// Copyright (c) 2010, Thomas Goyne
// All rights reserved.
//
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// Aegisub Project http://www.aegisub.org/
//
// $Id$

/// @file charset_conv.h
/// @see charset_conv.cpp
/// @ingroup utility
///

#ifndef AGI_PRE
#include <wx/string.h>
#include <wx/strconv.h>
#include <wx/thread.h>
#endif

#include "aegisub_endian.h"
#include <libaegisub/charset_conv.h>

/// @class AegisubCSConv
/// @brief wxMBConv implementation for converting to and from unicode
class AegisubCSConv : public wxMBConv {
public:

	// wxMBConv implementation; see strconv.h for usage details
	size_t ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen = wxNO_LEN) const;
	size_t FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen = wxNO_LEN) const;
	wxMBConv *Clone() const { return NULL; };

protected:
	AegisubCSConv();
private:
	AegisubCSConv(const AegisubCSConv&);
	AegisubCSConv& operator=(const AegisubCSConv&);
	wxString localCharset;

#if wxUSE_THREADS
	mutable wxMutex iconvMutex;
#endif

	// ToWChar and FromWChar are const in wxMBConv, but iconv can't be used
	// immutably
	mutable agi::charset::IconvWrapper conv;
};

extern AegisubCSConv& csConvLocal;