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 "gtkprintoperation-private.h"
34 #include "gtkmarshal.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 *filename)
123 const gchar *inptr, *start;
127 g_return_val_if_fail (cmd != NULL, NULL);
128 g_return_val_if_fail (filename != NULL, NULL);
131 final = g_string_new (NULL);
135 while ((inptr = strchr (inptr, '%')) != NULL)
137 g_string_append_len (final, start, inptr - start);
142 g_string_append (final, filename ? filename : "");
146 g_string_append_c (final, '%');
150 g_string_append_c (final, '%');
152 g_string_append_c (final, *inptr);
159 g_string_append (final, start);
163 g_string_free (final, FALSE);
169 gtk_print_operation_unix_initialize (void)
171 static gboolean initialized = FALSE;
176 * GtkSettings:gtk-print-preview-command:
178 * A command to run for displaying the print preview. The command
179 * should contain a %f placeholder, which will get replaced by
180 * the path to the pdf file.
182 * The preview application is responsible for removing the pdf file
187 gtk_settings_install_property (g_param_spec_string ("gtk-print-preview-command",
188 P_("Default command to run when displaying a print preview"),
189 P_("Command to run when displaying a print preview"),
190 GTK_PRINT_PREVIEW_COMMAND,
191 GTK_PARAM_READWRITE));
197 _gtk_print_operation_platform_backend_launch_preview (GtkPrintOperation *op,
198 cairo_surface_t *surface,
200 const gchar *filename)
206 GtkSettings *settings;
207 gchar *quoted_filename;
209 GError *error = NULL;
211 gtk_print_operation_unix_initialize ();
213 cairo_surface_destroy (surface);
215 settings = gtk_settings_get_default ();
216 g_object_get (settings, "gtk-print-preview-command", &preview_cmd, NULL);
218 quoted_filename = g_shell_quote (filename);
219 cmd = shell_command_substitute_file (preview_cmd, quoted_filename);
220 g_shell_parse_argv (cmd, &argc, &argv, &error);
226 screen = gtk_window_get_screen (parent);
228 screen = gdk_screen_get_default ();
230 gdk_spawn_on_screen (screen, NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, &error);
236 edialog = gtk_message_dialog_new (parent,
237 GTK_DIALOG_DESTROY_WITH_PARENT,
240 _("Error launching preview") /* FIXME better text */);
241 gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (edialog),
242 "%s", error->message);
243 gtk_window_set_modal (GTK_WINDOW (edialog), TRUE);
244 g_signal_connect (edialog, "response",
245 G_CALLBACK (gtk_widget_destroy), NULL);
247 gtk_window_present (GTK_WINDOW (edialog));
249 g_error_free (error);
253 g_free (quoted_filename);
254 g_free (preview_cmd);
259 unix_finish_send (GtkPrintJob *job,
263 GtkPrintOperationUnix *op_unix;
265 op_unix = (GtkPrintOperationUnix *) user_data;
270 edialog = gtk_message_dialog_new (op_unix->parent,
271 GTK_DIALOG_DESTROY_WITH_PARENT,
274 _("Error printing") /* FIXME better text */);
275 gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (edialog),
276 "%s", error->message);
277 gtk_window_set_modal (GTK_WINDOW (edialog), TRUE);
278 g_signal_connect (edialog, "response",
279 G_CALLBACK (gtk_widget_destroy), NULL);
281 gtk_window_present (GTK_WINDOW (edialog));
284 op_unix->data_sent = TRUE;
287 g_main_loop_quit (op_unix->loop);
291 unix_end_run (GtkPrintOperation *op,
295 GtkPrintOperationUnix *op_unix = op->priv->platform_data;
297 cairo_surface_finish (op_unix->surface);
303 op_unix->loop = g_main_loop_new (NULL, FALSE);
305 /* TODO: Check for error */
306 if (op_unix->job != NULL)
307 gtk_print_job_send (op_unix->job,
314 if (!op_unix->data_sent)
316 GDK_THREADS_LEAVE ();
317 g_main_loop_run (op_unix->loop);
318 GDK_THREADS_ENTER ();
320 g_main_loop_unref (op_unix->loop);
321 op_unix->loop = NULL;
327 job_status_changed_cb (GtkPrintJob *job,
328 GtkPrintOperation *op)
330 _gtk_print_operation_set_status (op, gtk_print_job_get_status (job), NULL);
335 get_print_dialog (GtkPrintOperation *op,
338 GtkPrintOperationPrivate *priv = op->priv;
339 GtkWidget *pd, *label;
340 GtkPageSetup *page_setup;
341 const gchar *custom_tab_label;
343 pd = gtk_print_unix_dialog_new (NULL, parent);
345 gtk_print_unix_dialog_set_manual_capabilities (GTK_PRINT_UNIX_DIALOG (pd),
346 GTK_PRINT_CAPABILITY_PAGE_SET |
347 GTK_PRINT_CAPABILITY_COPIES |
348 GTK_PRINT_CAPABILITY_COLLATE |
349 GTK_PRINT_CAPABILITY_REVERSE |
350 GTK_PRINT_CAPABILITY_SCALE |
351 GTK_PRINT_CAPABILITY_PREVIEW);
353 if (priv->print_settings)
354 gtk_print_unix_dialog_set_settings (GTK_PRINT_UNIX_DIALOG (pd),
355 priv->print_settings);
356 if (priv->default_page_setup)
357 page_setup = gtk_page_setup_copy (priv->default_page_setup);
359 page_setup = gtk_page_setup_new ();
361 gtk_print_unix_dialog_set_page_setup (GTK_PRINT_UNIX_DIALOG (pd),
363 g_object_unref (page_setup);
365 g_signal_emit_by_name (op, "create-custom-widget",
366 &priv->custom_widget);
368 if (priv->custom_widget)
370 custom_tab_label = priv->custom_tab_label;
372 if (custom_tab_label == NULL)
374 custom_tab_label = g_get_application_name ();
375 if (custom_tab_label == NULL)
376 custom_tab_label = _("Application");
379 label = gtk_label_new (custom_tab_label);
381 gtk_print_unix_dialog_add_custom_tab (GTK_PRINT_UNIX_DIALOG (pd),
382 priv->custom_widget, label);
390 GtkPrintOperation *op;
393 GtkPrintOperationResult result;
394 GtkPrintOperationPrintFunc print_cb;
395 GDestroyNotify destroy;
401 print_response_data_free (gpointer data)
403 PrintResponseData *rdata = data;
405 g_object_unref (rdata->op);
410 finish_print (PrintResponseData *rdata,
412 GtkPageSetup *page_setup,
413 GtkPrintSettings *settings)
415 GtkPrintOperation *op = rdata->op;
416 GtkPrintOperationPrivate *priv = op->priv;
421 gtk_print_operation_set_print_settings (op, settings);
422 priv->print_context = _gtk_print_context_new (op);
423 _gtk_print_context_set_page_setup (priv->print_context, page_setup);
425 if (!rdata->do_preview)
427 GtkPrintOperationUnix *op_unix;
430 op_unix = g_new0 (GtkPrintOperationUnix, 1);
431 priv->platform_data = op_unix;
432 priv->free_platform_data = (GDestroyNotify) op_unix_free;
433 op_unix->parent = rdata->parent;
435 priv->start_page = unix_start_page;
436 priv->end_page = unix_end_page;
437 priv->end_run = unix_end_run;
439 job = gtk_print_job_new (priv->job_name, printer, settings, page_setup);
441 gtk_print_job_set_track_print_status (job, priv->track_print_status);
443 op_unix->surface = gtk_print_job_get_surface (job, &priv->error);
444 if (op_unix->surface == NULL)
446 rdata->result = GTK_PRINT_OPERATION_RESULT_ERROR;
447 rdata->do_print = FALSE;
451 cr = cairo_create (op_unix->surface);
452 gtk_print_context_set_cairo_context (priv->print_context, cr, 72, 72);
455 _gtk_print_operation_set_status (op, gtk_print_job_get_status (job), NULL);
457 op_unix->job_status_changed_tag =
458 g_signal_connect (job, "status-changed",
459 G_CALLBACK (job_status_changed_cb), op);
461 priv->print_pages = job->print_pages;
462 priv->page_ranges = job->page_ranges;
463 priv->num_page_ranges = job->num_page_ranges;
465 priv->manual_num_copies = job->num_copies;
466 priv->manual_collation = job->collate;
467 priv->manual_reverse = job->reverse;
468 priv->manual_page_set = job->page_set;
469 priv->manual_scale = job->scale;
470 priv->manual_orientation = job->rotate_to_orientation;
475 rdata->print_cb (op, rdata->parent, rdata->do_print, rdata->result);
478 rdata->destroy (rdata);
482 handle_print_response (GtkWidget *dialog,
486 GtkPrintUnixDialog *pd = GTK_PRINT_UNIX_DIALOG (dialog);
487 PrintResponseData *rdata = data;
488 GtkPrintSettings *settings = NULL;
489 GtkPageSetup *page_setup = NULL;
490 GtkPrinter *printer = NULL;
492 if (response == GTK_RESPONSE_OK)
494 printer = gtk_print_unix_dialog_get_selected_printer (GTK_PRINT_UNIX_DIALOG (pd));
496 rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
497 rdata->do_preview = FALSE;
499 rdata->do_print = TRUE;
501 else if (response == GTK_RESPONSE_APPLY)
504 rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
505 rdata->do_preview = TRUE;
506 rdata->do_print = TRUE;
508 rdata->op->priv->action = GTK_PRINT_OPERATION_ACTION_PREVIEW;
513 settings = gtk_print_unix_dialog_get_settings (GTK_PRINT_UNIX_DIALOG (pd));
514 page_setup = gtk_print_unix_dialog_get_page_setup (GTK_PRINT_UNIX_DIALOG (pd));
516 g_signal_emit_by_name (rdata->op, "custom-widget-apply", rdata->op->priv->custom_widget);
519 finish_print (rdata, printer, page_setup, settings);
522 g_object_unref (settings);
524 gtk_widget_destroy (GTK_WIDGET (pd));
530 found_printer (GtkPrinter *printer,
531 PrintResponseData *rdata)
533 GtkPrintOperation *op = rdata->op;
534 GtkPrintOperationPrivate *priv = op->priv;
535 GtkPrintSettings *settings = NULL;
536 GtkPageSetup *page_setup = NULL;
539 g_main_loop_quit (rdata->loop);
543 rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
545 rdata->do_print = TRUE;
547 if (priv->print_settings)
548 settings = gtk_print_settings_copy (priv->print_settings);
550 settings = gtk_print_settings_new ();
552 gtk_print_settings_set_printer (settings,
553 gtk_printer_get_name (printer));
555 if (priv->default_page_setup)
556 page_setup = gtk_page_setup_copy (priv->default_page_setup);
558 page_setup = gtk_page_setup_new ();
561 finish_print (rdata, printer, page_setup, settings);
564 g_object_unref (settings);
567 g_object_unref (page_setup);
571 _gtk_print_operation_platform_backend_run_dialog_async (GtkPrintOperation *op,
572 gboolean show_dialog,
574 GtkPrintOperationPrintFunc print_cb)
577 PrintResponseData *rdata;
578 const gchar *printer_name;
580 rdata = g_new (PrintResponseData, 1);
581 rdata->op = g_object_ref (op);
582 rdata->do_print = FALSE;
583 rdata->result = GTK_PRINT_OPERATION_RESULT_CANCEL;
584 rdata->print_cb = print_cb;
585 rdata->parent = parent;
587 rdata->destroy = print_response_data_free;
591 pd = get_print_dialog (op, parent);
592 gtk_window_set_modal (GTK_WINDOW (pd), TRUE);
594 g_signal_connect (pd, "response",
595 G_CALLBACK (handle_print_response), rdata);
597 gtk_window_present (GTK_WINDOW (pd));
602 if (op->priv->print_settings)
603 printer_name = gtk_print_settings_get_printer (op->priv->print_settings);
605 find_printer (printer_name, (GFunc) found_printer, rdata);
609 static cairo_status_t
610 write_preview (void *closure,
611 const unsigned char *data,
614 gint fd = GPOINTER_TO_INT (closure);
619 written = write (fd, data, length);
623 if (errno == EAGAIN || errno == EINTR)
626 return CAIRO_STATUS_WRITE_ERROR;
633 return CAIRO_STATUS_SUCCESS;
637 close_preview (void *data)
639 gint fd = GPOINTER_TO_INT (data);
645 _gtk_print_operation_platform_backend_create_preview_surface (GtkPrintOperation *op,
646 GtkPageSetup *page_setup,
653 GtkPaperSize *paper_size;
655 cairo_surface_t *surface;
656 static cairo_user_data_key_t key;
658 filename = g_build_filename (g_get_tmp_dir (), "previewXXXXXX.pdf", NULL);
659 fd = g_mkstemp (filename);
662 g_print ("target is %s\n", filename);
664 paper_size = gtk_page_setup_get_paper_size (page_setup);
665 w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
666 h = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
668 *dpi_x = *dpi_y = 72;
669 surface = cairo_pdf_surface_create_for_stream (write_preview, GINT_TO_POINTER(fd), w, h);
671 cairo_surface_set_user_data (surface, &key, GINT_TO_POINTER (fd), close_preview);
677 _gtk_print_operation_platform_backend_preview_start_page (GtkPrintOperation *op,
678 cairo_surface_t *surface,
684 _gtk_print_operation_platform_backend_preview_end_page (GtkPrintOperation *op,
685 cairo_surface_t *surface,
688 cairo_show_page (cr);
692 _gtk_print_operation_platform_backend_resize_preview_surface (GtkPrintOperation *op,
693 GtkPageSetup *page_setup,
694 cairo_surface_t *surface)
696 GtkPaperSize *paper_size;
699 paper_size = gtk_page_setup_get_paper_size (page_setup);
700 w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
701 h = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
702 cairo_pdf_surface_set_size (surface, w, h);
706 GtkPrintOperationResult
707 _gtk_print_operation_platform_backend_run_dialog (GtkPrintOperation *op,
708 gboolean show_dialog,
713 PrintResponseData rdata;
715 const gchar *printer_name;
718 rdata.do_print = FALSE;
719 rdata.result = GTK_PRINT_OPERATION_RESULT_CANCEL;
720 rdata.print_cb = NULL;
721 rdata.destroy = NULL;
722 rdata.parent = parent;
727 pd = get_print_dialog (op, parent);
729 response = gtk_dialog_run (GTK_DIALOG (pd));
730 handle_print_response (pd, response, &rdata);
735 if (op->priv->print_settings)
736 printer_name = gtk_print_settings_get_printer (op->priv->print_settings);
738 rdata.loop = g_main_loop_new (NULL, FALSE);
739 find_printer (printer_name,
740 (GFunc) found_printer, &rdata);
742 GDK_THREADS_LEAVE ();
743 g_main_loop_run (rdata.loop);
744 GDK_THREADS_ENTER ();
746 g_main_loop_unref (rdata.loop);
750 *do_print = rdata.do_print;
758 GtkPageSetup *page_setup;
759 GtkPageSetupDoneFunc done_cb;
761 GDestroyNotify destroy;
762 } PageSetupResponseData;
765 page_setup_data_free (gpointer data)
767 PageSetupResponseData *rdata = data;
769 if (rdata->page_setup)
770 g_object_unref (rdata->page_setup);
776 handle_page_setup_response (GtkWidget *dialog,
780 GtkPageSetupUnixDialog *psd;
781 PageSetupResponseData *rdata = data;
783 psd = GTK_PAGE_SETUP_UNIX_DIALOG (dialog);
784 if (response == GTK_RESPONSE_OK)
785 rdata->page_setup = gtk_page_setup_unix_dialog_get_page_setup (psd);
787 gtk_widget_destroy (dialog);
790 rdata->done_cb (rdata->page_setup, rdata->data);
793 rdata->destroy (rdata);
797 get_page_setup_dialog (GtkWindow *parent,
798 GtkPageSetup *page_setup,
799 GtkPrintSettings *settings)
803 dialog = gtk_page_setup_unix_dialog_new (NULL, parent);
805 gtk_page_setup_unix_dialog_set_page_setup (GTK_PAGE_SETUP_UNIX_DIALOG (dialog),
807 gtk_page_setup_unix_dialog_set_print_settings (GTK_PAGE_SETUP_UNIX_DIALOG (dialog),
814 * gtk_print_run_page_setup_dialog:
815 * @parent: transient parent, or %NULL
816 * @page_setup: an existing #GtkPageSetup, or %NULL
817 * @settings: a #GtkPrintSettings
819 * Runs a page setup dialog, letting the user modify the values from
820 * @page_setup. If the user cancels the dialog, the returned #GtkPageSetup
821 * is identical to the passed in @page_setup, otherwise it contains the
822 * modifications done in the dialog.
824 * Note that this function may use a recursive mainloop to show the page
825 * setup dialog. See gtk_print_run_page_setup_dialog_async() if this is
828 * Return value: a new #GtkPageSetup
833 gtk_print_run_page_setup_dialog (GtkWindow *parent,
834 GtkPageSetup *page_setup,
835 GtkPrintSettings *settings)
839 PageSetupResponseData rdata;
841 rdata.page_setup = NULL;
842 rdata.done_cb = NULL;
844 rdata.destroy = NULL;
846 dialog = get_page_setup_dialog (parent, page_setup, settings);
847 response = gtk_dialog_run (GTK_DIALOG (dialog));
848 handle_page_setup_response (dialog, response, &rdata);
850 if (rdata.page_setup)
851 return rdata.page_setup;
853 return gtk_page_setup_copy (page_setup);
855 return gtk_page_setup_new ();
859 * gtk_print_run_page_setup_dialog_async:
860 * @parent: transient parent, or %NULL
861 * @page_setup: an existing #GtkPageSetup, or %NULL
862 * @settings: a #GtkPrintSettings
863 * @done_cb: a function to call when the user saves the modified page setup
864 * @data: user data to pass to @done_cb
866 * Runs a page setup dialog, letting the user modify the values from @page_setup.
868 * In contrast to gtk_print_run_page_setup_dialog(), this function returns after
869 * showing the page setup dialog on platforms that support this, and calls @done_cb
870 * from a signal handler for the ::response signal of the dialog.
875 gtk_print_run_page_setup_dialog_async (GtkWindow *parent,
876 GtkPageSetup *page_setup,
877 GtkPrintSettings *settings,
878 GtkPageSetupDoneFunc done_cb,
882 PageSetupResponseData *rdata;
884 dialog = get_page_setup_dialog (parent, page_setup, settings);
885 gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
887 rdata = g_new (PageSetupResponseData, 1);
888 rdata->page_setup = NULL;
889 rdata->done_cb = done_cb;
891 rdata->destroy = page_setup_data_free;
893 g_signal_connect (dialog, "response",
894 G_CALLBACK (handle_page_setup_response), rdata);
896 gtk_window_present (GTK_WINDOW (dialog));
899 struct _PrinterFinder
901 gboolean found_printer;
908 GtkPrinter *default_printer;
909 GtkPrinter *first_printer;
913 find_printer_idle (gpointer data)
915 PrinterFinder *finder = data;
918 if (finder->printer != NULL)
919 printer = finder->printer;
920 else if (finder->default_printer != NULL)
921 printer = finder->default_printer;
922 else if (finder->first_printer != NULL)
923 printer = finder->first_printer;
927 finder->func (printer, finder->data);
929 printer_finder_free (finder);
935 printer_added_cb (GtkPrintBackend *backend,
937 PrinterFinder *finder)
939 if (finder->found_printer)
942 /* FIXME this skips "Print to PDF" - is this intentional ? */
943 if (gtk_printer_is_virtual (printer))
946 if (finder->printer_name != NULL &&
947 strcmp (gtk_printer_get_name (printer), finder->printer_name) == 0)
949 finder->printer = g_object_ref (printer);
950 finder->found_printer = TRUE;
952 else if (finder->default_printer == NULL &&
953 gtk_printer_is_default (printer))
955 finder->default_printer = g_object_ref (printer);
956 if (finder->printer_name == NULL)
957 finder->found_printer = TRUE;
960 if (finder->first_printer == NULL)
961 finder->first_printer = g_object_ref (printer);
963 if (finder->found_printer)
964 g_idle_add (find_printer_idle, finder);
968 printer_list_done_cb (GtkPrintBackend *backend,
969 PrinterFinder *finder)
971 finder->backends = g_list_remove (finder->backends, backend);
973 g_signal_handlers_disconnect_by_func (backend, printer_added_cb, finder);
974 g_signal_handlers_disconnect_by_func (backend, printer_list_done_cb, finder);
976 gtk_print_backend_destroy (backend);
977 g_object_unref (backend);
979 if (finder->backends == NULL && !finder->found_printer)
980 g_idle_add (find_printer_idle, finder);
984 find_printer_init (PrinterFinder *finder,
985 GtkPrintBackend *backend)
990 list = gtk_print_backend_get_printer_list (backend);
995 printer_added_cb (backend, node->data, finder);
998 if (finder->found_printer)
1004 if (gtk_print_backend_printer_list_is_done (backend))
1006 finder->backends = g_list_remove (finder->backends, backend);
1007 gtk_print_backend_destroy (backend);
1008 g_object_unref (backend);
1012 g_signal_connect (backend, "printer-added",
1013 (GCallback) printer_added_cb,
1015 g_signal_connect (backend, "printer-list-done",
1016 (GCallback) printer_list_done_cb,
1023 printer_finder_free (PrinterFinder *finder)
1027 g_free (finder->printer_name);
1029 if (finder->printer)
1030 g_object_unref (finder->printer);
1032 if (finder->default_printer)
1033 g_object_unref (finder->default_printer);
1035 if (finder->first_printer)
1036 g_object_unref (finder->first_printer);
1038 for (l = finder->backends; l != NULL; l = l->next)
1040 GtkPrintBackend *backend = l->data;
1041 g_signal_handlers_disconnect_by_func (backend, printer_added_cb, finder);
1042 g_signal_handlers_disconnect_by_func (backend, printer_list_done_cb, finder);
1043 gtk_print_backend_destroy (backend);
1044 g_object_unref (backend);
1047 g_list_free (finder->backends);
1053 find_printer (const gchar *printer,
1058 PrinterFinder *finder;
1060 finder = g_new0 (PrinterFinder, 1);
1062 finder->printer_name = g_strdup (printer);
1063 finder->func = func;
1064 finder->data = data;
1066 finder->backends = NULL;
1067 if (g_module_supported ())
1068 finder->backends = gtk_print_backend_load_modules ();
1070 for (node = finder->backends; !finder->found_printer && node != NULL; node = next)
1073 find_printer_init (finder, GTK_PRINT_BACKEND (node->data));
1076 if (finder->backends == NULL && !finder->found_printer)
1077 g_idle_add (find_printer_idle, finder);
1080 #define __GTK_PRINT_OPERATION_UNIX_C__
1081 #include "gtkaliasdef.c"