forked from AuroraMiddleware/gtk
70efa73311
Print when Enter pressed in Name entry or Command Line entry in the print dialog (#564695). Add gtk_printer_option_set_activates_default() function and gtk_printer_option_get_activates_default() function to control behaviour of GtkPrinterOptionWidget.
761 lines
22 KiB
C
761 lines
22 KiB
C
/* GTK - The GIMP Toolkit
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* gtkprintbackendfile.c: Default implementation of GtkPrintBackend
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* for printing to a file
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* Copyright (C) 2003, Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <cairo.h>
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#include <cairo-pdf.h>
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#include <cairo-ps.h>
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#include <cairo-svg.h>
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#include <glib/gi18n-lib.h>
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#include "gtk/gtk.h"
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#include "gtk/gtkprinter-private.h"
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#include "gtkprintbackendfile.h"
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typedef struct _GtkPrintBackendFileClass GtkPrintBackendFileClass;
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#define GTK_PRINT_BACKEND_FILE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_PRINT_BACKEND_FILE, GtkPrintBackendFileClass))
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#define GTK_IS_PRINT_BACKEND_FILE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PRINT_BACKEND_FILE))
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#define GTK_PRINT_BACKEND_FILE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PRINT_BACKEND_FILE, GtkPrintBackendFileClass))
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#define _STREAM_MAX_CHUNK_SIZE 8192
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static GType print_backend_file_type = 0;
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struct _GtkPrintBackendFileClass
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{
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GtkPrintBackendClass parent_class;
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};
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struct _GtkPrintBackendFile
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{
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GtkPrintBackend parent_instance;
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};
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typedef enum
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{
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FORMAT_PDF,
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FORMAT_PS,
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FORMAT_SVG,
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N_FORMATS
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} OutputFormat;
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static const gchar* formats[N_FORMATS] =
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{
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"pdf",
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"ps",
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"svg"
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};
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static GObjectClass *backend_parent_class;
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static void gtk_print_backend_file_class_init (GtkPrintBackendFileClass *class);
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static void gtk_print_backend_file_init (GtkPrintBackendFile *impl);
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static void file_printer_get_settings_from_options (GtkPrinter *printer,
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GtkPrinterOptionSet *options,
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GtkPrintSettings *settings);
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static GtkPrinterOptionSet *file_printer_get_options (GtkPrinter *printer,
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GtkPrintSettings *settings,
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GtkPageSetup *page_setup,
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GtkPrintCapabilities capabilities);
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static void file_printer_prepare_for_print (GtkPrinter *printer,
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GtkPrintJob *print_job,
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GtkPrintSettings *settings,
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GtkPageSetup *page_setup);
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static void gtk_print_backend_file_print_stream (GtkPrintBackend *print_backend,
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GtkPrintJob *job,
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GIOChannel *data_io,
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GtkPrintJobCompleteFunc callback,
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gpointer user_data,
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GDestroyNotify dnotify);
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static cairo_surface_t * file_printer_create_cairo_surface (GtkPrinter *printer,
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GtkPrintSettings *settings,
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gdouble width,
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gdouble height,
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GIOChannel *cache_io);
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static GList * file_printer_list_papers (GtkPrinter *printer);
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static GtkPageSetup * file_printer_get_default_page_size (GtkPrinter *printer);
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static void
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gtk_print_backend_file_register_type (GTypeModule *module)
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{
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static const GTypeInfo print_backend_file_info =
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{
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sizeof (GtkPrintBackendFileClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gtk_print_backend_file_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GtkPrintBackendFile),
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0, /* n_preallocs */
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(GInstanceInitFunc) gtk_print_backend_file_init,
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};
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print_backend_file_type = g_type_module_register_type (module,
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GTK_TYPE_PRINT_BACKEND,
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"GtkPrintBackendFile",
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&print_backend_file_info, 0);
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}
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G_MODULE_EXPORT void
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pb_module_init (GTypeModule *module)
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{
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gtk_print_backend_file_register_type (module);
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}
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G_MODULE_EXPORT void
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pb_module_exit (void)
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{
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}
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G_MODULE_EXPORT GtkPrintBackend *
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pb_module_create (void)
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{
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return gtk_print_backend_file_new ();
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}
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/*
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* GtkPrintBackendFile
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*/
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GType
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gtk_print_backend_file_get_type (void)
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{
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return print_backend_file_type;
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}
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/**
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* gtk_print_backend_file_new:
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*
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* Creates a new #GtkPrintBackendFile object. #GtkPrintBackendFile
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* implements the #GtkPrintBackend interface with direct access to
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* the filesystem using Unix/Linux API calls
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*
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* Return value: the new #GtkPrintBackendFile object
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**/
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GtkPrintBackend *
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gtk_print_backend_file_new (void)
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{
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return g_object_new (GTK_TYPE_PRINT_BACKEND_FILE, NULL);
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}
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static void
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gtk_print_backend_file_class_init (GtkPrintBackendFileClass *class)
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{
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GtkPrintBackendClass *backend_class = GTK_PRINT_BACKEND_CLASS (class);
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backend_parent_class = g_type_class_peek_parent (class);
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backend_class->print_stream = gtk_print_backend_file_print_stream;
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backend_class->printer_create_cairo_surface = file_printer_create_cairo_surface;
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backend_class->printer_get_options = file_printer_get_options;
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backend_class->printer_get_settings_from_options = file_printer_get_settings_from_options;
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backend_class->printer_prepare_for_print = file_printer_prepare_for_print;
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backend_class->printer_list_papers = file_printer_list_papers;
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backend_class->printer_get_default_page_size = file_printer_get_default_page_size;
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}
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/* return N_FORMATS if no explicit format in the settings */
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static OutputFormat
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format_from_settings (GtkPrintSettings *settings)
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{
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const gchar *value;
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gint i;
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if (settings == NULL)
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return N_FORMATS;
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value = gtk_print_settings_get (settings,
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GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT);
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if (value == NULL)
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return N_FORMATS;
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for (i = 0; i < N_FORMATS; ++i)
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if (strcmp (value, formats[i]) == 0)
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break;
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g_assert (i < N_FORMATS);
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return (OutputFormat) i;
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}
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static gchar *
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output_file_from_settings (GtkPrintSettings *settings,
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const gchar *default_format)
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{
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gchar *uri = NULL;
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if (settings)
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uri = g_strdup (gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI));
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if (uri == NULL)
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{
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const gchar *extension;
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gchar *name, *locale_name, *path;
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if (default_format)
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extension = default_format;
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else
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{
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OutputFormat format;
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format = format_from_settings (settings);
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switch (format)
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{
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default:
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case FORMAT_PDF:
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extension = "pdf";
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break;
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case FORMAT_PS:
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extension = "ps";
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break;
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case FORMAT_SVG:
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extension = "svg";
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break;
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}
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}
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/* default filename used for print-to-file */
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name = g_strdup_printf (_("output.%s"), extension);
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locale_name = g_filename_from_utf8 (name, -1, NULL, NULL, NULL);
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g_free (name);
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if (locale_name != NULL)
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{
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gchar *current_dir = g_get_current_dir ();
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path = g_build_filename (current_dir, locale_name, NULL);
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g_free (locale_name);
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uri = g_filename_to_uri (path, NULL, NULL);
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g_free (path);
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g_free (current_dir);
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}
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}
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return uri;
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}
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static cairo_status_t
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_cairo_write (void *closure,
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const unsigned char *data,
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unsigned int length)
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{
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GIOChannel *io = (GIOChannel *)closure;
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gsize written;
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GError *error;
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error = NULL;
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GTK_NOTE (PRINTING,
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g_print ("FILE Backend: Writting %i byte chunk to temp file\n", length));
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while (length > 0)
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{
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g_io_channel_write_chars (io, (const gchar *) data, length, &written, &error);
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if (error != NULL)
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{
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GTK_NOTE (PRINTING,
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g_print ("FILE Backend: Error writting to temp file, %s\n", error->message));
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g_error_free (error);
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return CAIRO_STATUS_WRITE_ERROR;
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}
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GTK_NOTE (PRINTING,
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g_print ("FILE Backend: Wrote %i bytes to temp file\n", written));
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data += written;
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length -= written;
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}
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_surface_t *
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file_printer_create_cairo_surface (GtkPrinter *printer,
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GtkPrintSettings *settings,
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gdouble width,
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gdouble height,
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GIOChannel *cache_io)
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{
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cairo_surface_t *surface;
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OutputFormat format;
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const cairo_svg_version_t *versions;
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int num_versions = 0;
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format = format_from_settings (settings);
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switch (format)
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{
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default:
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case FORMAT_PDF:
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surface = cairo_pdf_surface_create_for_stream (_cairo_write, cache_io, width, height);
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break;
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case FORMAT_PS:
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surface = cairo_ps_surface_create_for_stream (_cairo_write, cache_io, width, height);
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break;
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case FORMAT_SVG:
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surface = cairo_svg_surface_create_for_stream (_cairo_write, cache_io, width, height);
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cairo_svg_get_versions (&versions, &num_versions);
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if (num_versions > 0)
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cairo_svg_surface_restrict_to_version (surface, versions[num_versions - 1]);
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break;
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}
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if (gtk_print_settings_get_printer_lpi (settings) == 0.0)
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gtk_print_settings_set_printer_lpi (settings, 150.0);
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cairo_surface_set_fallback_resolution (surface,
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2.0 * gtk_print_settings_get_printer_lpi (settings),
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2.0 * gtk_print_settings_get_printer_lpi (settings));
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return surface;
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}
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typedef struct {
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GtkPrintBackend *backend;
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GtkPrintJobCompleteFunc callback;
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GtkPrintJob *job;
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GFileOutputStream *target_io_stream;
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gpointer user_data;
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GDestroyNotify dnotify;
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} _PrintStreamData;
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static void
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file_print_cb (GtkPrintBackendFile *print_backend,
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GError *error,
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gpointer user_data)
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{
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_PrintStreamData *ps = (_PrintStreamData *) user_data;
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GDK_THREADS_ENTER ();
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if (ps->target_io_stream != NULL)
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g_output_stream_close (G_OUTPUT_STREAM (ps->target_io_stream), NULL, NULL);
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if (ps->callback)
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ps->callback (ps->job, ps->user_data, error);
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if (ps->dnotify)
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ps->dnotify (ps->user_data);
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gtk_print_job_set_status (ps->job,
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(error != NULL)?GTK_PRINT_STATUS_FINISHED_ABORTED:GTK_PRINT_STATUS_FINISHED);
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if (ps->job)
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g_object_unref (ps->job);
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g_free (ps);
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GDK_THREADS_LEAVE ();
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}
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static gboolean
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file_write (GIOChannel *source,
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GIOCondition con,
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gpointer user_data)
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{
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gchar buf[_STREAM_MAX_CHUNK_SIZE];
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gsize bytes_read;
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GError *error;
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GIOStatus read_status;
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_PrintStreamData *ps = (_PrintStreamData *) user_data;
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error = NULL;
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read_status =
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g_io_channel_read_chars (source,
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buf,
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_STREAM_MAX_CHUNK_SIZE,
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&bytes_read,
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&error);
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if (read_status != G_IO_STATUS_ERROR)
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{
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gsize bytes_written;
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g_output_stream_write_all (G_OUTPUT_STREAM (ps->target_io_stream),
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buf,
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bytes_read,
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&bytes_written,
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NULL,
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&error);
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}
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if (error != NULL || read_status == G_IO_STATUS_EOF)
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{
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file_print_cb (GTK_PRINT_BACKEND_FILE (ps->backend), error, user_data);
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if (error != NULL)
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{
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GTK_NOTE (PRINTING,
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g_print ("FILE Backend: %s\n", error->message));
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g_error_free (error);
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}
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return FALSE;
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}
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GTK_NOTE (PRINTING,
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g_print ("FILE Backend: Writting %i byte chunk to target file\n", bytes_read));
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return TRUE;
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}
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static void
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gtk_print_backend_file_print_stream (GtkPrintBackend *print_backend,
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GtkPrintJob *job,
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GIOChannel *data_io,
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GtkPrintJobCompleteFunc callback,
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gpointer user_data,
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GDestroyNotify dnotify)
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{
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GError *internal_error = NULL;
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GtkPrinter *printer;
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_PrintStreamData *ps;
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GtkPrintSettings *settings;
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gchar *uri;
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GFile *file = NULL;
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printer = gtk_print_job_get_printer (job);
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settings = gtk_print_job_get_settings (job);
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ps = g_new0 (_PrintStreamData, 1);
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ps->callback = callback;
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ps->user_data = user_data;
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ps->dnotify = dnotify;
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ps->job = g_object_ref (job);
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ps->backend = print_backend;
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internal_error = NULL;
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uri = output_file_from_settings (settings, NULL);
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if (uri == NULL)
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goto error;
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file = g_file_new_for_uri (uri);
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ps->target_io_stream = g_file_replace (file, NULL, FALSE, G_FILE_CREATE_NONE, NULL, &internal_error);
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g_object_unref (file);
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g_free (uri);
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error:
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if (internal_error != NULL)
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{
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file_print_cb (GTK_PRINT_BACKEND_FILE (print_backend),
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internal_error, ps);
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g_error_free (internal_error);
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return;
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}
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g_io_add_watch (data_io,
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G_IO_IN | G_IO_PRI | G_IO_ERR | G_IO_HUP,
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(GIOFunc) file_write,
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ps);
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}
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static void
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gtk_print_backend_file_init (GtkPrintBackendFile *backend)
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{
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GtkPrinter *printer;
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printer = g_object_new (GTK_TYPE_PRINTER,
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"name", _("Print to File"),
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"backend", backend,
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"is-virtual", TRUE,
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NULL);
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gtk_printer_set_has_details (printer, TRUE);
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gtk_printer_set_icon_name (printer, "gtk-floppy");
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gtk_printer_set_is_active (printer, TRUE);
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gtk_print_backend_add_printer (GTK_PRINT_BACKEND (backend), printer);
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g_object_unref (printer);
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gtk_print_backend_set_list_done (GTK_PRINT_BACKEND (backend));
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}
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static void
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file_printer_output_file_format_changed (GtkPrinterOption *format_option,
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GtkPrinterOptionSet *set)
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{
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GtkPrinterOption *uri_option;
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gchar *base = NULL;
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if (! format_option->value)
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return;
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uri_option = gtk_printer_option_set_lookup (set,
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"gtk-main-page-custom-input");
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if (uri_option && uri_option->value)
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{
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const gchar *uri = uri_option->value;
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const gchar *dot = strrchr (uri, '.');
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if (dot)
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{
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gint i;
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/* check if the file extension matches one of the known ones */
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for (i = 0; i < N_FORMATS; i++)
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|
if (strcmp (dot + 1, formats[i]) == 0)
|
|
break;
|
|
|
|
if (i < N_FORMATS && strcmp (formats[i], format_option->value))
|
|
{
|
|
/* the file extension is known but doesn't match the
|
|
* selected one, strip it away
|
|
*/
|
|
base = g_strndup (uri, dot - uri);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* there's no file extension */
|
|
base = g_strdup (uri);
|
|
}
|
|
}
|
|
|
|
if (base)
|
|
{
|
|
gchar *tmp = g_strdup_printf ("%s.%s", base, format_option->value);
|
|
|
|
gtk_printer_option_set (uri_option, tmp);
|
|
g_free (tmp);
|
|
g_free (base);
|
|
}
|
|
}
|
|
|
|
static GtkPrinterOptionSet *
|
|
file_printer_get_options (GtkPrinter *printer,
|
|
GtkPrintSettings *settings,
|
|
GtkPageSetup *page_setup,
|
|
GtkPrintCapabilities capabilities)
|
|
{
|
|
GtkPrinterOptionSet *set;
|
|
GtkPrinterOption *option;
|
|
const gchar *n_up[] = {"1", "2", "4", "6", "9", "16" };
|
|
const gchar *pages_per_sheet = NULL;
|
|
const gchar *format_names[N_FORMATS] = { N_("PDF"), N_("Postscript"), N_("SVG") };
|
|
const gchar *supported_formats[N_FORMATS];
|
|
gchar *display_format_names[N_FORMATS];
|
|
gint n_formats = 0;
|
|
OutputFormat format;
|
|
gchar *uri;
|
|
gint current_format = 0;
|
|
|
|
format = format_from_settings (settings);
|
|
|
|
set = gtk_printer_option_set_new ();
|
|
|
|
option = gtk_printer_option_new ("gtk-n-up", _("Pages per _sheet:"), GTK_PRINTER_OPTION_TYPE_PICKONE);
|
|
gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (n_up),
|
|
(char **) n_up, (char **) n_up /* FIXME i18n (localised digits)! */);
|
|
if (settings)
|
|
pages_per_sheet = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_NUMBER_UP);
|
|
if (pages_per_sheet)
|
|
gtk_printer_option_set (option, pages_per_sheet);
|
|
else
|
|
gtk_printer_option_set (option, "1");
|
|
gtk_printer_option_set_add (set, option);
|
|
g_object_unref (option);
|
|
|
|
if (capabilities & (GTK_PRINT_CAPABILITY_GENERATE_PDF | GTK_PRINT_CAPABILITY_GENERATE_PS))
|
|
{
|
|
if (capabilities & GTK_PRINT_CAPABILITY_GENERATE_PDF)
|
|
{
|
|
if (format == FORMAT_PDF || format == N_FORMATS)
|
|
{
|
|
format = FORMAT_PDF;
|
|
current_format = n_formats;
|
|
}
|
|
supported_formats[n_formats] = formats[FORMAT_PDF];
|
|
display_format_names[n_formats] = _(format_names[FORMAT_PDF]);
|
|
n_formats++;
|
|
}
|
|
if (capabilities & GTK_PRINT_CAPABILITY_GENERATE_PS)
|
|
{
|
|
if (format == FORMAT_PS || format == N_FORMATS)
|
|
current_format = n_formats;
|
|
supported_formats[n_formats] = formats[FORMAT_PS];
|
|
display_format_names[n_formats] = _(format_names[FORMAT_PS]);
|
|
n_formats++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch (format)
|
|
{
|
|
default:
|
|
case FORMAT_PDF:
|
|
current_format = FORMAT_PDF;
|
|
break;
|
|
case FORMAT_PS:
|
|
current_format = FORMAT_PS;
|
|
break;
|
|
case FORMAT_SVG:
|
|
current_format = FORMAT_SVG;
|
|
break;
|
|
}
|
|
|
|
for (n_formats = 0; n_formats < N_FORMATS; ++n_formats)
|
|
{
|
|
supported_formats[n_formats] = formats[n_formats];
|
|
display_format_names[n_formats] = _(format_names[n_formats]);
|
|
}
|
|
}
|
|
|
|
uri = output_file_from_settings (settings, supported_formats[current_format]);
|
|
|
|
option = gtk_printer_option_new ("gtk-main-page-custom-input", _("File"),
|
|
GTK_PRINTER_OPTION_TYPE_FILESAVE);
|
|
gtk_printer_option_set_activates_default (option, TRUE);
|
|
gtk_printer_option_set (option, uri);
|
|
g_free (uri);
|
|
option->group = g_strdup ("GtkPrintDialogExtension");
|
|
gtk_printer_option_set_add (set, option);
|
|
|
|
if (n_formats > 1)
|
|
{
|
|
option = gtk_printer_option_new ("output-file-format", _("_Output format"),
|
|
GTK_PRINTER_OPTION_TYPE_ALTERNATIVE);
|
|
option->group = g_strdup ("GtkPrintDialogExtension");
|
|
|
|
gtk_printer_option_choices_from_array (option, n_formats,
|
|
(char **) supported_formats,
|
|
display_format_names);
|
|
gtk_printer_option_set (option, supported_formats[current_format]);
|
|
gtk_printer_option_set_add (set, option);
|
|
|
|
g_signal_connect (option, "changed",
|
|
G_CALLBACK (file_printer_output_file_format_changed),
|
|
set);
|
|
|
|
g_object_unref (option);
|
|
}
|
|
|
|
return set;
|
|
}
|
|
|
|
static void
|
|
file_printer_get_settings_from_options (GtkPrinter *printer,
|
|
GtkPrinterOptionSet *options,
|
|
GtkPrintSettings *settings)
|
|
{
|
|
GtkPrinterOption *option;
|
|
|
|
option = gtk_printer_option_set_lookup (options, "gtk-main-page-custom-input");
|
|
gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_URI, option->value);
|
|
|
|
option = gtk_printer_option_set_lookup (options, "output-file-format");
|
|
if (option)
|
|
gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT, option->value);
|
|
|
|
option = gtk_printer_option_set_lookup (options, "gtk-n-up");
|
|
if (option)
|
|
gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_NUMBER_UP, option->value);
|
|
|
|
option = gtk_printer_option_set_lookup (options, "gtk-n-up-layout");
|
|
if (option)
|
|
gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_NUMBER_UP_LAYOUT, option->value);
|
|
}
|
|
|
|
static void
|
|
file_printer_prepare_for_print (GtkPrinter *printer,
|
|
GtkPrintJob *print_job,
|
|
GtkPrintSettings *settings,
|
|
GtkPageSetup *page_setup)
|
|
{
|
|
gdouble scale;
|
|
|
|
print_job->print_pages = gtk_print_settings_get_print_pages (settings);
|
|
print_job->page_ranges = NULL;
|
|
print_job->num_page_ranges = 0;
|
|
|
|
if (print_job->print_pages == GTK_PRINT_PAGES_RANGES)
|
|
print_job->page_ranges =
|
|
gtk_print_settings_get_page_ranges (settings,
|
|
&print_job->num_page_ranges);
|
|
|
|
print_job->collate = gtk_print_settings_get_collate (settings);
|
|
print_job->reverse = gtk_print_settings_get_reverse (settings);
|
|
print_job->num_copies = gtk_print_settings_get_n_copies (settings);
|
|
print_job->number_up = gtk_print_settings_get_number_up (settings);
|
|
print_job->number_up_layout = gtk_print_settings_get_number_up_layout (settings);
|
|
|
|
scale = gtk_print_settings_get_scale (settings);
|
|
if (scale != 100.0)
|
|
print_job->scale = scale/100.0;
|
|
|
|
print_job->page_set = gtk_print_settings_get_page_set (settings);
|
|
print_job->rotate_to_orientation = TRUE;
|
|
}
|
|
|
|
static GList *
|
|
file_printer_list_papers (GtkPrinter *printer)
|
|
{
|
|
GList *result = NULL;
|
|
GList *papers, *p;
|
|
GtkPageSetup *page_setup;
|
|
|
|
papers = gtk_paper_size_get_paper_sizes (TRUE);
|
|
|
|
for (p = papers; p; p = p->next)
|
|
{
|
|
GtkPaperSize *paper_size = p->data;
|
|
|
|
page_setup = gtk_page_setup_new ();
|
|
gtk_page_setup_set_paper_size (page_setup, paper_size);
|
|
gtk_paper_size_free (paper_size);
|
|
result = g_list_prepend (result, page_setup);
|
|
}
|
|
|
|
g_list_free (papers);
|
|
|
|
return g_list_reverse (result);
|
|
}
|
|
|
|
static GtkPageSetup *
|
|
file_printer_get_default_page_size (GtkPrinter *printer)
|
|
{
|
|
GtkPageSetup *result = NULL;
|
|
|
|
return result;
|
|
}
|