()))) + + (define (handle-mac-font name filename) + (let* + ((dir-name (tmpnam)) + (files '()) + (status 0) + (embed #f)) + + (mkdir dir-name #o700) + (set! status (ly:system + (format "cd ~a && fondu -force '~a'" dir-name filename))) + + (set! files (dir-listing dir-name)) + + (for-each + (lambda (f) + (let* + ((full-name (dir-join dir-name f))) + + (if (and (not embed) + (equal? 'regular (stat:type (stat full-name))) + (equal? name (ly:ttf-ps-name full-name))) + + (set! embed + (font-file-as-ps-string name full-name))) + + (if (or (equal? "." f) + (equal? ".." f)) + #t + (delete-file full-name)))) + + + files) + (rmdir dir-name) + + (if (not embed) + (begin + (set! embed "% failed \n") + (ly:warning (_ "cannot extract file matching ~a from ~a") name filename))) + embed)) + + (define (font-file-as-ps-string name file-name) + (let* + ((downcase-file-name (string-downcase file-name))) + + (cond + ((and file-name (string-endswith downcase-file-name ".pfa")) + (embed-document file-name)) + ((and file-name (string-endswith downcase-file-name ".pfb")) + (ly:pfb->pfa file-name)) + ((and file-name (string-endswith downcase-file-name ".ttf")) + (ly:ttf->pfa file-name)) + ((and file-name (string-endswith downcase-file-name ".otf")) + (ps-embed-cff (ly:otf->cff file-name) name 0)) + (else + (ly:warning (_ "do not know how to embed ~S=~S") name file-name) + "")))) + + (define (mac-font? bare-file-name) + (and + (eq? PLATFORM 'darwin) + bare-file-name + (or + (string-endswith bare-file-name ".dfont") + (= (stat:size (stat bare-file-name)) 0)))) + + (define (load-font font-name-filename) + (let* ((font (car font-name-filename)) + (name (cadr font-name-filename)) + (file-name (caddr font-name-filename)) + (bare-file-name (ly:find-file file-name))) + + (cons + name + (cond + + ((mac-font? bare-file-name) + (handle-mac-font name bare-file-name)) + + ((and font (cff-font? font)) + (ps-embed-cff (ly:otf-font-table-data font "CFF ") + name + 0)) + + (bare-file-name (font-file-as-ps-string name bare-file-name)) + (else + (ly:warning (_ "do not know how to embed font ~s ~s ~s") + name file-name font)))))) + + + (define (load-fonts paper) + (let* ((fonts (ly:paper-fonts paper)) + + ;; todo - doc format of list. + (all-font-names + (map + (lambda (font) + (cond + ((string? (ly:font-file-name font)) + (list (list + font + (ly:font-name font) + (ly:font-file-name font)))) + ((ly:pango-font? font) + (map + (lambda (name-psname-pair) + (list #f + (car name-psname-pair) + (cdr name-psname-pair))) + (ly:pango-font-physical-fonts font))) + + (else + (ly:font-sub-fonts font)))) + + fonts)) + (font-names + (uniq-list + (sort (apply append all-font-names) + (lambda (x y) (stringexact - (round (* x scale mm-to-bigpoint)))) - (list (car xext) (car yext) - (cdr xext) (cdr yext)))) - (preamble bookpaper))) - - - (ly:outputter-dump-string outputter - (string-append "0 0 start-system { " - "set-ps-scale-to-lily-scale " - "\n")) - (ly:outputter-dump-stencil outputter dump-me) - (ly:outputter-dump-string outputter "} stop-system\n%%Trailer\n%%EOF\n"))) + (write-preamble paper #t port) -(define-public (convert-to-pdf book name) + (for-each + (lambda (page) + (set! page-number (1+ page-number)) + (dump-page outputter page page-number page-count landscape?)) + page-stencils) + + (display "%%Trailer\n%%EOF\n" port) + (ly:outputter-close outputter) + (postprocess-output book framework-ps-module filename + (ly:output-formats)))) + +(define-public (dump-stencil-as-EPS paper dump-me filename + load-fonts) + (let* - ((defs (ly:paper-book-book-paper book)) - (size (ly:output-def-lookup defs 'papersize))) + ((xext (ly:stencil-extent dump-me X)) + (yext (ly:stencil-extent dump-me Y)) + (padding (ly:get-option 'eps-box-padding)) + (left-overshoot (if (number? padding) + (* -1 padding (ly:output-def-lookup paper 'mm)) + #f)) + (bbox + (map + (lambda (x) + (if (or (nan? x) (inf? x) + ;; FIXME: huh? + (equal? (format #f "~S" x) "+#.#") + (equal? (format #f "~S" x) "-#.#")) + 0.0 x)) + + ;; the left-overshoot is to make sure that + ;; bar numbers stick out of margin uniformly. + ;; + (list + + (if (number? left-overshoot) + (min left-overshoot (car xext)) + (car xext)) + (car yext) (cdr xext) (cdr yext))))) + + (dump-stencil-as-EPS-with-bbox paper dump-me filename load-fonts bbox) + )) + + +(define-public (dump-stencil-as-EPS-with-bbox paper dump-me filename + load-fonts + bbox) + "Create an EPS file from stencil DUMP-ME to FILENAME. BBOX has format + (left-x, lower-y, right x, up-y). If LOAD-FONTS set, include fonts inline." + + (define (to-rounded-bp-box box) + "Convert box to 1/72 inch with rounding to enlarge the box." + (let* ((scale (ly:output-def-lookup paper 'output-scale)) + (strip-non-number (lambda (x) + (if (or (nan? x) (inf? x)) 0.0 x))) + (directed-round (lambda (x rounder) + (inexact->exact + (rounder (/ (* (strip-non-number x) scale) + (ly:bp 1))))))) + (list (directed-round (car box) floor) + (directed-round (cadr box) floor) + (directed-round (max (1+ (car box)) (caddr box)) ceiling) + (directed-round (max (1+ (cadr box)) (cadddr box)) ceiling) + ))) + + (let* ((outputter (ly:make-paper-outputter + ;; FIXME: better wrap open/open-file, + ;; content-mangling is always bad. + ;; MINGW hack: need to have "b"inary for embedding CFFs + (open-file (format "~a.eps" filename) "wb") + 'ps)) + + (port (ly:outputter-port outputter)) + (rounded-bbox (to-rounded-bp-box bbox)) + (port (ly:outputter-port outputter)) + (header (eps-header paper rounded-bbox load-fonts))) + + (display header port) + (write-preamble paper load-fonts port) + (display "gsave set-ps-scale-to-lily-scale \n" port) + (ly:outputter-dump-stencil outputter dump-me) + (display "stroke grestore\n%%Trailer\n%%EOF\n" port) + (ly:outputter-close outputter))) + + + +(define (clip-systems-to-region + basename paper systems region + do-pdf) - (postscript->pdf (if (string? size) size "a4") - name))) + (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))) + (filename (if (< 0 count) + (format "~a-~a" basename count) + basename))) + + (set! count (1+ count)) + (dump-stencil-as-EPS-with-bbox + paper + (paper-system-stencil paper-system) + filename + (ly:get-option 'include-eps-fonts) + bbox) + + (if do-pdf + (postscript->pdf 0 0 (format "~a.eps" filename))) + )) + + extents-system-pairs) + )) + + +(define-public (clip-system-EPSes basename paper-book) + (define do-pdf (member "pdf" (ly:output-formats))) + + (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 "~a-from-~a-to-~a-clip" + basename + (rhythmic-location->file-string (car region)) + (rhythmic-location->file-string (cdr region))) + layout systems region + do-pdf)) + + regions))) + -(define-public (convert-to-png book name) + ;; partition in system lists sharing their layout blocks (let* - ((defs (ly:paper-book-book-paper book)) - (resolution (ly:output-def-lookup defs 'pngresolution))) + ((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) + (clip-score-systems + (if (> count 0) + (format "~a-~a" basename count) + basename) + system-list)) + + score-system-list))) + + +(define-public (output-preview-framework basename book scopes fields) + (let* ((paper (ly:paper-book-paper book)) + (systems (ly:paper-book-systems book)) + (scale (ly:output-def-lookup paper 'output-scale)) + (to-dump-systems '())) + + ;; skip booktitles. + (if (and + (not (ly:get-option 'include-book-title-preview)) + (pair? systems) + (ly:prob-property (car systems) 'is-book-title #f)) + + (set! systems (cdr systems))) + + (for-each + (lambda (sys) + (if (or + (paper-system-title? sys) + (not (pair? to-dump-systems)) + (paper-system-title? (car to-dump-systems))) + (set! to-dump-systems (cons sys to-dump-systems)))) + systems) + + (dump-stencil-as-EPS + paper + (stack-stencils Y DOWN 0.0 + (map paper-system-stencil (reverse to-dump-systems))) + (format "~a.preview" basename) + #t) + + (postprocess-output book framework-ps-module + (format "~a.preview.eps" basename) + (cons "png" (ly:output-formats))))) + +(if #f + (define-public (output-preview-framework basename book scopes fields) + + (let* ((paper (ly:paper-book-paper book)) + (systems (ly:paper-book-systems book)) + (scale (ly:output-def-lookup paper 'output-scale)) + (titles (take-while paper-system-title? systems)) + (non-title (find (lambda (x) + (not (paper-system-title? x))) systems)) + (dump-me + (stack-stencils Y DOWN 0.0 + (map paper-system-stencil + (append titles (list non-title)))))) + (output-scopes scopes fields basename) + (dump-stencil-as-EPS paper dump-me + (format "~a.preview" basename) + #t) + + (postprocess-output book framework-ps-module + (format "~a.preview.eps" basename) + (ly:output-formats))))) + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +(define-public (convert-to-pdf book name) + (let* ((defs (ly:paper-book-paper book)) + (landscape (ly:output-def-lookup defs 'landscape)) + (output-scale (ly:output-def-lookup defs 'output-scale)) + (convert (lambda (x) (* x output-scale (/ (ly:bp 1))))) + + (paper-width (convert (ly:output-def-lookup defs 'paper-width))) + (paper-height (convert (ly:output-def-lookup defs 'paper-height))) + + (w (if landscape paper-height paper-width)) + (h (if landscape paper-width paper-height)) + ) + + (if (equal? (basename name ".ps") "-") + (ly:warning (_ "cannot convert to ~S" "PDF")) + (postscript->pdf w h name)))) - (postscript->png (if (number? resolution) resolution 90) +(define-public (convert-to-png book name) + (let* ((defs (ly:paper-book-paper book)) + (defs-resolution (ly:output-def-lookup defs 'pngresolution)) + (resolution (if (number? defs-resolution) + defs-resolution + (ly:get-option 'resolution))) + (paper-width (ly:output-def-lookup defs 'paper-width)) + (paper-height (ly:output-def-lookup defs 'paper-height)) + (output-scale (ly:output-def-lookup defs 'output-scale))) + + (postscript->png resolution + (* paper-width output-scale (/ (ly:bp 1))) + (* paper-height output-scale (/ (ly:bp 1))) name))) (define-public (convert-to-dvi book name) - (ly:warn "Can not generate DVI via the postscript back-end")) + (ly:warning (_ "cannot generate ~S using the postscript back-end") "DVI")) (define-public (convert-to-tex book name) - (ly:warn "Can not generate TeX via the postscript back-end")) + (ly:warning (_ "cannot generate ~S using the postscript back-end") "TeX")) (define-public (convert-to-ps book name) #t) +(define-public (output-classic-framework basename book scopes fields) + + (ly:error (_ "\nThe PostScript backend does not support the system-by-system +output. For that, use the EPS backend instead, + + lilypond -dbackend=eps FILE + +If have cut & pasted a lilypond fragment from a webpage, be sure +to only remove anything before + + %% **************************************************************** + %% Start cut-&-pastable-section + %% **************************************************************** +")))