Aegisub/aegisub/src/charset_detect.cpp

// Copyright (c) 2010, Amar Takhar
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
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//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
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// Aegisub Project http://www.aegisub.org/
//
// $Id$

/// @file charset_detect.cpp
/// @brief Wrapper around text encoding detection library
/// @ingroup utility
///


///////////
// Headers
#include "config.h"

#ifndef AGI_PRE
#include <fstream>
#include <list>

#include <wx/arrstr.h>
#include <wx/choicdlg.h>
#include <wx/intl.h>
#endif

#include <libaegisub/charset.h>
#include <libaegisub/log.h>

#include "charset_detect.h"
#include "text_file_reader.h"
#include "compat.h"



/// @brief Get encoding 
/// @param filename 
/// @return 
///
wxString CharSetDetect::GetEncoding(wxString filename) {
	LOG_I("charset/file") << filename;
	bool unknown = 0;

	agi::charset::CharsetListDetected list;
	agi::charset::CharsetListDetected::const_iterator i_lst;

	try {
		agi::charset::DetectAll(STD_STR(filename), list);
    } catch (const agi::charset::UnknownCharset&) {
		unknown = 1;
	}

	/// @todo If the charset is unknown we need to display a complete list of character sets.
	if (list.size() > 1) {

		// Get choice from user
		wxArrayString choices;

		for (i_lst = list.begin(); i_lst != list.end(); ++i_lst) {
			choices.Add(lagi_wxString(i_lst->second));
		}

		int choice = wxGetSingleChoiceIndex(_("Aegisub could not narrow down the character set to a single one.\nPlease pick one below:"),_("Choose character set"),choices);
		if (choice == -1) throw _T("Canceled");
		return choices.Item(choice);
	}

	i_lst = list.begin();
	return i_lst->second;
}