src/gtk1/font.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/font.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling and Julian Smart
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // ============================================================================
  11 // declarations
  12 // ============================================================================
  13
  14 // ----------------------------------------------------------------------------
  15 // headers
  16 // ----------------------------------------------------------------------------
  17
  18 // For compilers that support precompilation, includes "wx.h".
  19 #include "wx/wxprec.h"
  20
  21 #include "wx/font.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/log.h"
  25     #include "wx/settings.h"
  26     #include "wx/gdicmn.h"
  27     #include "wx/encinfo.h"
  28 #endif
  29
  30 #include "wx/fontutil.h"
  31 #include "wx/utils.h"
  32 #include "wx/tokenzr.h"
  33
  34 #include <strings.h>
  35
  36 #include "wx/gtk1/private.h"
  37 #include <gdk/gdkprivate.h>
  38
  39 // ----------------------------------------------------------------------------
  40 // constants
  41 // ----------------------------------------------------------------------------
  42
  43 // the default size (in points) for the fonts
  44 static const int wxDEFAULT_FONT_SIZE = 12;
  45
  46 // ----------------------------------------------------------------------------
  47 // wxScaledFontList: maps the font sizes to the GDK fonts for the given font
  48 // ----------------------------------------------------------------------------
  49
  50 WX_DECLARE_HASH_MAP(int, GdkFont *, wxIntegerHash, wxIntegerEqual,
  51                     wxScaledFontList);
  52
  53 // ----------------------------------------------------------------------------
  54 // wxFontRefData
  55 // ----------------------------------------------------------------------------
  56
  57 class wxFontRefData : public wxGDIRefData
  58 {
  59 public:
  60     // from broken down font parameters, also default ctor
  61     wxFontRefData(int size = -1,
  62                   wxFontFamily family = wxFONTFAMILY_DEFAULT,
  63                   wxFontStyle style = wxFONTSTYLE_NORMAL,
  64                   wxFontWeight weight = wxFONTWEIGHT_NORMAL,
  65                   bool underlined = false,
  66                   const wxString& faceName = wxEmptyString,
  67                   wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
  68
  69     // from XFLD
  70     wxFontRefData(const wxString& fontname);
  71
  72     // copy ctor
  73     wxFontRefData( const wxFontRefData& data );
  74
  75     virtual ~wxFontRefData();
  76
  77     // do we have the native font info?
  78     bool HasNativeFont() const
  79     {
  80         // only use m_nativeFontInfo if it had been initialized
  81         return !m_nativeFontInfo.IsDefault();
  82     }
  83
  84     // setters: all of them also take care to modify m_nativeFontInfo if we
  85     // have it so as to not lose the information not carried by our fields
  86     void SetPointSize(int pointSize);
  87     void SetFamily(wxFontFamily family);
  88     void SetStyle(wxFontStyle style);
  89     void SetWeight(wxFontWeight weight);
  90     void SetUnderlined(bool underlined);
  91     bool SetFaceName(const wxString& facename);
  92     void SetEncoding(wxFontEncoding encoding);
  93
  94     // and this one also modifies all the other font data fields
  95     void SetNativeFontInfo(const wxNativeFontInfo& info);
  96
  97 protected:
  98     // common part of all ctors
  99     void Init(int pointSize,
 100               wxFontFamily family,
 101               wxFontStyle style,
 102               wxFontWeight weight,
 103               bool underlined,
 104               const wxString& faceName,
 105               wxFontEncoding encoding);
 106
 107     // set all fields from (already initialized and valid) m_nativeFontInfo
 108     void InitFromNative();
 109
 110 private:
 111     // clear m_scaled_xfonts if any
 112     void ClearGdkFonts();
 113
 114     // the map of font sizes to "GdkFont *"
 115     wxScaledFontList  m_scaled_xfonts;
 116
 117     int             m_pointSize;
 118     wxFontFamily    m_family;
 119     wxFontStyle     m_style;
 120     wxFontWeight    m_weight;
 121     bool            m_underlined;
 122     wxString        m_faceName;
 123     wxFontEncoding  m_encoding;  // Unused under GTK 2.0
 124
 125     // The native font info, basicly an XFLD under GTK 1.2 and
 126     // the pango font description under GTK 2.0.
 127     wxNativeFontInfo m_nativeFontInfo;
 128
 129     friend class wxFont;
 130 };
 131
 132 #define M_FONTDATA ((wxFontRefData*)m_refData)
 133
 134 // ----------------------------------------------------------------------------
 135 // wxFontRefData
 136 // ----------------------------------------------------------------------------
 137
 138 void wxFontRefData::Init(int pointSize,
 139                          wxFontFamily family,
 140                          wxFontStyle style,
 141                          wxFontWeight weight,
 142                          bool underlined,
 143                          const wxString& faceName,
 144                          wxFontEncoding encoding)
 145 {
 146     m_family = family == wxFONTFAMILY_DEFAULT ? wxFONTFAMILY_SWISS : family;
 147
 148     m_faceName = faceName;
 149
 150     // we accept both wxDEFAULT and wxNORMAL here - should we?
 151     m_style = style == wxDEFAULT ? wxFONTSTYLE_NORMAL : style;
 152     m_weight = weight == wxDEFAULT ? wxFONTWEIGHT_NORMAL : weight;
 153
 154     // and here, do we really want to forbid creation of the font of the size
 155     // 90 (the value of wxDEFAULT)??
 156     m_pointSize = pointSize == wxDEFAULT || pointSize == -1
 157                     ? wxDEFAULT_FONT_SIZE
 158                     : pointSize;
 159
 160     m_underlined = underlined;
 161     m_encoding = encoding;
 162 }
 163
 164 void wxFontRefData::InitFromNative()
 165 {
 166     // get the font parameters from the XLFD
 167     // -------------------------------------
 168
 169     m_faceName = m_nativeFontInfo.GetXFontComponent(wxXLFD_FAMILY);
 170
 171     m_weight = wxFONTWEIGHT_NORMAL;
 172
 173     wxString w = m_nativeFontInfo.GetXFontComponent(wxXLFD_WEIGHT).Upper();
 174     if ( !w.empty() && w != wxT('*') )
 175     {
 176         // the test below catches all of BOLD, EXTRABOLD, DEMIBOLD, ULTRABOLD
 177         // and BLACK
 178         if ( ((w[0u] == wxT('B') && (!wxStrcmp(w.c_str() + 1, wxT("OLD")) ||
 179                                    !wxStrcmp(w.c_str() + 1, wxT("LACK"))))) ||
 180              wxStrstr(w.c_str() + 1, wxT("BOLD")) )
 181         {
 182             m_weight = wxFONTWEIGHT_BOLD;
 183         }
 184         else if ( w == wxT("LIGHT") || w == wxT("THIN") )
 185         {
 186             m_weight = wxFONTWEIGHT_LIGHT;
 187         }
 188     }
 189
 190     switch ( wxToupper(m_nativeFontInfo.
 191                            GetXFontComponent(wxXLFD_SLANT)[0u]).GetValue() )
 192     {
 193         case wxT('I'):   // italique
 194             m_style = wxFONTSTYLE_ITALIC;
 195             break;
 196
 197         case wxT('O'):   // oblique
 198             m_style = wxFONTSTYLE_SLANT;
 199             break;
 200
 201         default:
 202             m_style = wxFONTSTYLE_NORMAL;
 203     }
 204
 205     long ptSize;
 206     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_POINTSIZE).ToLong(&ptSize) )
 207     {
 208         // size in XLFD is in 10 point units
 209         m_pointSize = (int)(ptSize / 10);
 210     }
 211     else
 212     {
 213         m_pointSize = wxDEFAULT_FONT_SIZE;
 214     }
 215
 216     // examine the spacing: if the font is monospaced, assume wxTELETYPE
 217     // family for compatibility with the old code which used it instead of
 218     // IsFixedWidth()
 219     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING).Upper() == wxT('M') )
 220     {
 221         m_family = wxFONTFAMILY_TELETYPE;
 222     }
 223     else // not monospaceed
 224     {
 225         // don't even try guessing it, it doesn't work for too many fonts
 226         // anyhow
 227         m_family = wxFONTFAMILY_UNKNOWN;
 228     }
 229
 230     // X fonts are never underlined...
 231     m_underlined = false;
 232
 233     // deal with font encoding
 234     wxString
 235         registry = m_nativeFontInfo.GetXFontComponent(wxXLFD_REGISTRY).Upper(),
 236         encoding = m_nativeFontInfo.GetXFontComponent(wxXLFD_ENCODING).Upper();
 237
 238     if ( registry == wxT("ISO8859") )
 239     {
 240         int cp;
 241         if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
 242         {
 243             m_encoding = (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
 244         }
 245     }
 246     else if ( registry == wxT("MICROSOFT") )
 247     {
 248         int cp;
 249         if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
 250         {
 251             m_encoding = (wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
 252         }
 253     }
 254     else if ( registry == wxT("KOI8") )
 255     {
 256         m_encoding = wxFONTENCODING_KOI8;
 257     }
 258     else // unknown encoding
 259     {
 260         // may be give a warning here? or use wxFontMapper?
 261         m_encoding = wxFONTENCODING_SYSTEM;
 262     }
 263 }
 264
 265 wxFontRefData::wxFontRefData( const wxFontRefData& data )
 266              : wxGDIRefData()
 267 {
 268     m_pointSize = data.m_pointSize;
 269     m_family = data.m_family;
 270     m_style = data.m_style;
 271     m_weight = data.m_weight;
 272
 273     m_underlined = data.m_underlined;
 274
 275     m_faceName = data.m_faceName;
 276     m_encoding = data.m_encoding;
 277
 278     // Forces a copy of the internal data.  wxNativeFontInfo should probably
 279     // have a copy ctor and assignment operator to fix this properly but that
 280     // would break binary compatibility...
 281     m_nativeFontInfo.FromString(data.m_nativeFontInfo.ToString());
 282 }
 283
 284 wxFontRefData::wxFontRefData(int size, wxFontFamily family, wxFontStyle style,
 285                              wxFontWeight weight, bool underlined,
 286                              const wxString& faceName,
 287                              wxFontEncoding encoding)
 288 {
 289     Init(size, family, style, weight, underlined, faceName, encoding);
 290 }
 291
 292 wxFontRefData::wxFontRefData(const wxString& fontname)
 293 {
 294     // FromString() should really work in GTK1 too, doesn't it?
 295     m_nativeFontInfo.SetXFontName(fontname);
 296
 297     InitFromNative();
 298 }
 299
 300 void wxFontRefData::ClearGdkFonts()
 301 {
 302     for ( wxScaledFontList::iterator i = m_scaled_xfonts.begin();
 303           i != m_scaled_xfonts.end();
 304           ++i )
 305     {
 306         GdkFont *font = i->second;
 307         gdk_font_unref( font );
 308     }
 309
 310     m_scaled_xfonts.clear();
 311 }
 312
 313 wxFontRefData::~wxFontRefData()
 314 {
 315     ClearGdkFonts();
 316 }
 317
 318 // ----------------------------------------------------------------------------
 319 // wxFontRefData SetXXX()
 320 // ----------------------------------------------------------------------------
 321
 322 void wxFontRefData::SetPointSize(int pointSize)
 323 {
 324     m_pointSize = pointSize;
 325
 326     if ( HasNativeFont() )
 327     {
 328         wxString size;
 329         if ( pointSize == -1 )
 330             size = wxT('*');
 331         else
 332             size.Printf(wxT("%d"), 10*pointSize);
 333
 334         m_nativeFontInfo.SetXFontComponent(wxXLFD_POINTSIZE, size);
 335     }
 336 }
 337
 338 void wxFontRefData::SetFamily(wxFontFamily family)
 339 {
 340     m_family = family;
 341
 342     // TODO: what are we supposed to do with m_nativeFontInfo here?
 343 }
 344
 345 void wxFontRefData::SetStyle(wxFontStyle style)
 346 {
 347     m_style = style;
 348
 349     if ( HasNativeFont() )
 350     {
 351         wxString slant;
 352         switch ( style )
 353         {
 354             case wxFONTSTYLE_ITALIC:
 355                 slant = wxT('i');
 356                 break;
 357
 358             case wxFONTSTYLE_SLANT:
 359                 slant = wxT('o');
 360                 break;
 361
 362             default:
 363                 wxFAIL_MSG( wxT("unknown font style") );
 364                 // fall through
 365
 366             case wxFONTSTYLE_NORMAL:
 367                 slant = wxT('r');
 368         }
 369
 370         m_nativeFontInfo.SetXFontComponent(wxXLFD_SLANT, slant);
 371     }
 372 }
 373
 374 void wxFontRefData::SetWeight(wxFontWeight weight)
 375 {
 376     m_weight = weight;
 377
 378     if ( HasNativeFont() )
 379     {
 380         wxString boldness;
 381         switch ( weight )
 382         {
 383             case wxFONTWEIGHT_BOLD:
 384                 boldness = wxT("bold");
 385                 break;
 386
 387             case wxFONTWEIGHT_LIGHT:
 388                 boldness = wxT("light");
 389                 break;
 390
 391             default:
 392                 wxFAIL_MSG( wxT("unknown font weight") );
 393                 // fall through
 394
 395             case wxFONTWEIGHT_NORMAL:
 396                 // unspecified
 397                 boldness = wxT("medium");
 398         }
 399
 400         m_nativeFontInfo.SetXFontComponent(wxXLFD_WEIGHT, boldness);
 401     }
 402 }
 403
 404 void wxFontRefData::SetUnderlined(bool underlined)
 405 {
 406     m_underlined = underlined;
 407
 408     // the XLFD doesn't have "underlined" field anyhow
 409 }
 410
 411 bool wxFontRefData::SetFaceName(const wxString& facename)
 412 {
 413     m_faceName = facename;
 414
 415     if ( HasNativeFont() )
 416     {
 417         m_nativeFontInfo.SetXFontComponent(wxXLFD_FAMILY, facename);
 418     }
 419
 420     return true;
 421 }
 422
 423 void wxFontRefData::SetEncoding(wxFontEncoding encoding)
 424 {
 425     m_encoding = encoding;
 426
 427     if ( HasNativeFont() )
 428     {
 429         wxNativeEncodingInfo info;
 430         if ( wxGetNativeFontEncoding(encoding, &info) )
 431         {
 432             m_nativeFontInfo.SetXFontComponent(wxXLFD_REGISTRY, info.xregistry);
 433             m_nativeFontInfo.SetXFontComponent(wxXLFD_ENCODING, info.xencoding);
 434         }
 435     }
 436 }
 437
 438 void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info)
 439 {
 440     // previously cached fonts shouldn't be used
 441     ClearGdkFonts();
 442
 443     m_nativeFontInfo = info;
 444
 445     // set all the other font parameters from the native font info
 446     InitFromNative();
 447 }
 448
 449 // ----------------------------------------------------------------------------
 450 // wxFont creation
 451 // ----------------------------------------------------------------------------
 452
 453 wxFont::wxFont(const wxNativeFontInfo& info)
 454 {
 455     (void) Create(info.GetXFontName());
 456 }
 457
 458 bool wxFont::Create( int pointSize,
 459                     wxFontFamily family,
 460                     wxFontStyle style,
 461                     wxFontWeight weight,
 462                      bool underlined,
 463                      const wxString& face,
 464                      wxFontEncoding encoding)
 465 {
 466     UnRef();
 467
 468     m_refData = new wxFontRefData(pointSize, family, style, weight,
 469                                   underlined, face, encoding);
 470
 471     return true;
 472 }
 473
 474 bool wxFont::Create(const wxString& fontname)
 475 {
 476     // VZ: does this really happen?
 477     if ( fontname.empty() )
 478     {
 479         *this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 480
 481         return true;
 482     }
 483
 484     m_refData = new wxFontRefData(fontname);
 485
 486     return true;
 487 }
 488
 489 void wxFont::Unshare()
 490 {
 491     if (!m_refData)
 492     {
 493         m_refData = new wxFontRefData();
 494     }
 495     else
 496     {
 497         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 498         UnRef();
 499         m_refData = ref;
 500     }
 501 }
 502
 503 wxFont::~wxFont()
 504 {
 505 }
 506
 507 wxGDIRefData *wxFont::CreateGDIRefData() const
 508 {
 509     return new wxFontRefData;
 510 }
 511
 512 wxGDIRefData *wxFont::CloneGDIRefData(const wxGDIRefData *data) const
 513 {
 514     return new wxFontRefData(*static_cast<const wxFontRefData *>(data));
 515 }
 516
 517 // ----------------------------------------------------------------------------
 518 // accessors
 519 // ----------------------------------------------------------------------------
 520
 521 int wxFont::GetPointSize() const
 522 {
 523     wxCHECK_MSG( IsOk(), 0, wxT("invalid font") );
 524
 525     return M_FONTDATA->m_pointSize;
 526 }
 527
 528 wxString wxFont::GetFaceName() const
 529 {
 530     wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") );
 531
 532     return M_FONTDATA->m_faceName;
 533 }
 534
 535 wxFontFamily wxFont::DoGetFamily() const
 536 {
 537     return M_FONTDATA->m_family;
 538 }
 539
 540 wxFontStyle wxFont::GetStyle() const
 541 {
 542     wxCHECK_MSG( IsOk(), wxFONTSTYLE_MAX, wxT("invalid font") );
 543
 544     return M_FONTDATA->m_style;
 545 }
 546
 547 wxFontWeight wxFont::GetWeight() const
 548 {
 549     wxCHECK_MSG( IsOk(), wxFONTWEIGHT_MAX, wxT("invalid font") );
 550
 551     return M_FONTDATA->m_weight;
 552 }
 553
 554 bool wxFont::GetUnderlined() const
 555 {
 556     wxCHECK_MSG( IsOk(), false, wxT("invalid font") );
 557
 558     return M_FONTDATA->m_underlined;
 559 }
 560
 561 wxFontEncoding wxFont::GetEncoding() const
 562 {
 563     wxCHECK_MSG( IsOk(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 564
 565     // m_encoding is unused in wxGTK2, return encoding that the user set.
 566     return M_FONTDATA->m_encoding;
 567 }
 568
 569 const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 570 {
 571     wxCHECK_MSG( IsOk(), NULL, wxT("invalid font") );
 572
 573     if ( !M_FONTDATA->HasNativeFont() )
 574     {
 575         // NB: this call has important side-effect: it not only finds
 576         //     GdkFont representation, it also initializes m_nativeFontInfo
 577         //     by calling its SetXFontName method
 578         GetInternalFont();
 579     }
 580
 581     return &(M_FONTDATA->m_nativeFontInfo);
 582 }
 583
 584 bool wxFont::IsFixedWidth() const
 585 {
 586     wxCHECK_MSG( IsOk(), false, wxT("invalid font") );
 587
 588     if ( M_FONTDATA->HasNativeFont() )
 589     {
 590         // the monospace fonts are supposed to have "M" in the spacing field
 591         wxString spacing = M_FONTDATA->
 592                             m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING);
 593
 594         return spacing.Upper() == wxT('M');
 595     }
 596
 597     return wxFontBase::IsFixedWidth();
 598 }
 599
 600 // ----------------------------------------------------------------------------
 601 // change font attributes
 602 // ----------------------------------------------------------------------------
 603
 604 void wxFont::SetPointSize(int pointSize)
 605 {
 606     Unshare();
 607
 608     M_FONTDATA->SetPointSize(pointSize);
 609 }
 610
 611 void wxFont::SetFamily(wxFontFamily family)
 612 {
 613     Unshare();
 614
 615     M_FONTDATA->SetFamily(family);
 616 }
 617
 618 void wxFont::SetStyle(wxFontStyle style)
 619 {
 620     Unshare();
 621
 622     M_FONTDATA->SetStyle(style);
 623 }
 624
 625 void wxFont::SetWeight(wxFontWeight weight)
 626 {
 627     Unshare();
 628
 629     M_FONTDATA->SetWeight(weight);
 630 }
 631
 632 bool wxFont::SetFaceName(const wxString& faceName)
 633 {
 634     Unshare();
 635
 636     return M_FONTDATA->SetFaceName(faceName) &&
 637            wxFontBase::SetFaceName(faceName);
 638 }
 639
 640 void wxFont::SetUnderlined(bool underlined)
 641 {
 642     Unshare();
 643
 644     M_FONTDATA->SetUnderlined(underlined);
 645 }
 646
 647 void wxFont::SetEncoding(wxFontEncoding encoding)
 648 {
 649     Unshare();
 650
 651     M_FONTDATA->SetEncoding(encoding);
 652 }
 653
 654 void wxFont::DoSetNativeFontInfo( const wxNativeFontInfo& info )
 655 {
 656     Unshare();
 657
 658     M_FONTDATA->SetNativeFontInfo( info );
 659 }
 660
 661 // ----------------------------------------------------------------------------
 662 // get internal representation of font
 663 // ----------------------------------------------------------------------------
 664
 665 static GdkFont *g_systemDefaultGuiFont = NULL;
 666
 667 // this is also used from toolbar.cpp and tooltip.cpp, hence extern
 668 extern GdkFont *GtkGetDefaultGuiFont()
 669 {
 670     if (!g_systemDefaultGuiFont)
 671     {
 672         GtkWidget *widget = gtk_button_new();
 673         GtkStyle *def = gtk_rc_get_style( widget );
 674         if (def)
 675         {
 676             g_systemDefaultGuiFont = gdk_font_ref( def->font );
 677         }
 678         else
 679         {
 680             def = gtk_widget_get_default_style();
 681             if (def)
 682                 g_systemDefaultGuiFont = gdk_font_ref( def->font );
 683         }
 684         gtk_widget_destroy( widget );
 685     }
 686     else
 687     {
 688         // already have it, but ref it once more before returning
 689         gdk_font_ref(g_systemDefaultGuiFont);
 690     }
 691
 692     return g_systemDefaultGuiFont;
 693 }
 694
 695 GdkFont *wxFont::GetInternalFont( float scale ) const
 696 {
 697     GdkFont *font = NULL;
 698
 699     wxCHECK_MSG( IsOk(), font, wxT("invalid font") );
 700
 701     long int_scale = long(scale * 100.0 + 0.5); // key for fontlist
 702     int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100);
 703
 704     wxScaledFontList& list = M_FONTDATA->m_scaled_xfonts;
 705     wxScaledFontList::iterator i = list.find(int_scale);
 706     if ( i != list.end() )
 707     {
 708         font = i->second;
 709     }
 710     else // we don't have this font in this size yet
 711     {
 712         if (*this == wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT))
 713         {
 714             font = GtkGetDefaultGuiFont();
 715         }
 716
 717         if ( !font )
 718         {
 719             // do we have the XLFD?
 720             if ( int_scale == 100 && M_FONTDATA->HasNativeFont() )
 721             {
 722                 font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName());
 723             }
 724
 725             // no XLFD of no exact match - try the approximate one now
 726             if ( !font )
 727             {
 728                 wxString xfontname;
 729                 font = wxLoadQueryNearestFont( point_scale,
 730                                                M_FONTDATA->m_family,
 731                                                M_FONTDATA->m_style,
 732                                                M_FONTDATA->m_weight,
 733                                                M_FONTDATA->m_underlined,
 734                                                M_FONTDATA->m_faceName,
 735                                                M_FONTDATA->m_encoding,
 736                                                &xfontname);
 737                 // NB: wxFont::GetNativeFontInfo relies on this
 738                 //     side-effect of GetInternalFont
 739                 if ( int_scale == 100 )
 740                     M_FONTDATA->m_nativeFontInfo.SetXFontName(xfontname);
 741             }
 742         }
 743
 744         if ( font )
 745         {
 746             list[int_scale] = font;
 747         }
 748     }
 749
 750     // it's quite useless to make it a wxCHECK because we're going to crash
 751     // anyhow...
 752     wxASSERT_MSG( font, wxT("could not load any font?") );
 753
 754     return font;
 755 }