From f6ce926719943751cf65cacde7fae050593eb2d6 Mon Sep 17 00:00:00 2001 From: Perberos Date: Wed, 9 Nov 2011 18:17:43 -0300 Subject: inicial --- libdocument/ev-mapping-list.c | 146 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 libdocument/ev-mapping-list.c (limited to 'libdocument/ev-mapping-list.c') diff --git a/libdocument/ev-mapping-list.c b/libdocument/ev-mapping-list.c new file mode 100644 index 00000000..50ee9b77 --- /dev/null +++ b/libdocument/ev-mapping-list.c @@ -0,0 +1,146 @@ +/* ev-mapping.c + * this file is part of evince, a mate document viewer + * + * Copyright (C) 2009 Carlos Garcia Campos + * + * Evince 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 of the License, or + * (at your option) any later version. + * + * Evince 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "ev-mapping-list.h" + +struct _EvMappingList { + guint page; + GList *list; + GDestroyNotify data_destroy_func; + volatile gint ref_count; +}; + +EvMapping * +ev_mapping_list_find (EvMappingList *mapping_list, + gconstpointer data) +{ + GList *list; + + for (list = mapping_list->list; list; list = list->next) { + EvMapping *mapping = list->data; + + if (mapping->data == data) + return mapping; + } + + return NULL; +} + +EvMapping * +ev_mapping_list_find_custom (EvMappingList *mapping_list, + gconstpointer data, + GCompareFunc func) +{ + GList *list; + + for (list = mapping_list->list; list; list = list->next) { + EvMapping *mapping = list->data; + + if (!func (mapping->data, data)) + return mapping; + } + + return NULL; +} + +gpointer +ev_mapping_list_get_data (EvMappingList *mapping_list, + gdouble x, + gdouble y) +{ + GList *list; + + for (list = mapping_list->list; list; list = list->next) { + EvMapping *mapping = list->data; + + if ((x >= mapping->area.x1) && + (y >= mapping->area.y1) && + (x <= mapping->area.x2) && + (y <= mapping->area.y2)) { + return mapping->data; + } + } + + return NULL; +} + +GList * +ev_mapping_list_get_list (EvMappingList *mapping_list) +{ + return mapping_list ? mapping_list->list : NULL; +} + +guint +ev_mapping_list_get_page (EvMappingList *mapping_list) +{ + return mapping_list->page; +} + +EvMappingList * +ev_mapping_list_new (guint page, + GList *list, + GDestroyNotify data_destroy_func) +{ + EvMappingList *mapping_list; + + g_return_val_if_fail (data_destroy_func != NULL, NULL); + + mapping_list = g_slice_new (EvMappingList); + mapping_list->page = page; + mapping_list->list = list; + mapping_list->data_destroy_func = data_destroy_func; + mapping_list->ref_count = 1; + + return mapping_list; +} + +EvMappingList * +ev_mapping_list_ref (EvMappingList *mapping_list) +{ + g_return_val_if_fail (mapping_list != NULL, NULL); + g_return_val_if_fail (mapping_list->ref_count > 0, mapping_list); + + g_atomic_int_add (&mapping_list->ref_count, 1); + + return mapping_list; +} + +static void +mapping_list_free_foreach (EvMapping *mapping, + GDestroyNotify destroy_func) +{ + destroy_func (mapping->data); + g_free (mapping); +} + +void +ev_mapping_list_unref (EvMappingList *mapping_list) +{ + g_return_if_fail (mapping_list != NULL); + g_return_if_fail (mapping_list->ref_count > 0); + + if (g_atomic_int_exchange_and_add (&mapping_list->ref_count, -1) - 1 == 0) { + g_list_foreach (mapping_list->list, + (GFunc)mapping_list_free_foreach, + mapping_list->data_destroy_func); + g_list_free (mapping_list->list); + g_slice_free (EvMappingList, mapping_list); + } +} -- cgit v1.2.1