diff options
Diffstat (limited to 'shell/ev-history.c')
| -rw-r--r-- | shell/ev-history.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/shell/ev-history.c b/shell/ev-history.c new file mode 100644 index 0000000..2029d3c --- /dev/null +++ b/shell/ev-history.c @@ -0,0 +1,227 @@ +/* + * Copyright (C) 2005 Marco Pesenti Gritti + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + +#include "config.h" + +#include <glib/gi18n.h> + +#include "ev-history.h" + +struct _EvHistoryPrivate +{ + GList *links; + int current_index; +}; + +enum { + PROP_0, + PROP_INDEX +}; + +static void ev_history_init (EvHistory *history); +static void ev_history_class_init (EvHistoryClass *class); + +static GObjectClass *parent_class = NULL; + +G_DEFINE_TYPE (EvHistory, ev_history, G_TYPE_OBJECT) + +#define EV_HISTORY_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_HISTORY, EvHistoryPrivate)) + +static void +ev_history_init (EvHistory *history) +{ + history->priv = EV_HISTORY_GET_PRIVATE (history); + + history->priv->links = NULL; + history->priv->current_index = -1; +} + +static void +free_links_list (GList *l) +{ + g_list_foreach (l, (GFunc)g_object_unref, NULL); + g_list_free (l); +} + +static void +ev_history_finalize (GObject *object) +{ + EvHistory *history = EV_HISTORY (object); + + free_links_list (history->priv->links); + + parent_class->finalize (object); +} + +static void +ev_history_get_property (GObject *object, guint prop_id, GValue *value, + GParamSpec *param_spec) +{ + EvHistory *self; + + self = EV_HISTORY (object); + + switch (prop_id) { + case PROP_INDEX: + g_value_set_int (value, self->priv->current_index); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, + prop_id, + param_spec); + break; + } +} + +static void +ev_history_set_property (GObject *object, guint prop_id, const GValue *value, + GParamSpec *param_spec) +{ + EvHistory *self; + + self = EV_HISTORY (object); + + switch (prop_id) { + case PROP_INDEX: + ev_history_set_current_index (self, g_value_get_int (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, + prop_id, + param_spec); + break; + } +} + +static void +ev_history_class_init (EvHistoryClass *class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (class); + + object_class->finalize = ev_history_finalize; + object_class->set_property = ev_history_set_property; + object_class->get_property = ev_history_get_property; + + parent_class = g_type_class_peek_parent (class); + + g_object_class_install_property (object_class, + PROP_INDEX, + g_param_spec_int ("index", + "Current Index", + "The current index", + -1, + G_MAXINT, + 0, + G_PARAM_READWRITE)); + + g_type_class_add_private (object_class, sizeof (EvHistoryPrivate)); +} + +void +ev_history_add_link (EvHistory *history, EvLink *link) +{ + int length; + + g_return_if_fail (EV_IS_HISTORY (history)); + g_return_if_fail (EV_IS_LINK (link)); + + length = g_list_length (history->priv->links); + if (history->priv->current_index < length - 1) { + GList *l = g_list_nth (history->priv->links, + history->priv->current_index + 1); + + if (l->prev) { + l->prev->next = NULL; + free_links_list (l); + } else { + free_links_list (history->priv->links); + history->priv->links = NULL; + } + } + + g_object_ref (link); + history->priv->links = g_list_append (history->priv->links, + link); + + length = g_list_length (history->priv->links); + history->priv->current_index = length - 1; +} + +void +ev_history_add_page (EvHistory *history, int page) +{ + EvLink *link; + EvLinkDest *dest; + EvLinkAction *action; + gchar *title; + + g_return_if_fail (EV_IS_HISTORY (history)); + title = g_strdup_printf (_("Page: %d"), page); + + dest = ev_link_dest_new_page (page); + action = ev_link_action_new_dest (dest); + link = ev_link_new (title, action); + g_free (title); + + ev_history_add_link (history, link); +} + +EvLink * +ev_history_get_link_nth (EvHistory *history, int index) +{ + GList *l; + + g_return_val_if_fail (EV_IS_HISTORY (history), NULL); + + l = g_list_nth (history->priv->links, index); + + return EV_LINK (l->data); +} + +int +ev_history_get_n_links (EvHistory *history) +{ + g_return_val_if_fail (EV_IS_HISTORY (history), -1); + + return g_list_length (history->priv->links); +} + +int +ev_history_get_current_index (EvHistory *history) +{ + g_return_val_if_fail (EV_IS_HISTORY (history), -1); + + return history->priv->current_index; +} + +void +ev_history_set_current_index (EvHistory *history, int index) +{ + g_return_if_fail (EV_IS_HISTORY (history)); + + history->priv->current_index = index; + + g_object_notify (G_OBJECT (history), "index"); +} + +EvHistory * +ev_history_new (void) +{ + return EV_HISTORY (g_object_new (EV_TYPE_HISTORY, NULL)); +} |