1 /* GTK - The GIMP Toolkit
2 * gtkprintoperation-unix.c: Print Operation Details for Unix
3 * and Unix-like platforms
4 * Copyright (C) 2006, Red Hat, Inc.
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.
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.
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.
26 #include <sys/types.h>
33 #include <glib/gstdio.h>
34 #include "gtkprintoperation-private.h"
35 #include "gtkmessagedialog.h"
37 #include <cairo-pdf.h>
39 #include "gtkprivate.h"
40 #include "gtkprintunixdialog.h"
41 #include "gtkpagesetupunixdialog.h"
42 #include "gtkprintbackend.h"
43 #include "gtkprinter.h"
44 #include "gtkprinter-private.h"
45 #include "gtkprintjob.h"
52 GtkWindow *parent; /* just in case we need to throw error dialogs */
56 /* Real printing (not preview) */
57 GtkPrintJob *job; /* the job we are sending to the printer */
58 cairo_surface_t *surface;
59 gulong job_status_changed_tag;
62 } GtkPrintOperationUnix;
64 typedef struct _PrinterFinder PrinterFinder;
66 static void printer_finder_free (PrinterFinder *finder);
67 static void find_printer (const gchar *printer,
72 unix_start_page (GtkPrintOperation *op,
73 GtkPrintContext *print_context,
74 GtkPageSetup *page_setup)
76 GtkPrintOperationUnix *op_unix;
77 GtkPaperSize *paper_size;
78 cairo_surface_type_t type;
81 op_unix = op->priv->platform_data;
83 paper_size = gtk_page_setup_get_paper_size (page_setup);
85 w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
86 h = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
88 type = cairo_surface_get_type (op_unix->surface);
90 if (type == CAIRO_SURFACE_TYPE_PS)
91 cairo_ps_surface_set_size (op_unix->surface, w, h);
92 else if (type == CAIRO_SURFACE_TYPE_PDF)
93 cairo_pdf_surface_set_size (op_unix->surface, w, h);
97 unix_end_page (GtkPrintOperation *op,
98 GtkPrintContext *print_context)
102 cr = gtk_print_context_get_cairo_context (print_context);
103 cairo_show_page (cr);
107 op_unix_free (GtkPrintOperationUnix *op_unix)
111 g_signal_handler_disconnect (op_unix->job,
112 op_unix->job_status_changed_tag);
113 g_object_unref (op_unix->job);
120 shell_command_substitute_file (const gchar *cmd,
121 const gchar *pdf_filename,
122 const gchar *settings_filename,
123 gboolean *pdf_filename_replaced,
124 gboolean *settings_filename_replaced)
126 const gchar *inptr, *start;
129 g_return_val_if_fail (cmd != NULL, NULL);
130 g_return_val_if_fail (pdf_filename != NULL, NULL);
131 g_return_val_if_fail (settings_filename != NULL, NULL);
133 final = g_string_new (NULL);
135 *pdf_filename_replaced = FALSE;
136 *settings_filename_replaced = FALSE;
139 while ((inptr = strchr (inptr, '%')) != NULL)
141 g_string_append_len (final, start, inptr - start);
146 g_string_append (final, pdf_filename);
147 *pdf_filename_replaced = TRUE;
151 g_string_append (final, settings_filename);
152 *settings_filename_replaced = TRUE;
156 g_string_append_c (final, '%');
160 g_string_append_c (final, '%');
162 g_string_append_c (final, *inptr);
169 g_string_append (final, start);
171 return g_string_free (final, FALSE);
175 _gtk_print_operation_platform_backend_launch_preview (GtkPrintOperation *op,
176 cairo_surface_t *surface,
178 const gchar *filename)
184 GtkSettings *settings;
185 GtkPrintSettings *print_settings;
186 gchar *settings_filename = NULL;
187 gchar *quoted_filename;
188 gchar *quoted_settings_filename;
189 gboolean filename_used = FALSE;
190 gboolean settings_used = FALSE;
192 GError *error = NULL;
196 cairo_surface_destroy (surface);
199 screen = gtk_window_get_screen (parent);
201 screen = gdk_screen_get_default ();
203 fd = g_file_open_tmp ("settingsXXXXXX.ini", &settings_filename, &error);
207 print_settings = gtk_print_operation_get_print_settings (op);
208 retval = gtk_print_settings_to_file (print_settings, settings_filename, &error);
214 settings = gtk_settings_get_for_screen (screen);
215 g_object_get (settings, "gtk-print-preview-command", &preview_cmd, NULL);
217 quoted_filename = g_shell_quote (filename);
218 quoted_settings_filename = g_shell_quote (settings_filename);
219 cmd = shell_command_substitute_file (preview_cmd, quoted_filename, quoted_settings_filename, &filename_used, &settings_used);
220 g_shell_parse_argv (cmd, &argc, &argv, &error);
222 g_free (preview_cmd);
223 g_free (quoted_filename);
224 g_free (quoted_settings_filename);
230 gdk_spawn_on_screen (screen, NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, &error);
238 edialog = gtk_message_dialog_new (parent,
239 GTK_DIALOG_DESTROY_WITH_PARENT,
242 _("Error launching preview") /* FIXME better text */);
243 gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (edialog),
244 "%s", error->message);
245 g_signal_connect (edialog, "response",
246 G_CALLBACK (gtk_widget_destroy), NULL);
248 gtk_window_present (GTK_WINDOW (edialog));
250 g_error_free (error);
252 filename_used = FALSE;
253 settings_used = FALSE;
260 g_unlink (settings_filename);
262 g_free (settings_filename);
266 unix_finish_send (GtkPrintJob *job,
270 GtkPrintOperation *op = (GtkPrintOperation *) user_data;
271 GtkPrintOperationUnix *op_unix = op->priv->platform_data;
276 edialog = gtk_message_dialog_new (op_unix->parent,
277 GTK_DIALOG_DESTROY_WITH_PARENT,
280 _("Error printing") /* FIXME better text */);
281 gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (edialog),
282 "%s", error->message);
283 gtk_window_set_modal (GTK_WINDOW (edialog), TRUE);
284 g_signal_connect (edialog, "response",
285 G_CALLBACK (gtk_widget_destroy), NULL);
287 gtk_window_present (GTK_WINDOW (edialog));
290 op_unix->data_sent = TRUE;
293 g_main_loop_quit (op_unix->loop);
299 unix_end_run (GtkPrintOperation *op,
303 GtkPrintOperationUnix *op_unix = op->priv->platform_data;
305 cairo_surface_finish (op_unix->surface);
311 op_unix->loop = g_main_loop_new (NULL, FALSE);
313 /* TODO: Check for error */
314 if (op_unix->job != NULL)
317 gtk_print_job_send (op_unix->job,
325 if (!op_unix->data_sent)
327 GDK_THREADS_LEAVE ();
328 g_main_loop_run (op_unix->loop);
329 GDK_THREADS_ENTER ();
331 g_main_loop_unref (op_unix->loop);
332 op_unix->loop = NULL;
338 job_status_changed_cb (GtkPrintJob *job,
339 GtkPrintOperation *op)
341 _gtk_print_operation_set_status (op, gtk_print_job_get_status (job), NULL);
346 get_print_dialog (GtkPrintOperation *op,
349 GtkPrintOperationPrivate *priv = op->priv;
350 GtkWidget *pd, *label;
351 const gchar *custom_tab_label;
353 pd = gtk_print_unix_dialog_new (NULL, parent);
355 gtk_print_unix_dialog_set_manual_capabilities (GTK_PRINT_UNIX_DIALOG (pd),
356 GTK_PRINT_CAPABILITY_PAGE_SET |
357 GTK_PRINT_CAPABILITY_COPIES |
358 GTK_PRINT_CAPABILITY_COLLATE |
359 GTK_PRINT_CAPABILITY_REVERSE |
360 GTK_PRINT_CAPABILITY_SCALE |
361 GTK_PRINT_CAPABILITY_PREVIEW);
363 if (priv->print_settings)
364 gtk_print_unix_dialog_set_settings (GTK_PRINT_UNIX_DIALOG (pd),
365 priv->print_settings);
366 if (priv->default_page_setup)
367 gtk_print_unix_dialog_set_page_setup (GTK_PRINT_UNIX_DIALOG (pd),
368 priv->default_page_setup);
370 gtk_print_unix_dialog_set_current_page (GTK_PRINT_UNIX_DIALOG (pd),
373 g_signal_emit_by_name (op, "create-custom-widget",
374 &priv->custom_widget);
376 if (priv->custom_widget)
378 custom_tab_label = priv->custom_tab_label;
380 if (custom_tab_label == NULL)
382 custom_tab_label = g_get_application_name ();
383 if (custom_tab_label == NULL)
384 custom_tab_label = _("Application");
387 label = gtk_label_new (custom_tab_label);
389 gtk_print_unix_dialog_add_custom_tab (GTK_PRINT_UNIX_DIALOG (pd),
390 priv->custom_widget, label);
398 GtkPrintOperation *op;
401 GtkPrintOperationResult result;
402 GtkPrintOperationPrintFunc print_cb;
403 GDestroyNotify destroy;
409 print_response_data_free (gpointer data)
411 PrintResponseData *rdata = data;
413 g_object_unref (rdata->op);
418 finish_print (PrintResponseData *rdata,
420 GtkPageSetup *page_setup,
421 GtkPrintSettings *settings)
423 GtkPrintOperation *op = rdata->op;
424 GtkPrintOperationPrivate *priv = op->priv;
429 gtk_print_operation_set_print_settings (op, settings);
430 priv->print_context = _gtk_print_context_new (op);
432 if ( (page_setup != NULL) && (gtk_print_operation_get_default_page_setup (op) == NULL))
433 gtk_print_operation_set_default_page_setup (op, page_setup);
435 _gtk_print_context_set_page_setup (priv->print_context, page_setup);
437 if (!rdata->do_preview)
439 GtkPrintOperationUnix *op_unix;
442 op_unix = g_new0 (GtkPrintOperationUnix, 1);
443 priv->platform_data = op_unix;
444 priv->free_platform_data = (GDestroyNotify) op_unix_free;
445 op_unix->parent = rdata->parent;
447 priv->start_page = unix_start_page;
448 priv->end_page = unix_end_page;
449 priv->end_run = unix_end_run;
451 job = gtk_print_job_new (priv->job_name, printer, settings, page_setup);
453 gtk_print_job_set_track_print_status (job, priv->track_print_status);
455 op_unix->surface = gtk_print_job_get_surface (job, &priv->error);
456 if (op_unix->surface == NULL)
458 rdata->result = GTK_PRINT_OPERATION_RESULT_ERROR;
459 rdata->do_print = FALSE;
463 cr = cairo_create (op_unix->surface);
464 gtk_print_context_set_cairo_context (priv->print_context, cr, 72, 72);
467 _gtk_print_operation_set_status (op, gtk_print_job_get_status (job), NULL);
469 op_unix->job_status_changed_tag =
470 g_signal_connect (job, "status-changed",
471 G_CALLBACK (job_status_changed_cb), op);
473 priv->print_pages = job->print_pages;
474 priv->page_ranges = job->page_ranges;
475 priv->num_page_ranges = job->num_page_ranges;
477 priv->manual_num_copies = job->num_copies;
478 priv->manual_collation = job->collate;
479 priv->manual_reverse = job->reverse;
480 priv->manual_page_set = job->page_set;
481 priv->manual_scale = job->scale;
482 priv->manual_orientation = job->rotate_to_orientation;
487 rdata->print_cb (op, rdata->parent, rdata->do_print, rdata->result);
490 rdata->destroy (rdata);
494 handle_print_response (GtkWidget *dialog,
498 GtkPrintUnixDialog *pd = GTK_PRINT_UNIX_DIALOG (dialog);
499 PrintResponseData *rdata = data;
500 GtkPrintSettings *settings = NULL;
501 GtkPageSetup *page_setup = NULL;
502 GtkPrinter *printer = NULL;
504 if (response == GTK_RESPONSE_OK)
506 printer = gtk_print_unix_dialog_get_selected_printer (GTK_PRINT_UNIX_DIALOG (pd));
508 rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
509 rdata->do_preview = FALSE;
511 rdata->do_print = TRUE;
513 else if (response == GTK_RESPONSE_APPLY)
516 rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
517 rdata->do_preview = TRUE;
518 rdata->do_print = TRUE;
520 rdata->op->priv->action = GTK_PRINT_OPERATION_ACTION_PREVIEW;
525 settings = gtk_print_unix_dialog_get_settings (GTK_PRINT_UNIX_DIALOG (pd));
526 page_setup = gtk_print_unix_dialog_get_page_setup (GTK_PRINT_UNIX_DIALOG (pd));
528 g_signal_emit_by_name (rdata->op, "custom-widget-apply", rdata->op->priv->custom_widget);
531 finish_print (rdata, printer, page_setup, settings);
534 g_object_unref (settings);
536 gtk_widget_destroy (GTK_WIDGET (pd));
542 found_printer (GtkPrinter *printer,
543 PrintResponseData *rdata)
545 GtkPrintOperation *op = rdata->op;
546 GtkPrintOperationPrivate *priv = op->priv;
547 GtkPrintSettings *settings = NULL;
548 GtkPageSetup *page_setup = NULL;
551 g_main_loop_quit (rdata->loop);
555 rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
557 rdata->do_print = TRUE;
559 if (priv->print_settings)
560 settings = gtk_print_settings_copy (priv->print_settings);
562 settings = gtk_print_settings_new ();
564 gtk_print_settings_set_printer (settings,
565 gtk_printer_get_name (printer));
567 if (priv->default_page_setup)
568 page_setup = gtk_page_setup_copy (priv->default_page_setup);
570 page_setup = gtk_page_setup_new ();
573 finish_print (rdata, printer, page_setup, settings);
576 g_object_unref (settings);
579 g_object_unref (page_setup);
583 _gtk_print_operation_platform_backend_run_dialog_async (GtkPrintOperation *op,
584 gboolean show_dialog,
586 GtkPrintOperationPrintFunc print_cb)
589 PrintResponseData *rdata;
590 const gchar *printer_name;
592 rdata = g_new (PrintResponseData, 1);
593 rdata->op = g_object_ref (op);
594 rdata->do_print = FALSE;
595 rdata->do_preview = FALSE;
596 rdata->result = GTK_PRINT_OPERATION_RESULT_CANCEL;
597 rdata->print_cb = print_cb;
598 rdata->parent = parent;
600 rdata->destroy = print_response_data_free;
604 pd = get_print_dialog (op, parent);
605 gtk_window_set_modal (GTK_WINDOW (pd), TRUE);
607 g_signal_connect (pd, "response",
608 G_CALLBACK (handle_print_response), rdata);
610 gtk_window_present (GTK_WINDOW (pd));
615 if (op->priv->print_settings)
616 printer_name = gtk_print_settings_get_printer (op->priv->print_settings);
618 find_printer (printer_name, (GFunc) found_printer, rdata);
622 static cairo_status_t
623 write_preview (void *closure,
624 const unsigned char *data,
627 gint fd = GPOINTER_TO_INT (closure);
632 written = write (fd, data, length);
636 if (errno == EAGAIN || errno == EINTR)
639 return CAIRO_STATUS_WRITE_ERROR;
646 return CAIRO_STATUS_SUCCESS;
650 close_preview (void *data)
652 gint fd = GPOINTER_TO_INT (data);
658 _gtk_print_operation_platform_backend_create_preview_surface (GtkPrintOperation *op,
659 GtkPageSetup *page_setup,
666 GtkPaperSize *paper_size;
668 cairo_surface_t *surface;
669 static cairo_user_data_key_t key;
671 filename = g_build_filename (g_get_tmp_dir (), "previewXXXXXX.pdf", NULL);
672 fd = g_mkstemp (filename);
682 paper_size = gtk_page_setup_get_paper_size (page_setup);
683 w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
684 h = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
686 *dpi_x = *dpi_y = 72;
687 surface = cairo_pdf_surface_create_for_stream (write_preview, GINT_TO_POINTER (fd), w, h);
689 cairo_surface_set_user_data (surface, &key, GINT_TO_POINTER (fd), close_preview);
695 _gtk_print_operation_platform_backend_preview_start_page (GtkPrintOperation *op,
696 cairo_surface_t *surface,
702 _gtk_print_operation_platform_backend_preview_end_page (GtkPrintOperation *op,
703 cairo_surface_t *surface,
706 cairo_show_page (cr);
710 _gtk_print_operation_platform_backend_resize_preview_surface (GtkPrintOperation *op,
711 GtkPageSetup *page_setup,
712 cairo_surface_t *surface)
714 GtkPaperSize *paper_size;
717 paper_size = gtk_page_setup_get_paper_size (page_setup);
718 w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
719 h = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
720 cairo_pdf_surface_set_size (surface, w, h);
724 GtkPrintOperationResult
725 _gtk_print_operation_platform_backend_run_dialog (GtkPrintOperation *op,
726 gboolean show_dialog,
731 PrintResponseData rdata;
733 const gchar *printer_name;
736 rdata.do_print = FALSE;
737 rdata.do_preview = FALSE;
738 rdata.result = GTK_PRINT_OPERATION_RESULT_CANCEL;
739 rdata.print_cb = NULL;
740 rdata.destroy = NULL;
741 rdata.parent = parent;
746 pd = get_print_dialog (op, parent);
748 response = gtk_dialog_run (GTK_DIALOG (pd));
749 handle_print_response (pd, response, &rdata);
754 if (op->priv->print_settings)
755 printer_name = gtk_print_settings_get_printer (op->priv->print_settings);
757 rdata.loop = g_main_loop_new (NULL, FALSE);
758 find_printer (printer_name,
759 (GFunc) found_printer, &rdata);
761 GDK_THREADS_LEAVE ();
762 g_main_loop_run (rdata.loop);
763 GDK_THREADS_ENTER ();
765 g_main_loop_unref (rdata.loop);
769 *do_print = rdata.do_print;
777 GtkPageSetup *page_setup;
778 GtkPageSetupDoneFunc done_cb;
780 GDestroyNotify destroy;
781 } PageSetupResponseData;
784 page_setup_data_free (gpointer data)
786 PageSetupResponseData *rdata = data;
788 if (rdata->page_setup)
789 g_object_unref (rdata->page_setup);
795 handle_page_setup_response (GtkWidget *dialog,
799 GtkPageSetupUnixDialog *psd;
800 PageSetupResponseData *rdata = data;
802 psd = GTK_PAGE_SETUP_UNIX_DIALOG (dialog);
803 if (response == GTK_RESPONSE_OK)
804 rdata->page_setup = gtk_page_setup_unix_dialog_get_page_setup (psd);
806 gtk_widget_destroy (dialog);
809 rdata->done_cb (rdata->page_setup, rdata->data);
812 rdata->destroy (rdata);
816 get_page_setup_dialog (GtkWindow *parent,
817 GtkPageSetup *page_setup,
818 GtkPrintSettings *settings)
822 dialog = gtk_page_setup_unix_dialog_new (NULL, parent);
824 gtk_page_setup_unix_dialog_set_page_setup (GTK_PAGE_SETUP_UNIX_DIALOG (dialog),
826 gtk_page_setup_unix_dialog_set_print_settings (GTK_PAGE_SETUP_UNIX_DIALOG (dialog),
833 * gtk_print_run_page_setup_dialog:
834 * @parent: transient parent, or %NULL
835 * @page_setup: an existing #GtkPageSetup, or %NULL
836 * @settings: a #GtkPrintSettings
838 * Runs a page setup dialog, letting the user modify the values from
839 * @page_setup. If the user cancels the dialog, the returned #GtkPageSetup
840 * is identical to the passed in @page_setup, otherwise it contains the
841 * modifications done in the dialog.
843 * Note that this function may use a recursive mainloop to show the page
844 * setup dialog. See gtk_print_run_page_setup_dialog_async() if this is
847 * Return value: a new #GtkPageSetup
852 gtk_print_run_page_setup_dialog (GtkWindow *parent,
853 GtkPageSetup *page_setup,
854 GtkPrintSettings *settings)
858 PageSetupResponseData rdata;
860 rdata.page_setup = NULL;
861 rdata.done_cb = NULL;
863 rdata.destroy = NULL;
865 dialog = get_page_setup_dialog (parent, page_setup, settings);
866 response = gtk_dialog_run (GTK_DIALOG (dialog));
867 handle_page_setup_response (dialog, response, &rdata);
869 if (rdata.page_setup)
870 return rdata.page_setup;
872 return gtk_page_setup_copy (page_setup);
874 return gtk_page_setup_new ();
878 * gtk_print_run_page_setup_dialog_async:
879 * @parent: transient parent, or %NULL
880 * @page_setup: an existing #GtkPageSetup, or %NULL
881 * @settings: a #GtkPrintSettings
882 * @done_cb: a function to call when the user saves the modified page setup
883 * @data: user data to pass to @done_cb
885 * Runs a page setup dialog, letting the user modify the values from @page_setup.
887 * In contrast to gtk_print_run_page_setup_dialog(), this function returns after
888 * showing the page setup dialog on platforms that support this, and calls @done_cb
889 * from a signal handler for the ::response signal of the dialog.
894 gtk_print_run_page_setup_dialog_async (GtkWindow *parent,
895 GtkPageSetup *page_setup,
896 GtkPrintSettings *settings,
897 GtkPageSetupDoneFunc done_cb,
901 PageSetupResponseData *rdata;
903 dialog = get_page_setup_dialog (parent, page_setup, settings);
904 gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
906 rdata = g_new (PageSetupResponseData, 1);
907 rdata->page_setup = NULL;
908 rdata->done_cb = done_cb;
910 rdata->destroy = page_setup_data_free;
912 g_signal_connect (dialog, "response",
913 G_CALLBACK (handle_page_setup_response), rdata);
915 gtk_window_present (GTK_WINDOW (dialog));
918 struct _PrinterFinder
920 gboolean found_printer;
927 GtkPrinter *default_printer;
928 GtkPrinter *first_printer;
932 find_printer_idle (gpointer data)
934 PrinterFinder *finder = data;
937 if (finder->printer != NULL)
938 printer = finder->printer;
939 else if (finder->default_printer != NULL)
940 printer = finder->default_printer;
941 else if (finder->first_printer != NULL)
942 printer = finder->first_printer;
946 finder->func (printer, finder->data);
948 printer_finder_free (finder);
954 printer_added_cb (GtkPrintBackend *backend,
956 PrinterFinder *finder)
958 if (finder->found_printer)
961 /* FIXME this skips "Print to PDF" - is this intentional ? */
962 if (gtk_printer_is_virtual (printer))
965 if (finder->printer_name != NULL &&
966 strcmp (gtk_printer_get_name (printer), finder->printer_name) == 0)
968 finder->printer = g_object_ref (printer);
969 finder->found_printer = TRUE;
971 else if (finder->default_printer == NULL &&
972 gtk_printer_is_default (printer))
974 finder->default_printer = g_object_ref (printer);
975 if (finder->printer_name == NULL)
976 finder->found_printer = TRUE;
979 if (finder->first_printer == NULL)
980 finder->first_printer = g_object_ref (printer);
982 if (finder->found_printer)
983 g_idle_add (find_printer_idle, finder);
987 printer_list_done_cb (GtkPrintBackend *backend,
988 PrinterFinder *finder)
990 finder->backends = g_list_remove (finder->backends, backend);
992 g_signal_handlers_disconnect_by_func (backend, printer_added_cb, finder);
993 g_signal_handlers_disconnect_by_func (backend, printer_list_done_cb, finder);
995 gtk_print_backend_destroy (backend);
996 g_object_unref (backend);
998 if (finder->backends == NULL && !finder->found_printer)
999 g_idle_add (find_printer_idle, finder);
1003 find_printer_init (PrinterFinder *finder,
1004 GtkPrintBackend *backend)
1009 list = gtk_print_backend_get_printer_list (backend);
1012 while (node != NULL)
1014 printer_added_cb (backend, node->data, finder);
1017 if (finder->found_printer)
1023 if (gtk_print_backend_printer_list_is_done (backend))
1025 finder->backends = g_list_remove (finder->backends, backend);
1026 gtk_print_backend_destroy (backend);
1027 g_object_unref (backend);
1031 g_signal_connect (backend, "printer-added",
1032 (GCallback) printer_added_cb,
1034 g_signal_connect (backend, "printer-list-done",
1035 (GCallback) printer_list_done_cb,
1042 printer_finder_free (PrinterFinder *finder)
1046 g_free (finder->printer_name);
1048 if (finder->printer)
1049 g_object_unref (finder->printer);
1051 if (finder->default_printer)
1052 g_object_unref (finder->default_printer);
1054 if (finder->first_printer)
1055 g_object_unref (finder->first_printer);
1057 for (l = finder->backends; l != NULL; l = l->next)
1059 GtkPrintBackend *backend = l->data;
1060 g_signal_handlers_disconnect_by_func (backend, printer_added_cb, finder);
1061 g_signal_handlers_disconnect_by_func (backend, printer_list_done_cb, finder);
1062 gtk_print_backend_destroy (backend);
1063 g_object_unref (backend);
1066 g_list_free (finder->backends);
1072 find_printer (const gchar *printer,
1077 PrinterFinder *finder;
1079 finder = g_new0 (PrinterFinder, 1);
1081 finder->printer_name = g_strdup (printer);
1082 finder->func = func;
1083 finder->data = data;
1085 finder->backends = NULL;
1086 if (g_module_supported ())
1087 finder->backends = gtk_print_backend_load_modules ();
1089 for (node = finder->backends; !finder->found_printer && node != NULL; node = next)
1092 find_printer_init (finder, GTK_PRINT_BACKEND (node->data));
1095 if (finder->backends == NULL && !finder->found_printer)
1096 g_idle_add (find_printer_idle, finder);
1099 #define __GTK_PRINT_OPERATION_UNIX_C__
1100 #include "gtkaliasdef.c"