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1 | ;;; ps-def.el --- XEmacs and Emacs definitions for ps-print |
2 | ||
ae940284 | 3 | ;; Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc. |
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4 | |
5 | ;; Author: Vinicius Jose Latorre <viniciusjl@ig.com.br> | |
6 | ;; Kenichi Handa <handa@m17n.org> (multi-byte characters) | |
7 | ;; Maintainer: Kenichi Handa <handa@m17n.org> (multi-byte characters) | |
8 | ;; Vinicius Jose Latorre <viniciusjl@ig.com.br> | |
9 | ;; Keywords: wp, print, PostScript | |
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10 | ;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre |
11 | ||
12 | ;; This file is part of GNU Emacs. | |
13 | ||
eb3fa2cf GM |
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 3 of the License, or | |
17 | ;; (at your option) 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. If not, see <http://www.gnu.org/licenses/>. | |
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26 | |
27 | ;;; Commentary: | |
28 | ||
29 | ;; See ps-print.el for documentation. | |
30 | ||
31 | ;;; Code: | |
32 | ||
f6bcd65f GM |
33 | (eval-and-compile |
34 | (unless (fboundp 'declare-function) (defmacro declare-function (&rest r)))) | |
35 | ||
36 | (declare-function ps-plot-with-face "ps-print" (from to face)) | |
37 | (declare-function ps-plot-string "ps-print" (string)) | |
38 | ||
39 | (defvar ps-bold-faces) ; in ps-print.el | |
40 | (defvar ps-italic-faces) | |
41 | ||
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42 | |
43 | \f | |
44 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
45 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
46 | ;; XEmacs Definitions | |
47 | ||
48 | ||
49 | (cond | |
9e53076e | 50 | ((featurep 'xemacs) ; XEmacs |
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51 | |
52 | ||
53 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
54 | ;; ps-bdf | |
55 | ||
d73d5c1c | 56 | (defvar installation-directory nil) |
9e53076e | 57 | (defvar coding-system-for-read) |
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58 | |
59 | ||
60 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
61 | ;; ps-mule | |
62 | ||
63 | (defvar leading-code-private-22 157) | |
64 | ||
65 | (or (fboundp 'charset-bytes) | |
66 | (defun charset-bytes (charset) 1)) ; ascii | |
67 | ||
68 | (or (fboundp 'charset-dimension) | |
69 | (defun charset-dimension (charset) 1)) ; ascii | |
70 | ||
71 | (or (fboundp 'charset-id) | |
72 | (defun charset-id (charset) 0)) ; ascii | |
73 | ||
74 | (or (fboundp 'charset-width) | |
75 | (defun charset-width (charset) 1)) ; ascii | |
76 | ||
77 | (or (fboundp 'find-charset-region) | |
78 | (defun find-charset-region (beg end &optional table) | |
79 | (list 'ascii))) | |
80 | ||
81 | (or (fboundp 'char-width) | |
82 | (defun char-width (char) 1)) ; ascii | |
83 | ||
84 | (or (fboundp 'chars-in-region) | |
85 | (defun chars-in-region (beg end) | |
86 | (- (max beg end) (min beg end)))) | |
87 | ||
88 | (or (fboundp 'forward-point) | |
89 | (defun forward-point (arg) | |
90 | (save-excursion | |
91 | (let ((count (abs arg)) | |
92 | (step (if (zerop arg) | |
93 | 0 | |
94 | (/ arg arg)))) | |
95 | (while (and (> count 0) | |
96 | (< (point-min) (point)) (< (point) (point-max))) | |
97 | (forward-char step) | |
98 | (setq count (1- count))) | |
99 | (+ (point) (* count step)))))) | |
100 | ||
101 | (or (fboundp 'decompose-composite-char) | |
102 | (defun decompose-composite-char (char &optional type | |
103 | with-composition-rule) | |
104 | nil)) | |
105 | ||
106 | (or (fboundp 'encode-coding-string) | |
107 | (defun encode-coding-string (string coding-system &optional nocopy) | |
108 | (if nocopy | |
109 | string | |
110 | (copy-sequence string)))) | |
111 | ||
112 | (or (fboundp 'coding-system-p) | |
113 | (defun coding-system-p (obj) nil)) | |
114 | ||
115 | (or (fboundp 'ccl-execute-on-string) | |
116 | (defun ccl-execute-on-string (ccl-prog status str | |
117 | &optional contin unibyte-p) | |
118 | str)) | |
119 | ||
120 | (or (fboundp 'define-ccl-program) | |
121 | (defmacro define-ccl-program (name ccl-program &optional doc) | |
122 | `(defconst ,name nil ,doc))) | |
123 | ||
124 | (or (fboundp 'multibyte-string-p) | |
125 | (defun multibyte-string-p (str) | |
126 | (let ((len (length str)) | |
127 | (i 0) | |
128 | multibyte) | |
129 | (while (and (< i len) (not (setq multibyte (> (aref str i) 255)))) | |
130 | (setq i (1+ i))) | |
131 | multibyte))) | |
132 | ||
133 | (or (fboundp 'string-make-multibyte) | |
134 | (defalias 'string-make-multibyte 'copy-sequence)) | |
135 | ||
136 | (or (fboundp 'encode-char) | |
137 | (defun encode-char (ch ccs) | |
138 | ch)) | |
139 | ||
140 | ||
141 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
142 | ;; ps-print | |
143 | ||
144 | ;; GNU Emacs | |
145 | (or (fboundp 'line-beginning-position) | |
146 | (defun line-beginning-position (&optional n) | |
147 | (save-excursion | |
148 | (and n (/= n 1) (forward-line (1- n))) | |
149 | (beginning-of-line) | |
150 | (point)))) | |
151 | ||
152 | ||
153 | ;; GNU Emacs | |
154 | (or (fboundp 'find-composition) | |
155 | (defalias 'find-composition 'ignore)) | |
156 | ||
157 | ||
158 | (defun ps-xemacs-color-name (color) | |
159 | (if (color-specifier-p color) | |
160 | (color-name color) | |
161 | color)) | |
162 | ||
163 | ||
164 | (defalias 'ps-mark-active-p 'region-active-p) | |
165 | ||
166 | ||
167 | (defun ps-face-foreground-name (face) | |
168 | (ps-xemacs-color-name (face-foreground face))) | |
169 | ||
170 | ||
171 | (defun ps-face-background-name (face) | |
172 | (ps-xemacs-color-name (face-background face))) | |
173 | ||
174 | ||
9e53076e | 175 | (defalias 'ps-frame-parameter 'frame-property) |
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176 | |
177 | ||
178 | ;; Return t if the device (which can be changed during an emacs session) | |
179 | ;; can handle colors. | |
037f214b GM |
180 | (defun ps-color-device () |
181 | (eq (device-class) 'color)) | |
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182 | |
183 | (defun ps-mapper (extent list) | |
184 | (nconc list | |
185 | (list (list (extent-start-position extent) 'push extent) | |
186 | (list (extent-end-position extent) 'pull extent))) | |
187 | nil) | |
188 | ||
189 | ||
190 | (defun ps-extent-sorter (a b) | |
191 | (< (extent-priority a) (extent-priority b))) | |
192 | ||
193 | ||
194 | (defun ps-xemacs-face-kind-p (face kind kind-regex) | |
195 | (let* ((frame-font (or (face-font-instance face) | |
196 | (face-font-instance 'default))) | |
197 | (kind-cons | |
198 | (and frame-font | |
199 | (assq kind | |
200 | (font-instance-properties frame-font)))) | |
201 | (kind-spec (cdr-safe kind-cons)) | |
202 | (case-fold-search t)) | |
203 | (and kind-spec (string-match kind-regex kind-spec)))) | |
204 | ||
205 | ||
206 | ;; to avoid XEmacs compilation gripes | |
9e53076e | 207 | (defvar coding-system-for-write) |
9e53076e | 208 | (defvar buffer-file-coding-system) |
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209 | |
210 | ||
211 | (and (fboundp 'find-coding-system) | |
212 | (or (funcall 'find-coding-system 'raw-text-unix) | |
213 | (funcall 'copy-coding-system 'no-conversion-unix 'raw-text-unix))) | |
214 | ||
215 | ||
216 | (defun ps-color-values (x-color) | |
217 | (let ((color (ps-xemacs-color-name x-color))) | |
218 | (cond | |
219 | ((fboundp 'x-color-values) | |
220 | (funcall 'x-color-values color)) | |
221 | ((and (fboundp 'color-instance-rgb-components) | |
222 | (ps-color-device)) | |
223 | (funcall 'color-instance-rgb-components | |
224 | (if (color-instance-p x-color) | |
225 | x-color | |
226 | (make-color-instance color)))) | |
227 | (t | |
228 | (error "No available function to determine X color values"))))) | |
229 | ||
230 | ||
231 | (defun ps-face-bold-p (face) | |
232 | (or (ps-xemacs-face-kind-p face 'WEIGHT_NAME "bold\\|demibold") | |
233 | (memq face ps-bold-faces))) ; Kludge-compatible | |
234 | ||
235 | ||
236 | (defun ps-face-italic-p (face) | |
237 | (or (ps-xemacs-face-kind-p face 'ANGLE_NAME "i\\|o") | |
238 | (ps-xemacs-face-kind-p face 'SLANT "i\\|o") | |
239 | (memq face ps-italic-faces))) ; Kludge-compatible | |
240 | ||
241 | ||
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242 | (defalias 'ps-face-strikeout-p 'ignore) |
243 | ||
244 | ||
245 | (defalias 'ps-face-overline-p 'ignore) | |
246 | ||
247 | ||
248 | (defalias 'ps-face-box-p 'ignore) | |
249 | ||
250 | ||
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251 | ;; XEmacs will have to make do with %s (princ) for floats. |
252 | (defvar ps-color-format "%s %s %s") | |
253 | (defvar ps-float-format "%s ") | |
254 | ||
255 | ||
256 | (defun ps-generate-postscript-with-faces1 (from to) | |
257 | ;; Generate some PostScript. | |
258 | (let ((face 'default) | |
259 | (position to) | |
260 | ;; XEmacs | |
261 | ;; Build the list of extents... | |
262 | (a (cons 'dummy nil)) | |
263 | record type extent extent-list) | |
264 | (map-extents 'ps-mapper nil from to a) | |
265 | (setq a (sort (cdr a) 'car-less-than-car) | |
266 | extent-list nil) | |
267 | ||
268 | ;; Loop through the extents... | |
269 | (while a | |
270 | (setq record (car a) | |
271 | position (car record) | |
272 | ||
273 | record (cdr record) | |
274 | type (car record) | |
275 | ||
276 | record (cdr record) | |
277 | extent (car record)) | |
278 | ||
279 | ;; Plot up to this record. | |
280 | ;; XEmacs 19.12: for some reason, we're getting into a | |
281 | ;; situation in which some of the records have | |
282 | ;; positions less than 'from'. Since we've narrowed | |
283 | ;; the buffer, this'll generate errors. This is a hack, | |
284 | ;; but don't call ps-plot-with-face unless from > point-min. | |
285 | (and (>= from (point-min)) | |
286 | (ps-plot-with-face from (min position (point-max)) face)) | |
287 | ||
288 | (cond | |
289 | ((eq type 'push) | |
290 | (and (extent-face extent) | |
291 | (setq extent-list (sort (cons extent extent-list) | |
292 | 'ps-extent-sorter)))) | |
293 | ||
294 | ((eq type 'pull) | |
295 | (setq extent-list (sort (delq extent extent-list) | |
296 | 'ps-extent-sorter)))) | |
297 | ||
298 | (setq face (if extent-list | |
299 | (extent-face (car extent-list)) | |
300 | 'default) | |
301 | from position | |
302 | a (cdr a))) | |
303 | ||
304 | (ps-plot-with-face from to face))) | |
305 | ||
306 | ) | |
9e53076e | 307 | (t ; Emacs |
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308 | ;; Do nothing |
309 | )) ; end cond featurep | |
310 | ||
311 | ||
312 | \f | |
313 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
314 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
315 | ;; Emacs Definitions | |
316 | ||
317 | ||
318 | (cond | |
9e53076e | 319 | ((featurep 'xemacs) ; XEmacs |
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320 | ;; Do nothing |
321 | ) | |
9e53076e | 322 | (t ; Emacs |
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323 | |
324 | ||
325 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
326 | ;; ps-print | |
327 | ||
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328 | |
329 | (defun ps-mark-active-p () | |
330 | mark-active) | |
331 | ||
332 | ||
333 | (defun ps-face-foreground-name (face) | |
334 | (face-foreground face nil t)) | |
335 | ||
336 | ||
337 | (defun ps-face-background-name (face) | |
338 | (face-background face nil t)) | |
339 | ||
340 | ||
9e53076e | 341 | (defalias 'ps-frame-parameter 'frame-parameter) |
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342 | |
343 | ||
344 | ;; Return t if the device (which can be changed during an emacs session) can | |
345 | ;; handle colors. This function is not yet implemented for GNU emacs. | |
346 | (defun ps-color-device () | |
347 | (if (fboundp 'color-values) | |
348 | (funcall 'color-values "Green") | |
349 | t)) | |
350 | ||
351 | ||
352 | (defun ps-color-values (x-color) | |
353 | (cond | |
354 | ((fboundp 'color-values) | |
355 | (funcall 'color-values x-color)) | |
356 | ((fboundp 'x-color-values) | |
357 | (funcall 'x-color-values x-color)) | |
358 | (t | |
359 | (error "No available function to determine X color values")))) | |
360 | ||
361 | ||
362 | (defun ps-face-bold-p (face) | |
363 | (or (face-bold-p face) | |
364 | (memq face ps-bold-faces))) | |
365 | ||
366 | ||
367 | (defun ps-face-italic-p (face) | |
368 | (or (face-italic-p face) | |
369 | (memq face ps-italic-faces))) | |
370 | ||
371 | ||
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372 | (defun ps-face-strikeout-p (face) |
373 | (eq (face-attribute face :strike-through) t)) | |
374 | ||
375 | ||
376 | (defun ps-face-overline-p (face) | |
377 | (eq (face-attribute face :overline) t)) | |
378 | ||
379 | ||
380 | (defun ps-face-box-p (face) | |
381 | (not (memq (face-attribute face :box) '(nil unspecified)))) | |
382 | ||
383 | ||
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384 | ;; Emacs understands the %f format; we'll use it to limit color RGB values |
385 | ;; to three decimals to cut down some on the size of the PostScript output. | |
386 | (defvar ps-color-format "%0.3f %0.3f %0.3f") | |
387 | (defvar ps-float-format "%0.3f ") | |
388 | ||
389 | ||
390 | (defun ps-generate-postscript-with-faces1 (from to) | |
391 | ;; Generate some PostScript. | |
392 | (let ((face 'default) | |
393 | (position to) | |
394 | ;; Emacs | |
395 | (property-change from) | |
396 | (overlay-change from) | |
397 | (save-buffer-invisibility-spec buffer-invisibility-spec) | |
398 | (buffer-invisibility-spec nil) | |
399 | before-string after-string) | |
400 | (while (< from to) | |
401 | (and (< property-change to) ; Don't search for property change | |
402 | ; unless previous search succeeded. | |
403 | (setq property-change (next-property-change from nil to))) | |
404 | (and (< overlay-change to) ; Don't search for overlay change | |
405 | ; unless previous search succeeded. | |
406 | (setq overlay-change (min (next-overlay-change from) | |
407 | to))) | |
408 | (setq position (min property-change overlay-change) | |
409 | before-string nil | |
410 | after-string nil) | |
411 | ;; The code below is not quite correct, | |
412 | ;; because a non-nil overlay invisible property | |
413 | ;; which is inactive according to the current value | |
414 | ;; of buffer-invisibility-spec nonetheless overrides | |
415 | ;; a face text property. | |
416 | (setq face | |
417 | (cond ((let ((prop (get-text-property from 'invisible))) | |
418 | ;; Decide whether this invisible property | |
419 | ;; really makes the text invisible. | |
420 | (if (eq save-buffer-invisibility-spec t) | |
421 | (not (null prop)) | |
422 | (or (memq prop save-buffer-invisibility-spec) | |
423 | (assq prop save-buffer-invisibility-spec)))) | |
424 | 'emacs--invisible--face) | |
425 | ((get-text-property from 'face)) | |
426 | (t 'default))) | |
427 | (let ((overlays (overlays-at from)) | |
428 | (face-priority -1)) ; text-property | |
429 | (while (and overlays | |
430 | (not (eq face 'emacs--invisible--face))) | |
431 | (let* ((overlay (car overlays)) | |
432 | (overlay-invisible | |
433 | (overlay-get overlay 'invisible)) | |
434 | (overlay-priority | |
435 | (or (overlay-get overlay 'priority) 0))) | |
436 | (and (> overlay-priority face-priority) | |
437 | (setq before-string | |
438 | (or (overlay-get overlay 'before-string) | |
439 | before-string) | |
440 | after-string | |
441 | (or (and (<= (overlay-end overlay) position) | |
442 | (overlay-get overlay 'after-string)) | |
443 | after-string) | |
444 | face-priority overlay-priority | |
445 | face | |
446 | (cond | |
447 | ((if (eq save-buffer-invisibility-spec t) | |
448 | (not (null overlay-invisible)) | |
449 | (or (memq overlay-invisible | |
450 | save-buffer-invisibility-spec) | |
451 | (assq overlay-invisible | |
452 | save-buffer-invisibility-spec))) | |
453 | 'emacs--invisible--face) | |
454 | ((overlay-get overlay 'face)) | |
455 | (t face) | |
456 | )))) | |
457 | (setq overlays (cdr overlays)))) | |
458 | ;; Plot up to this record. | |
459 | (and before-string | |
460 | (ps-plot-string before-string)) | |
461 | (ps-plot-with-face from position face) | |
462 | (and after-string | |
463 | (ps-plot-string after-string)) | |
464 | (setq from position)) | |
465 | (ps-plot-with-face from to face))) | |
466 | ||
467 | )) ; end cond featurep | |
468 | ||
469 | \f | |
470 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
471 | ||
472 | (provide 'ps-def) | |
473 | ||
3fb6f73a | 474 | ;; arch-tag: 4edde45b-af10-4685-b8ee-7cd0f951095a |
c97a3f22 | 475 | ;;; ps-def.el ends here |