shell/ev-history.c

   1 /*
   2  *  Copyright (C) 2005 Marco Pesenti Gritti
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; either version 2, or (at your option)
   7  *  any later version.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  *
  18  *  $Id$
  19  */
  20
  21 #include "config.h"
  22
  23 #include <glib/gi18n.h>
  24
  25 #include "ev-history.h"
  26
  27 struct _EvHistoryPrivate
  28 {
  29         GList *links;
  30         int current_index;
  31 };
  32
  33 static void ev_history_init       (EvHistory *history);
  34 static void ev_history_class_init (EvHistoryClass *class);
  35
  36 static GObjectClass *parent_class = NULL;
  37
  38 G_DEFINE_TYPE (EvHistory, ev_history, G_TYPE_OBJECT)
  39
  40 #define EV_HISTORY_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_HISTORY, EvHistoryPrivate))
  41
  42 static void
  43 ev_history_init (EvHistory *history)
  44 {
  45         history->priv = EV_HISTORY_GET_PRIVATE (history);
  46
  47         history->priv->links = NULL;
  48 }
  49
  50 static void
  51 free_links_list (GList *l)
  52 {
  53         g_list_foreach (l, (GFunc)g_object_unref, NULL);
  54         g_list_free (l);
  55 }
  56
  57 static void
  58 ev_history_finalize (GObject *object)
  59 {
  60         EvHistory *history = EV_HISTORY (object);
  61
  62         free_links_list (history->priv->links);
  63
  64         parent_class->finalize (object);
  65 }
  66
  67 static void
  68 ev_history_class_init (EvHistoryClass *class)
  69 {
  70         GObjectClass *object_class = G_OBJECT_CLASS (class);
  71
  72         object_class->finalize = ev_history_finalize;
  73
  74         parent_class = g_type_class_peek_parent (class);
  75
  76         g_type_class_add_private (object_class, sizeof (EvHistoryPrivate));
  77 }
  78
  79 void
  80 ev_history_add_link (EvHistory *history, EvLink *link)
  81 {
  82         int length;
  83
  84         g_return_if_fail (EV_IS_HISTORY (history));
  85         g_return_if_fail (EV_IS_LINK (link));
  86
  87         g_object_ref (link);
  88         history->priv->links = g_list_append (history->priv->links,
  89                                               link);
  90
  91         length = g_list_length (history->priv->links);
  92         history->priv->current_index = length - 1;
  93
  94         g_print ("Set current\n");
  95 }
  96
  97 void
  98 ev_history_add_page (EvHistory *history, int page)
  99 {
 100         EvLink *link;
 101         char *title;
 102
 103         g_return_if_fail (EV_IS_HISTORY (history));
 104
 105         title = g_strdup_printf (_("Page %d\n"), page);
 106         link = ev_link_new_page (title, page);
 107         g_free (title);
 108
 109         ev_history_add_link (history, link);
 110 }
 111
 112 EvLink *
 113 ev_history_get_link_nth (EvHistory *history, int index)
 114 {
 115         GList *l;
 116
 117         g_return_val_if_fail (EV_IS_HISTORY (history), NULL);
 118
 119         l = g_list_nth (history->priv->links, index);
 120
 121         return EV_LINK (l->data);
 122 }
 123
 124 int
 125 ev_history_get_n_links (EvHistory *history)
 126 {
 127         g_return_val_if_fail (EV_IS_HISTORY (history), -1);
 128
 129         return g_list_length (history->priv->links);
 130 }
 131
 132 int
 133 ev_history_get_current_index (EvHistory *history)
 134 {
 135         g_return_val_if_fail (EV_IS_HISTORY (history), -1);
 136
 137         return history->priv->current_index;
 138 }
 139
 140 void
 141 ev_history_set_current_index (EvHistory *history, int index)
 142 {
 143         g_return_if_fail (EV_IS_HISTORY (history));
 144
 145         history->priv->current_index = index;
 146 }
 147
 148 EvHistory *
 149 ev_history_new (void)
 150 {
 151         return EV_HISTORY (g_object_new (EV_TYPE_HISTORY, NULL));
 152 }