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     for (int i = 0; i < lNumFonts; i++)
 329     {
 330          sVals << "Face: " << pFM[i].szFacename
 331                << "Family: " << pFM[i].szFamilyname
 332                << " PointSize: " << pFM[i].lEmHeight
 333                << " Height: " << pFM[i].lXHeight
 334                ;
 335          sVals = "";
 336     }
 337
 338     //
 339     // Initialize FATTR and FACENAMEDESC
 340     //
 341     pFattrs->usRecordLength = sizeof(FATTRS);
 342     pFattrs->fsFontUse = FATTR_FONTUSE_OUTLINE |       // only outline fonts allowed
 343                           FATTR_FONTUSE_TRANSFORMABLE;  // may be transformed
 344     pFattrs->fsType = 0;
 345     pFattrs->lMaxBaselineExt = pFattrs->lAveCharWidth = 0;
 346     pFattrs->idRegistry = 0;
 347     pFattrs->lMatch = 0;
 348
 349     pFaceName->usSize = sizeof(FACENAMEDESC);
 350     pFaceName->usWidthClass = FWIDTH_NORMAL;
 351     pFaceName->usReserved = 0;
 352     pFaceName->flOptions = 0;
 353
 354     //
 355     // This does the actual selection of fonts
 356     //
 357     wxOS2SelectMatchingFontByName( pFattrs
 358                                   ,pFaceName
 359                                   ,pFM
 360                                   ,(int)lNumFonts
 361                                   ,pFont
 362                                  );
 363     //
 364     // We should now have the correct FATTRS set with the selected
 365     // font, so now we need to generate an ID
 366     //
 367     long                            lNumLids = ::GpiQueryNumberSetIds(*phPS);
 368     long                            lGpiError;
 369
 370     if(lNumLids )
 371     {
 372         long                        alTypes[255];
 373         STR8                        azNames[255];
 374         long                        alIds[255];
 375
 376         if(!::GpiQuerySetIds( *phPS
 377                              ,lNumLids
 378                              ,alTypes
 379                              ,azNames
 380                              ,alIds
 381                             ))
 382         {
 383             if (bInternalPS)
 384                 ::WinReleasePS(*phPS);
 385             return;
 386         }
 387
 388         for(unsigned long LCNum = 0; LCNum < lNumLids; LCNum++)
 389             if(alIds[LCNum] == *pflId)
 390                ++*pflId;
 391         if(*pflId > 254)  // wow, no id available!
 392         {
 393             if (bInternalPS)
 394                ::WinReleasePS(*phPS);
 395            return;
 396         }
 397     }
 398     else
 399         *pflId = 1L;
 400     //
 401     // Release and delete the current font
 402     //
 403     ::GpiSetCharSet(*phPS, LCID_DEFAULT);/* release the font before deleting */
 404     ::GpiDeleteSetId(*phPS, 1L);         /* delete the logical font          */
 405
 406     //
 407     // Now build a facestring
 408     //
 409     char                            zFacename[128];
 410
 411     strcpy(zFacename, pFattrs->szFacename);
 412
 413     if(::GpiQueryFaceString( *phPS
 414                             ,zFacename
 415                             ,pFaceName
 416                             ,FACESIZE
 417                             ,pFattrs->szFacename
 418                            ) == GPI_ERROR)
 419     {
 420         vError = ::WinGetLastError(vHabmain);
 421     }
 422     sFaceName = zFacename;
 423     *pbInternalPS = bInternalPS;
 424
 425     //
 426     // That's it, we now have everything we need to actually create the font
 427     //
 428 } // end of wxFillLogFont
 429
 430 void wxOS2SelectMatchingFontByName(
 431   PFATTRS                           pFattrs
 432 , PFACENAMEDESC                     pFaceName
 433 , PFONTMETRICS                      pFM
 434 , int                               nNumFonts
 435 , const wxFont*                     pFont
 436 )
 437 {
 438     int                             i;
 439     int                             nDiff0;
 440     int                             nPointSize;
 441     int                             nDiff;
 442     int                             nIs;
 443     int                             nIndex;
 444     int                             nMinDiff;
 445     int                             nMinDiff0;
 446     int                             nApirc;
 447     int                             anDiff[16];
 448     int                             anMinDiff[16];
 449     STR8                            zFn;
 450     char                            zFontFaceName[FACESIZE];
 451     wxString                        sFaceName;
 452     USHORT                          usWeightClass;
 453     int                             fsSelection = 0;
 454
 455     nMinDiff0 = 0xf000;
 456     for(i = 0;i < 16; i++)
 457         anMinDiff[i] = nMinDiff0;
 458
 459     switch (pFont->GetFamily())
 460     {
 461         case wxSCRIPT:
 462             sFaceName = wxT("Script");
 463             break;
 464
 465         case wxDECORATIVE:
 466         case wxROMAN:
 467             sFaceName = wxT("Times New Roman");
 468             break;
 469
 470         case wxTELETYPE:
 471         case wxMODERN:
 472             sFaceName = wxT("Courier") ;
 473             break;
 474
 475         case wxSWISS:
 476             sFaceName = wxT("WarpSans") ;
 477             break;
 478
 479         case wxDEFAULT:
 480         default:
 481             sFaceName = wxT("Helv") ;
 482     }
 483
 484     switch (pFont->GetWeight())
 485     {
 486         default:
 487             wxFAIL_MSG(_T("unknown font weight"));
 488             // fall through
 489             usWeightClass = FWEIGHT_DONT_CARE;
 490             break;
 491
 492         case wxNORMAL:
 493             usWeightClass = FWEIGHT_NORMAL;
 494             break;
 495
 496         case wxLIGHT:
 497             usWeightClass = FWEIGHT_LIGHT;
 498             break;
 499
 500         case wxBOLD:
 501             usWeightClass = FWEIGHT_BOLD;
 502             break;
 503
 504          case wxFONTWEIGHT_MAX:
 505             usWeightClass = FWEIGHT_ULTRA_BOLD;
 506             break;
 507     }
 508     pFaceName->usWeightClass = usWeightClass;
 509
 510     switch (pFont->GetStyle())
 511     {
 512         case wxITALIC:
 513         case wxSLANT:
 514             fsSelection = FM_SEL_ITALIC;
 515             pFaceName->flOptions = FTYPE_ITALIC;
 516             break;
 517
 518         default:
 519             wxFAIL_MSG(wxT("unknown font slant"));
 520             // fall through
 521
 522         case wxNORMAL:
 523             fsSelection  = 0;
 524             break;
 525     }
 526
 527     wxStrncpy(zFontFaceName, sFaceName.c_str(), WXSIZEOF(zFontFaceName));
 528     nPointSize = pFont->GetPointSize();
 529
 530     //
 531     // Matching logic to find the right FM struct
 532     //
 533     nIndex = 0;
 534     for(i = 0, nIs = 0; i < nNumFonts; i++)
 535     {
 536         int                         nEmHeight = 0;
 537         int                         nXHeight = 0;
 538
 539         anDiff[0] = wxGpiStrcmp(pFM[i].szFamilyname, zFontFaceName);
 540         anDiff[1] = abs(pFM[i].lEmHeight - nPointSize);
 541         anDiff[2] = abs(pFM[i].usWeightClass -  usWeightClass);
 542         anDiff[3] = abs((pFM[i].fsSelection & 0x2f) -  fsSelection);
 543         if(anDiff[0] == 0)
 544         {
 545             nEmHeight = (int)pFM[i].lEmHeight;
 546             nXHeight  =(int)pFM[i].lXHeight;
 547             if( (nIs & 0x01) == 0)
 548             {
 549                 nIs = 1;
 550                 nIndex = i;
 551                 anMinDiff[1] = anDiff[1];
 552                 anMinDiff[2] = anDiff[2];
 553                 anMinDiff[3] = anDiff[3];
 554             }
 555             else if(anDiff[3] < anMinDiff[3])
 556             {
 557                 nIndex = i;
 558                 anMinDiff[3] = anDiff[3];
 559             }
 560             else if(anDiff[2] < anMinDiff[2])
 561             {
 562                 nIndex = i;
 563                 anMinDiff[2] = anDiff[2];
 564             }
 565             else if(anDiff[1] < anMinDiff[1])
 566             {
 567                 nIndex = i;
 568                 anMinDiff[1] = anDiff[1];
 569             }
 570             anMinDiff[0] = 0;
 571         }
 572         else if(anDiff[0] < anMinDiff[0])
 573         {
 574               nIs = 2;
 575               nIndex = i;
 576               anMinDiff[3] = anDiff[3];
 577               anMinDiff[2] = anDiff[2];
 578               anMinDiff[1] = anDiff[1];
 579               anMinDiff[0] = anDiff[0];
 580         }
 581         else if(anDiff[0] == anMinDiff[0])
 582         {
 583             if(anDiff[3] < anMinDiff[3])
 584             {
 585                 nIndex = i;
 586                 anMinDiff[3] = anDiff[3];
 587                 nIs = 2;
 588             }
 589             else if(anDiff[2] < anMinDiff[2])
 590             {
 591                 nIndex = i;
 592                 anMinDiff[2] = anDiff[2];
 593                 nIs = 2;
 594             }
 595             else if(anDiff[1] < anMinDiff[1])
 596             {
 597                 nIndex = i;
 598                 anMinDiff[1] = anDiff[1];
 599                 nIs = 2;
 600             }
 601         }
 602     }
 603
 604     //
 605     // Fill in the FATTRS with the best match from FONTMETRICS
 606     //
 607     pFattrs->usRecordLength = sizeof(FATTRS);            // sets size of structure
 608     pFattrs->fsSelection    = pFM[nIndex].fsSelection; // uses default selection
 609     pFattrs->lMatch         = pFM[nIndex].lMatch;      // force match
 610     pFattrs->idRegistry     = pFM[nIndex].idRegistry;  // uses default registry
 611     pFattrs->usCodePage     = pFM[nIndex].usCodePage;  // code-page
 612     if(pFM[nIndex].lMatch)
 613     {
 614         pFattrs->lMaxBaselineExt = pFM[nIndex].lMaxBaselineExt; // requested font height
 615         pFattrs->lAveCharWidth   = pFM[nIndex].lAveCharWidth ;  // requested font width
 616     }
 617     else
 618     {
 619         pFattrs->lMaxBaselineExt = 0;
 620         pFattrs->lAveCharWidth   = 0;
 621     }
 622     pFattrs->fsType    = 0;// pfm->fsType;              /* uses default type       */
 623     pFattrs->fsFontUse = 0;
 624
 625     wxStrcpy(pFattrs->szFacename, pFM[nIndex].szFacename);
 626     // Debug
 627     strcpy(zFontFaceName, pFM[nIndex].szFacename);
 628     strcpy(zFontFaceName, pFattrs->szFacename);
 629
 630     if(usWeightClass >= FWEIGHT_BOLD)
 631         pFattrs->fsSelection |= FATTR_SEL_BOLD;
 632     if(pFont->GetUnderlined())
 633         pFattrs->fsSelection |= FATTR_SEL_UNDERSCORE;
 634     if(fsSelection & FM_SEL_ITALIC)
 635         pFattrs->fsSelection |= FATTR_SEL_ITALIC;
 636 } // end of wxOS2SelectMatchingFontByName
 637
 638 wxFont wxCreateFontFromLogFont(
 639   const LOGFONT*                    pLogFont
 640 , const PFONTMETRICS                pFM
 641 , PFACENAMEDESC                     pFaceName
 642 )
 643 {
 644     //
 645     // Extract family from facename
 646     //
 647     int                             nFontFamily;
 648
 649     if (strcmp(pLogFont->szFacename, "Times New Roman") == 0)
 650         nFontFamily = wxROMAN;
 651     else if (strcmp(pLogFont->szFacename, "WarpSans") == 0)
 652         nFontFamily = wxSWISS;
 653     else if (strcmp(pLogFont->szFacename, "Script") == 0)
 654         nFontFamily = wxSCRIPT;
 655     else if (strcmp(pLogFont->szFacename, "Courier New") == 0)
 656         nFontFamily = wxMODERN;
 657     else
 658         nFontFamily = wxSWISS;
 659
 660     //
 661     // Weight and Style
 662     //
 663     int                             nFontWeight = wxNORMAL;
 664
 665     switch (pFaceName->usWeightClass)
 666     {
 667         case FWEIGHT_LIGHT:
 668             nFontWeight = wxLIGHT;
 669             break;
 670
 671         default:
 672         case FWEIGHT_NORMAL:
 673             nFontWeight = wxNORMAL;
 674             break;
 675
 676         case FWEIGHT_BOLD:
 677             nFontWeight = wxBOLD;
 678             break;
 679     }
 680
 681     int                             nFontStyle;
 682
 683     if(pLogFont->fsSelection & FATTR_SEL_ITALIC)
 684         nFontStyle = wxITALIC;
 685     else
 686         nFontStyle = wxNORMAL;
 687
 688     bool                            bFontUnderline = (pLogFont->fsSelection & FATTR_SEL_UNDERSCORE);
 689     wxString                        sFontFace = pLogFont->szFacename;
 690     int                             nFontPoints = pFM->lEmHeight;
 691     wxFontEncoding                  vFontEncoding;
 692
 693     switch (pLogFont->usCodePage)
 694     {
 695         default:
 696             wxFAIL_MSG(wxT("unsupported charset"));
 697             // fall through
 698
 699         case 850:
 700             vFontEncoding = wxFONTENCODING_CP1252;
 701             break;
 702
 703         case 1250:
 704             vFontEncoding = wxFONTENCODING_CP1250;
 705             break;
 706
 707         case 921:
 708             vFontEncoding = wxFONTENCODING_CP1257;
 709             break;
 710
 711         case 866:
 712             vFontEncoding = wxFONTENCODING_CP1251;
 713             break;
 714
 715         case 864:
 716             vFontEncoding = wxFONTENCODING_CP1256;
 717             break;
 718
 719         case 869:
 720             vFontEncoding = wxFONTENCODING_CP1253;
 721             break;
 722
 723         case 862:
 724             vFontEncoding = wxFONTENCODING_CP1255;
 725             break;
 726
 727         case 857:
 728             vFontEncoding = wxFONTENCODING_CP1254;
 729             break;
 730
 731         case 874:
 732             vFontEncoding = wxFONTENCODING_CP437;
 733             break;
 734
 735         case 437:
 736             vFontEncoding = wxFONTENCODING_CP437;
 737             break;
 738     }
 739
 740     return wxFont( nFontPoints
 741                   ,nFontFamily
 742                   ,nFontStyle
 743                   ,nFontWeight
 744                   ,bFontUnderline
 745                   ,sFontFace
 746                   ,vFontEncoding
 747                  );
 748 } // end of wxCreateFontFromLogFont
 749
 750 int wxGpiStrcmp(
 751   char*                             s0
 752 , char*                             s1
 753 )
 754 {   int                             l0;
 755     int                             l1;
 756     int                             l;
 757     int                             d;
 758     int                             d1;
 759     int                             i;
 760     int                             rc;
 761
 762     rc = 0;
 763     if(s0 == NULL)
 764     {
 765         if(s1 == NULL)
 766             return 0;
 767         else
 768             return 32;
 769     }
 770     else if(s1 == NULL)
 771         return 32;
 772
 773     l0 = strlen(s0);
 774     l1 = strlen(s1);
 775     l  = l0;
 776     if(l0 != l1)
 777     {
 778         rc++;
 779         if(l1 < l0)
 780             l = l1;
 781     }
 782     for(i=0;i<l;i++)
 783     {
 784         d = s0[i]-s1[i];
 785         if(!d)
 786             continue;
 787         d1 = toupper(s0[i]) - toupper(s1[i]);
 788         if(!d1)
 789             continue;
 790         rc += abs(d);
 791     }
 792     return rc;
 793 }
 794