gtkprintbackendcups.c

This GTK+ version 2.12.3. GTK+ is a multi-platform toolkit for creating graphical user interfaces.

      /* We only care of conflicts with installed_options and
         PageSize */
      if (!group_has_option (installed_options, other_option) &&
	  (strcmp (other_option->keyword, "PageSize") != 0))
	continue;

      if (*other_choice == 0)
	{
	  /* Conflict only if the installed option is not off */
	  if (value_is_off (other_option->defchoice))
	    continue;
	}
      /* Conflict if the installed option has the specified default */
      else if (strcasecmp (other_choice, other_option->defchoice) != 0)
	continue;

      if (*choice == 0)
	{
	  /* Conflict with all non-off choices */
	  for (j = 0; j < option->num_choices; j++)
	    {
	      if (!value_is_off (option->choices[j].choice))
		conflicts[j] = 1;
	    }
	}
      else
	{
	  for (j = 0; j < option->num_choices; j++)
	    {
	      if (strcasecmp (option->choices[j].choice, choice) == 0)
		conflicts[j] = 1;
	    }
	}
    }

  num_conflicts = 0;
  all_default = TRUE;
  for (j = 0; j < option->num_choices; j++)
    {
      if (conflicts[j])
	num_conflicts++;
      else if (strcmp (option->choices[j].choice, option->defchoice) != 0)
	all_default = FALSE;
    }

  if ((all_default && !keep_if_only_one_option) ||
      (num_conflicts == option->num_choices))
    {
      g_free (conflicts);

      return 0;
    }

  /* Some ppds don't have a "use printer default" option for
   * InputSlot. This means you always have to select a particular slot,
   * and you can't auto-pick source based on the paper size. To support
   * this we always add an auto option if there isn't one already. If
   * the user chooses the generated option we don't send any InputSlot
   * value when printing. The way we detect existing auto-cases is based
   * on feedback from Michael Sweet of cups fame.
   */
  add_auto = 0;
  if (strcmp (option->keyword, "InputSlot") == 0)
    {
      gboolean found_auto = FALSE;
      for (j = 0; j < option->num_choices; j++)
	{
	  if (!conflicts[j])
	    {
	      if (strcmp (option->choices[j].choice, "Auto") == 0 ||
		  strcmp (option->choices[j].choice, "AutoSelect") == 0 ||
		  strcmp (option->choices[j].choice, "Default") == 0 ||
		  strcmp (option->choices[j].choice, "None") == 0 ||
		  strcmp (option->choices[j].choice, "PrinterDefault") == 0 ||
		  strcmp (option->choices[j].choice, "Unspecified") == 0 ||
		  option->choices[j].code == NULL ||
		  option->choices[j].code[0] == 0)
		{
		  found_auto = TRUE;
		  break;
		}
	    }
	}

      if (!found_auto)
	add_auto = 1;
    }
  
  if (available)
    {
      *available = g_new (ppd_choice_t *, option->num_choices - num_conflicts + add_auto);

      i = 0;
      for (j = 0; j < option->num_choices; j++)
	{
	  if (!conflicts[j])
	    (*available)[i++] = &option->choices[j];
	}

      if (add_auto) 
	(*available)[i++] = NULL;
    }

  g_free (conflicts);
  
  return option->num_choices - num_conflicts + add_auto;
}

static GtkPrinterOption *
create_pickone_option (ppd_file_t   *ppd_file,
		       ppd_option_t *ppd_option,
		       const gchar  *gtk_name)
{
  GtkPrinterOption *option;
  ppd_choice_t **available;
  char *label;
  int n_choices;
  int i;
#ifdef HAVE_CUPS_API_1_2
  ppd_coption_t *coption;
#endif

  g_assert (ppd_option->ui == PPD_UI_PICKONE);
  
  option = NULL;

  n_choices = available_choices (ppd_file, ppd_option, &available, g_str_has_prefix (gtk_name, "gtk-"));
  if (n_choices > 0)
    {
      
      /* right now only support one parameter per custom option 
       * if more than one print warning and only offer the default choices
       */

      label = get_option_text (ppd_file, ppd_option);

#ifdef HAVE_CUPS_API_1_2
      coption = ppdFindCustomOption (ppd_file, ppd_option->keyword);

      if (coption)
        {
	  ppd_cparam_t *cparam;

          cparam = ppdFirstCustomParam (coption);

          if (ppdNextCustomParam (coption) == NULL)
	    {
              switch (cparam->type)
	        {
                case PPD_CUSTOM_INT:
		  option = gtk_printer_option_new (gtk_name, label,
				         GTK_PRINTER_OPTION_TYPE_PICKONE_INT);
		  break;
                case PPD_CUSTOM_PASSCODE:
		  option = gtk_printer_option_new (gtk_name, label,
				         GTK_PRINTER_OPTION_TYPE_PICKONE_PASSCODE);
		  break;
                case PPD_CUSTOM_PASSWORD:
		    option = gtk_printer_option_new (gtk_name, label,
				         GTK_PRINTER_OPTION_TYPE_PICKONE_PASSWORD);
		  break;
               case PPD_CUSTOM_REAL:
		    option = gtk_printer_option_new (gtk_name, label,
				         GTK_PRINTER_OPTION_TYPE_PICKONE_REAL);
		  break;
                case PPD_CUSTOM_STRING:
		  option = gtk_printer_option_new (gtk_name, label,
				         GTK_PRINTER_OPTION_TYPE_PICKONE_STRING);
		  break;
#ifdef PRINT_IGNORED_OPTIONS
                case PPD_CUSTOM_POINTS: 
		  g_warning ("CUPS Backend: PPD Custom Points Option not supported");
		  break;
                case PPD_CUSTOM_CURVE:
                  g_warning ("CUPS Backend: PPD Custom Curve Option not supported");
		  break;
                case PPD_CUSTOM_INVCURVE: 	
		  g_warning ("CUPS Backend: PPD Custom Inverse Curve Option not supported");
		  break;
#endif
                default: 
                  break;
		}
	    }
#ifdef PRINT_IGNORED_OPTIONS
	  else
	    g_warning ("CUPS Backend: Multi-parameter PPD Custom Option not supported");
#endif
	}
#endif /* HAVE_CUPS_API_1_2 */

      if (!option)
        option = gtk_printer_option_new (gtk_name, label,
				         GTK_PRINTER_OPTION_TYPE_PICKONE);
      g_free (label);
      
      gtk_printer_option_allocate_choices (option, n_choices);
      for (i = 0; i < n_choices; i++)
	{
	  if (available[i] == NULL)
	    {
	      /* This was auto-added */
	      option->choices[i] = g_strdup ("gtk-ignore-value");
	      option->choices_display[i] = g_strdup (_("Printer Default"));
	    }
	  else
	    {
	      option->choices[i] = g_strdup (available[i]->choice);
	      option->choices_display[i] = get_choice_text (ppd_file, available[i]);
	    }
	}
      gtk_printer_option_set (option, ppd_option->defchoice);
    }
#ifdef PRINT_IGNORED_OPTIONS
  else
    g_warning ("CUPS Backend: Ignoring pickone %s\n", ppd_option->text);
#endif
  g_free (available);

  return option;
}

static GtkPrinterOption *
create_boolean_option (ppd_file_t   *ppd_file,
		       ppd_option_t *ppd_option,
		       const gchar  *gtk_name)
{
  GtkPrinterOption *option;
  ppd_choice_t **available;
  char *label;
  int n_choices;

  g_assert (ppd_option->ui == PPD_UI_BOOLEAN);
  
  option = NULL;

  n_choices = available_choices (ppd_file, ppd_option, &available, g_str_has_prefix (gtk_name, "gtk-"));
  if (n_choices == 2)
    {
      label = get_option_text (ppd_file, ppd_option);
      option = gtk_printer_option_new (gtk_name, label,
				       GTK_PRINTER_OPTION_TYPE_BOOLEAN);
      g_free (label);
      
      gtk_printer_option_allocate_choices (option, 2);
      option->choices[0] = g_strdup ("True");
      option->choices_display[0] = g_strdup ("True");
      option->choices[1] = g_strdup ("False");
      option->choices_display[1] = g_strdup ("False");
      
      gtk_printer_option_set (option, ppd_option->defchoice);
    }
#ifdef PRINT_IGNORED_OPTIONS
  else
    g_warning ("CUPS Backend: Ignoring boolean %s\n", ppd_option->text);
#endif
  g_free (available);

  return option;
}

static gchar *
get_option_name (const gchar *keyword)
{
  int i;

  for (i = 0; i < G_N_ELEMENTS (option_names); i++)
    if (strcmp (option_names[i].ppd_keyword, keyword) == 0)
      return g_strdup (option_names[i].name);

  return g_strdup_printf ("cups-%s", keyword);
}

static int
strptr_cmp (const void *a, 
	    const void *b)
{
  char **aa = (char **)a;
  char **bb = (char **)b;
  return strcmp (*aa, *bb);
}


static gboolean
string_in_table (gchar       *str, 
		 const gchar *table[], 
		 gint         table_len)
{
  return bsearch (&str, table, table_len, sizeof (char *), (void *)strptr_cmp) != NULL;
}

#define STRING_IN_TABLE(_str, _table) (string_in_table (_str, _table, G_N_ELEMENTS (_table)))

static void
handle_option (GtkPrinterOptionSet *set,
	       ppd_file_t          *ppd_file,
	       ppd_option_t        *ppd_option,
	       ppd_group_t         *toplevel_group,
	       GtkPrintSettings    *settings)
{
  GtkPrinterOption *option;
  char *name;

  if (STRING_IN_TABLE (ppd_option->keyword, cups_option_blacklist))
    return;

  name = get_option_name (ppd_option->keyword);

  option = NULL;
  if (ppd_option->ui == PPD_UI_PICKONE)
    {
      option = create_pickone_option (ppd_file, ppd_option, name);
    }
  else if (ppd_option->ui == PPD_UI_BOOLEAN)
    {
      option = create_boolean_option (ppd_file, ppd_option, name);
    }
#ifdef PRINT_IGNORED_OPTIONS
  else
    g_warning ("CUPS Backend: Ignoring pickmany setting %s\n", ppd_option->text);
#endif  
  
  if (option)
    {
      char *name;

      name = ppd_group_name (toplevel_group);
      if (STRING_IN_TABLE (name,
			   color_group_whitelist) ||
	  STRING_IN_TABLE (ppd_option->keyword,
			   color_option_whitelist))
	{
	  option->group = g_strdup ("ColorPage");
	}
      else if (STRING_IN_TABLE (name,
				image_quality_group_whitelist) ||
	       STRING_IN_TABLE (ppd_option->keyword,
				image_quality_option_whitelist))
	{
	  option->group = g_strdup ("ImageQualityPage");
	}
      else if (STRING_IN_TABLE (name,
				finishing_group_whitelist) ||
	       STRING_IN_TABLE (ppd_option->keyword,
				finishing_option_whitelist))
	{
	  option->group = g_strdup ("FinishingPage");
	}
      else
	{
	  option->group = g_strdup (toplevel_group->text);
	}

      set_option_from_settings (option, settings);
      
      gtk_printer_option_set_add (set, option);
    }
  
  g_free (name);
}

static void
handle_group (GtkPrinterOptionSet *set,
	      ppd_file_t          *ppd_file,
	      ppd_group_t         *group,
	      ppd_group_t         *toplevel_group,
	      GtkPrintSettings    *settings)
{
  gint i;
  gchar *name;
  
  /* Ignore installable options */
  name = ppd_group_name (toplevel_group);
  if (strcmp (name, "InstallableOptions") == 0)
    return;
  
  for (i = 0; i < group->num_options; i++)
    handle_option (set, ppd_file, &group->options[i], toplevel_group, settings);

  for (i = 0; i < group->num_subgroups; i++)
    handle_group (set, ppd_file, &group->subgroups[i], toplevel_group, settings);

}

static GtkPrinterOptionSet *
cups_printer_get_options (GtkPrinter           *printer,
			  GtkPrintSettings     *settings,
			  GtkPageSetup         *page_setup,
			  GtkPrintCapabilities  capabilities)
{
  GtkPrinterOptionSet *set;
  GtkPrinterOption *option;
  ppd_file_t *ppd_file;
  int i;
  char *print_at[] = { "now", "at", "on-hold" };
  char *n_up[] = {"1", "2", "4", "6", "9", "16" };
  char *prio[] = {"100", "80", "50", "30" };
  char *prio_display[] = {N_("Urgent"), N_("High"), N_("Medium"), N_("Low") };
  char *cover[] = {"none", "classified", "confidential", "secret", "standard", "topsecret", "unclassified" };
  char *cover_display[] = {N_("None"), N_("Classified"), N_("Confidential"), N_("Secret"), N_("Standard"), N_("Top Secret"), N_("Unclassified"),};


  set = gtk_printer_option_set_new ();

  /* Cups specific, non-ppd related settings */

  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),
					 n_up, n_up);
  gtk_printer_option_set (option, "1");
  set_option_from_settings (option, settings);
  gtk_printer_option_set_add (set, option);
  g_object_unref (option);

  for (i = 0; i < G_N_ELEMENTS(prio_display); i++)
    prio_display[i] = _(prio_display[i]);
  
  option = gtk_printer_option_new ("gtk-job-prio", "Job Priority", GTK_PRINTER_OPTION_TYPE_PICKONE);
  gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (prio),
					 prio, prio_display);
  gtk_printer_option_set (option, "50");
  set_option_from_settings (option, settings);
  gtk_printer_option_set_add (set, option);
  g_object_unref (option);

  option = gtk_printer_option_new ("gtk-billing-info", "Billing Info", GTK_PRINTER_OPTION_TYPE_STRING);
  gtk_printer_option_set (option, "");
  set_option_from_settings (option, settings);
  gtk_printer_option_set_add (set, option);
  g_object_unref (option);

  for (i = 0; i < G_N_ELEMENTS(cover_display); i++)
    cover_display[i] = _(cover_display[i]);
  
  option = gtk_printer_option_new ("gtk-cover-before", "Before", GTK_PRINTER_OPTION_TYPE_PICKONE);
  gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (cover),
					 cover, cover_display);
  gtk_printer_option_set (option, "none");
  set_option_from_settings (option, settings);
  gtk_printer_option_set_add (set, option);
  g_object_unref (option);

  option = gtk_printer_option_new ("gtk-cover-after", "After", GTK_PRINTER_OPTION_TYPE_PICKONE);
  gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (cover),
					 cover, cover_display);
  gtk_printer_option_set (option, "none");
  set_option_from_settings (option, settings);
  gtk_printer_option_set_add (set, option);
  g_object_unref (option);

  option = gtk_prin