[libdocument] Add EvMappinig to unify all Ev*Mapping types

1 files changed, 93 insertions, 0 deletions

diff --git a/libdocument/ev-mapping.c b/libdocument/ev-mapping.c
new file mode 100644
index 0000000..a1bb5f7
--- /dev/null
+++ b/libdocument/ev-mapping.c
@@ -0,0 +1,93 @@
+/* ev-mapping.c
+ *  this file is part of evince, a gnome document viewer
+ *
+ * Copyright (C) 2009 Carlos Garcia Campos <carlosgc@gnome.org>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "ev-mapping.h"
+
+EvMapping *
+ev_mapping_list_find (GList         *mapping_list,
+		      gconstpointer  data)
+{
+	GList *list;
+
+	for (list = mapping_list; list; list = list->next) {
+		EvMapping *mapping = list->data;
+
+		if (mapping->data == data)
+			return mapping;
+	}
+
+	return NULL;
+}
+
+EvMapping *
+ev_mapping_list_find_custom (GList         *mapping_list,
+			     gconstpointer  data,
+			     GCompareFunc   func)
+{
+	GList *list;
+
+	for (list = mapping_list; list; list = list->next) {
+		EvMapping *mapping = list->data;
+
+		if (!func (mapping->data, data))
+			return mapping;
+	}
+
+	return NULL;
+}
+
+gpointer
+ev_mapping_list_get_data (GList   *mapping_list,
+			  gdouble  x,
+			  gdouble  y)
+{
+	GList *list;
+
+	for (list = mapping_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;
+}
+
+static void
+mapping_list_free_foreach (EvMapping     *mapping,
+			   GDestroyNotify destroy_func)
+{
+	destroy_func (mapping->data);
+	g_free (mapping);
+}
+
+void
+ev_mapping_list_free (GList          *mapping_list,
+		      GDestroyNotify  destroy_func)
+{
+	g_list_foreach (mapping_list,
+			(GFunc)mapping_list_free_foreach,
+			destroy_func);
+	g_list_free (mapping_list);
+}