#ifndef _Encodings_h
#define _Encodings_h

/*
 *	subtitleeditor -- a tool to create or edit subtitle
 *
 *	http://home.gna.org/subtitleeditor/
 *	https://gna.org/projects/subtitleeditor/
 *
 *	Copyright @ 2005-2009, kitone
 *
 *	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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
 */


#include "i18n.h"
#include <glibmm.h>

struct EncodingInfo
{
	const gchar *charset;
	const gchar *name;
};



class Encodings
{
public:

	/*
	 */
	static EncodingInfo* get_encodings_info();

	/*
	 *
	 */
	static EncodingInfo* get_from_charset(const Glib::ustring &charset);

	/*
	 * Return a human readable string or empty string, ex:
	 * "name (charset)"
	 * "Unicode (UTF-8)"
	 */
	static Glib::ustring get_label_from_charset(const Glib::ustring &charset);

protected:
	static bool is_initialized;

	static bool initialize();
};

namespace Encoding
{

	/*
	 * Trying to convert from charset to UTF-8.
	 * Return utf8 string or throw EncodingConvertError exception.
	 */
	Glib::ustring convert_to_utf8_from_charset(const std::string &content, const Glib::ustring &charset);
	
	/*
	 * Trying to autodetect the charset and convert to UTF-8.
	 * 3 steps:
	 *	- Try UTF-8
	 *	- Try with user encoding preferences
	 *	- Try with all encodings
	 *
	 * Return utf8 string and sets charset found 
	 * or throw EncodingConvertError exception.
	 */
	Glib::ustring convert_to_utf8(const std::string &content, Glib::ustring &charset);

	/*
	 * Convert the UTF-8 text to the charset.
	 * Throw EncodingConvertError exception.
	 */
	std::string convert_from_utf8_to_charset(const Glib::ustring &utf8_content, const Glib::ustring &charset);

}//namespace Encoding

#endif//_Encodings_h

