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, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include "config.h"
  22 #include <string.h>
  23 #include <glib.h>
  24 #include <gmodule.h>
  25
  26 #include "gtkprinteroptionset.h"
  27
  28 /*****************************************
  29  *         GtkPrinterOptionSet    *
  30  *****************************************/
  31
  32 enum {
  33   CHANGED,
  34   LAST_SIGNAL
  35 };
  36
  37 static guint signals[LAST_SIGNAL] = { 0 };
  38
  39 /* ugly side-effect of aliasing */
  40 #undef gtk_printer_option_set
  41
  42 G_DEFINE_TYPE (GtkPrinterOptionSet, gtk_printer_option_set, G_TYPE_OBJECT)
  43
  44 static void
  45 gtk_printer_option_set_finalize (GObject *object)
  46 {
  47   GtkPrinterOptionSet *set = GTK_PRINTER_OPTION_SET (object);
  48
  49   g_hash_table_destroy (set->hash);
  50   g_ptr_array_foreach (set->array, (GFunc)g_object_unref, NULL);
  51   g_ptr_array_free (set->array, TRUE);
  52
  53   G_OBJECT_CLASS (gtk_printer_option_set_parent_class)->finalize (object);
  54 }
  55
  56 static void
  57 gtk_printer_option_set_init (GtkPrinterOptionSet *set)
  58 {
  59   set->array = g_ptr_array_new ();
  60   set->hash = g_hash_table_new (g_str_hash, g_str_equal);
  61 }
  62
  63 static void
  64 gtk_printer_option_set_class_init (GtkPrinterOptionSetClass *class)
  65 {
  66   GObjectClass *gobject_class = (GObjectClass *)class;
  67
  68   gobject_class->finalize = gtk_printer_option_set_finalize;
  69
  70   signals[CHANGED] =
  71     g_signal_new ("changed",
  72                   G_TYPE_FROM_CLASS (gobject_class),
  73                   G_SIGNAL_RUN_LAST,
  74                   G_STRUCT_OFFSET (GtkPrinterOptionSetClass, changed),
  75                   NULL, NULL,
  76                   g_cclosure_marshal_VOID__VOID,
  77                   G_TYPE_NONE, 0);
  78 }
  79
  80
  81 static void
  82 emit_changed (GtkPrinterOptionSet *set)
  83 {
  84   g_signal_emit (set, signals[CHANGED], 0);
  85 }
  86
  87 GtkPrinterOptionSet *
  88 gtk_printer_option_set_new (void)
  89 {
  90   return g_object_new (GTK_TYPE_PRINTER_OPTION_SET, NULL);
  91 }
  92
  93 void
  94 gtk_printer_option_set_remove (GtkPrinterOptionSet *set,
  95                                GtkPrinterOption    *option)
  96 {
  97   int i;
  98
  99   for (i = 0; i < set->array->len; i++)
 100     {
 101       if (g_ptr_array_index (set->array, i) == option)
 102         {
 103           g_ptr_array_remove_index (set->array, i);
 104           g_hash_table_remove (set->hash, option->name);
 105           g_signal_handlers_disconnect_by_func (option, emit_changed, set);
 106
 107           g_object_unref (option);
 108           break;
 109         }
 110     }
 111 }
 112
 113 void
 114 gtk_printer_option_set_add (GtkPrinterOptionSet *set,
 115                             GtkPrinterOption    *option)
 116 {
 117   g_object_ref (option);
 118
 119   if (gtk_printer_option_set_lookup (set, option->name))
 120     gtk_printer_option_set_remove (set, option);
 121
 122   g_ptr_array_add (set->array, option);
 123   g_hash_table_insert (set->hash, option->name, option);
 124   g_signal_connect_object (option, "changed", G_CALLBACK (emit_changed), set, G_CONNECT_SWAPPED);
 125 }
 126
 127 GtkPrinterOption *
 128 gtk_printer_option_set_lookup (GtkPrinterOptionSet *set,
 129                                const char          *name)
 130 {
 131   gpointer ptr;
 132
 133   ptr = g_hash_table_lookup (set->hash, name);
 134
 135   return GTK_PRINTER_OPTION (ptr);
 136 }
 137
 138 void
 139 gtk_printer_option_set_clear_conflicts (GtkPrinterOptionSet *set)
 140 {
 141   gtk_printer_option_set_foreach (set,
 142                                   (GtkPrinterOptionSetFunc)gtk_printer_option_clear_has_conflict,
 143                                   NULL);
 144 }
 145
 146 /**
 147  * gtk_printer_option_set_get_groups:
 148  *
 149  * Return value: (element-type utf8) (transfer full):
 150  */
 151 GList *
 152 gtk_printer_option_set_get_groups (GtkPrinterOptionSet *set)
 153 {
 154   GtkPrinterOption *option;
 155   GList *list = NULL;
 156   int i;
 157
 158   for (i = 0; i < set->array->len; i++)
 159     {
 160       option = g_ptr_array_index (set->array, i);
 161
 162       if (g_list_find_custom (list, option->group, (GCompareFunc)g_strcmp0) == NULL)
 163         list = g_list_prepend (list, g_strdup (option->group));
 164     }
 165
 166   return g_list_reverse (list);
 167 }
 168
 169 void
 170 gtk_printer_option_set_foreach_in_group (GtkPrinterOptionSet     *set,
 171                                          const char              *group,
 172                                          GtkPrinterOptionSetFunc  func,
 173                                          gpointer                 user_data)
 174 {
 175   GtkPrinterOption *option;
 176   int i;
 177
 178   for (i = 0; i < set->array->len; i++)
 179     {
 180       option = g_ptr_array_index (set->array, i);
 181
 182       if (group == NULL || g_strcmp0 (group, option->group) == 0)
 183         func (option, user_data);
 184     }
 185 }
 186
 187 void
 188 gtk_printer_option_set_foreach (GtkPrinterOptionSet *set,
 189                                 GtkPrinterOptionSetFunc func,
 190                                 gpointer user_data)
 191 {
 192   gtk_printer_option_set_foreach_in_group (set, NULL, func, user_data);
 193 }