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|
;;; This file is part of Cedilla.
;;; Copyright (C) 2002 by Juliusz Chroboczek.
;;; This program 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 2 of the License, or
;;; (at your option) any later version.
;;; This program 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.
(in-package "CEDILLA")
(defparameter *cedilla-procset*
(make-string-ps-resource
:type :procset
:name "Cedilla"
:version *cedilla-version*
:value
"%!
/S /show load def
/MT /moveto load def
/LT /lineto load def
/F /fill load def
/CT /curveto load def
/CP /closepath load def
/C /concat load def
/SLW /setlinewidth load def
/GSV /gsave load def
/GR /grestore load def
/RF /rectfill where {pop /rectfill load}
{{4 2 roll moveto
1 index 0 rlineto 0 exch rlineto neg 0 rlineto fill} bind}
ifelse def
/RS /rectstroke where {pop /rectstroke load}
{{4 2 roll moveto
1 index 0 rlineto 0 exch rlineto neg 0 rlineto closepath stroke} bind}
ifelse def
/RC /rectclip where {pop /rectclip load}
{{4 2 roll moveto
1 index 0 rlineto 0 exch rlineto neg 0 rlineto clip} bind}
ifelse def
/CSV /clipsave where {pop /clipsave load} {/gsave load} ifelse def
/CR /cliprestore where {pop /cliprestore load} {/grestore load} ifelse def
/CS
{2 index 1 index add 2 index 2 index 2 div add moveto
2 index 1 index 2 div add 2 index 2 index 2 div add
2 index 2 div 0 360 arc stroke pop pop pop
} bind def
/RCF {
exch dup length 3 add dict begin
{ 1 index /FID ne { def } { pop pop } ifelse } forall
/Encoding exch def
currentdict end definefont
} bind def
/UE {
256 array 0 1 255 { 1 index exch /.notdef put } for
} bind def
/SQR /RS load def
/CRC {4 2 roll moveto
1 index div 1 exch
gsave scale currentpoint 3 2 roll CS grestore} bind def
/DMND {
4 2 roll moveto 1 index 2 div 0 rmoveto
1 index 2 div 1 index 2 div rlineto
1 index 2 div neg 1 index 2 div rlineto
2 div neg exch 2 div neg exch rlineto closepath stroke
} bind def
/SCRN /SQR load def
/KCP /SQR load def
"))
(defvar *paper-size*)
(defvar *size*)
(defvar *header*)
(defvar *header-baseline*)
(defvar *footer*)
(defvar *footer-baseline*)
(defvar *millisize*)
(defvar *baselineskip*)
(defvar *page-number*)
(defvar *current-x*)
(defvar *current-y*)
(defvar *current-line-width*)
(defvar *typesetter-x*)
(defvar *typesetter-y*)
(defvar *typesetter-line-width*)
(defvar *current-instance*)
(defvar *current-string*)
(defvar *y-top*)
(defvar *y-bot*)
(defvar *x-left*)
(defun typeset-file (in out font-list paper
&key
(size 11)
(wrap nil)
(header nil) (header-baseline (/ 72 2.54))
(footer nil) (footer-baseline (/ 72 2.54))
(title nil) (baselineskip size))
(let* ((*paper-size* paper)
(*size* size) (*millisize* (/ size 1000.0))
(*baselineskip* baselineskip)
(*header* header) (*header-baseline* header-baseline)
(*footer* footer) (*footer-baseline* footer-baseline)
(fonts (or
(mapcan
#'(lambda (font)
(append
(if (font-instances font) (list font) '())
(font-transformed-fonts font)))
font-list)
(error "Empty document")))
(font-resources (compute-font-resources fonts))
(*y-top* (- (max 0 (scaled-quantity (font-y1 (car fonts))))
*baselineskip*))
(*x-left* (- (min 0 (scaled-quantity (font-x0 (car fonts))))))
(*y-bot* (- (min 0 (scaled-quantity (font-y0 (car fonts)))))))
(output-header out title (cons *cedilla-procset* font-resources))
(output-prolog out)
(output-setup out fonts font-resources)
(let ((*current-x* nil) (*current-y* nil) (*current-line-width* nil)
(*typesetter-x* nil) (*typesetter-y* nil)
(*typesetter-line-width* nil)
(*current-instance* nil) (*page-number* 1)
(*current-string*
(make-array 200 :fill-pointer 0 :element-type 'character)))
(open-page out)
(labels ((tg (glyph)
(when wrap
(let ((w (scaled-glyph-width glyph)))
(when (> (+ *current-x* w)
(- (paper-size-x1 paper)
(paper-size-right-margin paper)))
(new-line out))))
(typeset-glyph glyph out))
(tccs (ccs)
(let ((glyph (recall-glyph ccs)))
(etypecase glyph
(null (let ((glyph (recall-glyph #\?)))
(when (glyph-p glyph)
(tg glyph))))
(glyph (tg glyph))
(list (dolist (g glyph) (tg g)))))))
(loop
(let ((ccs (next-ccs in)))
(when (eql ccs in)
(return nil))
(cond
((eql ccs #\Newline)
(new-line out))
((eql ccs #\Page)
(let ((n-ccs (next-ccs in)))
(when (eql n-ccs #\Newline)
(setf n-ccs (next-ccs in)))
(when (eql n-ccs in)
(return nil))
(new-page out)
(tccs n-ccs)))
(t (tccs ccs))))))
(close-page out)
(output-trailer out))))
(defun compute-font-resources (fonts)
(let ((resources '()))
(dolist (f fonts)
(dolist (r (font-resources f))
(unless (member r resources :test #'resource-equivalent-p)
(push r resources))))
(dolist (f fonts)
(when (typep f 'ps-font)
(let ((r (make-required-ps-resource
:type :font :name (font-name f))))
(unless (member r resources :test #'resource-equivalent-p)
(push r resources)))))
resources))
(defun scaled-quantity (q)
(* q *millisize*))
(defun scaled-glyph-width (glyph)
(* (glyph-width glyph) *millisize*))
(defun synchronise-position (out)
(unless (and (eql *current-x* *typesetter-x*)
(eql *current-y* *typesetter-y*))
(finish-string out)
(format out "~A ~A MT~%" *current-x* *current-y*)
(setf *typesetter-x* *current-x*
*typesetter-y* *current-y*)))
(defun synchronise-line-width (out)
(unless (eql *current-line-width* *typesetter-line-width*)
(finish-string out)
(format out "~A SLW~%" *current-line-width*)
(setf *typesetter-line-width* *current-line-width*)))
(defun open-page (out)
(format out "%%Page: ~A ~A~%" *page-number* *page-number*)
(format out "%%BeginPageSetup~%")
(format out "save~%")
(format out "%%EndPageSetup~%")
(typeset-header
*header* (- (paper-size-y1 *paper-size*) *header-baseline*) out)
(setf *current-x* (+ (paper-size-x0 *paper-size*)
(paper-size-left-margin *paper-size*))
*current-y* (- (paper-size-y1 *paper-size*)
(+ (paper-size-top-margin *paper-size*)
*baselineskip* *y-top*))
*typesetter-x* nil *typesetter-y* nil))
(defun close-page (out)
(finish-string out)
(typeset-header
*footer* (+ (paper-size-y0 *paper-size*) *footer-baseline*) out)
(format out "restore~%")
(setf *current-instance* nil
*current-x* nil *current-y* nil *typesetter-x* nil *typesetter-y* nil
*current-line-width* nil)
(format out "showpage~%")
(incf *page-number*))
(defun new-line (out)
(setf *current-x* (+ (paper-size-x0 *paper-size*)
(paper-size-left-margin *paper-size*)))
(decf *current-y* *baselineskip*)
(when (< *current-y* (+ (paper-size-y0 *paper-size*)
(paper-size-left-margin *paper-size*) *y-bot*))
(new-page out)))
(defun new-page (out)
(close-page out)
(open-page out))
(defun output-character (char out)
;; DSC specifies a maximum line length of 255
;; we may output up to three characters for every character in a string
;; we limit ourselves to 75 characters per string
(synchronise-position out)
(when (>= (fill-pointer *current-string*) 75)
(finish-string out))
(vector-push char *current-string*))
(defun finish-string (out)
(when (>= (fill-pointer *current-string*) 1)
(output-string *current-string* out)
(format out " S~%")
(setf (fill-pointer *current-string*) 0)))
(defun output-string (string out)
(format out "(")
(loop for i from 0 upto (- (length string) 1)
for c = (char-code (aref string i))
when (>= c 256) do (error "Cannot output character \\~3,'0O" c)
do (cond
((or (< c 32) (>= c 127))
(format out "\\~3,'0O" c))
((or (= c 40) (= c 41) (= c 92))
(format out "\\~C" (aref string i)))
(t
(format out "~C" (aref string i)))))
(format out ")")
(setf (fill-pointer *current-string*) 0))
(defun output-header (out title resources)
(format out "%!PS-Adobe-3.0~%")
(format out "%%Creator: (Cedilla ~A)~%" *cedilla-version*)
(when title
(format out "%%Title: ~A" title))
(format out "%%BoundingBox: ~A ~A ~A ~A~%"
(floor (paper-size-x0 *paper-size*))
(floor (paper-size-y0 *paper-size*))
(ceiling (paper-size-x1 *paper-size*))
(ceiling (paper-size-y1 *paper-size*)))
(format out "%%DocumentData: Clean7Bit~%")
(format out "%%Pages: (atend)~%")
(format out "%%PageOrder: Ascend~%")
(let ((all-resources '()) (needed-resources '()) (supplied-resources '()))
(dolist (r resources)
(unless (required-ps-resource-p r)
(unless (member r all-resources :test #'resource-equivalent-p)
(push r all-resources)
(push r supplied-resources))))
(dolist (r resources)
(unless (member r all-resources :test #'resource-equivalent-p)
(push r all-resources)
(push r needed-resources)))
(output-font-list "" all-resources out)
(output-font-list "Needed" needed-resources out)
(output-font-list "Supplied" supplied-resources out)
(output-resource-list "" all-resources out)
(output-resource-list "Needed" needed-resources out)
(output-resource-list "Supplied" supplied-resources out))
(format out "%%EndComments~%"))
(defun output-font-list (kind resource-list out)
(let ((list (mapcan #'(lambda (r)
(if (eql (ps-resource-type r) :font) (list r) '()))
resource-list)))
(when list
(format out "%%Document~AFonts: " kind)
(let ((length 0))
(format out "~A" (ps-resource-name (car list)))
(incf length (length (ps-resource-name (car list))))
(dolist (r (cdr list))
(let* ((f (ps-resource-name r)) (l (+ 1 (length f))))
(when (> (+ length l) 70)
(format out "~%%%+")
(setf length 0))
(format out " ~A" f)
(incf length l)))
(format out "~%")))))
(defun output-resource-list (kind resource-list out)
(let ((list (mapcan #'(lambda (r)
(if (eql (ps-resource-type r) :font) '() (list r)))
resource-list)))
(when list
(format out "%%Document~AResources: " kind)
(format out "~(~A~) ~A~%"
(ps-resource-type (car list)) (ps-resource-name (car list)))
(dolist (r (cdr list))
(format out "%%+ ~A ~A~%" (ps-resource-type r) (ps-resource-name r))))))
(defun output-prolog (out)
(format out "%%BeginProlog~%")
(download-resource *cedilla-procset* out)
(format out "%%EndProlog~%"))
(defun output-setup (out fonts resources)
(when (or fonts resources)
(format out "%%BeginSetup~%")
(dolist (r resources)
(download-resource r out))
(let ((font-counter 0) (instance-counter 0))
(dolist (f fonts)
(setup-font out f *size* (format nil "F~A" font-counter))
(dolist (i (font-instances f))
(setup-font-instance out i
(format nil "I~A" instance-counter))
(incf instance-counter))
(incf font-counter)))
(format out "%%EndSetup~%")))
(defun output-trailer (out)
(format out "%%Trailer~%")
(format out "%%Pages: ~A~%" (- *page-number* 1))
(format out "%%EOF~%"))
(defmethod typeset-glyph ((glyph font-glyph) out)
(typeset-font-glyph glyph (glyph-instance glyph) (glyph-index glyph) out))
(defmethod typeset-glyph ((glyph composite-glyph) out)
(dolist (c (composite-glyph-components glyph))
(let ((*current-x* (+ *current-x* (scaled-quantity (component-dx c))))
(*current-y* (+ *current-y* (scaled-quantity (component-dy c)))))
(typeset-glyph (component-glyph c) out)))
(incf *current-x* (scaled-glyph-width glyph)))
(defun string-width (s)
(let ((w 0))
(map nil
#'(lambda (c)
(let ((g (recall-glyph (normalise-ccs c))))
(etypecase g
(null nil)
(glyph (incf w (scaled-glyph-width g)))
(list (mapc #'(lambda (g*) (incf w (scaled-glyph-width g*)))
g)))))
s)
w))
(defun typeset-string (s out)
(map nil
#'(lambda (c)
(let ((g (recall-glyph (normalise-ccs c))))
(etypecase g
(null nil)
(glyph (typeset-glyph g out))
(list (dolist (g* g) (typeset-glyph g* out))))))
s))
(defun typeset-header (header y out)
(flet ((th (s x)
(when s
(let ((*current-x* x)
(*current-y* y))
(typeset-string s out)
(finish-string out)))))
(let ((hl (and (car header) (header-string (car header))))
(hc (and (cadr header) (header-string (cadr header))))
(hr (and (caddr header) (header-string (caddr header)))))
(finish-string out)
(th hl (+ (paper-size-x0 *paper-size*)
(paper-size-left-margin *paper-size*)))
(th hc (/ (+ (paper-size-x0 *paper-size*)
(paper-size-x1 *paper-size*)
(- (string-width hc)))
2.0))
(th hr (- (paper-size-x1 *paper-size*)
(+ (paper-size-right-margin *paper-size*)
(string-width hr)))))))
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