Pileus Git - ~andy/gtk/blob - gtk/gtkprinteroptionset.c

   1 /* GTK - The GIMP Toolkit
   2  * gtkprintbackend.h: Abstract printer backend interfaces
   3  * Copyright (C) 2006, Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include "config.h"
  20 #include <string.h>
  21 #include <glib.h>
  22 #include <gmodule.h>
  23
  24 #include "gtkprinteroptionset.h"
  25
  26 /*****************************************
  27  *         GtkPrinterOptionSet    *
  28  *****************************************/
  29
  30 enum {
  31   CHANGED,
  32   LAST_SIGNAL
  33 };
  34
  35 static guint signals[LAST_SIGNAL] = { 0 };
  36
  37 /* ugly side-effect of aliasing */
  38 #undef gtk_printer_option_set
  39
  40 G_DEFINE_TYPE (GtkPrinterOptionSet, gtk_printer_option_set, G_TYPE_OBJECT)
  41
  42 static void
  43 gtk_printer_option_set_finalize (GObject *object)
  44 {
  45   GtkPrinterOptionSet *set = GTK_PRINTER_OPTION_SET (object);
  46
  47   g_hash_table_destroy (set->hash);
  48   g_ptr_array_foreach (set->array, (GFunc)g_object_unref, NULL);
  49   g_ptr_array_free (set->array, TRUE);
  50
  51   G_OBJECT_CLASS (gtk_printer_option_set_parent_class)->finalize (object);
  52 }
  53
  54 static void
  55 gtk_printer_option_set_init (GtkPrinterOptionSet *set)
  56 {
  57   set->array = g_ptr_array_new ();
  58   set->hash = g_hash_table_new (g_str_hash, g_str_equal);
  59 }
  60
  61 static void
  62 gtk_printer_option_set_class_init (GtkPrinterOptionSetClass *class)
  63 {
  64   GObjectClass *gobject_class = (GObjectClass *)class;
  65
  66   gobject_class->finalize = gtk_printer_option_set_finalize;
  67
  68   signals[CHANGED] =
  69     g_signal_new ("changed",
  70                   G_TYPE_FROM_CLASS (gobject_class),
  71                   G_SIGNAL_RUN_LAST,
  72                   G_STRUCT_OFFSET (GtkPrinterOptionSetClass, changed),
  73                   NULL, NULL,
  74                   g_cclosure_marshal_VOID__VOID,
  75                   G_TYPE_NONE, 0);
  76 }
  77
  78
  79 static void
  80 emit_changed (GtkPrinterOptionSet *set)
  81 {
  82   g_signal_emit (set, signals[CHANGED], 0);
  83 }
  84
  85 GtkPrinterOptionSet *
  86 gtk_printer_option_set_new (void)
  87 {
  88   return g_object_new (GTK_TYPE_PRINTER_OPTION_SET, NULL);
  89 }
  90
  91 void
  92 gtk_printer_option_set_remove (GtkPrinterOptionSet *set,
  93                                GtkPrinterOption    *option)
  94 {
  95   int i;
  96
  97   for (i = 0; i < set->array->len; i++)
  98     {
  99       if (g_ptr_array_index (set->array, i) == option)
 100         {
 101           g_ptr_array_remove_index (set->array, i);
 102           g_hash_table_remove (set->hash, option->name);
 103           g_signal_handlers_disconnect_by_func (option, emit_changed, set);
 104
 105           g_object_unref (option);
 106           break;
 107         }
 108     }
 109 }
 110
 111 void
 112 gtk_printer_option_set_add (GtkPrinterOptionSet *set,
 113                             GtkPrinterOption    *option)
 114 {
 115   g_object_ref (option);
 116
 117   if (gtk_printer_option_set_lookup (set, option->name))
 118     gtk_printer_option_set_remove (set, option);
 119
 120   g_ptr_array_add (set->array, option);
 121   g_hash_table_insert (set->hash, option->name, option);
 122   g_signal_connect_object (option, "changed", G_CALLBACK (emit_changed), set, G_CONNECT_SWAPPED);
 123 }
 124
 125 GtkPrinterOption *
 126 gtk_printer_option_set_lookup (GtkPrinterOptionSet *set,
 127                                const char          *name)
 128 {
 129   gpointer ptr;
 130
 131   ptr = g_hash_table_lookup (set->hash, name);
 132
 133   return GTK_PRINTER_OPTION (ptr);
 134 }
 135
 136 void
 137 gtk_printer_option_set_clear_conflicts (GtkPrinterOptionSet *set)
 138 {
 139   gtk_printer_option_set_foreach (set,
 140                                   (GtkPrinterOptionSetFunc)gtk_printer_option_clear_has_conflict,
 141                                   NULL);
 142 }
 143
 144 /**
 145  * gtk_printer_option_set_get_groups:
 146  *
 147  * Return value: (element-type utf8) (transfer full):
 148  */
 149 GList *
 150 gtk_printer_option_set_get_groups (GtkPrinterOptionSet *set)
 151 {
 152   GtkPrinterOption *option;
 153   GList *list = NULL;
 154   int i;
 155
 156   for (i = 0; i < set->array->len; i++)
 157     {
 158       option = g_ptr_array_index (set->array, i);
 159
 160       if (g_list_find_custom (list, option->group, (GCompareFunc)g_strcmp0) == NULL)
 161         list = g_list_prepend (list, g_strdup (option->group));
 162     }
 163
 164   return g_list_reverse (list);
 165 }
 166
 167 void
 168 gtk_printer_option_set_foreach_in_group (GtkPrinterOptionSet     *set,
 169                                          const char              *group,
 170                                          GtkPrinterOptionSetFunc  func,
 171                                          gpointer                 user_data)
 172 {
 173   GtkPrinterOption *option;
 174   int i;
 175
 176   for (i = 0; i < set->array->len; i++)
 177     {
 178       option = g_ptr_array_index (set->array, i);
 179
 180       if (group == NULL || g_strcmp0 (group, option->group) == 0)
 181         func (option, user_data);
 182     }
 183 }
 184
 185 void
 186 gtk_printer_option_set_foreach (GtkPrinterOptionSet *set,
 187                                 GtkPrinterOptionSetFunc func,
 188                                 gpointer user_data)
 189 {
 190   gtk_printer_option_set_foreach_in_group (set, NULL, func, user_data);
 191 }