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2cb842ae KH |
1 | ;;; ps-mule.el --- Provide multi-byte character facility to ps-print. |
2 | ||
9909b395 | 3 | ;; Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc. |
2cb842ae KH |
4 | |
5 | ;; Author: Vinicius Jose Latorre <vinicius@cpqd.com.br> | |
6 | ;; Author: Kenichi Handa <handa@etl.go.jp> (multi-byte characters) | |
7 | ;; Maintainer: Kenichi Handa <handa@etl.go.jp> (multi-byte characters) | |
8 | ;; Maintainer: Vinicius Jose Latorre <vinicius@cpqd.com.br> | |
c276ee05 | 9 | ;; Keywords: wp, print, PostScript, multibyte, mule |
9909b395 | 10 | ;; Time-stamp: <2000/04/17 11:28:09 vinicius> |
2cb842ae KH |
11 | |
12 | ;; This file is part of GNU Emacs. | |
13 | ||
14 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
15 | ;; it under the terms of the GNU General Public License as published by | |
16 | ;; the Free Software Foundation; either version 2, or (at your option) | |
17 | ;; any later version. | |
18 | ||
19 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
20 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | ;; GNU General Public License for more details. | |
23 | ||
24 | ;; You should have received a copy of the GNU General Public License | |
25 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
26 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
27 | ;; Boston, MA 02111-1307, USA. | |
28 | ||
29 | ;;; Commentary: | |
30 | ||
c276ee05 | 31 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2cb842ae KH |
32 | ;; |
33 | ;; About ps-mule | |
34 | ;; ------------- | |
35 | ;; | |
36 | ;; This package is used for ps-print to print multi-byte buffer. | |
37 | ;; | |
38 | ;; See also ps-print.el. | |
39 | ;; | |
40 | ;; | |
41 | ;; Printing Multi-byte Buffer | |
42 | ;; -------------------------- | |
43 | ;; | |
44 | ;; The variable `ps-multibyte-buffer' specifies the ps-print multi-byte buffer | |
45 | ;; handling. | |
46 | ;; | |
47 | ;; Valid values for `ps-multibyte-buffer' are: | |
48 | ;; | |
c276ee05 KH |
49 | ;; nil This is the value to use the default settings which |
50 | ;; is by default for printing buffer with only ASCII | |
51 | ;; and Latin characters. The default setting can be | |
52 | ;; changed by setting the variable | |
53 | ;; `ps-mule-font-info-database-default' differently. | |
54 | ;; The initial value of this variable is | |
55 | ;; `ps-mule-font-info-database-latin' (see | |
56 | ;; documentation). | |
2cb842ae KH |
57 | ;; |
58 | ;; `non-latin-printer' This is the value to use when you have a japanese | |
59 | ;; or korean PostScript printer and want to print | |
60 | ;; buffer with ASCII, Latin-1, Japanese (JISX0208 and | |
61 | ;; JISX0201-Kana) and Korean characters. At present, | |
62 | ;; it was not tested the Korean characters printing. | |
63 | ;; If you have a korean PostScript printer, please, | |
64 | ;; test it. | |
65 | ;; | |
66 | ;; `bdf-font' This is the value to use when you want to print | |
67 | ;; buffer with BDF fonts. BDF fonts include both latin | |
68 | ;; and non-latin fonts. BDF (Bitmap Distribution | |
69 | ;; Format) is a format used for distributing X's font | |
70 | ;; source file. BDF fonts are included in | |
71 | ;; `intlfonts-1.1' which is a collection of X11 fonts | |
72 | ;; for all characters supported by Emacs. In order to | |
73 | ;; use this value, be sure to have installed | |
74 | ;; `intlfonts-1.1' and set the variable | |
75 | ;; `bdf-directory-list' appropriately (see ps-bdf.el | |
76 | ;; for documentation of this variable). | |
77 | ;; | |
78 | ;; `bdf-font-except-latin' This is like `bdf-font' except that it is used | |
79 | ;; PostScript default fonts to print ASCII and Latin-1 | |
80 | ;; characters. This is convenient when you want or | |
81 | ;; need to use both latin and non-latin characters on | |
82 | ;; the same buffer. See `ps-font-family', | |
83 | ;; `ps-header-font-family' and `ps-font-info-database'. | |
84 | ;; | |
85 | ;; Any other value is treated as nil. | |
86 | ;; | |
87 | ;; The default is nil. | |
88 | ;; | |
c276ee05 | 89 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2cb842ae KH |
90 | |
91 | ;;; Code: | |
92 | ||
93 | (eval-and-compile (require 'ps-print)) | |
94 | ||
c276ee05 | 95 | |
3ea591bd KH |
96 | ;;;###autoload |
97 | (defcustom ps-multibyte-buffer nil | |
98 | "*Specifies the multi-byte buffer handling. | |
99 | ||
100 | Valid values are: | |
101 | ||
102 | nil This is the value to use the default settings which | |
103 | is by default for printing buffer with only ASCII | |
104 | and Latin characters. The default setting can be | |
105 | changed by setting the variable | |
106 | `ps-mule-font-info-database-default' differently. | |
107 | The initial value of this variable is | |
108 | `ps-mule-font-info-database-latin' (see | |
109 | documentation). | |
110 | ||
111 | `non-latin-printer' This is the value to use when you have a Japanese | |
112 | or Korean PostScript printer and want to print | |
113 | buffer with ASCII, Latin-1, Japanese (JISX0208 and | |
114 | JISX0201-Kana) and Korean characters. At present, | |
115 | it was not tested the Korean characters printing. | |
116 | If you have a korean PostScript printer, please, | |
117 | test it. | |
118 | ||
119 | `bdf-font' This is the value to use when you want to print | |
120 | buffer with BDF fonts. BDF fonts include both latin | |
121 | and non-latin fonts. BDF (Bitmap Distribution | |
122 | Format) is a format used for distributing X's font | |
123 | source file. BDF fonts are included in | |
124 | `intlfonts-1.1' which is a collection of X11 fonts | |
125 | for all characters supported by Emacs. In order to | |
126 | use this value, be sure to have installed | |
127 | `intlfonts-1.1' and set the variable | |
128 | `bdf-directory-list' appropriately (see ps-bdf.el for | |
129 | documentation of this variable). | |
130 | ||
131 | `bdf-font-except-latin' This is like `bdf-font' except that it is used | |
132 | PostScript default fonts to print ASCII and Latin-1 | |
133 | characters. This is convenient when you want or | |
134 | need to use both latin and non-latin characters on | |
135 | the same buffer. See `ps-font-family', | |
136 | `ps-header-font-family' and `ps-font-info-database'. | |
137 | ||
138 | Any other value is treated as nil." | |
9909b395 GM |
139 | :type '(choice (const non-latin-printer) (const bdf-font) |
140 | (const bdf-font-except-latin) (const :tag "nil" nil)) | |
3ea591bd | 141 | :group 'ps-print-font) |
c276ee05 | 142 | |
2cb842ae KH |
143 | |
144 | ;; For Emacs 20.2 and the earlier version. | |
145 | (eval-and-compile | |
c276ee05 KH |
146 | (if (and (boundp 'mule-version) ; only if mule package is loaded |
147 | (not (string< mule-version "4.0"))) | |
2cb842ae KH |
148 | (progn |
149 | (defalias 'ps-mule-next-point '1+) | |
150 | (defalias 'ps-mule-chars-in-string 'length) | |
151 | (defalias 'ps-mule-string-char 'aref) | |
152 | (defsubst ps-mule-next-index (str i) (1+ i))) | |
153 | (defun ps-mule-next-point (arg) | |
154 | (save-excursion (goto-char arg) (forward-char 1) (point))) | |
155 | (defun ps-mule-chars-in-string (string) | |
156 | (/ (length string) | |
157 | (charset-bytes (char-charset (string-to-char string))))) | |
158 | (defun ps-mule-string-char (string idx) | |
159 | (string-to-char (substring string idx))) | |
160 | (defun ps-mule-next-index (string i) | |
d0da93b3 KH |
161 | (+ i (charset-bytes (char-charset (string-to-char string))))) |
162 | )) | |
163 | ||
164 | ;; For Emacs 20.4 and the earlier version. | |
165 | (eval-and-compile | |
166 | (when (and (boundp 'mule-version) | |
167 | (string< mule-version "5.0")) | |
168 | (defun encode-composition-rule (rule) | |
169 | (if (= (car rule) 4) (setcar rule 10)) | |
170 | (if (= (cdr rule) 4) (setcdr rule 10)) | |
171 | (+ (* (car rule) 12) (cdr rule))) | |
172 | (defun find-composition (pos &rest ignore) | |
173 | (let ((ch (char-after pos))) | |
174 | (if (eq (char-charset ch) 'composition) | |
175 | (let ((components (decompose-composite-char ch 'vector t))) | |
176 | (list pos (ps-mule-next-point pos) components | |
177 | (integerp (aref components 1)) nil | |
178 | (char-width ch)))))))) | |
2cb842ae KH |
179 | |
180 | (defvar ps-mule-font-info-database | |
181 | nil | |
182 | "Alist of charsets with the corresponding font information. | |
183 | Each element has the form: | |
184 | ||
185 | (CHARSET (FONT-TYPE FONT-SRC FONT-NAME ENCODING BYTES) ...) | |
186 | ||
187 | Where | |
188 | ||
189 | CHARSET is a charset (symbol) for this font family, | |
190 | ||
191 | FONT-TYPE is a font type: normal, bold, italic, or bold-italic. | |
192 | ||
193 | FONT-SRC is a font source: builtin, ps-bdf, vflib, or nil. | |
194 | ||
195 | If FONT-SRC is builtin, FONT-NAME is a buitin PostScript font name. | |
196 | ||
5d5bea97 EZ |
197 | If FONT-SRC is bdf, FONT-NAME is a BDF font file name, or a list of |
198 | alternative font names. To use this font, the external library `ps-bdf' | |
199 | is required. | |
2cb842ae KH |
200 | |
201 | If FONT-SRC is vflib, FONT-NAME is the name of a font that VFlib knows. | |
202 | To use this font, the external library `vflib' is required. | |
203 | ||
204 | If FONT-SRC is nil, a proper ASCII font in the variable | |
205 | `ps-font-info-database' is used. This is useful for Latin-1 characters. | |
206 | ||
207 | ENCODING is a coding system to encode a string of characters of CHARSET into a | |
208 | proper string matching an encoding of the specified font. ENCODING may be a | |
209 | function that does this encoding. In this case, the function is called with | |
210 | one argument, the string to encode, and it should return an encoded string. | |
211 | ||
212 | BYTES specifies how many bytes each character has in the encoded byte | |
213 | sequence; it should be 1 or 2. | |
214 | ||
215 | All multi-byte characters are printed by fonts specified in this database | |
216 | regardless of a font family of ASCII characters. The exception is Latin-1 | |
217 | characters which are printed by the same font as ASCII characters, thus obey | |
218 | font family. | |
219 | ||
220 | See also the variable `ps-font-info-database'.") | |
221 | ||
222 | (defconst ps-mule-font-info-database-latin | |
223 | '((latin-iso8859-1 | |
224 | (normal nil nil iso-latin-1))) | |
225 | "Sample setting of `ps-mule-font-info-database' to use latin fonts.") | |
226 | ||
c276ee05 | 227 | (defcustom ps-mule-font-info-database-default |
2a772306 | 228 | ps-mule-font-info-database-latin |
c276ee05 KH |
229 | "*The default setting to use if `ps-multibyte-buffer' is nil." |
230 | :type '(repeat :tag "Multi-Byte Buffer Database Font Default" | |
231 | (list (symbol :tag "Charset") | |
232 | (repeat :inline t | |
233 | (list (choice :tag "Font Type" | |
234 | (const normal) (const bold) | |
235 | (const italic) (const bold-italic)) | |
236 | (choice :tag "Font Source" | |
237 | (const builtin) (const ps-bdf) | |
238 | (const vflib) | |
239 | (other :tag "nil" nil)) | |
240 | (list (string :tag "Font Name")) | |
241 | (function :tag "Encoding") | |
242 | (integer :tag "Bytes"))))) | |
243 | :group 'ps-print-font) | |
00cbf820 | 244 | |
2cb842ae KH |
245 | (defconst ps-mule-font-info-database-ps |
246 | '((katakana-jisx0201 | |
247 | (normal builtin "Ryumin-Light.Katakana" ps-mule-encode-7bit 1) | |
248 | (bold builtin "GothicBBB-Medium.Katakana" ps-mule-encode-7bit 1) | |
249 | (bold-italic builtin "GothicBBB-Medium.Katakana" ps-mule-encode-7bit 1)) | |
250 | (latin-jisx0201 | |
f58395f6 | 251 | (normal builtin "Ryumin-Light.Hankaku" ps-mule-encode-7bit 1) |
2cb842ae KH |
252 | (bold builtin "GothicBBB-Medium.Hankaku" ps-mule-encode-7bit 1)) |
253 | (japanese-jisx0208 | |
254 | (normal builtin "Ryumin-Light-H" ps-mule-encode-7bit 2) | |
255 | (bold builtin "GothicBBB-Medium-H" ps-mule-encode-7bit 2)) | |
256 | (korean-ksc5601 | |
f58395f6 KH |
257 | (normal builtin "Munhwa-Regular-KSC-EUC-H" ps-mule-encode-7bit 2) |
258 | (bold builtin "Munhwa-Bold-KSC-EUC-H" ps-mule-encode-7bit 2)) | |
2cb842ae KH |
259 | ) |
260 | "Sample setting of the `ps-mule-font-info-database' to use builtin PS font. | |
261 | ||
262 | Currently, data for Japanese and Korean PostScript printers are listed.") | |
263 | ||
264 | (defconst ps-mule-font-info-database-bdf | |
265 | '((ascii | |
5d5bea97 | 266 | (normal bdf ("lt1-24-etl.bdf" "etl24-latin1.bdf") nil 1) |
fb901f73 KH |
267 | (bold bdf ("lt1-16b-etl.bdf" "etl16b-latin1.bdf") nil 1) |
268 | (italic bdf ("lt1-16i-etl.bdf" "etl16i-latin1.bdf") nil 1) | |
269 | (bold-italic bdf ("lt1-16bi-etl.bdf" "etl16bi-latin1.bdf") nil 1)) | |
2cb842ae | 270 | (latin-iso8859-1 |
fb901f73 | 271 | (normal bdf ("lt1-24-etl.bdf" "etl24-latin1.bdf") iso-latin-1 1) |
5d5bea97 EZ |
272 | (bold bdf ("lt1-16b-etl.bdf" "etl16b-latin1.bdf") iso-latin-1 1) |
273 | (italic bdf ("lt1-16i-etl.bdf" "etl16i-latin1.bdf") iso-latin-1 1) | |
274 | (bold-italic bdf ("lt1-16bi-etl.bdf" "etl16bi-latin1.bdf") iso-latin-1 1)) | |
2cb842ae | 275 | (latin-iso8859-2 |
5d5bea97 | 276 | (normal bdf ("lt2-24-etl.bdf" "etl24-latin2.bdf") iso-latin-2 1)) |
2cb842ae | 277 | (latin-iso8859-3 |
5d5bea97 | 278 | (normal bdf ("lt3-24-etl.bdf" "etl24-latin3.bdf") iso-latin-3 1)) |
2cb842ae | 279 | (latin-iso8859-4 |
5d5bea97 | 280 | (normal bdf ("lt4-24-etl.bdf" "etl24-latin4.bdf") iso-latin-4 1)) |
2cb842ae | 281 | (thai-tis620 |
5d5bea97 | 282 | (normal bdf ("thai24.bdf" "thai-24.bdf") thai-tis620 1)) |
2cb842ae | 283 | (greek-iso8859-7 |
5d5bea97 | 284 | (normal bdf ("grk24-etl.bdf" "etl24-greek.bdf") greek-iso-8bit 1)) |
2cb842ae KH |
285 | ;; (arabic-iso8859-6 nil) ; not yet available |
286 | (hebrew-iso8859-8 | |
5d5bea97 | 287 | (normal bdf ("heb24-etl.bdf" "etl24-hebrew.bdf") hebrew-iso-8bit 1)) |
2cb842ae KH |
288 | (katakana-jisx0201 |
289 | (normal bdf "12x24rk.bdf" ps-mule-encode-8bit 1)) | |
290 | (latin-jisx0201 | |
291 | (normal bdf "12x24rk.bdf" ps-mule-encode-7bit 1)) | |
292 | (cyrillic-iso8859-5 | |
5d5bea97 | 293 | (normal bdf ("cyr24-etl.bdf" "etl24-cyrillic.bdf") cyrillic-iso-8bit 1)) |
2cb842ae | 294 | (latin-iso8859-9 |
5d5bea97 | 295 | (normal bdf ("lt5-24-etl.bdf" "etl24-latin5.bdf") iso-latin-5 1)) |
2cb842ae KH |
296 | (japanese-jisx0208-1978 |
297 | (normal bdf "jiskan24.bdf" ps-mule-encode-7bit 2)) | |
298 | (chinese-gb2312 | |
299 | (normal bdf "gb24st.bdf" ps-mule-encode-7bit 2)) | |
300 | (japanese-jisx0208 | |
301 | (normal bdf "jiskan24.bdf" ps-mule-encode-7bit 2)) | |
302 | (korean-ksc5601 | |
303 | (normal bdf "hanglm24.bdf" ps-mule-encode-7bit 2)) | |
304 | (japanese-jisx0212 | |
5d5bea97 | 305 | (normal bdf ("jksp40.bdf" "jisksp40.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 306 | (chinese-cns11643-1 |
5d5bea97 | 307 | (normal bdf ("cns1-40.bdf" "cns-1-40.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 308 | (chinese-cns11643-2 |
5d5bea97 | 309 | (normal bdf ("cns2-40.bdf" "cns-2-40.bdf") ps-mule-encode-7bit 2)) |
2cb842ae KH |
310 | (chinese-big5-1 |
311 | (normal bdf "taipei24.bdf" chinese-big5 2)) | |
312 | (chinese-big5-2 | |
313 | (normal bdf "taipei24.bdf" chinese-big5 2)) | |
314 | (chinese-sisheng | |
2dedd03c | 315 | (normal bdf ("sish24-etl.bdf" "etl24-sisheng.bdf") ps-mule-encode-7bit 1)) |
2cb842ae | 316 | (ipa |
5d5bea97 | 317 | (normal bdf ("ipa24-etl.bdf" "etl24-ipa.bdf") ps-mule-encode-8bit 1)) |
2cb842ae | 318 | (vietnamese-viscii-lower |
5d5bea97 | 319 | (normal bdf ("visc24-etl.bdf" "etl24-viscii.bdf") vietnamese-viscii 1)) |
2cb842ae | 320 | (vietnamese-viscii-upper |
5d5bea97 | 321 | (normal bdf ("visc24-etl.bdf" "etl24-viscii.bdf") vietnamese-viscii 1)) |
2cb842ae | 322 | (arabic-digit |
5d5bea97 | 323 | (normal bdf ("arab24-0-etl.bdf" "etl24-arabic0.bdf") ps-mule-encode-7bit 1)) |
2cb842ae | 324 | (arabic-1-column |
5d5bea97 | 325 | (normal bdf ("arab24-1-etl.bdf" "etl24-arabic1.bdf") ps-mule-encode-7bit 1)) |
2cb842ae KH |
326 | ;; (ascii-right-to-left nil) ; not yet available |
327 | (lao | |
5d5bea97 | 328 | (normal bdf ("lao24-mule.bdf" "mule-lao-24.bdf") lao 1)) |
2cb842ae | 329 | (arabic-2-column |
5d5bea97 | 330 | (normal bdf ("arab24-2-etl.bdf" "etl24-arabic2.bdf") ps-mule-encode-7bit 1)) |
2cb842ae | 331 | (indian-is13194 |
5d5bea97 | 332 | (normal bdf ("isci24-etl.bdf" "mule-iscii-24.bdf") ps-mule-encode-7bit 1)) |
2cb842ae | 333 | (indian-1-column |
5d5bea97 | 334 | (normal bdf ("ind1c24-mule.bdf" "mule-indian-1col-24.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 335 | (tibetan-1-column |
5d5bea97 | 336 | (normal bdf ("tib1c24-mule.bdf" "mule-tibmdx-1col-24.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 337 | (ethiopic |
5d5bea97 | 338 | (normal bdf ("ethio24f-uni.bdf" "ethiomx24f-uni.bdf") ps-mule-encode-ethiopic 2)) |
2cb842ae | 339 | (chinese-cns11643-3 |
5d5bea97 | 340 | (normal bdf ("cns3-40.bdf" "cns-3-40.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 341 | (chinese-cns11643-4 |
5d5bea97 | 342 | (normal bdf ("cns4-40.bdf" "cns-4-40.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 343 | (chinese-cns11643-5 |
5d5bea97 | 344 | (normal bdf ("cns5-40.bdf" "cns-5-40.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 345 | (chinese-cns11643-6 |
5d5bea97 | 346 | (normal bdf ("cns6-40.bdf" "cns-6-40.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 347 | (chinese-cns11643-7 |
5d5bea97 | 348 | (normal bdf ("cns7-40.bdf" "cns-7-40.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 349 | (indian-2-column |
5d5bea97 | 350 | (normal bdf ("ind24-mule.bdf" "mule-indian-24.bdf") ps-mule-encode-7bit 2)) |
2cb842ae | 351 | (tibetan |
8cf74617 KH |
352 | (normal bdf ("tib24p-mule.bdf" "tib24-mule.bdf" "mule-tibmdx-24.bdf") |
353 | ps-mule-encode-7bit 2))) | |
2cb842ae KH |
354 | "Sample setting of the `ps-mule-font-info-database' to use BDF fonts. |
355 | BDF (Bitmap Distribution Format) is a format used for distributing X's font | |
356 | source file. | |
357 | ||
358 | Current default value list for BDF fonts is included in `intlfonts-1.1' which is | |
359 | a collection of X11 fonts for all characters supported by Emacs. | |
360 | ||
361 | Using this list as default value to `ps-mule-font-info-database', all characters | |
362 | including ASCII and Latin-1 are printed by BDF fonts. | |
363 | ||
364 | See also `ps-mule-font-info-database-ps-bdf'.") | |
365 | ||
366 | (defconst ps-mule-font-info-database-ps-bdf | |
367 | (cons (car ps-mule-font-info-database-latin) | |
368 | (cdr (cdr ps-mule-font-info-database-bdf))) | |
369 | "Sample setting of the `ps-mule-font-info-database' to use BDF fonts. | |
370 | ||
371 | Current default value list for BDF fonts is included in `intlfonts-1.1' which is | |
372 | a collection of X11 fonts for all characters supported by Emacs. | |
373 | ||
374 | Using this list as default value to `ps-mule-font-info-database', all characters | |
375 | except ASCII and Latin-1 characters are printed by BDF fonts. ASCII and Latin-1 | |
376 | characters are printed by PostScript font specified by `ps-font-family' and | |
377 | `ps-header-font-family'. | |
378 | ||
379 | See also `ps-mule-font-info-database-bdf'.") | |
380 | ||
381 | ;; Two typical encoding functions for PostScript fonts. | |
382 | ||
383 | (defun ps-mule-encode-7bit (string) | |
384 | (ps-mule-encode-bit string 0)) | |
385 | ||
386 | (defun ps-mule-encode-8bit (string) | |
387 | (ps-mule-encode-bit string 128)) | |
388 | ||
389 | (defun ps-mule-encode-bit (string delta) | |
390 | (let* ((dim (charset-dimension (char-charset (string-to-char string)))) | |
391 | (len (* (ps-mule-chars-in-string string) dim)) | |
392 | (str (make-string len 0)) | |
393 | (i 0) | |
394 | (j 0)) | |
395 | (if (= dim 1) | |
396 | (while (< j len) | |
397 | (aset str j | |
398 | (+ (nth 1 (split-char (ps-mule-string-char string i))) delta)) | |
399 | (setq i (ps-mule-next-index string i) | |
400 | j (1+ j))) | |
401 | (while (< j len) | |
402 | (let ((split (split-char (ps-mule-string-char string i)))) | |
403 | (aset str j (+ (nth 1 split) delta)) | |
404 | (aset str (1+ j) (+ (nth 2 split) delta)) | |
405 | (setq i (ps-mule-next-index string i) | |
406 | j (+ j 2))))) | |
407 | str)) | |
408 | ||
409 | ;; Special encoding function for Ethiopic. | |
c276ee05 KH |
410 | (if (boundp 'mule-version) ; only if mule package is loaded |
411 | (define-ccl-program ccl-encode-ethio-unicode | |
412 | `(1 | |
413 | ((read r2) | |
414 | (loop | |
415 | (if (r2 == ,leading-code-private-22) | |
416 | ((read r0) | |
417 | (if (r0 == ,(charset-id 'ethiopic)) | |
418 | ((read r1 r2) | |
419 | (r1 &= 127) (r2 &= 127) | |
420 | (call ccl-encode-ethio-font) | |
421 | (write r1) | |
422 | (write-read-repeat r2)) | |
423 | ((write r2 r0) | |
424 | (repeat)))) | |
425 | (write-read-repeat r2)))))) | |
426 | ;; to avoid compilation gripes | |
427 | (defvar ccl-encode-ethio-unicode nil)) | |
428 | ||
429 | (if (boundp 'mule-version) | |
430 | ;; bound mule-version | |
431 | (defun ps-mule-encode-ethiopic (string) | |
432 | (ccl-execute-on-string (symbol-value 'ccl-encode-ethio-unicode) | |
433 | (make-vector 9 nil) | |
434 | string)) | |
435 | ;; unbound mule-version | |
436 | (defun ps-mule-encode-ethiopic (string) | |
437 | string)) | |
2cb842ae KH |
438 | |
439 | ;; A charset which we are now processing. | |
440 | (defvar ps-mule-current-charset nil) | |
441 | ||
442 | (defun ps-mule-get-font-spec (charset font-type) | |
443 | "Return FONT-SPEC for printing characters CHARSET with FONT-TYPE. | |
444 | FONT-SPEC is a list that has the form: | |
445 | ||
446 | (FONT-SRC FONT-NAME ENCODING BYTES) | |
447 | ||
448 | FONT-SPEC is extracted from `ps-mule-font-info-database'. | |
449 | ||
450 | See the documentation of `ps-mule-font-info-database' for the meaning of each | |
451 | element of the list." | |
452 | (let ((slot (cdr (assq charset ps-mule-font-info-database)))) | |
453 | (and slot | |
454 | (cdr (or (assq font-type slot) | |
455 | (and (eq font-type 'bold-italic) | |
456 | (or (assq 'bold slot) (assq 'italic slot))) | |
457 | (assq 'normal slot)))))) | |
458 | ||
459 | ;; Functions to access each element of FONT-SPEC. | |
460 | (defsubst ps-mule-font-spec-src (font-spec) (car font-spec)) | |
461 | (defsubst ps-mule-font-spec-name (font-spec) (nth 1 font-spec)) | |
462 | (defsubst ps-mule-font-spec-encoding (font-spec) (nth 2 font-spec)) | |
463 | (defsubst ps-mule-font-spec-bytes (font-spec) (nth 3 font-spec)) | |
464 | ||
465 | (defsubst ps-mule-printable-p (charset) | |
466 | "Non-nil if characters in CHARSET is printable." | |
467 | (ps-mule-get-font-spec charset 'normal)) | |
468 | ||
469 | (defconst ps-mule-external-libraries | |
470 | '((builtin nil nil | |
471 | nil nil nil) | |
472 | (bdf ps-bdf nil | |
473 | bdf-generate-prologue bdf-generate-font bdf-generate-glyphs) | |
474 | (pcf nil nil | |
475 | pcf-generate-prologue pcf-generate-font pcf-generate-glyphs) | |
476 | (vflib nil nil | |
477 | vflib-generate-prologue vflib-generate-font vflib-generate-glyphs)) | |
478 | "Alist of information of external libraries to support PostScript printing. | |
479 | Each element has the form: | |
480 | ||
481 | (FONT-SRC FEATURE INITIALIZED-P PROLOGUE-FUNC FONT-FUNC GLYPHS-FUNC) | |
482 | ||
483 | FONT-SRC is the font source: builtin, bdf, pcf, or vflib. | |
484 | ||
485 | FEATURE is the feature that provide a facility to handle FONT-SRC. Except for | |
486 | `builtin' FONT-SRC, this feature is automatically `require'd before handling | |
487 | FONT-SRC. Currently, we only have the feature `ps-bdf'. | |
488 | ||
489 | INITIALIZED-P indicates if this library is initialized or not. | |
490 | ||
491 | PROLOGUE-FUNC is a function to generate PostScript code which define several | |
492 | PostScript procedures that will be called by FONT-FUNC and GLYPHS-FUNC. It is | |
493 | called with no argument, and should return a list of strings. | |
494 | ||
495 | FONT-FUNC is a function to generate PostScript code which define a new font. It | |
496 | is called with one argument FONT-SPEC, and should return a list of strings. | |
497 | ||
498 | GLYPHS-FUNC is a function to generate PostScript code which define glyphs of | |
499 | characters. It is called with three arguments FONT-SPEC, CODE-LIST, and BYTES, | |
500 | and should return a list of strings.") | |
501 | ||
502 | (defun ps-mule-init-external-library (font-spec) | |
503 | "Initialize external library specified by FONT-SPEC for PostScript printing. | |
504 | See the documentation of `ps-mule-get-font-spec' for FONT-SPEC's meaning." | |
505 | (let* ((font-src (ps-mule-font-spec-src font-spec)) | |
506 | (slot (assq font-src ps-mule-external-libraries))) | |
507 | (or (not font-src) | |
508 | (nth 2 slot) | |
509 | (let ((func (nth 3 slot))) | |
510 | (if func | |
511 | (progn | |
d0da93b3 | 512 | (require (nth 1 slot)) |
2cb842ae KH |
513 | (ps-output-prologue (funcall func)))) |
514 | (setcar (nthcdr 2 slot) t))))) | |
515 | ||
516 | ;; Cached glyph information of fonts, alist of: | |
517 | ;; (FONT-NAME ((FONT-TYPE-NUMBER . SCALED-FONT-NAME) ...) | |
518 | ;; cache CODE0 CODE1 ...) | |
519 | (defvar ps-mule-font-cache nil) | |
520 | ||
521 | (defun ps-mule-generate-font (font-spec charset) | |
522 | "Generate PostScript codes to define a new font in FONT-SPEC for CHARSET." | |
5d5bea97 EZ |
523 | (let* ((font-name (ps-mule-font-spec-name font-spec)) |
524 | (font-name (if (consp font-name) (car font-name) font-name)) | |
525 | (font-cache (assoc font-name ps-mule-font-cache)) | |
2cb842ae | 526 | (font-src (ps-mule-font-spec-src font-spec)) |
2cb842ae KH |
527 | (func (nth 4 (assq font-src ps-mule-external-libraries))) |
528 | (scaled-font-name | |
529 | (if (eq charset 'ascii) | |
530 | (format "f%d" ps-current-font) | |
531 | (format "f%02x-%d" | |
532 | (charset-id charset) ps-current-font)))) | |
533 | (and func (not font-cache) | |
534 | (ps-output-prologue (funcall func charset font-spec))) | |
535 | (ps-output-prologue | |
536 | (list (format "/%s %f /%s Def%sFontMule\n" | |
d36275d2 | 537 | scaled-font-name ps-font-size-internal font-name |
2cb842ae KH |
538 | (if (eq ps-mule-current-charset 'ascii) "Ascii" "")))) |
539 | (if font-cache | |
540 | (setcar (cdr font-cache) | |
541 | (cons (cons ps-current-font scaled-font-name) | |
542 | (nth 1 font-cache))) | |
543 | (setq font-cache (list font-name | |
544 | (list (cons ps-current-font scaled-font-name)) | |
545 | 'cache) | |
546 | ps-mule-font-cache (cons font-cache ps-mule-font-cache))) | |
547 | font-cache)) | |
548 | ||
549 | (defun ps-mule-generate-glyphs (font-spec code-list) | |
550 | "Generate PostScript codes which generate glyphs for CODE-LIST of FONT-SPEC." | |
551 | (let* ((font-src (ps-mule-font-spec-src font-spec)) | |
552 | (func (nth 5 (assq font-src ps-mule-external-libraries)))) | |
553 | (and func | |
554 | (ps-output-prologue | |
555 | (funcall func font-spec code-list | |
556 | (ps-mule-font-spec-bytes font-spec)))))) | |
557 | ||
558 | (defun ps-mule-prepare-font (font-spec string charset &optional no-setfont) | |
559 | "Generate PostScript codes to print STRING of CHARSET by font FONT-SPEC. | |
560 | ||
561 | The generated code is inserted on prologue part except the code that sets the | |
562 | current font (using PostScript procedure `FM'). | |
563 | ||
564 | If optional arg NO-SETFONT is non-nil, don't generate the code for setting the | |
565 | current font." | |
5d5bea97 EZ |
566 | (let* ((font-name (ps-mule-font-spec-name font-spec)) |
567 | (font-name (if (consp font-name) (car font-name) font-name)) | |
568 | (font-cache (assoc font-name ps-mule-font-cache))) | |
2cb842ae KH |
569 | (or (and font-cache (assq ps-current-font (nth 1 font-cache))) |
570 | (setq font-cache (ps-mule-generate-font font-spec charset))) | |
571 | (or no-setfont | |
572 | (let ((new-font (cdr (assq ps-current-font (nth 1 font-cache))))) | |
573 | (or (equal new-font ps-last-font) | |
574 | (progn | |
575 | (ps-output (format "/%s FM\n" new-font)) | |
576 | (setq ps-last-font new-font))))) | |
577 | (if (nth 5 (assq (ps-mule-font-spec-src font-spec) | |
578 | ps-mule-external-libraries)) | |
579 | ;; We have to generate PostScript codes which define glyphs. | |
580 | (let* ((cached-codes (nthcdr 2 font-cache)) | |
581 | (bytes (ps-mule-font-spec-bytes font-spec)) | |
582 | (len (length string)) | |
583 | (i 0) | |
584 | newcodes code) | |
585 | (while (< i len) | |
586 | (setq code (if (= bytes 1) | |
587 | (aref string i) | |
588 | (+ (* (aref string i) 256) (aref string (1+ i))))) | |
589 | (or (memq code cached-codes) | |
590 | (progn | |
591 | (setq newcodes (cons code newcodes)) | |
592 | (setcdr cached-codes (cons code (cdr cached-codes))))) | |
593 | (setq i (+ i bytes))) | |
594 | (and newcodes | |
595 | (ps-mule-generate-glyphs font-spec newcodes)))))) | |
596 | ||
597 | ;;;###autoload | |
598 | (defun ps-mule-prepare-ascii-font (string) | |
599 | "Setup special ASCII font for STRING. | |
600 | STRING should contain only ASCII characters." | |
601 | (let ((font-spec | |
602 | (ps-mule-get-font-spec | |
603 | 'ascii | |
604 | (car (nth ps-current-font (ps-font-alist 'ps-font-for-text)))))) | |
605 | (and font-spec | |
606 | (ps-mule-prepare-font font-spec string 'ascii)))) | |
607 | ||
608 | ;;;###autoload | |
609 | (defun ps-mule-set-ascii-font () | |
610 | (unless (eq ps-mule-current-charset 'ascii) | |
611 | (ps-set-font ps-current-font) | |
612 | (setq ps-mule-current-charset 'ascii))) | |
613 | ||
614 | ;; List of charsets of multi-byte characters in a text being printed. | |
615 | ;; If the text doesn't contain any multi-byte characters (i.e. only ASCII), | |
616 | ;; the value is nil. | |
617 | (defvar ps-mule-charset-list nil) | |
618 | ||
619 | ;; This is a PostScript code inserted in the header of generated PostScript. | |
620 | (defconst ps-mule-prologue | |
621 | "%%%% Start of Mule Section | |
622 | ||
623 | %% Working dictionary for general use. | |
624 | /MuleDict 10 dict def | |
625 | ||
bc4c1aae KH |
626 | %% Adjust /RelativeCompose properly by checking /BaselineOffset. |
627 | /AdjustRelativeCompose { % fontdict |- fontdict | |
628 | dup length 2 add dict begin | |
629 | { 1 index /FID ne { def } { pop pop } ifelse } forall | |
630 | currentdict /BaselineOffset known { | |
631 | BaselineOffset false eq { /BaselinfOffset 0 def } if | |
632 | } { | |
633 | /BaselineOffset 0 def | |
634 | } ifelse | |
635 | currentdict /RelativeCompose known not { | |
b77e0a82 | 636 | /RelativeCompose [ 0 0.1 ] def |
bc4c1aae KH |
637 | } { |
638 | RelativeCompose false ne { | |
3ea591bd KH |
639 | [ BaselineOffset RelativeCompose BaselineOffset add |
640 | [ FontMatrix { FontSize div } forall ] transform ] | |
641 | /RelativeCompose exch def | |
bc4c1aae KH |
642 | } if |
643 | } ifelse | |
644 | currentdict | |
645 | end | |
646 | } def | |
647 | ||
2cb842ae KH |
648 | %% Define already scaled font for non-ASCII character sets. |
649 | /DefFontMule { % fontname size basefont |- -- | |
bc4c1aae | 650 | findfont exch scalefont AdjustRelativeCompose definefont pop |
2cb842ae KH |
651 | } bind def |
652 | ||
653 | %% Define already scaled font for ASCII character sets. | |
654 | /DefAsciiFontMule { % fontname size basefont |- | |
655 | MuleDict begin | |
656 | findfont dup /Encoding get /ISOLatin1Encoding exch def | |
bc4c1aae | 657 | exch scalefont AdjustRelativeCompose reencodeFontISO |
2cb842ae KH |
658 | end |
659 | } def | |
660 | ||
d0da93b3 KH |
661 | /CurrentFont false def |
662 | ||
663 | %% Set the specified font to use. | |
664 | %% For non-ASCII font, don't install Ascent, etc. | |
2cb842ae | 665 | /FM { % fontname |- -- |
d0da93b3 KH |
666 | /font exch def |
667 | font /f0 eq font /f1 eq font /f2 eq font /f3 eq or or or { | |
668 | font F | |
669 | } { | |
670 | font findfont setfont | |
671 | } ifelse | |
2cb842ae KH |
672 | } bind def |
673 | ||
674 | %% Show vacant box for characters which don't have appropriate font. | |
675 | /SB { % count column |- -- | |
676 | SpaceWidth mul /w exch def | |
677 | 1 exch 1 exch { %for | |
678 | pop | |
679 | gsave | |
680 | 0 setlinewidth | |
681 | 0 Descent rmoveto w 0 rlineto | |
682 | 0 LineHeight rlineto w neg 0 rlineto closepath stroke | |
683 | grestore | |
684 | w 0 rmoveto | |
685 | } for | |
686 | } bind def | |
687 | ||
d0da93b3 KH |
688 | %% Flag to tell if we are now handling a composition. This is |
689 | %% defined here because both composition handler and bitmap font | |
2cb842ae | 690 | %% handler require it. |
d0da93b3 | 691 | /Composing false def |
2cb842ae KH |
692 | |
693 | %%%% End of Mule Section | |
694 | ||
695 | " | |
696 | "PostScript code for printing multi-byte characters.") | |
697 | ||
698 | (defvar ps-mule-prologue-generated nil) | |
699 | ||
700 | (defun ps-mule-prologue-generated () | |
701 | (unless ps-mule-prologue-generated | |
702 | (ps-output-prologue ps-mule-prologue) | |
703 | (setq ps-mule-prologue-generated t))) | |
704 | ||
d0da93b3 | 705 | (defun ps-mule-find-wrappoint (from to char-width &optional composition) |
2cb842ae KH |
706 | "Find the longest sequence which is printable in the current line. |
707 | ||
d0da93b3 KH |
708 | The search starts at FROM and goes until TO. |
709 | ||
710 | Optional 4th arg COMPOSITION, if non-nil, is information of | |
711 | composition starting at FROM. | |
712 | ||
713 | If COMPOSTION is nil, it is assumed that all characters between FROM | |
714 | and TO belong to a charset in `ps-mule-current-charset'. Otherwise, | |
715 | it is assumed that all characters between FROM and TO belong to the | |
716 | same composition. | |
2cb842ae KH |
717 | |
718 | CHAR-WIDTH is the average width of ASCII characters in the current font. | |
719 | ||
720 | Returns the value: | |
721 | ||
722 | (ENDPOS . RUN-WIDTH) | |
723 | ||
724 | Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of | |
725 | the sequence." | |
d0da93b3 | 726 | (if (or composition (eq ps-mule-current-charset 'composition)) |
2cb842ae | 727 | ;; We must draw one char by one. |
d0da93b3 KH |
728 | (let ((run-width (if composition |
729 | (nth 5 composition) | |
730 | (* (char-width (char-after from)) char-width)))) | |
2cb842ae KH |
731 | (if (> run-width ps-width-remaining) |
732 | (cons from ps-width-remaining) | |
d0da93b3 KH |
733 | (cons (if composition |
734 | (nth 1 composition) | |
735 | (ps-mule-next-point from)) | |
736 | run-width))) | |
2cb842ae KH |
737 | ;; We assume that all characters in this range have the same width. |
738 | (setq char-width (* char-width (charset-width ps-mule-current-charset))) | |
739 | (let ((run-width (* (chars-in-region from to) char-width))) | |
740 | (if (> run-width ps-width-remaining) | |
741 | (cons (min to | |
742 | (save-excursion | |
743 | (goto-char from) | |
744 | (forward-point | |
745 | (truncate (/ ps-width-remaining char-width))))) | |
746 | ps-width-remaining) | |
747 | (cons to run-width))))) | |
748 | ||
749 | ;;;###autoload | |
750 | (defun ps-mule-plot-string (from to &optional bg-color) | |
751 | "Generate PostScript code for ploting characters in the region FROM and TO. | |
752 | ||
753 | It is assumed that all characters in this region belong to the same charset. | |
754 | ||
755 | Optional argument BG-COLOR specifies background color. | |
756 | ||
757 | Returns the value: | |
758 | ||
759 | (ENDPOS . RUN-WIDTH) | |
760 | ||
761 | Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of | |
762 | the sequence." | |
763 | (setq ps-mule-current-charset (charset-after from)) | |
764 | (let* ((wrappoint (ps-mule-find-wrappoint | |
765 | from to (ps-avg-char-width 'ps-font-for-text))) | |
766 | (to (car wrappoint)) | |
767 | (font-type (car (nth ps-current-font | |
768 | (ps-font-alist 'ps-font-for-text)))) | |
769 | (font-spec (ps-mule-get-font-spec ps-mule-current-charset font-type)) | |
770 | (string (buffer-substring-no-properties from to))) | |
771 | (cond | |
772 | ((= from to) | |
773 | ;; We can't print any more characters in the current line. | |
774 | nil) | |
775 | ||
776 | (font-spec | |
777 | ;; We surely have a font for printing this character set. | |
778 | (ps-output-string (ps-mule-string-encoding font-spec string)) | |
779 | (ps-output " S\n")) | |
780 | ||
781 | ((eq ps-mule-current-charset 'latin-iso8859-1) | |
782 | ;; Latin-1 can be printed by a normal ASCII font. | |
783 | (ps-output-string (ps-mule-string-ascii string)) | |
784 | (ps-output " S\n")) | |
785 | ||
d0da93b3 | 786 | ;; This case is obsolete for Emacs 21. |
2cb842ae | 787 | ((eq ps-mule-current-charset 'composition) |
d0da93b3 | 788 | (ps-mule-plot-composition from (ps-mule-next-point from) bg-color)) |
2cb842ae KH |
789 | |
790 | (t | |
791 | ;; No way to print this charset. Just show a vacant box of an | |
792 | ;; appropriate width. | |
793 | (ps-output (format "%d %d SB\n" | |
794 | (length string) | |
795 | (if (eq ps-mule-current-charset 'composition) | |
796 | (char-width (char-after from)) | |
797 | (charset-width ps-mule-current-charset)))))) | |
798 | wrappoint)) | |
799 | ||
d0da93b3 KH |
800 | ;;;###autoload |
801 | (defun ps-mule-plot-composition (from to &optional bg-color) | |
802 | "Generate PostScript code for ploting composition in the region FROM and TO. | |
803 | ||
804 | It is assumed that all characters in this region belong to the same | |
805 | composition. | |
806 | ||
807 | Optional argument BG-COLOR specifies background color. | |
808 | ||
809 | Returns the value: | |
810 | ||
811 | (ENDPOS . RUN-WIDTH) | |
812 | ||
813 | Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of | |
814 | the sequence." | |
815 | (let* ((composition (find-composition from nil nil t)) | |
816 | (wrappoint (ps-mule-find-wrappoint | |
817 | from to (ps-avg-char-width 'ps-font-for-text) | |
818 | composition)) | |
819 | (to (car wrappoint)) | |
820 | (font-type (car (nth ps-current-font | |
821 | (ps-font-alist 'ps-font-for-text))))) | |
822 | (if (< from to) | |
823 | ;; We can print this composition in the current line. | |
824 | (let ((components (nth 2 composition))) | |
825 | (ps-mule-plot-components | |
826 | (ps-mule-prepare-font-for-components components font-type) | |
827 | (if (nth 3 composition) "RLC" "RBC")))) | |
828 | wrappoint)) | |
829 | ||
830 | ;; Prepare font of FONT-TYPE for printing COMPONENTS. By side effect, | |
831 | ;; change character elements in COMPONENTS to the form: | |
832 | ;; ENCODED-STRING or (FONTNAME . ENCODED-STRING) | |
833 | ;; and change rule elements to the encoded value (integer). | |
834 | ;; The latter form is used if we much change font for the character. | |
835 | ||
836 | (defun ps-mule-prepare-font-for-components (components font-type) | |
837 | (let ((len (length components)) | |
838 | (i 0) | |
839 | elt) | |
840 | (while (< i len) | |
841 | (setq elt (aref components i)) | |
842 | (if (consp elt) | |
843 | ;; ELT is a composition rule. | |
844 | (setq elt (encode-composition-rule elt)) | |
845 | ;; ELT is a glyph character. | |
846 | (let* ((charset (char-charset elt)) | |
847 | (font (or (eq charset ps-mule-current-charset) | |
848 | (if (eq charset 'ascii) | |
849 | (format "/f%d" ps-current-font) | |
850 | (format "/f%02x-%d" | |
851 | (charset-id charset) ps-current-font)))) | |
852 | str) | |
853 | (setq ps-mule-current-charset charset | |
854 | str (ps-mule-string-encoding | |
855 | (ps-mule-get-font-spec charset font-type) | |
856 | (char-to-string elt) | |
857 | 'no-setfont)) | |
858 | (if (stringp font) | |
859 | (setq elt (cons font str) ps-last-font font) | |
860 | (setq elt str)))) | |
861 | (aset components i elt) | |
862 | (setq i (1+ i)))) | |
863 | components) | |
864 | ||
865 | (defun ps-mule-plot-components (components tail) | |
866 | (let ((elt (aref components 0)) | |
867 | (len (length components)) | |
868 | (i 1)) | |
869 | (ps-output "[ ") | |
870 | (if (stringp elt) | |
871 | (ps-output-string elt) | |
872 | (ps-output (car elt) " ") | |
873 | (ps-output-string (cdr elt))) | |
874 | (while (< i len) | |
875 | (setq elt (aref components i) i (1+ i)) | |
876 | (ps-output " ") | |
877 | (cond ((stringp elt) | |
878 | (ps-output-string elt)) | |
879 | ((consp elt) | |
880 | (ps-output (car elt) " ") | |
881 | (ps-output-string (cdr elt))) | |
882 | (t ; i.e. (integerp elt) | |
883 | (ps-output (format "%d" elt))))) | |
884 | (ps-output " ] " tail "\n"))) | |
885 | ||
2cb842ae KH |
886 | ;; Composite font support |
887 | ||
d0da93b3 | 888 | (defvar ps-mule-composition-prologue-generated nil) |
2cb842ae | 889 | |
d0da93b3 KH |
890 | (defconst ps-mule-composition-prologue |
891 | "%%%% Character compositition handler | |
892 | /RelativeCompositionSkip 0.4 def | |
2cb842ae KH |
893 | |
894 | %% Get a bounding box (relative to currentpoint) of STR. | |
895 | /GetPathBox { % str |- -- | |
896 | gsave | |
897 | currentfont /FontType get 3 eq { %ifelse | |
898 | stringwidth pop pop | |
899 | } { | |
bc4c1aae | 900 | currentpoint /y exch def /x exch def |
2cb842ae | 901 | false charpath flattenpath pathbbox |
bc4c1aae KH |
902 | y sub /URY exch def x sub /URX exch def |
903 | y sub /LLY exch def x sub /LLX exch def | |
2cb842ae KH |
904 | } ifelse |
905 | grestore | |
906 | } bind def | |
907 | ||
d0da93b3 KH |
908 | %% Apply effects (underline, strikeout, overline, box) to the |
909 | %% rectangle specified by TOP BOTTOM LEFT RIGHT. | |
910 | /SpecialEffect { % -- |- -- | |
911 | currentpoint dup TOP add /yy exch def BOTTOM add /YY exch def | |
912 | dup LEFT add /xx exch def RIGHT add /XX exch def | |
913 | %% Adjust positions for future shadowing. | |
914 | Effect 8 and 0 ne { | |
915 | /yy yy Yshadow add def | |
916 | /XX XX Xshadow add def | |
917 | } if | |
918 | Effect 1 and 0 ne { UnderlinePosition Hline } if % underline | |
919 | Effect 2 and 0 ne { StrikeoutPosition Hline } if % strikeout | |
920 | Effect 4 and 0 ne { OverlinePosition Hline } if % overline | |
921 | bg { % background | |
922 | true | |
923 | Effect 16 and 0 ne {SpaceBackground doBox} { xx yy XX YY doRect} ifelse | |
924 | } if | |
925 | Effect 16 and 0 ne { false 0 doBox } if % box | |
926 | } def | |
2cb842ae | 927 | |
d0da93b3 KH |
928 | %% Show STR with effects (shadow, outline). |
929 | /ShowWithEffect { % str |- -- | |
930 | Effect 8 and 0 ne { dup doShadow } if | |
931 | Effect 32 and 0 ne { true doOutline } { show } ifelse | |
932 | } def | |
2cb842ae | 933 | |
d0da93b3 KH |
934 | %% Draw COMPONETS which have the form [ font0? [str0 xoff0 yoff0] ... ]. |
935 | /ShowComponents { % compoents |- - | |
936 | LEFT 0 lt { LEFT neg 0 rmoveto } if | |
937 | { | |
938 | dup type /nametype eq { % font | |
939 | FM | |
940 | } { % [ str xoff yoff ] | |
941 | gsave | |
942 | aload pop rmoveto ShowWithEffect | |
943 | grestore | |
944 | } ifelse | |
945 | } forall | |
946 | RIGHT 0 rmoveto | |
947 | } def | |
948 | ||
949 | %% Show relative composition. | |
950 | /RLC { % [ font0? str0 font1? str1 ... fontN? strN ] |- -- | |
951 | /components exch def | |
952 | /Composing true def | |
953 | /first true def | |
2cb842ae | 954 | gsave |
d0da93b3 KH |
955 | [ components { |
956 | /elt exch def | |
957 | elt type /nametype eq { % font | |
958 | elt dup FM | |
959 | } { first { % first string | |
960 | /first false def | |
961 | elt GetPathBox | |
962 | %% Bounding box of overall glyphs. | |
963 | /LEFT LLX def | |
964 | /RIGHT URX def | |
965 | /TOP URY def | |
966 | /BOTTOM LLY def | |
967 | currentfont /RelativeCompose known { | |
968 | /relative currentfont /RelativeCompose get def | |
969 | } { | |
970 | %% Disable relative composition by setting sufficiently low | |
971 | %% and high positions. | |
972 | /relative [ -100000 100000 ] def | |
973 | } ifelse | |
974 | [ elt 0 0 ] | |
975 | } { % other strings | |
976 | elt GetPathBox | |
977 | [ elt % str | |
978 | LLX 0 lt { RIGHT } { 0 } ifelse % xoff | |
979 | LLY relative 1 get ge { % compose on TOP | |
980 | TOP LLY sub RelativeCompositionSkip add % yoff | |
981 | /TOP TOP URY LLY sub add RelativeCompositionSkip add def | |
982 | } { URY relative 0 get le { % compose under BOTTOM | |
983 | BOTTOM URY sub RelativeCompositionSkip sub % yoff | |
984 | /BOTTOM BOTTOM URY LLY sub sub | |
985 | RelativeCompositionSkip sub def | |
986 | } { | |
987 | 0 % yoff | |
988 | URY TOP gt { /TOP URY def } if | |
989 | LLY BOTTOM lt { /BOTTOM LLY def } if | |
990 | } ifelse } ifelse | |
991 | ] | |
992 | URX RIGHT gt { /RIGHT URX def } if | |
993 | } ifelse } ifelse | |
994 | } forall ] /components exch def | |
2cb842ae | 995 | grestore |
2cb842ae | 996 | |
d0da93b3 KH |
997 | %% Reflect special effects. |
998 | SpecialEffect | |
999 | ||
1000 | %% Draw components while ignoring effects other than shadow and outline. | |
1001 | components ShowComponents | |
1002 | /Composing false def | |
1003 | ||
1004 | } def | |
1005 | ||
1006 | %% Show rule-base composition. | |
1007 | /RBC { % [ font0? str0 rule1 font1? str1 rule2 ... strN ] |- -- | |
1008 | /components exch def | |
1009 | /Composing true def | |
1010 | /first true def | |
2cb842ae | 1011 | gsave |
d0da93b3 KH |
1012 | [ components { |
1013 | /elt exch def | |
1014 | elt type /nametype eq { % font | |
1015 | elt dup FM | |
1016 | } { elt type /integertype eq { % rule | |
1017 | %% This RULE decoding should be compatible with macro | |
1018 | %% COMPOSITION_DECODE_RULE in emcas/src/composite.h. | |
1019 | elt 12 idiv dup 3 mod /grefx exch def 3 idiv /grefy exch def | |
1020 | elt 12 mod dup 3 mod /nrefx exch def 3 idiv /nrefy exch def | |
1021 | } { first { % first string | |
1022 | /first false def | |
1023 | elt GetPathBox | |
1024 | %% Bounding box of overall glyphs. | |
1025 | /LEFT LLX def | |
1026 | /RIGHT URX def | |
1027 | /TOP URY def | |
1028 | /BOTTOM LLY def | |
1029 | /WIDTH RIGHT LEFT sub def | |
1030 | [ elt 0 0 ] | |
1031 | } { % other strings | |
1032 | elt GetPathBox | |
1033 | /width URX LLX sub def | |
1034 | /height URY LLY sub def | |
1035 | /left LEFT [ 0 WIDTH 2 div WIDTH ] grefx get add | |
1036 | [ 0 width 2 div width ] nrefx get sub def | |
1037 | /bottom [ TOP 0 BOTTOM TOP BOTTOM add 2 div ] grefy get | |
1038 | [ height LLY neg 0 height 2 div ] nrefy get sub def | |
1039 | %% Update bounding box | |
1040 | left LEFT lt { /LEFT left def } if | |
1041 | left width add RIGHT gt { /RIGHT left width add def } if | |
1042 | /WIDTH RIGHT LEFT sub def | |
1043 | bottom BOTTOM lt { /BOTTOM bottom def } if | |
1044 | bottom height add TOP gt { /TOP bottom height add def } if | |
1045 | [ elt left LLX sub bottom LLY sub ] | |
1046 | } ifelse } ifelse } ifelse | |
1047 | } forall ] /components exch def | |
2cb842ae | 1048 | grestore |
d0da93b3 KH |
1049 | |
1050 | %% Reflect special effects. | |
1051 | SpecialEffect | |
1052 | ||
1053 | %% Draw components while ignoring effects other than shadow and outline. | |
1054 | components ShowComponents | |
1055 | ||
1056 | /Composing false def | |
1057 | } def | |
1058 | %%%% End of character composition handler | |
2cb842ae KH |
1059 | |
1060 | " | |
d0da93b3 | 1061 | "PostScript code for printing character compositition.") |
2cb842ae KH |
1062 | |
1063 | (defun ps-mule-string-ascii (str) | |
1064 | (ps-set-font ps-current-font) | |
1065 | (string-as-unibyte (encode-coding-string str 'iso-latin-1))) | |
1066 | ||
d0da93b3 KH |
1067 | ;; Encode STR for a font specified by FONT-SPEC and return the result. |
1068 | ;; If necessary, Postscript codes for the font and glyphs to print | |
1069 | ;; STRING are generated. | |
1070 | (defun ps-mule-string-encoding (font-spec str &optional no-setfont) | |
2cb842ae KH |
1071 | (let ((encoding (ps-mule-font-spec-encoding font-spec))) |
1072 | (setq str | |
1073 | (string-as-unibyte | |
1074 | (cond ((coding-system-p encoding) | |
1075 | (encode-coding-string str encoding)) | |
1076 | ((functionp encoding) | |
1077 | (funcall encoding str)) | |
1078 | (encoding | |
1079 | (error "Invalid coding system or function: %s" encoding)) | |
1080 | (t | |
1081 | str)))) | |
1082 | (if (ps-mule-font-spec-src font-spec) | |
d0da93b3 KH |
1083 | (ps-mule-prepare-font font-spec str ps-mule-current-charset no-setfont) |
1084 | (or no-setfont | |
1085 | (ps-set-font ps-current-font))) | |
2cb842ae KH |
1086 | str)) |
1087 | ||
1088 | ;; Bitmap font support | |
1089 | ||
1090 | (defvar ps-mule-bitmap-prologue-generated nil) | |
1091 | ||
1092 | (defconst ps-mule-bitmap-prologue | |
1093 | "%%%% Bitmap font handler | |
1094 | ||
1095 | /str7 7 string def % working area | |
1096 | ||
1097 | %% We grow the dictionary one bunch (1024 entries) by one. | |
1098 | /BitmapDictArray 256 array def | |
1099 | /BitmapDictLength 1024 def | |
1100 | /BitmapDictIndex -1 def | |
1101 | ||
1102 | /NewBitmapDict { % -- |- -- | |
1103 | /BitmapDictIndex BitmapDictIndex 1 add def | |
1104 | BitmapDictArray BitmapDictIndex BitmapDictLength dict put | |
1105 | } bind def | |
1106 | ||
1107 | %% Make at least one dictionary. | |
1108 | NewBitmapDict | |
1109 | ||
1110 | /AddBitmap { % gloval-charname bitmap-data |- -- | |
1111 | BitmapDictArray BitmapDictIndex get | |
1112 | dup length BitmapDictLength ge { | |
1113 | pop | |
1114 | NewBitmapDict | |
1115 | BitmapDictArray BitmapDictIndex get | |
1116 | } if | |
1117 | 3 1 roll put | |
1118 | } bind def | |
1119 | ||
1120 | /GetBitmap { % gloval-charname |- bitmap-data | |
1121 | 0 1 BitmapDictIndex { BitmapDictArray exch get begin } for | |
1122 | load | |
1123 | 0 1 BitmapDictIndex { pop end } for | |
1124 | } bind def | |
1125 | ||
1126 | %% Return a global character name which can be used as a key in the | |
1127 | %% bitmap dictionary. | |
1128 | /GlobalCharName { % fontidx code1 code2 |- gloval-charname | |
1129 | exch 256 mul add exch 65536 mul add 16777216 add 16 str7 cvrs 0 66 put | |
1130 | str7 cvn | |
1131 | } bind def | |
1132 | ||
1133 | %% Character code holder for a 2-byte character. | |
1134 | /FirstCode -1 def | |
1135 | ||
1136 | %% Glyph rendering procedure | |
1137 | /BuildGlyphCommon { % fontdict charname |- -- | |
1138 | 1 index /FontDimension get 1 eq { /FirstCode 0 store } if | |
1139 | NameIndexDict exch get % STACK: fontdict charcode | |
1140 | FirstCode 0 lt { %ifelse | |
1141 | %% This is the first byte of a 2-byte character. Just | |
1142 | %% remember it for the moment. | |
1143 | /FirstCode exch store | |
1144 | pop | |
1145 | 0 0 setcharwidth | |
1146 | } { | |
1147 | 1 index /FontSize get /size exch def | |
1148 | 1 index /FontSpaceWidthRatio get /ratio exch def | |
1149 | 1 index /FontIndex get exch FirstCode exch | |
1150 | GlobalCharName GetBitmap /bmp exch def | |
1151 | %% bmp == [ DWIDTH BBX-WIDTH BBX-HEIGHT BBX-XOFF BBX-YOFF BITMAP ] | |
d0da93b3 | 1152 | Composing { %ifelse |
2cb842ae KH |
1153 | /FontMatrix get [ exch { size div } forall ] /mtrx exch def |
1154 | bmp 3 get bmp 4 get mtrx transform | |
bc4c1aae | 1155 | /LLY exch def /LLX exch def |
2cb842ae | 1156 | bmp 1 get bmp 3 get add bmp 2 get bmp 4 get add mtrx transform |
bc4c1aae | 1157 | /URY exch def /URX exch def |
2cb842ae KH |
1158 | } { |
1159 | pop | |
1160 | } ifelse | |
1161 | /FirstCode -1 store | |
1162 | ||
1163 | bmp 0 get SpaceWidthRatio ratio div mul size div 0 % wx wy | |
1164 | setcharwidth % We can't use setcachedevice here. | |
1165 | ||
1166 | bmp 1 get 0 gt bmp 2 get 0 gt and { | |
1167 | bmp 1 get bmp 2 get % width height | |
1168 | true % polarity | |
1169 | [ size 0 0 size neg bmp 3 get neg bmp 2 get bmp 4 get add ] % matrix | |
1170 | bmp 5 1 getinterval cvx % datasrc | |
1171 | imagemask | |
1172 | } if | |
1173 | } ifelse | |
1174 | } bind def | |
1175 | ||
1176 | /BuildCharCommon { | |
1177 | 1 index /Encoding get exch get | |
1178 | 1 index /BuildGlyph get exec | |
1179 | } bind def | |
1180 | ||
1181 | %% Bitmap font creater | |
1182 | ||
1183 | %% Common Encoding shared by all bitmap fonts. | |
1184 | /EncodingCommon 256 array def | |
1185 | %% Mapping table from character name to character code. | |
1186 | /NameIndexDict 256 dict def | |
1187 | 0 1 255 { %for | |
1188 | /idx exch def | |
1189 | /idxname idx 256 add 16 (XXX) cvrs dup 0 67 put cvn def % `C' == 67 | |
1190 | EncodingCommon idx idxname put | |
1191 | NameIndexDict idxname idx put | |
1192 | } for | |
1193 | ||
1194 | /GlobalFontIndex 0 def | |
1195 | ||
1196 | %% fontname dim col fontsize relative-compose baseline-offset fbbx |- -- | |
1197 | /BitmapFont { | |
1198 | 15 dict begin | |
1199 | /FontBBox exch def | |
1200 | /BaselineOffset exch def | |
1201 | /RelativeCompose exch def | |
1202 | /FontSize exch def | |
1203 | /FontBBox [ FontBBox { FontSize div } forall ] def | |
1204 | FontBBox 2 get FontBBox 0 get sub exch div | |
1205 | /FontSpaceWidthRatio exch def | |
1206 | /FontDimension exch def | |
1207 | /FontIndex GlobalFontIndex def | |
1208 | /FontType 3 def | |
1209 | /FontMatrix matrix def | |
1210 | /Encoding EncodingCommon def | |
1211 | /BuildGlyph { BuildGlyphCommon } def | |
1212 | /BuildChar { BuildCharCommon } def | |
1213 | currentdict end | |
1214 | definefont pop | |
1215 | /GlobalFontIndex GlobalFontIndex 1 add def | |
1216 | } bind def | |
1217 | ||
1218 | %% Define a new bitmap font. | |
1219 | %% fontname dim col fontsize relative-compose baseline-offset fbbx |- -- | |
1220 | /NF { | |
1221 | /fbbx exch def | |
1222 | %% Convert BDF's FontBoundingBox to PostScript's FontBBox | |
1223 | [ fbbx 2 get fbbx 3 get | |
1224 | fbbx 2 get fbbx 0 get add fbbx 3 get fbbx 1 get add ] | |
1225 | BitmapFont | |
1226 | } bind def | |
1227 | ||
1228 | %% Define a glyph for the specified font and character. | |
1229 | /NG { % fontname charcode bitmap-data |- -- | |
1230 | /bmp exch def | |
1231 | exch findfont dup /BaselineOffset get bmp 4 get add bmp exch 4 exch put | |
1232 | /FontIndex get exch | |
1233 | dup 256 idiv exch 256 mod GlobalCharName | |
1234 | bmp AddBitmap | |
1235 | } bind def | |
1236 | %%%% End of bitmap font handler | |
1237 | ||
1238 | ") | |
1239 | ||
1240 | ;; External library support. | |
1241 | ||
1242 | ;; The following three functions are to be called from external | |
1243 | ;; libraries which support bitmap fonts (e.g. `bdf') to get | |
1244 | ;; appropriate PostScript code. | |
1245 | ||
1246 | (defun ps-mule-generate-bitmap-prologue () | |
1247 | (unless ps-mule-bitmap-prologue-generated | |
1248 | (setq ps-mule-bitmap-prologue-generated t) | |
1249 | (list ps-mule-bitmap-prologue))) | |
1250 | ||
1251 | (defun ps-mule-generate-bitmap-font (&rest args) | |
1252 | (list (apply 'format "/%s %d %d %f %S %d %S NF\n" args))) | |
1253 | ||
1254 | (defun ps-mule-generate-bitmap-glyph (font-name code dwidth bbx bitmap) | |
1255 | (format "/%s %d [ %d %d %d %d %d <%s> ] NG\n" | |
1256 | font-name code | |
1257 | dwidth (aref bbx 0) (aref bbx 1) (aref bbx 2) (aref bbx 3) | |
1258 | bitmap)) | |
1259 | ||
1260 | ;; Mule specific initializers. | |
1261 | ||
1262 | ;;;###autoload | |
1263 | (defun ps-mule-initialize () | |
1264 | "Initialize global data for printing multi-byte characters." | |
1265 | (setq ps-mule-font-cache nil | |
1266 | ps-mule-prologue-generated nil | |
d0da93b3 | 1267 | ps-mule-composition-prologue-generated nil |
2cb842ae KH |
1268 | ps-mule-bitmap-prologue-generated nil) |
1269 | (mapcar `(lambda (x) (setcar (nthcdr 2 x) nil)) | |
1270 | ps-mule-external-libraries)) | |
1271 | ||
1272 | ;;;###autoload | |
1273 | (defun ps-mule-begin-job (from to) | |
1274 | "Start printing job for multi-byte chars between FROM and TO. | |
1275 | This checks if all multi-byte characters in the region are printable or not." | |
1276 | (setq ps-mule-charset-list nil | |
1277 | ps-mule-font-info-database | |
1278 | (cond ((eq ps-multibyte-buffer 'non-latin-printer) | |
1279 | ps-mule-font-info-database-ps) | |
1280 | ((eq ps-multibyte-buffer 'bdf-font) | |
1281 | ps-mule-font-info-database-bdf) | |
1282 | ((eq ps-multibyte-buffer 'bdf-font-except-latin) | |
1283 | ps-mule-font-info-database-ps-bdf) | |
1284 | (t | |
d7d83b6e | 1285 | ps-mule-font-info-database-default))) |
2cb842ae KH |
1286 | (and (boundp 'enable-multibyte-characters) |
1287 | enable-multibyte-characters | |
1288 | ;; Initialize `ps-mule-charset-list'. If some characters aren't | |
1289 | ;; printable, warn it. | |
1290 | (let ((charsets (find-charset-region from to))) | |
f37bad85 KH |
1291 | (setq charsets (delq 'ascii (delq 'unknown (delq nil charsets))) |
1292 | ps-mule-charset-list charsets) | |
2cb842ae KH |
1293 | (save-excursion |
1294 | (goto-char from) | |
1295 | (and (search-forward "\200" to t) | |
1296 | (setq ps-mule-charset-list | |
1297 | (cons 'composition ps-mule-charset-list)))) | |
1298 | (while charsets | |
1299 | (setq charsets | |
1300 | (cond | |
1301 | ((or (eq (car charsets) 'composition) | |
1302 | (ps-mule-printable-p (car charsets))) | |
1303 | (cdr charsets)) | |
1304 | ((y-or-n-p | |
1305 | "Font for some characters not found, continue anyway? ") | |
1306 | nil) | |
1307 | (t | |
1308 | (error "Printing cancelled"))))))) | |
1309 | ||
1310 | (setq ps-mule-current-charset 'ascii) | |
1311 | ||
d0da93b3 KH |
1312 | (if (and (nth 2 (find-composition from to)) |
1313 | (not ps-mule-composition-prologue-generated)) | |
1314 | (progn | |
1315 | (ps-mule-prologue-generated) | |
1316 | (ps-output-prologue ps-mule-composition-prologue) | |
1317 | (setq ps-mule-composition-prologue-generated t))) | |
1318 | ||
2cb842ae KH |
1319 | (if ps-mule-charset-list |
1320 | (let ((the-list ps-mule-charset-list) | |
1321 | font-spec elt) | |
1322 | (ps-mule-prologue-generated) | |
1323 | ;; If external functions are necessary, generate prologues for them. | |
1324 | (while the-list | |
1325 | (setq elt (car the-list) | |
1326 | the-list (cdr the-list)) | |
1327 | (cond ((and (eq elt 'composition) | |
d0da93b3 KH |
1328 | (not ps-mule-composition-prologue-generated)) |
1329 | (ps-output-prologue ps-mule-composition-prologue) | |
1330 | (setq ps-mule-composition-prologue-generated t)) | |
2cb842ae KH |
1331 | ((setq font-spec (ps-mule-get-font-spec elt 'normal)) |
1332 | (ps-mule-init-external-library font-spec)))))) | |
1333 | ||
1334 | ;; If ASCII font is also specified in ps-mule-font-info-database, | |
1335 | ;; use it istead of what specified in ps-font-info-database. | |
1336 | (let ((font-spec (ps-mule-get-font-spec 'ascii 'normal))) | |
1337 | (if font-spec | |
1338 | (progn | |
1339 | (ps-mule-prologue-generated) | |
1340 | (ps-mule-init-external-library font-spec) | |
1341 | (let ((font (ps-font-alist 'ps-font-for-text)) | |
1342 | (ps-current-font 0)) | |
1343 | (while font | |
1344 | ;; Be sure to download a glyph for SPACE in advance. | |
1345 | (ps-mule-prepare-font (ps-mule-get-font-spec 'ascii (car font)) | |
1346 | " " 'ascii 'no-setfont) | |
1347 | (setq font (cdr font) | |
1348 | ps-current-font (1+ ps-current-font))))))) | |
1349 | ||
1350 | (if ps-mule-charset-list | |
1351 | ;; We must change this regexp for multi-byte buffer. | |
1352 | (setq ps-control-or-escape-regexp | |
1353 | (cond ((eq ps-print-control-characters '8-bit) | |
1354 | "[^\040-\176]") | |
1355 | ((eq ps-print-control-characters 'control-8-bit) | |
1356 | (string-as-multibyte "[^\040-\176\240-\377]")) | |
1357 | ((eq ps-print-control-characters 'control) | |
1358 | (string-as-multibyte "[^\040-\176\200-\377]")) | |
16c1fb84 | 1359 | (t (string-as-multibyte "[^\000-\011\013\015-\377]")))))) |
2cb842ae KH |
1360 | |
1361 | ;;;###autoload | |
1362 | (defun ps-mule-begin-page () | |
1363 | (setq ps-mule-current-charset 'ascii)) | |
1364 | ||
1365 | ||
1366 | (provide 'ps-mule) | |
1367 | ||
1368 | ;;; ps-mule.el ends here |