1 /* GTK - The GIMP Toolkit
2 * gtkprintbackendfile.c: Default implementation of GtkPrintBackend
3 * for printing to a file
4 * Copyright (C) 2003, Red Hat, Inc.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
20 */
21
22 #include "config.h"
23
24 #include <unistd.h>
25 #include <sys/types.h>
26 #include <sys/stat.h>
27 #include <fcntl.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #include <errno.h>
32 #include <cairo.h>
33 #include <cairo-pdf.h>
34 #include <cairo-ps.h>
35 #include <cairo-svg.h>
36
37 #include <glib/gi18n-lib.h>
38
39 #include "gtk/gtk.h"
40 #include "gtk/gtkprinter-private.h"
41
42 #include "gtkprintbackendfile.h"
43
44 typedef struct _GtkPrintBackendFileClass GtkPrintBackendFileClass;
45
46 #define GTK_PRINT_BACKEND_FILE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_PRINT_BACKEND_FILE, GtkPrintBackendFileClass))
47 #define GTK_IS_PRINT_BACKEND_FILE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PRINT_BACKEND_FILE))
48 #define GTK_PRINT_BACKEND_FILE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PRINT_BACKEND_FILE, GtkPrintBackendFileClass))
49
50 #define _STREAM_MAX_CHUNK_SIZE 8192
51
52 static GType print_backend_file_type = 0;
53
54 struct _GtkPrintBackendFileClass
55 {
56 GtkPrintBackendClass parent_class;
57 };
58
59 struct _GtkPrintBackendFile
60 {
61 GtkPrintBackend parent_instance;
62 };
63
64 typedef enum
65 {
66 FORMAT_PDF,
67 FORMAT_PS,
68 FORMAT_SVG,
69 N_FORMATS
70 } OutputFormat;
71
72 static const gchar* formats[N_FORMATS] =
73 {
74 "pdf",
75 "ps",
76 "svg"
77 };
78
79 static GObjectClass *backend_parent_class;
80
81 static void gtk_print_backend_file_class_init (GtkPrintBackendFileClass *class);
82 static void gtk_print_backend_file_init (GtkPrintBackendFile *impl);
83 static void file_printer_get_settings_from_options (GtkPrinter *printer,
84 GtkPrinterOptionSet *options,
85 GtkPrintSettings *settings);
86 static GtkPrinterOptionSet *file_printer_get_options (GtkPrinter *printer,
87 GtkPrintSettings *settings,
88 GtkPageSetup *page_setup,
89 GtkPrintCapabilities capabilities);
90 static void file_printer_prepare_for_print (GtkPrinter *printer,
91 GtkPrintJob *print_job,
92 GtkPrintSettings *settings,
93 GtkPageSetup *page_setup);
94 static void gtk_print_backend_file_print_stream (GtkPrintBackend *print_backend,
95 GtkPrintJob *job,
96 GIOChannel *data_io,
97 GtkPrintJobCompleteFunc callback,
98 gpointer user_data,
99 GDestroyNotify dnotify);
100 static cairo_surface_t * file_printer_create_cairo_surface (GtkPrinter *printer,
101 GtkPrintSettings *settings,
102 gdouble width,
103 gdouble height,
104 GIOChannel *cache_io);
105
106 static GList * file_printer_list_papers (GtkPrinter *printer);
107 static GtkPageSetup * file_printer_get_default_page_size (GtkPrinter *printer);
108
109 static void
gtk_print_backend_file_register_type(GTypeModule * module)110 gtk_print_backend_file_register_type (GTypeModule *module)
111 {
112 const GTypeInfo print_backend_file_info =
113 {
114 sizeof (GtkPrintBackendFileClass),
115 NULL, /* base_init */
116 NULL, /* base_finalize */
117 (GClassInitFunc) gtk_print_backend_file_class_init,
118 NULL, /* class_finalize */
119 NULL, /* class_data */
120 sizeof (GtkPrintBackendFile),
121 0, /* n_preallocs */
122 (GInstanceInitFunc) gtk_print_backend_file_init,
123 };
124
125 print_backend_file_type = g_type_module_register_type (module,
126 GTK_TYPE_PRINT_BACKEND,
127 "GtkPrintBackendFile",
128 &print_backend_file_info, 0);
129 }
130
131 G_MODULE_EXPORT void
pb_module_init(GTypeModule * module)132 pb_module_init (GTypeModule *module)
133 {
134 gtk_print_backend_file_register_type (module);
135 }
136
137 G_MODULE_EXPORT void
pb_module_exit(void)138 pb_module_exit (void)
139 {
140
141 }
142
143 G_MODULE_EXPORT GtkPrintBackend *
pb_module_create(void)144 pb_module_create (void)
145 {
146 return gtk_print_backend_file_new ();
147 }
148
149 /*
150 * GtkPrintBackendFile
151 */
152 GType
gtk_print_backend_file_get_type(void)153 gtk_print_backend_file_get_type (void)
154 {
155 return print_backend_file_type;
156 }
157
158 /**
159 * gtk_print_backend_file_new:
160 *
161 * Creates a new #GtkPrintBackendFile object. #GtkPrintBackendFile
162 * implements the #GtkPrintBackend interface with direct access to
163 * the filesystem using Unix/Linux API calls
164 *
165 * Return value: the new #GtkPrintBackendFile object
166 **/
167 GtkPrintBackend *
gtk_print_backend_file_new(void)168 gtk_print_backend_file_new (void)
169 {
170 return g_object_new (GTK_TYPE_PRINT_BACKEND_FILE, NULL);
171 }
172
173 static void
gtk_print_backend_file_class_init(GtkPrintBackendFileClass * class)174 gtk_print_backend_file_class_init (GtkPrintBackendFileClass *class)
175 {
176 GtkPrintBackendClass *backend_class = GTK_PRINT_BACKEND_CLASS (class);
177
178 backend_parent_class = g_type_class_peek_parent (class);
179
180 backend_class->print_stream = gtk_print_backend_file_print_stream;
181 backend_class->printer_create_cairo_surface = file_printer_create_cairo_surface;
182 backend_class->printer_get_options = file_printer_get_options;
183 backend_class->printer_get_settings_from_options = file_printer_get_settings_from_options;
184 backend_class->printer_prepare_for_print = file_printer_prepare_for_print;
185 backend_class->printer_list_papers = file_printer_list_papers;
186 backend_class->printer_get_default_page_size = file_printer_get_default_page_size;
187 }
188
189 /* return N_FORMATS if no explicit format in the settings */
190 static OutputFormat
format_from_settings(GtkPrintSettings * settings)191 format_from_settings (GtkPrintSettings *settings)
192 {
193 const gchar *value;
194 gint i;
195
196 if (settings == NULL)
197 return N_FORMATS;
198
199 value = gtk_print_settings_get (settings,
200 GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT);
201 if (value == NULL)
202 return N_FORMATS;
203
204 for (i = 0; i < N_FORMATS; ++i)
205 if (strcmp (value, formats[i]) == 0)
206 break;
207
208 g_assert (i < N_FORMATS);
209
210 return (OutputFormat) i;
211 }
212
213 static gchar *
output_file_from_settings(GtkPrintSettings * settings,const gchar * default_format)214 output_file_from_settings (GtkPrintSettings *settings,
215 const gchar *default_format)
216 {
217 gchar *uri = NULL;
218
219 if (settings)
220 uri = g_strdup (gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI));
221
222 if (uri == NULL)
223 {
224 const gchar *extension;
225 gchar *name, *locale_name, *path;
226
227 if (default_format)
228 extension = default_format;
229 else
230 {
231 OutputFormat format;
232
233 format = format_from_settings (settings);
234 switch (format)
235 {
236 default:
237 case FORMAT_PDF:
238 extension = "pdf";
239 break;
240 case FORMAT_PS:
241 extension = "ps";
242 break;
243 case FORMAT_SVG:
244 extension = "svg";
245 break;
246 }
247 }
248
249 /* default filename used for print-to-file */
250 name = g_strdup_printf (_("output.%s"), extension);
251 locale_name = g_filename_from_utf8 (name, -1, NULL, NULL, NULL);
252 g_free (name);
253
254 if (locale_name != NULL)
255 {
256 gchar *current_dir = g_get_current_dir ();
257 path = g_build_filename (current_dir, locale_name, NULL);
258 g_free (locale_name);
259
260 uri = g_filename_to_uri (path, NULL, NULL);
261 g_free (path);
262 g_free (current_dir);
263 }
264 }
265
266 return uri;
267 }
268
269 static cairo_status_t
_cairo_write(void * closure,const unsigned char * data,unsigned int length)270 _cairo_write (void *closure,
271 const unsigned char *data,
272 unsigned int length)
273 {
274 GIOChannel *io = (GIOChannel *)closure;
275 gsize written;
276 GError *error;
277
278 error = NULL;
279
280 GTK_NOTE (PRINTING,
281 g_print ("FILE Backend: Writting %i byte chunk to temp file\n", length));
282
283 while (length > 0)
284 {
285 g_io_channel_write_chars (io, (const gchar *) data, length, &written, &error);
286
287 if (error != NULL)
288 {
289 GTK_NOTE (PRINTING,
290 g_print ("FILE Backend: Error writting to temp file, %s\n", error->message));
291
292 g_error_free (error);
293 return CAIRO_STATUS_WRITE_ERROR;
294 }
295
296 GTK_NOTE (PRINTING,
297 g_print ("FILE Backend: Wrote %i bytes to temp file\n", written));
298
299 data += written;
300 length -= written;
301 }
302
303 return CAIRO_STATUS_SUCCESS;
304 }
305
306
307 static cairo_surface_t *
file_printer_create_cairo_surface(GtkPrinter * printer,GtkPrintSettings * settings,gdouble width,gdouble height,GIOChannel * cache_io)308 file_printer_create_cairo_surface (GtkPrinter *printer,
309 GtkPrintSettings *settings,
310 gdouble width,
311 gdouble height,
312 GIOChannel *cache_io)
313 {
314 cairo_surface_t *surface;
315 OutputFormat format;
316 const cairo_svg_version_t *versions;
317 int num_versions = 0;
318
319 format = format_from_settings (settings);
320
321 switch (format)
322 {
323 default:
324 case FORMAT_PDF:
325 surface = cairo_pdf_surface_create_for_stream (_cairo_write, cache_io, width, height);
326 break;
327 case FORMAT_PS:
328 surface = cairo_ps_surface_create_for_stream (_cairo_write, cache_io, width, height);
329 break;
330 case FORMAT_SVG:
331 surface = cairo_svg_surface_create_for_stream (_cairo_write, cache_io, width, height);
332 cairo_svg_get_versions (&versions, &num_versions);
333 if (num_versions > 0)
334 cairo_svg_surface_restrict_to_version (surface, versions[num_versions - 1]);
335 break;
336 }
337
338 cairo_surface_set_fallback_resolution (surface,
339 2.0 * gtk_print_settings_get_printer_lpi (settings),
340 2.0 * gtk_print_settings_get_printer_lpi (settings));
341
342 return surface;
343 }
344
345 typedef struct {
346 GtkPrintBackend *backend;
347 GtkPrintJobCompleteFunc callback;
348 GtkPrintJob *job;
349 GFileOutputStream *target_io_stream;
350 gpointer user_data;
351 GDestroyNotify dnotify;
352 } _PrintStreamData;
353
354 static void
file_print_cb(GtkPrintBackendFile * print_backend,GError * error,gpointer user_data)355 file_print_cb (GtkPrintBackendFile *print_backend,
356 GError *error,
357 gpointer user_data)
358 {
359 _PrintStreamData *ps = (_PrintStreamData *) user_data;
360
361 GDK_THREADS_ENTER ();
362
363 if (ps->target_io_stream != NULL)
364 g_output_stream_close (G_OUTPUT_STREAM (ps->target_io_stream), NULL, NULL);
365
366 if (ps->callback)
367 ps->callback (ps->job, ps->user_data, error);
368
369 if (ps->dnotify)
370 ps->dnotify (ps->user_data);
371
372 gtk_print_job_set_status (ps->job,
373 (error != NULL)?GTK_PRINT_STATUS_FINISHED_ABORTED:GTK_PRINT_STATUS_FINISHED);
374
375 if (ps->job)
376 g_object_unref (ps->job);
377
378 g_free (ps);
379
380 GDK_THREADS_LEAVE ();
381 }
382
383 static gboolean
file_write(GIOChannel * source,GIOCondition con,gpointer user_data)384 file_write (GIOChannel *source,
385 GIOCondition con,
386 gpointer user_data)
387 {
388 gchar buf[_STREAM_MAX_CHUNK_SIZE];
389 gsize bytes_read;
390 GError *error;
391 GIOStatus read_status;
392 _PrintStreamData *ps = (_PrintStreamData *) user_data;
393
394 error = NULL;
395
396 read_status =
397 g_io_channel_read_chars (source,
398 buf,
399 _STREAM_MAX_CHUNK_SIZE,
400 &bytes_read,
401 &error);
402
403 if (read_status != G_IO_STATUS_ERROR)
404 {
405 gsize bytes_written;
406
407 g_output_stream_write_all (G_OUTPUT_STREAM (ps->target_io_stream),
408 buf,
409 bytes_read,
410 &bytes_written,
411 NULL,
412 &error);
413 }
414
415 if (error != NULL || read_status == G_IO_STATUS_EOF)
416 {
417 file_print_cb (GTK_PRINT_BACKEND_FILE (ps->backend), error, user_data);
418
419 if (error != NULL)
420 {
421 GTK_NOTE (PRINTING,
422 g_print ("FILE Backend: %s\n", error->message));
423
424 g_error_free (error);
425 }
426
427 return FALSE;
428 }
429
430 GTK_NOTE (PRINTING,
431 g_print ("FILE Backend: Writting %i byte chunk to target file\n", bytes_read));
432
433 return TRUE;
434 }
435
436 static void
gtk_print_backend_file_print_stream(GtkPrintBackend * print_backend,GtkPrintJob * job,GIOChannel * data_io,GtkPrintJobCompleteFunc callback,gpointer user_data,GDestroyNotify dnotify)437 gtk_print_backend_file_print_stream (GtkPrintBackend *print_backend,
438 GtkPrintJob *job,
439 GIOChannel *data_io,
440 GtkPrintJobCompleteFunc callback,
441 gpointer user_data,
442 GDestroyNotify dnotify)
443 {
444 GError *internal_error = NULL;
445 _PrintStreamData *ps;
446 GtkPrintSettings *settings;
447 gchar *uri;
448 GFile *file = NULL;
449
450 settings = gtk_print_job_get_settings (job);
451
452 ps = g_new0 (_PrintStreamData, 1);
453 ps->callback = callback;
454 ps->user_data = user_data;
455 ps->dnotify = dnotify;
456 ps->job = g_object_ref (job);
457 ps->backend = print_backend;
458
459 internal_error = NULL;
460 uri = output_file_from_settings (settings, NULL);
461
462 if (uri == NULL)
463 goto error;
464
465 file = g_file_new_for_uri (uri);
466 ps->target_io_stream = g_file_replace (file, NULL, FALSE, G_FILE_CREATE_NONE, NULL, &internal_error);
467
468 g_object_unref (file);
469 g_free (uri);
470
471 error:
472 if (internal_error != NULL)
473 {
474 file_print_cb (GTK_PRINT_BACKEND_FILE (print_backend),
475 internal_error, ps);
476
477 g_error_free (internal_error);
478 return;
479 }
480
481 g_io_add_watch (data_io,
482 G_IO_IN | G_IO_PRI | G_IO_ERR | G_IO_HUP,
483 (GIOFunc) file_write,
484 ps);
485 }
486
487 static void
gtk_print_backend_file_init(GtkPrintBackendFile * backend)488 gtk_print_backend_file_init (GtkPrintBackendFile *backend)
489 {
490 GtkPrinter *printer;
491
492 printer = g_object_new (GTK_TYPE_PRINTER,
493 "name", _("Print to File"),
494 "backend", backend,
495 "is-virtual", TRUE,
496 "accepts-pdf", TRUE,
497 NULL);
498
499 gtk_printer_set_has_details (printer, TRUE);
500 gtk_printer_set_icon_name (printer, "gtk-save");
501 gtk_printer_set_is_active (printer, TRUE);
502
503 gtk_print_backend_add_printer (GTK_PRINT_BACKEND (backend), printer);
504 g_object_unref (printer);
505
506 gtk_print_backend_set_list_done (GTK_PRINT_BACKEND (backend));
507 }
508
509 typedef struct {
510 GtkPrinter *printer;
511 GtkPrinterOptionSet *set;
512 } _OutputFormatChangedData;
513
514 static void
set_printer_format_from_option_set(GtkPrinter * printer,GtkPrinterOptionSet * set)515 set_printer_format_from_option_set (GtkPrinter *printer,
516 GtkPrinterOptionSet *set)
517 {
518 GtkPrinterOption *format_option;
519 const gchar *value;
520 gint i;
521
522 format_option = gtk_printer_option_set_lookup (set, "output-file-format");
523 if (format_option && format_option->value)
524 {
525 value = format_option->value;
526 if (value)
527 {
528 for (i = 0; i < N_FORMATS; ++i)
529 if (strcmp (value, formats[i]) == 0)
530 break;
531
532 g_assert (i < N_FORMATS);
533
534 switch (i)
535 {
536 case FORMAT_PDF:
537 gtk_printer_set_accepts_pdf (printer, TRUE);
538 gtk_printer_set_accepts_ps (printer, FALSE);
539 break;
540 case FORMAT_PS:
541 gtk_printer_set_accepts_pdf (printer, FALSE);
542 gtk_printer_set_accepts_ps (printer, TRUE);
543 break;
544 case FORMAT_SVG:
545 default:
546 gtk_printer_set_accepts_pdf (printer, FALSE);
547 gtk_printer_set_accepts_ps (printer, FALSE);
548 break;
549 }
550 }
551 }
552 }
553
554 static void
file_printer_output_file_format_changed(GtkPrinterOption * format_option,gpointer user_data)555 file_printer_output_file_format_changed (GtkPrinterOption *format_option,
556 gpointer user_data)
557 {
558 GtkPrinterOption *uri_option;
559 gchar *base = NULL;
560 _OutputFormatChangedData *data = (_OutputFormatChangedData *) user_data;
561
562 if (! format_option->value)
563 return;
564
565 uri_option = gtk_printer_option_set_lookup (data->set,
566 "gtk-main-page-custom-input");
567
568 if (uri_option && uri_option->value)
569 {
570 const gchar *uri = uri_option->value;
571 const gchar *dot = strrchr (uri, '.');
572
573 if (dot)
574 {
575 gint i;
576
577 /* check if the file extension matches one of the known ones */
578 for (i = 0; i < N_FORMATS; i++)
579 if (strcmp (dot + 1, formats[i]) == 0)
580 break;
581
582 if (i < N_FORMATS && strcmp (formats[i], format_option->value))
583 {
584 /* the file extension is known but doesn't match the
585 * selected one, strip it away
586 */
587 base = g_strndup (uri, dot - uri);
588 }
589 }
590 else
591 {
592 /* there's no file extension */
593 base = g_strdup (uri);
594 }
595 }
596
597 if (base)
598 {
599 gchar *tmp = g_strdup_printf ("%s.%s", base, format_option->value);
600
601 gtk_printer_option_set (uri_option, tmp);
602 g_free (tmp);
603 g_free (base);
604 }
605
606 set_printer_format_from_option_set (data->printer, data->set);
607 }
608
609 static GtkPrinterOptionSet *
file_printer_get_options(GtkPrinter * printer,GtkPrintSettings * settings,GtkPageSetup * page_setup,GtkPrintCapabilities capabilities)610 file_printer_get_options (GtkPrinter *printer,
611 GtkPrintSettings *settings,
612 GtkPageSetup *page_setup,
613 GtkPrintCapabilities capabilities)
614 {
615 GtkPrinterOptionSet *set;
616 GtkPrinterOption *option;
617 const gchar *n_up[] = {"1", "2", "4", "6", "9", "16" };
618 const gchar *pages_per_sheet = NULL;
619 const gchar *format_names[N_FORMATS] = { N_("PDF"), N_("Postscript"), N_("SVG") };
620 const gchar *supported_formats[N_FORMATS];
621 gchar *display_format_names[N_FORMATS];
622 gint n_formats = 0;
623 OutputFormat format;
624 gchar *uri;
625 gint current_format = 0;
626 _OutputFormatChangedData *format_changed_data;
627
628 format = format_from_settings (settings);
629
630 set = gtk_printer_option_set_new ();
631
632 option = gtk_printer_option_new ("gtk-n-up", _("Pages per _sheet:"), GTK_PRINTER_OPTION_TYPE_PICKONE);
633 gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (n_up),
634 (char **) n_up, (char **) n_up /* FIXME i18n (localised digits)! */);
635 if (settings)
636 pages_per_sheet = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_NUMBER_UP);
637 if (pages_per_sheet)
638 gtk_printer_option_set (option, pages_per_sheet);
639 else
640 gtk_printer_option_set (option, "1");
641 gtk_printer_option_set_add (set, option);
642 g_object_unref (option);
643
644 if (capabilities & (GTK_PRINT_CAPABILITY_GENERATE_PDF | GTK_PRINT_CAPABILITY_GENERATE_PS))
645 {
646 if (capabilities & GTK_PRINT_CAPABILITY_GENERATE_PDF)
647 {
648 if (format == FORMAT_PDF || format == N_FORMATS)
649 {
650 format = FORMAT_PDF;
651 current_format = n_formats;
652 }
653 supported_formats[n_formats] = formats[FORMAT_PDF];
654 display_format_names[n_formats] = _(format_names[FORMAT_PDF]);
655 n_formats++;
656 }
657 if (capabilities & GTK_PRINT_CAPABILITY_GENERATE_PS)
658 {
659 if (format == FORMAT_PS || format == N_FORMATS)
660 current_format = n_formats;
661 supported_formats[n_formats] = formats[FORMAT_PS];
662 display_format_names[n_formats] = _(format_names[FORMAT_PS]);
663 n_formats++;
664 }
665 }
666 else
667 {
668 switch (format)
669 {
670 default:
671 case FORMAT_PDF:
672 current_format = FORMAT_PDF;
673 break;
674 case FORMAT_PS:
675 current_format = FORMAT_PS;
676 break;
677 case FORMAT_SVG:
678 current_format = FORMAT_SVG;
679 break;
680 }
681
682 for (n_formats = 0; n_formats < N_FORMATS; ++n_formats)
683 {
684 supported_formats[n_formats] = formats[n_formats];
685 display_format_names[n_formats] = _(format_names[n_formats]);
686 }
687 }
688
689 uri = output_file_from_settings (settings, supported_formats[current_format]);
690
691 option = gtk_printer_option_new ("gtk-main-page-custom-input", _("File"),
692 GTK_PRINTER_OPTION_TYPE_FILESAVE);
693 gtk_printer_option_set_activates_default (option, TRUE);
694 gtk_printer_option_set (option, uri);
695 g_free (uri);
696 option->group = g_strdup ("GtkPrintDialogExtension");
697 gtk_printer_option_set_add (set, option);
698
699 if (n_formats > 1)
700 {
701 option = gtk_printer_option_new ("output-file-format", _("_Output format"),
702 GTK_PRINTER_OPTION_TYPE_ALTERNATIVE);
703 option->group = g_strdup ("GtkPrintDialogExtension");
704
705 gtk_printer_option_choices_from_array (option, n_formats,
706 (char **) supported_formats,
707 display_format_names);
708 gtk_printer_option_set (option, supported_formats[current_format]);
709 gtk_printer_option_set_add (set, option);
710
711 set_printer_format_from_option_set (printer, set);
712 format_changed_data = g_new (_OutputFormatChangedData, 1);
713 format_changed_data->printer = printer;
714 format_changed_data->set = set;
715 g_signal_connect_data (option, "changed",
716 G_CALLBACK (file_printer_output_file_format_changed),
717 format_changed_data, (GClosureNotify)g_free, 0);
718
719 g_object_unref (option);
720 }
721
722 return set;
723 }
724
725 static void
file_printer_get_settings_from_options(GtkPrinter * printer,GtkPrinterOptionSet * options,GtkPrintSettings * settings)726 file_printer_get_settings_from_options (GtkPrinter *printer,
727 GtkPrinterOptionSet *options,
728 GtkPrintSettings *settings)
729 {
730 GtkPrinterOption *option;
731
732 option = gtk_printer_option_set_lookup (options, "gtk-main-page-custom-input");
733 gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_URI, option->value);
734
735 option = gtk_printer_option_set_lookup (options, "output-file-format");
736 if (option)
737 gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT, option->value);
738
739 option = gtk_printer_option_set_lookup (options, "gtk-n-up");
740 if (option)
741 gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_NUMBER_UP, option->value);
742
743 option = gtk_printer_option_set_lookup (options, "gtk-n-up-layout");
744 if (option)
745 gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_NUMBER_UP_LAYOUT, option->value);
746 }
747
748 static void
file_printer_prepare_for_print(GtkPrinter * printer,GtkPrintJob * print_job,GtkPrintSettings * settings,GtkPageSetup * page_setup)749 file_printer_prepare_for_print (GtkPrinter *printer,
750 GtkPrintJob *print_job,
751 GtkPrintSettings *settings,
752 GtkPageSetup *page_setup)
753 {
754 gdouble scale;
755
756 print_job->print_pages = gtk_print_settings_get_print_pages (settings);
757 print_job->page_ranges = NULL;
758 print_job->num_page_ranges = 0;
759
760 if (print_job->print_pages == GTK_PRINT_PAGES_RANGES)
761 print_job->page_ranges =
762 gtk_print_settings_get_page_ranges (settings,
763 &print_job->num_page_ranges);
764
765 print_job->collate = gtk_print_settings_get_collate (settings);
766 print_job->reverse = gtk_print_settings_get_reverse (settings);
767 print_job->num_copies = gtk_print_settings_get_n_copies (settings);
768 print_job->number_up = gtk_print_settings_get_number_up (settings);
769 print_job->number_up_layout = gtk_print_settings_get_number_up_layout (settings);
770
771 scale = gtk_print_settings_get_scale (settings);
772 if (scale != 100.0)
773 print_job->scale = scale/100.0;
774
775 print_job->page_set = gtk_print_settings_get_page_set (settings);
776 print_job->rotate_to_orientation = TRUE;
777 }
778
779 static GList *
file_printer_list_papers(GtkPrinter * printer)780 file_printer_list_papers (GtkPrinter *printer)
781 {
782 GList *result = NULL;
783 GList *papers, *p;
784 GtkPageSetup *page_setup;
785
786 papers = gtk_paper_size_get_paper_sizes (TRUE);
787
788 for (p = papers; p; p = p->next)
789 {
790 GtkPaperSize *paper_size = p->data;
791
792 page_setup = gtk_page_setup_new ();
793 gtk_page_setup_set_paper_size (page_setup, paper_size);
794 gtk_paper_size_free (paper_size);
795 result = g_list_prepend (result, page_setup);
796 }
797
798 g_list_free (papers);
799
800 return g_list_reverse (result);
801 }
802
803 static GtkPageSetup *
file_printer_get_default_page_size(GtkPrinter * printer)804 file_printer_get_default_page_size (GtkPrinter *printer)
805 {
806 GtkPageSetup *result = NULL;
807
808 return result;
809 }
810