src/os2/fontutil.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/fontutil.cpp
   3 // Purpose:     font-related helper functions for wxMSW
   4 // Author:      Modified by David Webster for OS/2
   5 // Modified by:
   6 // Created:     01.03.00
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11 #define DEBUG_PRINTF(NAME)   { static int raz=0; \
  12   printf( #NAME " %i\n",raz); fflush(stdout);       \
  13    raz++;                                        \
  14  }
  15
  16 // ============================================================================
  17 // declarations
  18 // ============================================================================
  19
  20 // ----------------------------------------------------------------------------
  21 // headers
  22 // ----------------------------------------------------------------------------
  23
  24 #ifdef __GNUG__
  25     #pragma implementation "fontutil.h"
  26 #endif
  27
  28 // For compilers that support precompilation, includes "wx.h".
  29 #include "wx/wxprec.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/string.h"
  34     #include "wx/log.h"
  35     #include "wx/intl.h"
  36 #endif //WX_PRECOMP
  37
  38 #include "wx/os2/private.h"
  39
  40 #include "wx/fontutil.h"
  41 #include "wx/fontmap.h"
  42
  43 #include "wx/tokenzr.h"
  44
  45 // ============================================================================
  46 // implementation
  47 // ============================================================================
  48
  49 // ----------------------------------------------------------------------------
  50 // wxNativeEncodingInfo
  51 // ----------------------------------------------------------------------------
  52
  53 // convert to/from the string representation: format is
  54 //      encodingid;facename[;charset]
  55
  56 bool wxNativeEncodingInfo::FromString(
  57   const wxString&                   rsStr
  58 )
  59 {
  60     wxStringTokenizer               vTokenizer(rsStr, _T(";"));
  61     wxString                        sEncid = vTokenizer.GetNextToken();
  62     long                            lEnc;
  63
  64     if (!sEncid.ToLong(&lEnc))
  65         return FALSE;
  66     encoding = (wxFontEncoding)lEnc;
  67     facename = vTokenizer.GetNextToken();
  68     if (!facename)
  69         return FALSE;
  70
  71     wxString                        sTmp = vTokenizer.GetNextToken();
  72
  73     if (!sTmp)
  74     {
  75         charset = 850;
  76     }
  77     else
  78     {
  79         if ( wxSscanf(sTmp, _T("%u"), &charset) != 1 )
  80         {
  81             // should be a number!
  82             return FALSE;
  83         }
  84     }
  85     return TRUE;
  86 } // end of wxNativeEncodingInfo::FromString
  87
  88 wxString wxNativeEncodingInfo::ToString() const
  89 {
  90     wxString                        sStr;
  91
  92     sStr << (long)encoding << _T(';') << facename;
  93
  94     if (charset != 850)
  95     {
  96         sStr << _T(';') << charset;
  97     }
  98     return sStr;
  99 } // end of wxNativeEncodingInfo::ToString
 100
 101 // ----------------------------------------------------------------------------
 102 // helper functions
 103 // ----------------------------------------------------------------------------
 104
 105 bool wxGetNativeFontEncoding(
 106   wxFontEncoding                    vEncoding
 107 , wxNativeEncodingInfo*             pInfo
 108 )
 109 {
 110     wxCHECK_MSG(pInfo, FALSE, _T("bad pointer in wxGetNativeFontEncoding") );
 111     if (vEncoding == wxFONTENCODING_DEFAULT)
 112     {
 113         vEncoding = wxFont::GetDefaultEncoding();
 114     }
 115     switch (vEncoding)
 116     {
 117         case wxFONTENCODING_ISO8859_1:
 118         case wxFONTENCODING_ISO8859_15:
 119         case wxFONTENCODING_CP1250:
 120             pInfo->charset = 1250;
 121             break;
 122
 123         case wxFONTENCODING_ISO8859_2:
 124         case wxFONTENCODING_CP1252:
 125             pInfo->charset = 1252;
 126             break;
 127
 128         case wxFONTENCODING_ISO8859_4:
 129         case wxFONTENCODING_ISO8859_10:
 130             pInfo->charset = 921; // what is baltic?
 131             break;
 132
 133         case wxFONTENCODING_ISO8859_5:
 134         case wxFONTENCODING_CP1251:
 135             pInfo->charset = 1251;
 136             break;
 137
 138         case wxFONTENCODING_ISO8859_6:
 139             pInfo->charset = 864;
 140             break;
 141
 142         case wxFONTENCODING_ISO8859_7:
 143             pInfo->charset = 869;
 144             break;
 145
 146         case wxFONTENCODING_ISO8859_8:
 147             pInfo->charset = 862;
 148             break;
 149
 150         case wxFONTENCODING_ISO8859_9:
 151             pInfo->charset = 857;
 152             break;
 153
 154         case wxFONTENCODING_ISO8859_11:
 155             pInfo->charset = 874; // what is thai
 156             break;
 157
 158         case wxFONTENCODING_CP437:
 159             pInfo->charset = 437;
 160             break;
 161
 162         default:
 163             wxFAIL_MSG(wxT("unsupported encoding"));
 164             // fall through
 165
 166         case wxFONTENCODING_SYSTEM:
 167             pInfo->charset = 850;
 168             break;
 169     }
 170     return TRUE;
 171 } // end of wxGetNativeFontEncoding
 172
 173 wxFontEncoding wxGetFontEncFromCharSet(
 174   int                               nCharSet
 175 )
 176 {
 177     wxFontEncoding                  eFontEncoding;
 178
 179     switch (nCharSet)
 180     {
 181         default:
 182         case 1250:
 183             eFontEncoding = wxFONTENCODING_CP1250;
 184             break;
 185
 186         case 1252:
 187             eFontEncoding = wxFONTENCODING_CP1252;
 188             break;
 189
 190         case 921:
 191             eFontEncoding = wxFONTENCODING_ISO8859_4;
 192             break;
 193
 194         case 1251:
 195             eFontEncoding = wxFONTENCODING_CP1251;
 196             break;
 197
 198         case 864:
 199             eFontEncoding = wxFONTENCODING_ISO8859_6;
 200             break;
 201
 202         case 869:
 203             eFontEncoding = wxFONTENCODING_ISO8859_7;
 204             break;
 205
 206         case 862:
 207             eFontEncoding = wxFONTENCODING_ISO8859_8;
 208             break;
 209
 210         case 857:
 211             eFontEncoding = wxFONTENCODING_ISO8859_9;
 212             break;
 213
 214         case 874:
 215             eFontEncoding = wxFONTENCODING_ISO8859_11;
 216             break;
 217
 218         case 437:
 219             eFontEncoding = wxFONTENCODING_CP437;
 220             break;
 221     }
 222     return eFontEncoding;
 223 } // end of wxGetNativeFontEncoding
 224
 225 bool wxTestFontEncoding(
 226   const wxNativeEncodingInfo&       rInfo
 227 )
 228 {
 229     FATTRS                          vLogFont;
 230     HPS                             hPS;
 231
 232     hPS = ::WinGetPS(HWND_DESKTOP);
 233
 234     memset(&vLogFont, '\0', sizeof(FATTRS));           // all default values
 235     vLogFont.usRecordLength = sizeof(FATTRS);
 236     vLogFont.usCodePage = rInfo.charset;
 237     vLogFont.lMaxBaselineExt = 0L;                    // Outline fonts should use 0
 238     vLogFont.lAveCharWidth = 0L;                      // Outline fonts should use 0
 239     vLogFont.fsFontUse = FATTR_FONTUSE_OUTLINE |      // only outline fonts allowed
 240                          FATTR_FONTUSE_TRANSFORMABLE; // may be transformed
 241
 242     strncpy(vLogFont.szFacename, rInfo.facename.c_str(), sizeof(vLogFont.szFacename));
 243
 244     if (!::GpiCreateLogFont( hPS
 245                             ,NULL
 246                             ,1L
 247                             ,&vLogFont
 248                            ))
 249     {
 250         ::WinReleasePS(hPS);
 251         return FALSE;
 252     }
 253     ::WinReleasePS(hPS);
 254     return TRUE;
 255 } // end of wxTestFontEncoding
 256
 257 // ----------------------------------------------------------------------------
 258 // wxFont <-> LOGFONT conversion
 259 // ----------------------------------------------------------------------------
 260
 261 void wxFillLogFont(
 262   LOGFONT*                          pFattrs  // OS2 GPI FATTRS
 263 , PFACENAMEDESC                     pFaceName
 264 , HPS*                              phPS
 265 , bool*                             pbInternalPS
 266 , long*                             pflId
 267 , wxString&                         sFaceName
 268 , wxFont*                           pFont
 269 )
 270 {
 271     LONG                            lNumFonts = 0L;       // For system font count
 272     ERRORID                         vError;               // For logging API errors
 273     LONG                            lTemp = 0L;
 274     bool                            bInternalPS = FALSE;  // if we have to create one
 275     PFONTMETRICS                    pFM = NULL;
 276
 277     //
 278     // Initial house cleaning to free data buffers and ensure we have a
 279     // functional PS to work with
 280     //
 281     if (!*phPS)
 282     {
 283         *phPS = ::WinGetPS(HWND_DESKTOP);
 284         bInternalPS = TRUE;
 285     }
 286
 287     //
 288     // Determine the number of fonts.
 289     //
 290     if((lNumFonts = ::GpiQueryFonts( *phPS
 291                                     ,QF_PUBLIC
 292                                     ,NULL
 293                                     ,&lTemp
 294                                     ,(LONG) sizeof(FONTMETRICS)
 295                                     ,NULL
 296                                    )) < 0L)
 297     {
 298         ERRORID                     vError;
 299         wxString                    sError;
 300
 301         vError = ::WinGetLastError(wxGetInstance());
 302         sError = wxPMErrorToStr(vError);
 303         return;
 304     }
 305
 306     //
 307     // Allocate space for the font metrics.
 308     //
 309     pFM = new FONTMETRICS[lNumFonts + 1];
 310
 311     //
 312     // Retrieve the font metrics.
 313     //
 314     lTemp = lNumFonts;
 315     lTemp = ::GpiQueryFonts( *phPS
 316                             ,QF_PUBLIC
 317                             ,NULL
 318                             ,&lTemp
 319                             ,(LONG) sizeof(FONTMETRICS)
 320                             ,pFM
 321                            );
 322     pFont->SetFM( pFM
 323                  ,(int)lNumFonts
 324                 );
 325
 326     wxString                        sVals;
 327
 328     //
 329     // For debugging, delete later
 330     //
 331     for (int i = 0; i < lNumFonts; i++)
 332     {
 333          sVals << "Face: " << pFM[i].szFacename
 334                << "Family: " << pFM[i].szFamilyname
 335                << " PointSize: " << pFM[i].lEmHeight
 336                << " Height: " << pFM[i].lXHeight
 337                ;
 338          sVals = "";
 339     }
 340
 341     //
 342     // Initialize FATTR and FACENAMEDESC
 343     //
 344     pFattrs->usRecordLength = sizeof(FATTRS);
 345     pFattrs->fsFontUse = FATTR_FONTUSE_OUTLINE |       // only outline fonts allowed
 346                           FATTR_FONTUSE_TRANSFORMABLE;  // may be transformed
 347     pFattrs->fsType = 0;
 348     pFattrs->lMaxBaselineExt = pFattrs->lAveCharWidth = 0;
 349     pFattrs->idRegistry = 0;
 350     pFattrs->lMatch = 0;
 351
 352     pFaceName->usSize = sizeof(FACENAMEDESC);
 353     pFaceName->usWidthClass = FWIDTH_NORMAL;
 354     pFaceName->usReserved = 0;
 355     pFaceName->flOptions = 0;
 356
 357     //
 358     // This does the actual selection of fonts
 359     //
 360     wxOS2SelectMatchingFontByName( pFattrs
 361                                   ,pFaceName
 362                                   ,pFM
 363                                   ,(int)lNumFonts
 364                                   ,pFont
 365                                  );
 366     //
 367     // We should now have the correct FATTRS set with the selected
 368     // font, so now we need to generate an ID
 369     //
 370     long                            lNumLids = ::GpiQueryNumberSetIds(*phPS);
 371     long                            lGpiError;
 372
 373     if(lNumLids )
 374     {
 375         long                        alTypes[255];
 376         STR8                        azNames[255];
 377         long                        alIds[255];
 378
 379         if(!::GpiQuerySetIds( *phPS
 380                              ,lNumLids
 381                              ,alTypes
 382                              ,azNames
 383                              ,alIds
 384                             ))
 385         {
 386             if (bInternalPS)
 387                 ::WinReleasePS(*phPS);
 388             return;
 389         }
 390
 391         for(unsigned long LCNum = 0; LCNum < lNumLids; LCNum++)
 392             if(alIds[LCNum] == *pflId)
 393                ++*pflId;
 394         if(*pflId > 254)  // wow, no id available!
 395         {
 396             if (bInternalPS)
 397                ::WinReleasePS(*phPS);
 398            return;
 399         }
 400     }
 401     else
 402         *pflId = 1L;
 403     //
 404     // Release and delete the current font
 405     //
 406     ::GpiSetCharSet(*phPS, LCID_DEFAULT);/* release the font before deleting */
 407     ::GpiDeleteSetId(*phPS, 1L);         /* delete the logical font          */
 408
 409     //
 410     // Now build a facestring
 411     //
 412     char                            zFacename[128];
 413
 414     strcpy(zFacename, pFattrs->szFacename);
 415
 416     if(::GpiQueryFaceString( *phPS
 417                             ,zFacename
 418                             ,pFaceName
 419                             ,FACESIZE
 420                             ,pFattrs->szFacename
 421                            ) == GPI_ERROR)
 422     {
 423         vError = ::WinGetLastError(vHabmain);
 424     }
 425     sFaceName = zFacename;
 426     *pbInternalPS = bInternalPS;
 427
 428     //
 429     // That's it, we now have everything we need to actually create the font
 430     //
 431 } // end of wxFillLogFont
 432
 433 void wxOS2SelectMatchingFontByName(
 434   PFATTRS                           pFattrs
 435 , PFACENAMEDESC                     pFaceName
 436 , PFONTMETRICS                      pFM
 437 , int                               nNumFonts
 438 , const wxFont*                     pFont
 439 )
 440 {
 441     int                             i;
 442     int                             nDiff0;
 443     int                             nPointSize;
 444     int                             nDiff;
 445     int                             nIs;
 446     int                             nMinDiff;
 447     int                             nMinDiff0;
 448     int                             nApirc;
 449     int                             anDiff[16];
 450     int                             anMinDiff[16];
 451     int                             nIndex = 0;
 452     STR8                            zFn;
 453     char                            zFontFaceName[FACESIZE];
 454     wxString                        sFaceName;
 455     USHORT                          usWeightClass;
 456     int                             fsSelection = 0;
 457
 458     nMinDiff0 = 0xf000;
 459     for(i = 0;i < 16; i++)
 460         anMinDiff[i] = nMinDiff0;
 461
 462     switch (pFont->GetFamily())
 463     {
 464         case wxSCRIPT:
 465             sFaceName = wxT("Script");
 466             break;
 467
 468         case wxDECORATIVE:
 469         case wxROMAN:
 470             sFaceName = wxT("Tms Rmn");
 471             break;
 472
 473         case wxTELETYPE:
 474             sFaceName = wxT("Courier") ;
 475             break;
 476
 477         case wxMODERN:
 478             sFaceName = wxT("System VIO") ;
 479             break;
 480
 481         case wxSWISS:
 482             sFaceName = wxT("Helv") ;
 483             break;
 484
 485         case wxDEFAULT:
 486         default:
 487             sFaceName = wxT("System VIO") ;
 488     }
 489
 490     switch (pFont->GetWeight())
 491     {
 492         default:
 493             wxFAIL_MSG(_T("unknown font weight"));
 494             // fall through
 495             usWeightClass = FWEIGHT_DONT_CARE;
 496             break;
 497
 498         case wxNORMAL:
 499             usWeightClass = FWEIGHT_NORMAL;
 500             break;
 501
 502         case wxLIGHT:
 503             usWeightClass = FWEIGHT_LIGHT;
 504             break;
 505
 506         case wxBOLD:
 507             usWeightClass = FWEIGHT_BOLD;
 508             break;
 509
 510          case wxFONTWEIGHT_MAX:
 511             usWeightClass = FWEIGHT_ULTRA_BOLD;
 512             break;
 513     }
 514     pFaceName->usWeightClass = usWeightClass;
 515
 516     switch (pFont->GetStyle())
 517     {
 518         case wxITALIC:
 519         case wxSLANT:
 520             fsSelection = FM_SEL_ITALIC;
 521             pFaceName->flOptions = FTYPE_ITALIC;
 522             break;
 523
 524         default:
 525             wxFAIL_MSG(wxT("unknown font slant"));
 526             // fall through
 527
 528         case wxNORMAL:
 529             fsSelection  = 0;
 530             break;
 531     }
 532
 533     wxStrncpy(zFontFaceName, sFaceName.c_str(), WXSIZEOF(zFontFaceName));
 534     nPointSize = pFont->GetPointSize();
 535
 536     //
 537     // Matching logic to find the right FM struct
 538     //
 539     nIndex = 0;
 540     for(i = 0, nIs = 0; i < nNumFonts; i++)
 541     {
 542         int                         nEmHeight = 0;
 543         int                         nXHeight = 0;
 544
 545         anDiff[0] = wxGpiStrcmp(pFM[i].szFamilyname, zFontFaceName);
 546         anDiff[1] = abs(pFM[i].lEmHeight - nPointSize);
 547         anDiff[2] = abs(pFM[i].usWeightClass -  usWeightClass);
 548         anDiff[3] = abs((pFM[i].fsSelection & 0x2f) -  fsSelection);
 549         if(anDiff[0] == 0)
 550         {
 551             nEmHeight = (int)pFM[i].lEmHeight;
 552             nXHeight  =(int)pFM[i].lXHeight;
 553             if( (nIs & 0x01) == 0)
 554             {
 555                 nIs = 1;
 556                 nIndex = i;
 557                 anMinDiff[1] = anDiff[1];
 558                 anMinDiff[2] = anDiff[2];
 559                 anMinDiff[3] = anDiff[3];
 560             }
 561             else if(anDiff[3] < anMinDiff[3])
 562             {
 563                 nIndex = i;
 564                 anMinDiff[3] = anDiff[3];
 565             }
 566             else if(anDiff[2] < anMinDiff[2])
 567             {
 568                 nIndex = i;
 569                 anMinDiff[2] = anDiff[2];
 570             }
 571             else if(anDiff[1] < anMinDiff[1])
 572             {
 573                 nIndex = i;
 574                 anMinDiff[1] = anDiff[1];
 575             }
 576             anMinDiff[0] = 0;
 577         }
 578         else if(anDiff[0] < anMinDiff[0])
 579         {
 580               nIs = 2;
 581               nIndex = i;
 582               anMinDiff[3] = anDiff[3];
 583               anMinDiff[2] = anDiff[2];
 584               anMinDiff[1] = anDiff[1];
 585               anMinDiff[0] = anDiff[0];
 586         }
 587         else if(anDiff[0] == anMinDiff[0])
 588         {
 589             if(anDiff[3] < anMinDiff[3])
 590             {
 591                 nIndex = i;
 592                 anMinDiff[3] = anDiff[3];
 593                 nIs = 2;
 594             }
 595             else if(anDiff[2] < anMinDiff[2])
 596             {
 597                 nIndex = i;
 598                 anMinDiff[2] = anDiff[2];
 599                 nIs = 2;
 600             }
 601             else if(anDiff[1] < anMinDiff[1])
 602             {
 603                 nIndex = i;
 604                 anMinDiff[1] = anDiff[1];
 605                 nIs = 2;
 606             }
 607         }
 608     }
 609
 610     //
 611     // Fill in the FATTRS with the best match from FONTMETRICS
 612     //
 613     pFattrs->usRecordLength = sizeof(FATTRS);            // sets size of structure
 614     pFattrs->fsSelection    = pFM[nIndex].fsSelection; // uses default selection
 615     pFattrs->lMatch         = pFM[nIndex].lMatch;      // force match
 616     pFattrs->idRegistry     = pFM[nIndex].idRegistry;  // uses default registry
 617     pFattrs->usCodePage     = pFM[nIndex].usCodePage;  // code-page
 618     pFattrs->lMaxBaselineExt = 0;   // OUTLINE fonts need this set to 0 as they use other attributes to match
 619     pFattrs->lAveCharWidth   = 0;   // OUTLINE fonts need this set to 0 as they use other attributes to match
 620     pFattrs->fsType    = 0;// pfm->fsType;              /* uses default type       */
 621     pFattrs->fsFontUse = 0;
 622
 623     wxStrcpy(pFattrs->szFacename, pFM[nIndex].szFacename);
 624     // Debug
 625     strcpy(zFontFaceName, pFM[nIndex].szFacename);
 626     strcpy(zFontFaceName, pFattrs->szFacename);
 627
 628     if(usWeightClass >= FWEIGHT_BOLD)
 629         pFattrs->fsSelection |= FATTR_SEL_BOLD;
 630     if(pFont->GetUnderlined())
 631         pFattrs->fsSelection |= FATTR_SEL_UNDERSCORE;
 632     if(fsSelection & FM_SEL_ITALIC)
 633         pFattrs->fsSelection |= FATTR_SEL_ITALIC;
 634 } // end of wxOS2SelectMatchingFontByName
 635
 636 wxFont wxCreateFontFromLogFont(
 637   const LOGFONT*                    pLogFont
 638 , const PFONTMETRICS                pFM
 639 , PFACENAMEDESC                     pFaceName
 640 )
 641 {
 642     //
 643     // Extract family from facename
 644     //
 645     int                             nFontFamily;
 646
 647     if (strcmp(pLogFont->szFacename, "Times New Roman") == 0)
 648         nFontFamily = wxROMAN;
 649     else if (strcmp(pLogFont->szFacename, "WarpSans") == 0)
 650         nFontFamily = wxSWISS;
 651     else if (strcmp(pLogFont->szFacename, "Script") == 0)
 652         nFontFamily = wxSCRIPT;
 653     else if (strcmp(pLogFont->szFacename, "Courier New") == 0)
 654         nFontFamily = wxMODERN;
 655     else
 656         nFontFamily = wxSWISS;
 657
 658     //
 659     // Weight and Style
 660     //
 661     int                             nFontWeight = wxNORMAL;
 662
 663     switch (pFaceName->usWeightClass)
 664     {
 665         case FWEIGHT_LIGHT:
 666             nFontWeight = wxLIGHT;
 667             break;
 668
 669         default:
 670         case FWEIGHT_NORMAL:
 671             nFontWeight = wxNORMAL;
 672             break;
 673
 674         case FWEIGHT_BOLD:
 675             nFontWeight = wxBOLD;
 676             break;
 677     }
 678
 679     int                             nFontStyle;
 680
 681     if(pLogFont->fsSelection & FATTR_SEL_ITALIC)
 682         nFontStyle = wxITALIC;
 683     else
 684         nFontStyle = wxNORMAL;
 685
 686     bool                            bFontUnderline = (pLogFont->fsSelection & FATTR_SEL_UNDERSCORE);
 687     wxString                        sFontFace = pLogFont->szFacename;
 688     int                             nFontPoints = pFM->lEmHeight;
 689     wxFontEncoding                  vFontEncoding;
 690
 691     switch (pLogFont->usCodePage)
 692     {
 693         default:
 694             wxFAIL_MSG(wxT("unsupported charset"));
 695             // fall through
 696
 697         case 850:
 698             vFontEncoding = wxFONTENCODING_CP1252;
 699             break;
 700
 701         case 1250:
 702             vFontEncoding = wxFONTENCODING_CP1250;
 703             break;
 704
 705         case 921:
 706             vFontEncoding = wxFONTENCODING_CP1257;
 707             break;
 708
 709         case 866:
 710             vFontEncoding = wxFONTENCODING_CP1251;
 711             break;
 712
 713         case 864:
 714             vFontEncoding = wxFONTENCODING_CP1256;
 715             break;
 716
 717         case 869:
 718             vFontEncoding = wxFONTENCODING_CP1253;
 719             break;
 720
 721         case 862:
 722             vFontEncoding = wxFONTENCODING_CP1255;
 723             break;
 724
 725         case 857:
 726             vFontEncoding = wxFONTENCODING_CP1254;
 727             break;
 728
 729         case 874:
 730             vFontEncoding = wxFONTENCODING_CP437;
 731             break;
 732
 733         case 437:
 734             vFontEncoding = wxFONTENCODING_CP437;
 735             break;
 736     }
 737
 738     return wxFont( nFontPoints
 739                   ,nFontFamily
 740                   ,nFontStyle
 741                   ,nFontWeight
 742                   ,bFontUnderline
 743                   ,sFontFace
 744                   ,vFontEncoding
 745                  );
 746 } // end of wxCreateFontFromLogFont
 747
 748 int wxGpiStrcmp(
 749   char*                             s0
 750 , char*                             s1
 751 )
 752 {   int                             l0;
 753     int                             l1;
 754     int                             l;
 755     int                             d;
 756     int                             d1;
 757     int                             i;
 758     int                             rc;
 759
 760     rc = 0;
 761     if(s0 == NULL)
 762     {
 763         if(s1 == NULL)
 764             return 0;
 765         else
 766             return 32;
 767     }
 768     else if(s1 == NULL)
 769         return 32;
 770
 771     l0 = strlen(s0);
 772     l1 = strlen(s1);
 773     l  = l0;
 774     if(l0 != l1)
 775     {
 776         rc++;
 777         if(l1 < l0)
 778             l = l1;
 779     }
 780     for(i=0;i<l;i++)
 781     {
 782         d = s0[i]-s1[i];
 783         if(!d)
 784             continue;
 785         d1 = toupper(s0[i]) - toupper(s1[i]);
 786         if(!d1)
 787             continue;
 788         rc += abs(d);
 789     }
 790     return rc;
 791 }
 792