[wxWidgets.git] / src / common / encconv.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        encconv.cpp
// Purpose:     wxEncodingConverter class for converting between different
//              font encodings
// Author:      Vaclav Slavik
// Copyright:   (c) 1999 Vaclav Slavik
// Licence:     wxWindows Licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "encconv.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
  #pragma hdrstop
#endif

#if wxUSE_FONTMAP

#include "wx/encconv.h"

#include <stdlib.h>
#ifdef __WINE__
#include <search.h>
#endif

// conversion tables, generated by scripts in $(WXWIN)/misc/unictabl:
#ifdef __BORLANDC__
#include "../common/unictabl.inc"
#else
#include "unictabl.inc"
#endif

#if wxUSE_WCHAR_T
typedef wchar_t tchar;
#else
typedef char tchar;
#endif

static wxUint16* LINKAGEMODE GetEncTable(wxFontEncoding enc)
{
    for (int i = 0; encodings_list[i].table != NULL; i++)
    {
        if (encodings_list[i].encoding == enc)
            return encodings_list[i].table;
    }
    return NULL;
}

typedef struct {
    wxUint16 u;
    wxUint8  c;
} CharsetItem;


extern "C" int LINKAGEMODE CompareCharsetItems(const void *i1, const void *i2)
{
    return ( ((CharsetItem*)i1) -> u - ((CharsetItem*)i2) -> u );
}


static CharsetItem* LINKAGEMODE BuildReverseTable(wxUint16 *tbl)
{
    CharsetItem *rev = new CharsetItem[128];

    for (int i = 0; i < 128; i++)
        rev[i].c = 128 + i, rev[i].u = tbl[i];

    qsort(rev, 128, sizeof(CharsetItem), CompareCharsetItems);

    return rev;
}


wxEncodingConverter::wxEncodingConverter()
{
    m_Table = NULL;
    m_UnicodeInput = m_UnicodeOutput = FALSE;
    m_JustCopy = FALSE;
}


bool wxEncodingConverter::Init(wxFontEncoding input_enc, wxFontEncoding output_enc, int method)
{
    unsigned i;
    wxUint16 *in_tbl = NULL, *out_tbl = NULL;

    if (m_Table) {delete[] m_Table; m_Table = NULL;}

#if !wxUSE_WCHAR_T
    if (input_enc == wxFONTENCODING_UNICODE || output_enc == wxFONTENCODING_UNICODE) return FALSE;
#endif

    if (input_enc == output_enc) {m_JustCopy = TRUE; return TRUE;}

    m_UnicodeOutput = (output_enc == wxFONTENCODING_UNICODE);
    m_JustCopy = FALSE;

    if (input_enc == wxFONTENCODING_UNICODE)
    {
        if ((out_tbl = GetEncTable(output_enc)) == NULL) return FALSE;

        m_Table = new tchar[65536];
        for (i = 0; i < 128; i++)  m_Table[i] = (tchar)i; // 7bit ASCII
        for (i = 128; i < 65536; i++)  m_Table[i] = (tchar)'?';
                // FIXME - this should be character that means `unicode to charset' impossible, not '?'

        if (method == wxCONVERT_SUBSTITUTE)
        {
            for (i = 0; i < encoding_unicode_fallback_count; i++)
                m_Table[encoding_unicode_fallback[i].c] = (tchar) encoding_unicode_fallback[i].s;
        }

        for (i = 0; i < 128; i++)
            m_Table[out_tbl[i]] = (tchar)(128 + i);

        m_UnicodeInput = TRUE;
        return TRUE;
    }

    else
    {
        if ((in_tbl = GetEncTable(input_enc)) == NULL) return FALSE;
        if (output_enc != wxFONTENCODING_UNICODE)
            if ((out_tbl = GetEncTable(output_enc)) == NULL) return FALSE;

        m_UnicodeInput = FALSE;

        m_Table = new tchar[256];
        for (i = 0; i < 128; i++)  m_Table[i] = (tchar)i; // 7bit ASCII

        if (output_enc == wxFONTENCODING_UNICODE)
        {
            for (i = 0; i < 128; i++)  m_Table[128 + i] = (tchar)in_tbl[i];
            return TRUE;
        }
        else
        {
            CharsetItem *rev = BuildReverseTable(out_tbl);
            CharsetItem *item;
            CharsetItem key;

            for (i = 0; i < 128; i++)
            {
                key.u = in_tbl[i];
                item = (CharsetItem*) bsearch(&key, rev, 128, sizeof(CharsetItem), CompareCharsetItems);
                if (item == NULL && method == wxCONVERT_SUBSTITUTE)
                    item = (CharsetItem*) bsearch(&key, encoding_unicode_fallback,
                                encoding_unicode_fallback_count, sizeof(CharsetItem), CompareCharsetItems);
                if (item)
                    m_Table[128 + i] = (tchar)item -> c;
                else
#if wxUSE_WCHAR_T
                    m_Table[128 + i] = (wchar_t)(128 + i);
#else
                    m_Table[128 + i] = (char)(128 + i);
#endif
            }

            delete[] rev;
            return TRUE;
        }
    }
}


void wxEncodingConverter::Convert(const char* input, char* output)
{
    wxASSERT_MSG(!m_UnicodeOutput, wxT("You cannot convert to unicode if output is const char*!"));
    wxASSERT_MSG(!m_UnicodeInput, wxT("You cannot convert from unicode if input is const char*!"));

    const char *i;
    char *o;

    if (m_JustCopy)
    {
        strcpy(output, input);
        return;
    }

    wxCHECK_RET(m_Table != NULL, wxT("You must call wxEncodingConverter::Init() before actually converting!"));

    for (i = input, o = output; *i != 0;)
        *(o++) = (char)(m_Table[(wxUint8)*(i++)]);
    *o = 0;
}


#if wxUSE_WCHAR_T

void wxEncodingConverter::Convert(const char* input, wchar_t* output)
{
    wxASSERT_MSG(m_UnicodeOutput, wxT("You cannot convert to 8-bit if output is const wchar_t*!"));
    wxASSERT_MSG(!m_UnicodeInput, wxT("You cannot convert from unicode if input is const char*!"));

    const char *i;
    wchar_t *o;

    if (m_JustCopy)
    {
        for (i = input, o = output; *i != 0;)
            *(o++) = (wchar_t)(*(i++));
        *o = 0;
        return;
    }

    wxCHECK_RET(m_Table != NULL, wxT("You must call wxEncodingConverter::Init() before actually converting!"));

    for (i = input, o = output; *i != 0;)
        *(o++) = (wchar_t)(m_Table[(wxUint8)*(i++)]);
    *o = 0;
}


void wxEncodingConverter::Convert(const wchar_t* input, char* output)
{
    wxASSERT_MSG(!m_UnicodeOutput, wxT("You cannot convert to unicode if output is const char*!"));
    wxASSERT_MSG(m_UnicodeInput, wxT("You cannot convert from 8-bit if input is const wchar_t*!"));

    const wchar_t *i;
    char *o;

    if (m_JustCopy)
    {
        for (i = input, o = output; *i != 0;)
            *(o++) = (char)(*(i++));
        *o = 0;
        return;
    }

    wxCHECK_RET(m_Table != NULL, wxT("You must call wxEncodingConverter::Init() before actually converting!"));

    for (i = input, o = output; *i != 0;)
        *(o++) = (char)(m_Table[(wxUint16)*(i++)]);
    *o = 0;
}


void wxEncodingConverter::Convert(const wchar_t* input, wchar_t* output)
{
    wxASSERT_MSG(m_UnicodeOutput, wxT("You cannot convert to 8-bit if output is const wchar_t*!"));
    wxASSERT_MSG(m_UnicodeInput, wxT("You cannot convert from 8-bit if input is const wchar_t*!"));

    const wchar_t *i;
    wchar_t *o;

    if (m_JustCopy)
    {
        // wcscpy() is not guaranteed to exist
        for (i = input, o = output; *i != 0;)
            *(o++) = (*(i++));
        *o = 0;
        return;
    }

    wxCHECK_RET(m_Table != NULL, wxT("You must call wxEncodingConverter::Init() before actually converting!"));

    for (i = input, o = output; *i != 0;)
        *(o++) = (wchar_t)(m_Table[(wxUint8)*(i++)]);
    *o = 0;
}

#endif // wxUSE_WCHAR_T


wxString wxEncodingConverter::Convert(const wxString& input)
{
    if (m_JustCopy) return input;

    wxString s;
    const wxChar *i;

    wxCHECK_MSG(m_Table != NULL, s,
                wxT("You must call wxEncodingConverter::Init() before actually converting!"));

    if (m_UnicodeInput)
    {
        for (i = input.c_str(); *i != 0; i++)
            s << (wxChar)(m_Table[(wxUint16)*i]);
    }
    else
    {
        for (i = input.c_str(); *i != 0; i++)
            s << (wxChar)(m_Table[(wxUint8)*i]);
    }

    return s;
}


// Following tables describe classes of encoding equivalence.
//

#define STOP wxFONTENCODING_SYSTEM

#define NUM_OF_PLATFORMS  4 /*must conform to enum wxPLATFORM_XXXX !!!*/
#define ENC_PER_PLATFORM  5
           // max no. of encodings for one language used on one platform
           // Anybody thinks 5 is not enough? ;-)

static wxFontEncoding
    EquivalentEncodings[][NUM_OF_PLATFORMS][ENC_PER_PLATFORM+1] = {

    // *** Please put more common encodings as first! ***

    // Western European
    {
        /* unix    */ {wxFONTENCODING_ISO8859_1, wxFONTENCODING_ISO8859_15, STOP},
        /* windows */ {wxFONTENCODING_CP1252, STOP},
        /* os2     */ {STOP},
        /* mac     */ {STOP}
    },

    // Central European
    {
        /* unix    */ {wxFONTENCODING_ISO8859_2, STOP},
        /* windows */ {wxFONTENCODING_CP1250, STOP},
        /* os2     */ {STOP},
        /* mac     */ {STOP}
    },

    // Baltic
    {
        /* unix    */ {wxFONTENCODING_ISO8859_13, wxFONTENCODING_ISO8859_4, STOP},
        /* windows */ {wxFONTENCODING_CP1257, STOP},
        /* os2     */ {STOP},
        /* mac     */ {STOP}
    },

    // Hebrew
    {
        /* unix    */ {wxFONTENCODING_ISO8859_8, STOP},
        /* windows */ {wxFONTENCODING_CP1255, STOP},
        /* os2     */ {STOP},
        /* mac     */ {STOP}
    },

    // Greek
    {
        /* unix    */ {wxFONTENCODING_ISO8859_7, STOP},
        /* windows */ {wxFONTENCODING_CP1253, STOP},
        /* os2     */ {STOP},
        /* mac     */ {STOP}
    },

    // Arabic
    {
        /* unix    */ {wxFONTENCODING_ISO8859_6, STOP},
        /* windows */ {wxFONTENCODING_CP1256, STOP},
        /* os2     */ {STOP},
        /* mac     */ {STOP}
    },

    // Turkish
    {
        /* unix    */ {wxFONTENCODING_ISO8859_9, STOP},
        /* windows */ {wxFONTENCODING_CP1254, STOP},
        /* os2     */ {STOP},
        /* mac     */ {STOP}
    },

    // Cyrillic
    {
        /* unix    */ {wxFONTENCODING_KOI8, wxFONTENCODING_ISO8859_5, STOP},
        /* windows */ {wxFONTENCODING_CP1251, STOP},
        /* os2     */ {STOP},
        /* mac     */ {STOP}
    },

    {{STOP},{STOP},{STOP},{STOP}} /* Terminator */
    /* no, _not_ Arnold! */
};


wxFontEncodingArray wxEncodingConverter::GetPlatformEquivalents(wxFontEncoding enc, int platform)
{
    if (platform == wxPLATFORM_CURRENT)
    {
#if defined(__WXMSW__)
        platform = wxPLATFORM_WINDOWS;
#elif defined(__WXGTK__) || defined(__WXMOTIF__)
        platform = wxPLATFORM_UNIX;
#elif defined(__WXOS2__)
        platform = wxPLATFORM_OS2;
#elif defined(__WXMAC__)
        platform = wxPLATFORM_MAC;
#endif
    }

    int i, clas, e ;
    wxFontEncoding *f;
    wxFontEncodingArray arr;

    clas = 0;
    while (EquivalentEncodings[clas][0][0] != STOP)
    {
        for (i = 0; i < NUM_OF_PLATFORMS; i++)
            for (e = 0; EquivalentEncodings[clas][i][e] != STOP; e++)
                if (EquivalentEncodings[clas][i][e] == enc)
                {
                    for (f = EquivalentEncodings[clas][platform]; *f != STOP; f++)
                        if (*f == enc) arr.Add(enc);
                    for (f = EquivalentEncodings[clas][platform]; *f != STOP; f++)
                        if (arr.Index(*f) == wxNOT_FOUND) arr.Add(*f);
                    i = NUM_OF_PLATFORMS/*hack*/; break;
                }
        clas++;
    }

    return arr;
}


wxFontEncodingArray wxEncodingConverter::GetAllEquivalents(wxFontEncoding enc)
{
    int i, clas, e, j ;
    wxFontEncoding *f;
    wxFontEncodingArray arr;

    arr = GetPlatformEquivalents(enc); // we want them to be first items in array

    clas = 0;
    while (EquivalentEncodings[clas][0][0] != STOP)
    {
        for (i = 0; i < NUM_OF_PLATFORMS; i++)
            for (e = 0; EquivalentEncodings[clas][i][e] != STOP; e++)
                if (EquivalentEncodings[clas][i][e] == enc)
                {
                    for (j = 0; j < NUM_OF_PLATFORMS; j++)
                        for (f = EquivalentEncodings[clas][j]; *f != STOP; f++)
                            if (arr.Index(*f) == wxNOT_FOUND) arr.Add(*f);
                    i = NUM_OF_PLATFORMS/*hack*/; break;
                }
        clas++;
    }

    return arr;
}

#endif // wxUSE_FONTMAP
Commit	Line	Data
c958260b VS	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: encconv.cpp
	3	// Purpose: wxEncodingConverter class for converting between different
	4	// font encodings
	5	// Author: Vaclav Slavik
	6	// Copyright: (c) 1999 Vaclav Slavik
	7	// Licence: wxWindows Licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifdef __GNUG__
	11	#pragma implementation "encconv.h"
	12	#endif
	13
	14	// For compilers that support precompilation, includes "wx.h".
	15	#include "wx/wxprec.h"
	16
	17	#ifdef __BORLANDC__
	18	#pragma hdrstop
	19	#endif
	20
1e6feb95 VZ	21	#if wxUSE_FONTMAP
1e6feb95 VZ	22
c958260b VS	23	#include "wx/encconv.h"
	24
	25	#include <stdlib.h>
5283098e JS	26	#ifdef __WINE__
	27	#include <search.h>
	28	#endif
c958260b	29
94fc5183 VS	30	// conversion tables, generated by scripts in $(WXWIN)/misc/unictabl:
	31	#ifdef __BORLANDC__
	32	#include "../common/unictabl.inc"
	33	#else
03424b1b	34	#include "unictabl.inc"
94fc5183	35	#endif
c958260b	36
f6bcfd97 BP	37	#if wxUSE_WCHAR_T
	38	typedef wchar_t tchar;
	39	#else
	40	typedef char tchar;
	41	#endif
c958260b	42
eda22ec3	43	static wxUint16* LINKAGEMODE GetEncTable(wxFontEncoding enc)
c958260b VS	44	{
	45	for (int i = 0; encodings_list[i].table != NULL; i++)
	46	{
03424b1b	47	if (encodings_list[i].encoding == enc)
c958260b VS	48	return encodings_list[i].table;
	49	}
	50	return NULL;
	51	}
	52
	53	typedef struct {
	54	wxUint16 u;
	55	wxUint8 c;
	56	} CharsetItem;
	57
	58
	59
90350682	60	extern "C" int LINKAGEMODE CompareCharsetItems(const void i1, const void i2)
c958260b VS	61	{
	62	return ( ((CharsetItem)i1) -> u - ((CharsetItem)i2) -> u );
	63	}
	64
	65
eda22ec3	66	static CharsetItem* LINKAGEMODE BuildReverseTable(wxUint16 *tbl)
c958260b VS	67	{
c958260b VS	68	CharsetItem *rev = new CharsetItem[128];
03424b1b	69
c958260b VS	70	for (int i = 0; i < 128; i++)
	71	rev[i].c = 128 + i, rev[i].u = tbl[i];
	72
	73	qsort(rev, 128, sizeof(CharsetItem), CompareCharsetItems);
03424b1b	74
c958260b VS	75	return rev;
	76	}
	77
	78
	79
	80	wxEncodingConverter::wxEncodingConverter()
	81	{
	82	m_Table = NULL;
47e55c2f	83	m_UnicodeInput = m_UnicodeOutput = FALSE;
c958260b VS	84	m_JustCopy = FALSE;
	85	}
	86
	87
	88
	89	bool wxEncodingConverter::Init(wxFontEncoding input_enc, wxFontEncoding output_enc, int method)
	90	{
	91	unsigned i;
	92	wxUint16 in_tbl = NULL, out_tbl = NULL;
	93
	94	if (m_Table) {delete[] m_Table; m_Table = NULL;}
	95
f6bcfd97	96	#if !wxUSE_WCHAR_T
c958260b VS	97	if (input_enc == wxFONTENCODING_UNICODE \|\| output_enc == wxFONTENCODING_UNICODE) return FALSE;
	98	#endif
	99
	100	if (input_enc == output_enc) {m_JustCopy = TRUE; return TRUE;}
03424b1b	101
47e55c2f	102	m_UnicodeOutput = (output_enc == wxFONTENCODING_UNICODE);
c958260b	103	m_JustCopy = FALSE;
03424b1b	104
c958260b VS	105	if (input_enc == wxFONTENCODING_UNICODE)
	106	{
	107	if ((out_tbl = GetEncTable(output_enc)) == NULL) return FALSE;
	108
f6bcfd97 BP	109	m_Table = new tchar[65536];
f6bcfd97 BP	110	for (i = 0; i < 128; i++) m_Table[i] = (tchar)i; // 7bit ASCII
03424b1b	111	for (i = 128; i < 65536; i++) m_Table[i] = (tchar)'?';
c958260b VS	112	// FIXME - this should be character that means `unicode to charset' impossible, not '?'
	113
	114	if (method == wxCONVERT_SUBSTITUTE)
	115	{
	116	for (i = 0; i < encoding_unicode_fallback_count; i++)
f6bcfd97	117	m_Table[encoding_unicode_fallback[i].c] = (tchar) encoding_unicode_fallback[i].s;
c958260b VS	118	}
	119
	120	for (i = 0; i < 128; i++)
f6bcfd97	121	m_Table[out_tbl[i]] = (tchar)(128 + i);
c958260b VS	122
	123	m_UnicodeInput = TRUE;
	124	return TRUE;
	125	}
03424b1b	126
c958260b VS	127	else
	128	{
	129	if ((in_tbl = GetEncTable(input_enc)) == NULL) return FALSE;
	130	if (output_enc != wxFONTENCODING_UNICODE)
	131	if ((out_tbl = GetEncTable(output_enc)) == NULL) return FALSE;
	132
	133	m_UnicodeInput = FALSE;
03424b1b	134
f6bcfd97 BP	135	m_Table = new tchar[256];
f6bcfd97 BP	136	for (i = 0; i < 128; i++) m_Table[i] = (tchar)i; // 7bit ASCII
03424b1b	137
c958260b VS	138	if (output_enc == wxFONTENCODING_UNICODE)
c958260b VS	139	{
f6bcfd97	140	for (i = 0; i < 128; i++) m_Table[128 + i] = (tchar)in_tbl[i];
c958260b VS	141	return TRUE;
c958260b VS	142	}
03424b1b	143	else
c958260b VS	144	{
c958260b VS	145	CharsetItem *rev = BuildReverseTable(out_tbl);
33ac7e6f KB	146	CharsetItem *item;
33ac7e6f KB	147	CharsetItem key;
03424b1b VZ	148
03424b1b VZ	149	for (i = 0; i < 128; i++)
c958260b VS	150	{
	151	key.u = in_tbl[i];
	152	item = (CharsetItem*) bsearch(&key, rev, 128, sizeof(CharsetItem), CompareCharsetItems);
	153	if (item == NULL && method == wxCONVERT_SUBSTITUTE)
03424b1b	154	item = (CharsetItem*) bsearch(&key, encoding_unicode_fallback,
c958260b VS	155	encoding_unicode_fallback_count, sizeof(CharsetItem), CompareCharsetItems);
c958260b VS	156	if (item)
f6bcfd97	157	m_Table[128 + i] = (tchar)item -> c;
c958260b	158	else
33ac7e6f KB	159	#if wxUSE_WCHAR_T
	160	m_Table[128 + i] = (wchar_t)(128 + i);
	161	#else
	162	m_Table[128 + i] = (char)(128 + i);
307fd956	163	#endif
c958260b	164	}
03424b1b	165
c958260b VS	166	delete[] rev;
	167	return TRUE;
	168	}
	169	}
	170	}
	171
	172
47e55c2f	173
f6bcfd97	174	void wxEncodingConverter::Convert(const char* input, char* output)
c958260b	175	{
f6bcfd97 BP	176	wxASSERT_MSG(!m_UnicodeOutput, wxT("You cannot convert to unicode if output is const char*!"));
	177	wxASSERT_MSG(!m_UnicodeInput, wxT("You cannot convert from unicode if input is const char*!"));
	178
	179	const char *i;
	180	char *o;
	181
c958260b VS	182	if (m_JustCopy)
c958260b VS	183	{
f6bcfd97	184	strcpy(output, input);
c958260b VS	185	return;
c958260b VS	186	}
03424b1b	187
307fd956	188	wxCHECK_RET(m_Table != NULL, wxT("You must call wxEncodingConverter::Init() before actually converting!"));
03424b1b	189
f6bcfd97 BP	190	for (i = input, o = output; *i != 0;)
f6bcfd97 BP	191	(o++) = (char)(m_Table[(wxUint8)(i++)]);
c958260b VS	192	*o = 0;
	193	}
	194
	195
f6bcfd97	196	#if wxUSE_WCHAR_T
47e55c2f	197
f6bcfd97	198	void wxEncodingConverter::Convert(const char* input, wchar_t* output)
47e55c2f	199	{
f6bcfd97	200	wxASSERT_MSG(m_UnicodeOutput, wxT("You cannot convert to 8-bit if output is const wchar_t*!"));
47e55c2f VS	201	wxASSERT_MSG(!m_UnicodeInput, wxT("You cannot convert from unicode if input is const char*!"));
	202
	203	const char *i;
f6bcfd97	204	wchar_t *o;
47e55c2f VS	205
	206	if (m_JustCopy)
	207	{
	208	for (i = input, o = output; *i != 0;)
f6bcfd97	209	(o++) = (wchar_t)((i++));
47e55c2f VS	210	*o = 0;
	211	return;
	212	}
03424b1b	213
307fd956	214	wxCHECK_RET(m_Table != NULL, wxT("You must call wxEncodingConverter::Init() before actually converting!"));
03424b1b	215
47e55c2f	216	for (i = input, o = output; *i != 0;)
f6bcfd97	217	(o++) = (wchar_t)(m_Table[(wxUint8)(i++)]);
47e55c2f VS	218	*o = 0;
	219	}
	220
	221
	222
f6bcfd97	223	void wxEncodingConverter::Convert(const wchar_t* input, char* output)
47e55c2f VS	224	{
47e55c2f VS	225	wxASSERT_MSG(!m_UnicodeOutput, wxT("You cannot convert to unicode if output is const char*!"));
f6bcfd97	226	wxASSERT_MSG(m_UnicodeInput, wxT("You cannot convert from 8-bit if input is const wchar_t*!"));
47e55c2f	227
f6bcfd97	228	const wchar_t *i;
47e55c2f VS	229	char *o;
	230
	231	if (m_JustCopy)
	232	{
	233	for (i = input, o = output; *i != 0;)
	234	(o++) = (char)((i++));
	235	*o = 0;
	236	return;
	237	}
03424b1b	238
307fd956	239	wxCHECK_RET(m_Table != NULL, wxT("You must call wxEncodingConverter::Init() before actually converting!"));
03424b1b	240
f6bcfd97 BP	241	for (i = input, o = output; *i != 0;)
f6bcfd97 BP	242	(o++) = (char)(m_Table[(wxUint16)(i++)]);
47e55c2f VS	243	*o = 0;
	244	}
	245
	246
	247
f6bcfd97	248	void wxEncodingConverter::Convert(const wchar_t* input, wchar_t* output)
47e55c2f	249	{
f6bcfd97 BP	250	wxASSERT_MSG(m_UnicodeOutput, wxT("You cannot convert to 8-bit if output is const wchar_t*!"));
f6bcfd97 BP	251	wxASSERT_MSG(m_UnicodeInput, wxT("You cannot convert from 8-bit if input is const wchar_t*!"));
47e55c2f	252
f6bcfd97 BP	253	const wchar_t *i;
f6bcfd97 BP	254	wchar_t *o;
47e55c2f VS	255
	256	if (m_JustCopy)
	257	{
f6bcfd97 BP	258	// wcscpy() is not guaranteed to exist
	259	for (i = input, o = output; *i != 0;)
	260	(o++) = ((i++));
	261	*o = 0;
47e55c2f VS	262	return;
47e55c2f VS	263	}
03424b1b	264
307fd956	265	wxCHECK_RET(m_Table != NULL, wxT("You must call wxEncodingConverter::Init() before actually converting!"));
03424b1b	266
47e55c2f	267	for (i = input, o = output; *i != 0;)
f6bcfd97	268	(o++) = (wchar_t)(m_Table[(wxUint8)(i++)]);
47e55c2f VS	269	*o = 0;
	270	}
	271
f6bcfd97	272	#endif // wxUSE_WCHAR_T
47e55c2f	273
c958260b VS	274
	275	wxString wxEncodingConverter::Convert(const wxString& input)
	276	{
	277	if (m_JustCopy) return input;
03424b1b	278
c958260b VS	279	wxString s;
c958260b VS	280	const wxChar *i;
03424b1b	281
4ccae30a VZ	282	wxCHECK_MSG(m_Table != NULL, s,
4ccae30a VZ	283	wxT("You must call wxEncodingConverter::Init() before actually converting!"));
03424b1b	284
c958260b	285	if (m_UnicodeInput)
307fd956	286	{
c958260b VS	287	for (i = input.c_str(); *i != 0; i++)
c958260b VS	288	s << (wxChar)(m_Table[(wxUint16)*i]);
307fd956	289	}
c958260b	290	else
307fd956	291	{
c958260b VS	292	for (i = input.c_str(); *i != 0; i++)
c958260b VS	293	s << (wxChar)(m_Table[(wxUint8)*i]);
307fd956 VZ	294	}
307fd956 VZ	295
c958260b VS	296	return s;
	297	}
	298
	299
	300
	301
47e55c2f VS	302
	303
	304
c958260b	305	// Following tables describe classes of encoding equivalence.
03424b1b	306	//
c958260b VS	307
	308	#define STOP wxFONTENCODING_SYSTEM
	309
	310	#define NUM_OF_PLATFORMS 4 /must conform to enum wxPLATFORM_XXXX !!!/
617eb021	311	#define ENC_PER_PLATFORM 5
c958260b	312	// max no. of encodings for one language used on one platform
617eb021	313	// Anybody thinks 5 is not enough? ;-)
c958260b	314
03424b1b	315	static wxFontEncoding
c958260b VS	316	EquivalentEncodings[][NUM_OF_PLATFORMS][ENC_PER_PLATFORM+1] = {
c958260b VS	317
47e55c2f VS	318	// * Please put more common encodings as first! *
47e55c2f VS	319
03424b1b	320	// Western European
c958260b VS	321	{
	322	/* unix */ {wxFONTENCODING_ISO8859_1, wxFONTENCODING_ISO8859_15, STOP},
	323	/* windows */ {wxFONTENCODING_CP1252, STOP},
	324	/* os2 */ {STOP},
03424b1b	325	/* mac */ {STOP}
c958260b VS	326	},
c958260b VS	327
47e55c2f	328	// Central European
c958260b VS	329	{
	330	/* unix */ {wxFONTENCODING_ISO8859_2, STOP},
	331	/* windows */ {wxFONTENCODING_CP1250, STOP},
	332	/* os2 */ {STOP},
03424b1b	333	/* mac */ {STOP}
c958260b	334	},
03424b1b	335
47e55c2f VS	336	// Baltic
47e55c2f VS	337	{
03424b1b	338	/* unix */ {wxFONTENCODING_ISO8859_13, wxFONTENCODING_ISO8859_4, STOP},
47e55c2f VS	339	/* windows */ {wxFONTENCODING_CP1257, STOP},
47e55c2f VS	340	/* os2 */ {STOP},
03424b1b	341	/* mac */ {STOP}
47e55c2f VS	342	},
	343
	344	// Hebrew
	345	{
	346	/* unix */ {wxFONTENCODING_ISO8859_8, STOP},
	347	/* windows */ {wxFONTENCODING_CP1255, STOP},
	348	/* os2 */ {STOP},
03424b1b	349	/* mac */ {STOP}
47e55c2f VS	350	},
	351
	352	// Greek
	353	{
	354	/* unix */ {wxFONTENCODING_ISO8859_7, STOP},
	355	/* windows */ {wxFONTENCODING_CP1253, STOP},
	356	/* os2 */ {STOP},
03424b1b	357	/* mac */ {STOP}
47e55c2f VS	358	},
	359
	360	// Arabic
	361	{
	362	/* unix */ {wxFONTENCODING_ISO8859_6, STOP},
	363	/* windows */ {wxFONTENCODING_CP1256, STOP},
	364	/* os2 */ {STOP},
03424b1b	365	/* mac */ {STOP}
47e55c2f VS	366	},
	367
	368	// Turkish
	369	{
	370	/* unix */ {wxFONTENCODING_ISO8859_9, STOP},
	371	/* windows */ {wxFONTENCODING_CP1254, STOP},
	372	/* os2 */ {STOP},
03424b1b	373	/* mac */ {STOP}
47e55c2f VS	374	},
	375
	376	// Cyrillic
3b61656e VS	377	{
3b61656e VS	378	/* unix */ {wxFONTENCODING_KOI8, wxFONTENCODING_ISO8859_5, STOP},
47e55c2f VS	379	/* windows */ {wxFONTENCODING_CP1251, STOP},
47e55c2f VS	380	/* os2 */ {STOP},
03424b1b	381	/* mac */ {STOP}
47e55c2f	382	},
c958260b VS	383
	384	{{STOP},{STOP},{STOP},{STOP}} /* Terminator */
	385	/* no, _not_ Arnold! */
	386	};
	387
	388
	389
	390
	391	wxFontEncodingArray wxEncodingConverter::GetPlatformEquivalents(wxFontEncoding enc, int platform)
	392	{
	393	if (platform == wxPLATFORM_CURRENT)
	394	{
	395	#if defined(__WXMSW__)
	396	platform = wxPLATFORM_WINDOWS;
	397	#elif defined(__WXGTK__) \|\| defined(__WXMOTIF__)
	398	platform = wxPLATFORM_UNIX;
	399	#elif defined(__WXOS2__)
	400	platform = wxPLATFORM_OS2;
	401	#elif defined(__WXMAC__)
	402	platform = wxPLATFORM_MAC;
	403	#endif
	404	}
03424b1b	405
c958260b VS	406	int i, clas, e ;
	407	wxFontEncoding *f;
	408	wxFontEncodingArray arr;
	409
	410	clas = 0;
	411	while (EquivalentEncodings[clas][0][0] != STOP)
	412	{
	413	for (i = 0; i < NUM_OF_PLATFORMS; i++)
	414	for (e = 0; EquivalentEncodings[clas][i][e] != STOP; e++)
	415	if (EquivalentEncodings[clas][i][e] == enc)
	416	{
47e55c2f VS	417	for (f = EquivalentEncodings[clas][platform]; *f != STOP; f++)
	418	if (*f == enc) arr.Add(enc);
	419	for (f = EquivalentEncodings[clas][platform]; *f != STOP; f++)
c958260b	420	if (arr.Index(f) == wxNOT_FOUND) arr.Add(f);
03424b1b	421	i = NUM_OF_PLATFORMS/hack/; break;
c958260b VS	422	}
	423	clas++;
	424	}
03424b1b	425
c958260b VS	426	return arr;
	427	}
	428
	429
	430
	431	wxFontEncodingArray wxEncodingConverter::GetAllEquivalents(wxFontEncoding enc)
	432	{
	433	int i, clas, e, j ;
	434	wxFontEncoding *f;
	435	wxFontEncodingArray arr;
03424b1b	436
47e55c2f	437	arr = GetPlatformEquivalents(enc); // we want them to be first items in array
c958260b VS	438
	439	clas = 0;
	440	while (EquivalentEncodings[clas][0][0] != STOP)
	441	{
	442	for (i = 0; i < NUM_OF_PLATFORMS; i++)
	443	for (e = 0; EquivalentEncodings[clas][i][e] != STOP; e++)
	444	if (EquivalentEncodings[clas][i][e] == enc)
	445	{
	446	for (j = 0; j < NUM_OF_PLATFORMS; j++)
03424b1b VZ	447	for (f = EquivalentEncodings[clas][j]; *f != STOP; f++)
	448	if (arr.Index(f) == wxNOT_FOUND) arr.Add(f);
	449	i = NUM_OF_PLATFORMS/hack/; break;
c958260b VS	450	}
	451	clas++;
	452	}
03424b1b	453
c958260b VS	454	return arr;
c958260b VS	455	}
1e6feb95 VZ	456
1e6feb95 VZ	457	#endif // wxUSE_FONTMAP