src/msw/fontutil.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/fontutil.cpp
   3 // Purpose:     font-related helper functions for wxMSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     05.11.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "fontutil.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/string.h"
  33     #include "wx/log.h"
  34     #include "wx/intl.h"
  35 #endif //WX_PRECOMP
  36
  37 #include "wx/msw/private.h"
  38
  39 #include "wx/fontutil.h"
  40 #include "wx/fontmap.h"
  41
  42 #include "wx/tokenzr.h"
  43
  44 // for MSVC5 and old w32api
  45 #ifndef HANGUL_CHARSET
  46 #    define HANGUL_CHARSET  129
  47 #endif
  48
  49 // ============================================================================
  50 // implementation
  51 // ============================================================================
  52
  53 // ----------------------------------------------------------------------------
  54 // wxNativeEncodingInfo
  55 // ----------------------------------------------------------------------------
  56
  57 // convert to/from the string representation: format is
  58 //      encodingid;facename[;charset]
  59
  60 bool wxNativeEncodingInfo::FromString(const wxString& s)
  61 {
  62     wxStringTokenizer tokenizer(s, _T(";"));
  63
  64     wxString encid = tokenizer.GetNextToken();
  65     long enc;
  66     if ( !encid.ToLong(&enc) )
  67         return FALSE;
  68     encoding = (wxFontEncoding)enc;
  69
  70     facename = tokenizer.GetNextToken();
  71
  72     wxString tmp = tokenizer.GetNextToken();
  73     if ( tmp.empty() )
  74     {
  75         // default charset: but don't use DEFAULT_CHARSET here because it might
  76         // be different from the machine on which the file we had read this
  77         // encoding desc from was created
  78         charset = ANSI_CHARSET;
  79     }
  80     else
  81     {
  82         if ( wxSscanf(tmp, _T("%u"), &charset) != 1 )
  83         {
  84             // should be a number!
  85             return FALSE;
  86         }
  87     }
  88
  89     return TRUE;
  90 }
  91
  92 wxString wxNativeEncodingInfo::ToString() const
  93 {
  94     wxString s;
  95
  96     s << (long)encoding << _T(';') << facename;
  97
  98     // ANSI_CHARSET is assumed anyhow
  99     if ( charset != ANSI_CHARSET )
 100     {
 101          s << _T(';') << charset;
 102     }
 103
 104     return s;
 105 }
 106
 107 // ----------------------------------------------------------------------------
 108 // helper functions
 109 // ----------------------------------------------------------------------------
 110
 111 bool wxGetNativeFontEncoding(wxFontEncoding encoding,
 112                              wxNativeEncodingInfo *info)
 113 {
 114     wxCHECK_MSG( info, FALSE, _T("bad pointer in wxGetNativeFontEncoding") );
 115
 116     if ( encoding == wxFONTENCODING_DEFAULT )
 117     {
 118         encoding = wxFont::GetDefaultEncoding();
 119     }
 120
 121     extern long wxEncodingToCharset(wxFontEncoding encoding);
 122     info->charset = wxEncodingToCharset(encoding);
 123     if ( info->charset == -1 )
 124         return FALSE;
 125
 126     info->encoding = encoding;
 127
 128     return TRUE;
 129 }
 130
 131 bool wxTestFontEncoding(const wxNativeEncodingInfo& info)
 132 {
 133     // try to create such font
 134     LOGFONT lf;
 135     wxZeroMemory(lf);       // all default values
 136
 137     lf.lfCharSet = info.charset;
 138     wxStrncpy(lf.lfFaceName, info.facename, WXSIZEOF(lf.lfFaceName));
 139
 140     HFONT hfont = ::CreateFontIndirect(&lf);
 141     if ( !hfont )
 142     {
 143         // no such font
 144         return FALSE;
 145     }
 146
 147     ::DeleteObject((HGDIOBJ)hfont);
 148
 149     return TRUE;
 150 }
 151
 152 // ----------------------------------------------------------------------------
 153 // wxFontEncoding <-> CHARSET_XXX
 154 // ----------------------------------------------------------------------------
 155
 156 wxFontEncoding wxGetFontEncFromCharSet(int cs)
 157 {
 158     wxFontEncoding fontEncoding;
 159
 160     switch ( cs )
 161     {
 162         default:
 163             // assume the system charset
 164             fontEncoding = wxFONTENCODING_SYSTEM;
 165             break;
 166
 167         case ANSI_CHARSET:
 168             fontEncoding = wxFONTENCODING_CP1252;
 169             break;
 170
 171 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 172         case EASTEUROPE_CHARSET:
 173             fontEncoding = wxFONTENCODING_CP1250;
 174             break;
 175
 176         case BALTIC_CHARSET:
 177             fontEncoding = wxFONTENCODING_CP1257;
 178             break;
 179
 180         case RUSSIAN_CHARSET:
 181             fontEncoding = wxFONTENCODING_CP1251;
 182             break;
 183
 184         case ARABIC_CHARSET:
 185             fontEncoding = wxFONTENCODING_CP1256;
 186             break;
 187
 188         case GREEK_CHARSET:
 189             fontEncoding = wxFONTENCODING_CP1253;
 190             break;
 191
 192         case HEBREW_CHARSET:
 193             fontEncoding = wxFONTENCODING_CP1255;
 194             break;
 195
 196         case TURKISH_CHARSET:
 197             fontEncoding = wxFONTENCODING_CP1254;
 198             break;
 199
 200         case THAI_CHARSET:
 201             fontEncoding = wxFONTENCODING_CP437;
 202             break;
 203
 204         case SHIFTJIS_CHARSET:
 205             fontEncoding = wxFONTENCODING_CP932;
 206             break;
 207
 208         case GB2312_CHARSET:
 209             fontEncoding = wxFONTENCODING_CP936;
 210             break;
 211
 212         case HANGUL_CHARSET:
 213             fontEncoding = wxFONTENCODING_CP949;
 214             break;
 215
 216         case CHINESEBIG5_CHARSET:
 217             fontEncoding = wxFONTENCODING_CP950;
 218             break;
 219
 220 #endif // Win32
 221
 222         case OEM_CHARSET:
 223             fontEncoding = wxFONTENCODING_CP437;
 224             break;
 225     }
 226
 227     return fontEncoding;
 228 }
 229
 230 // ----------------------------------------------------------------------------
 231 // wxFont <-> LOGFONT conversion
 232 // ----------------------------------------------------------------------------
 233
 234 void wxFillLogFont(LOGFONT *logFont, const wxFont *font)
 235 {
 236     // maybe we already have LOGFONT for this font?
 237     wxNativeFontInfo *fontinfo = font->GetNativeFontInfo();
 238     if ( !fontinfo )
 239     {
 240         // use wxNativeFontInfo methods to build a LOGFONT for this font
 241         fontinfo = new wxNativeFontInfo;
 242
 243         // translate all font parameters
 244         fontinfo->SetStyle((wxFontStyle)font->GetStyle());
 245         fontinfo->SetWeight((wxFontWeight)font->GetWeight());
 246         fontinfo->SetUnderlined(font->GetUnderlined());
 247         fontinfo->SetPointSize(font->GetPointSize());
 248
 249         // set the family/facename
 250         fontinfo->SetFamily((wxFontFamily)font->GetFamily());
 251         wxString facename = font->GetFaceName();
 252         if ( !facename.empty() )
 253         {
 254             fontinfo->SetFaceName(facename);
 255         }
 256
 257         // deal with encoding now (it may override the font family and facename
 258         // so do it after setting them)
 259         fontinfo->SetEncoding(font->GetEncoding());
 260     }
 261
 262     // transfer all the data to LOGFONT
 263     *logFont = fontinfo->lf;
 264
 265     delete fontinfo;
 266 }
 267
 268 wxFont wxCreateFontFromLogFont(const LOGFONT *logFont)
 269 {
 270     wxNativeFontInfo info;
 271
 272     info.lf = *logFont;
 273
 274     return wxFont(info);
 275 }
 276