Show correct print preview

Modify print preview according to settings from print dialog.
Similar approach as during real print is applied to the preview
process (#592582).

1 files changed, 23 insertions, 3 deletions

diff --git a/gtk/gtkprintoperation-unix.c b/gtk/gtkprintoperation-unix.c
index 64b3a38e07..6b5aa15fc5 100644
--- a/gtk/gtkprintoperation-unix.c
+++ b/gtk/gtkprintoperation-unix.c
@@ -207,7 +207,7 @@ _gtk_print_operation_platform_backend_launch_preview (GtkPrintOperation *op,
   gchar *cmd;
   gchar *preview_cmd;
   GtkSettings *settings;
-  GtkPrintSettings *print_settings;
+  GtkPrintSettings *print_settings = NULL;
   GtkPageSetup *page_setup;
   GKeyFile *key_file = NULL;
   gchar *data = NULL;
@@ -235,8 +235,28 @@ _gtk_print_operation_platform_backend_launch_preview (GtkPrintOperation *op,
 
   key_file = g_key_file_new ();
   
-  print_settings = gtk_print_operation_get_print_settings (op);
-  gtk_print_settings_to_key_file (print_settings, key_file, NULL);
+  print_settings = gtk_print_settings_copy (gtk_print_operation_get_print_settings (op));
+
+  if (print_settings != NULL)
+    {
+      gtk_print_settings_set_reverse (print_settings, FALSE);
+      gtk_print_settings_set_page_set (print_settings, GTK_PAGE_SET_ALL);
+      gtk_print_settings_set_scale (print_settings, 1.0);
+      gtk_print_settings_set_number_up (print_settings, 1);
+      gtk_print_settings_set_number_up_layout (print_settings, GTK_NUMBER_UP_LAYOUT_LEFT_TO_RIGHT_TOP_TO_BOTTOM);
+
+      /*  These removals are neccessary because cups-* settings have higher priority
+       *  than normal settings.
+       */
+      gtk_print_settings_unset (print_settings, "cups-reverse");
+      gtk_print_settings_unset (print_settings, "cups-page-set");
+      gtk_print_settings_unset (print_settings, "cups-scale");
+      gtk_print_settings_unset (print_settings, "cups-number-up");
+      gtk_print_settings_unset (print_settings, "cups-number-up-layout");
+
+      gtk_print_settings_to_key_file (print_settings, key_file, NULL);
+      g_object_unref (print_settings);
+    }
 
   page_setup = gtk_print_context_get_page_setup (op->priv->print_context);
   gtk_page_setup_to_key_file (page_setup, key_file, NULL);