src/gtk/font.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gtk/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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  19     #pragma implementation "font.h"
  20 #endif
  21
  22 // For compilers that support precompilation, includes "wx.h".
  23 #include "wx/wxprec.h"
  24
  25 #include "wx/font.h"
  26 #include "wx/fontutil.h"
  27 #include "wx/cmndata.h"
  28 #include "wx/utils.h"
  29 #include "wx/log.h"
  30 #include "wx/gdicmn.h"
  31 #include "wx/tokenzr.h"
  32 #include "wx/settings.h"
  33
  34 #include <strings.h>
  35
  36 #include "wx/gtk/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 wxObjectRefData
  58 {
  59 public:
  60     // from broken down font parameters, also default ctor
  61     wxFontRefData(int size = -1,
  62                   int family = wxFONTFAMILY_DEFAULT,
  63                   int style = wxFONTSTYLE_NORMAL,
  64                   int 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 #ifdef __WXGTK20__
  81         // we always have a Pango font description
  82         return TRUE;
  83 #else // GTK 1.x
  84         // only use m_nativeFontInfo if it had been initialized
  85         return !m_nativeFontInfo.IsDefault();
  86 #endif // GTK 2.0/1.x
  87     }
  88
  89 #ifndef __WXGTK20__
  90     // reinitilize the font with the gived XFLD
  91     void ReInit(const wxString& fontname);
  92 #endif
  93
  94     // setters: all of them also take care to modify m_nativeFontInfo if we
  95     // have it so as to not lose the information not carried by our fields
  96     void SetPointSize(int pointSize);
  97     void SetFamily(int family);
  98     void SetStyle(int style);
  99     void SetWeight(int weight);
 100     void SetUnderlined(bool underlined);
 101     void SetFaceName(const wxString& facename);
 102     void SetEncoding(wxFontEncoding encoding);
 103
 104     void SetNoAntiAliasing( bool no = TRUE ) { m_noAA = no; }
 105     bool GetNoAntiAliasing() { return m_noAA; }
 106
 107     // and this one also modifies all the other font data fields
 108     void SetNativeFontInfo(const wxNativeFontInfo& info);
 109
 110     // debugger helper: shows what the font really is
 111     //
 112     // VZ: I need this as my gdb either shows wildly wrong values or crashes
 113     //     when I ask it to "p fontRefData" :-(
 114 #if defined(__WXDEBUG__) && !defined(__WXGTK20__)
 115     void Dump() const
 116     {
 117         wxPrintf(_T("%s-%s-%s-%d-%d\n"),
 118                  m_faceName.c_str(),
 119                  m_weight == wxFONTWEIGHT_NORMAL
 120                     ? _T("normal")
 121                     : m_weight == wxFONTWEIGHT_BOLD
 122                         ? _T("bold")
 123                         : _T("light"),
 124                  m_style == wxFONTSTYLE_NORMAL ? _T("regular") : _T("italic"),
 125                  m_pointSize,
 126                  m_encoding);
 127     }
 128 #endif // Debug
 129
 130 protected:
 131     // common part of all ctors
 132     void Init(int pointSize,
 133               int family,
 134               int style,
 135               int weight,
 136               bool underlined,
 137               const wxString& faceName,
 138               wxFontEncoding encoding);
 139
 140     // set all fields from (already initialized and valid) m_nativeFontInfo
 141     void InitFromNative();
 142
 143 private:
 144     // clear m_scaled_xfonts if any
 145     void ClearGdkFonts();
 146
 147 #ifndef __WXGTK20__
 148     // the map of font sizes to "GdkFont *"
 149     wxScaledFontList  m_scaled_xfonts;
 150 #endif // GTK 2.0/1.x
 151
 152     int             m_pointSize;
 153     int             m_family,
 154                     m_style,
 155                     m_weight;
 156     bool            m_underlined;
 157     wxString        m_faceName;
 158     wxFontEncoding  m_encoding;  // Unused under GTK 2.0
 159     bool            m_noAA;      // No anti-aliasing
 160
 161     // The native font info, basicly an XFLD under GTK 1.2 and
 162     // the pango font description under GTK 2.0.
 163     wxNativeFontInfo m_nativeFontInfo;
 164
 165     friend class wxFont;
 166 };
 167
 168 // ----------------------------------------------------------------------------
 169 // wxFontRefData
 170 // ----------------------------------------------------------------------------
 171
 172 void wxFontRefData::Init(int pointSize,
 173                          int family,
 174                          int style,
 175                          int weight,
 176                          bool underlined,
 177                          const wxString& faceName,
 178                          wxFontEncoding encoding)
 179 {
 180     m_family = family == wxFONTFAMILY_DEFAULT ? wxFONTFAMILY_SWISS : family;
 181
 182     m_faceName = faceName;
 183
 184     // we accept both wxDEFAULT and wxNORMAL here - should we?
 185     m_style = style == wxDEFAULT ? wxFONTSTYLE_NORMAL : style;
 186     m_weight = weight == wxDEFAULT ? wxFONTWEIGHT_NORMAL : weight;
 187
 188     // and here, do we really want to forbid creation of the font of the size
 189     // 90 (the value of wxDEFAULT)??
 190     m_pointSize = pointSize == wxDEFAULT || pointSize == -1
 191                     ? wxDEFAULT_FONT_SIZE
 192                     : pointSize;
 193
 194     m_underlined = underlined;
 195     m_encoding = encoding;
 196
 197     m_noAA = FALSE;
 198
 199 #ifdef __WXGTK20__
 200     // Create native font info
 201     m_nativeFontInfo.description = pango_font_description_new();
 202
 203     // And set its values
 204     if (!m_faceName.empty())
 205     {
 206        pango_font_description_set_family( m_nativeFontInfo.description, wxGTK_CONV(m_faceName) );
 207     }
 208     else
 209     {
 210         switch (m_family)
 211         {
 212             case wxFONTFAMILY_MODERN:
 213             case wxFONTFAMILY_TELETYPE:
 214                pango_font_description_set_family( m_nativeFontInfo.description, "monospace" );
 215                break;
 216             case wxFONTFAMILY_ROMAN:
 217                pango_font_description_set_family( m_nativeFontInfo.description, "serif" );
 218                break;
 219             case wxFONTFAMILY_SWISS:
 220                // SWISS = sans serif
 221             default:
 222                pango_font_description_set_family( m_nativeFontInfo.description, "sans" );
 223                break;
 224         }
 225     }
 226
 227     SetStyle( m_style );
 228     SetPointSize( m_pointSize );
 229     SetWeight( m_weight );
 230 #endif // GTK 2.0
 231 }
 232
 233 void wxFontRefData::InitFromNative()
 234 {
 235     m_noAA = FALSE;
 236
 237 #ifdef __WXGTK20__
 238     // Get native info
 239     PangoFontDescription *desc = m_nativeFontInfo.description;
 240
 241     // init fields
 242     m_faceName = wxGTK_CONV_BACK( pango_font_description_get_family( desc ) );
 243
 244     m_pointSize = pango_font_description_get_size( desc ) / PANGO_SCALE;
 245
 246     switch (pango_font_description_get_style( desc ))
 247     {
 248         case PANGO_STYLE_NORMAL:
 249             m_style = wxFONTSTYLE_NORMAL;
 250             break;
 251         case PANGO_STYLE_ITALIC:
 252             m_style = wxFONTSTYLE_ITALIC;
 253             break;
 254         case PANGO_STYLE_OBLIQUE:
 255             m_style = wxFONTSTYLE_SLANT;
 256             break;
 257     }
 258
 259     switch (pango_font_description_get_weight( desc ))
 260     {
 261         case PANGO_WEIGHT_ULTRALIGHT:
 262             m_weight = wxFONTWEIGHT_LIGHT;
 263             break;
 264         case PANGO_WEIGHT_LIGHT:
 265             m_weight = wxFONTWEIGHT_LIGHT;
 266             break;
 267         case PANGO_WEIGHT_NORMAL:
 268             m_weight = wxFONTWEIGHT_NORMAL;
 269             break;
 270         case PANGO_WEIGHT_BOLD:
 271             m_weight = wxFONTWEIGHT_BOLD;
 272             break;
 273         case PANGO_WEIGHT_ULTRABOLD:
 274             m_weight = wxFONTWEIGHT_BOLD;
 275             break;
 276         case PANGO_WEIGHT_HEAVY:
 277             m_weight = wxFONTWEIGHT_BOLD;
 278             break;
 279     }
 280
 281     if (m_faceName == wxT("monospace"))
 282     {
 283         m_family = wxFONTFAMILY_TELETYPE;
 284     }
 285     else if (m_faceName == wxT("sans"))
 286     {
 287         m_family = wxFONTFAMILY_SWISS;
 288     }
 289     else if (m_faceName == wxT("serif"))
 290     {
 291         m_family = wxFONTFAMILY_ROMAN;
 292     }
 293     else
 294     {
 295         m_family = wxFONTFAMILY_UNKNOWN;
 296     }
 297
 298     // Pango description are never underlined (?)
 299     m_underlined = FALSE;
 300
 301     // Cannot we choose that
 302     m_encoding = wxFONTENCODING_SYSTEM;
 303 #else // GTK 1.x
 304     // get the font parameters from the XLFD
 305     // -------------------------------------
 306
 307     m_faceName = m_nativeFontInfo.GetXFontComponent(wxXLFD_FAMILY);
 308
 309     m_weight = wxFONTWEIGHT_NORMAL;
 310
 311     wxString w = m_nativeFontInfo.GetXFontComponent(wxXLFD_WEIGHT).Upper();
 312     if ( !w.empty() && w != _T('*') )
 313     {
 314         // the test below catches all of BOLD, EXTRABOLD, DEMIBOLD, ULTRABOLD
 315         // and BLACK
 316         if ( ((w[0u] == _T('B') && (!wxStrcmp(w.c_str() + 1, wxT("OLD")) ||
 317                                    !wxStrcmp(w.c_str() + 1, wxT("LACK"))))) ||
 318              wxStrstr(w.c_str() + 1, _T("BOLD")) )
 319         {
 320             m_weight = wxFONTWEIGHT_BOLD;
 321         }
 322         else if ( w == _T("LIGHT") || w == _T("THIN") )
 323         {
 324             m_weight = wxFONTWEIGHT_LIGHT;
 325         }
 326     }
 327
 328     switch ( wxToupper(*m_nativeFontInfo.
 329                             GetXFontComponent(wxXLFD_SLANT).c_str()) )
 330     {
 331         case _T('I'):   // italique
 332             m_style = wxFONTSTYLE_ITALIC;
 333             break;
 334
 335         case _T('O'):   // oblique
 336             m_style = wxFONTSTYLE_SLANT;
 337             break;
 338
 339         default:
 340             m_style = wxFONTSTYLE_NORMAL;
 341     }
 342
 343     long ptSize;
 344     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_POINTSIZE).ToLong(&ptSize) )
 345     {
 346         // size in XLFD is in 10 point units
 347         m_pointSize = (int)(ptSize / 10);
 348     }
 349     else
 350     {
 351         m_pointSize = wxDEFAULT_FONT_SIZE;
 352     }
 353
 354     // examine the spacing: if the font is monospaced, assume wxTELETYPE
 355     // family for compatibility with the old code which used it instead of
 356     // IsFixedWidth()
 357     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING).Upper() == _T('M') )
 358     {
 359         m_family = wxFONTFAMILY_TELETYPE;
 360     }
 361     else // not monospaceed
 362     {
 363         // don't even try guessing it, it doesn't work for too many fonts
 364         // anyhow
 365         m_family = wxFONTFAMILY_UNKNOWN;
 366     }
 367
 368     // X fonts are never underlined...
 369     m_underlined = FALSE;
 370
 371     // deal with font encoding
 372     wxString
 373         registry = m_nativeFontInfo.GetXFontComponent(wxXLFD_REGISTRY).Upper(),
 374         encoding = m_nativeFontInfo.GetXFontComponent(wxXLFD_ENCODING).Upper();
 375
 376     if ( registry == _T("ISO8859") )
 377     {
 378         int cp;
 379         if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
 380         {
 381             m_encoding = (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
 382         }
 383     }
 384     else if ( registry == _T("MICROSOFT") )
 385     {
 386         int cp;
 387         if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
 388         {
 389             m_encoding = (wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
 390         }
 391     }
 392     else if ( registry == _T("KOI8") )
 393     {
 394         m_encoding = wxFONTENCODING_KOI8;
 395     }
 396     else // unknown encoding
 397     {
 398         // may be give a warning here? or use wxFontMapper?
 399         m_encoding = wxFONTENCODING_SYSTEM;
 400     }
 401 #endif // GTK 2.0/1.x
 402 }
 403
 404 wxFontRefData::wxFontRefData( const wxFontRefData& data )
 405              : wxObjectRefData()
 406 {
 407     m_pointSize = data.m_pointSize;
 408     m_family = data.m_family;
 409     m_style = data.m_style;
 410     m_weight = data.m_weight;
 411
 412     m_underlined = data.m_underlined;
 413
 414     m_faceName = data.m_faceName;
 415     m_encoding = data.m_encoding;
 416
 417     m_noAA = data.m_noAA;
 418
 419     // Forces a copy of the internal data.  wxNativeFontInfo should probably
 420     // have a copy ctor and assignment operator to fix this properly but that
 421     // would break binary compatibility...
 422     m_nativeFontInfo.FromString(data.m_nativeFontInfo.ToString());
 423 }
 424
 425 wxFontRefData::wxFontRefData(int size, int family, int style,
 426                              int weight, bool underlined,
 427                              const wxString& faceName,
 428                              wxFontEncoding encoding)
 429 {
 430     Init(size, family, style, weight, underlined, faceName, encoding);
 431 }
 432
 433 wxFontRefData::wxFontRefData(const wxString& fontname)
 434 {
 435     // VZ: FromString() should really work in both cases, doesn't it?
 436 #ifdef __WXGTK20__
 437     m_nativeFontInfo.FromString( fontname );
 438 #else // GTK 1.x
 439     m_nativeFontInfo.SetXFontName(fontname);
 440 #endif // GTK 2.0/1.x
 441
 442     InitFromNative();
 443 }
 444
 445 #ifndef __WXGTK20__
 446 void wxFontRefData::ReInit(const wxString& fontname)
 447 {
 448     m_nativeFontInfo.SetXFontName(fontname);
 449
 450     InitFromNative();
 451 }
 452 #endif
 453
 454 void wxFontRefData::ClearGdkFonts()
 455 {
 456 #ifndef __WXGTK20__
 457     for ( wxScaledFontList::iterator i = m_scaled_xfonts.begin();
 458           i != m_scaled_xfonts.end();
 459           ++i )
 460     {
 461         GdkFont *font = i->second;
 462         gdk_font_unref( font );
 463     }
 464
 465     m_scaled_xfonts.clear();
 466 #endif // GTK 1.x
 467 }
 468
 469 wxFontRefData::~wxFontRefData()
 470 {
 471     ClearGdkFonts();
 472 }
 473
 474 // ----------------------------------------------------------------------------
 475 // wxFontRefData SetXXX()
 476 // ----------------------------------------------------------------------------
 477
 478 void wxFontRefData::SetPointSize(int pointSize)
 479 {
 480     m_pointSize = pointSize;
 481
 482 #ifdef __WXGTK20__
 483     // Get native info
 484     PangoFontDescription *desc = m_nativeFontInfo.description;
 485
 486     pango_font_description_set_size( desc, m_pointSize * PANGO_SCALE );
 487 #else
 488     if ( HasNativeFont() )
 489     {
 490         wxString size;
 491         if ( pointSize == -1 )
 492             size = _T('*');
 493         else
 494             size.Printf(_T("%d"), 10*pointSize);
 495
 496         m_nativeFontInfo.SetXFontComponent(wxXLFD_POINTSIZE, size);
 497     }
 498 #endif
 499 }
 500
 501 void wxFontRefData::SetFamily(int family)
 502 {
 503     m_family = family;
 504
 505     // TODO: what are we supposed to do with m_nativeFontInfo here?
 506 }
 507
 508 void wxFontRefData::SetStyle(int style)
 509 {
 510     m_style = style;
 511
 512 #ifdef __WXGTK20__
 513     // Get native info
 514     PangoFontDescription *desc = m_nativeFontInfo.description;
 515
 516     switch ( style )
 517     {
 518         case wxFONTSTYLE_ITALIC:
 519             pango_font_description_set_style( desc, PANGO_STYLE_ITALIC );
 520             break;
 521         case wxFONTSTYLE_SLANT:
 522             pango_font_description_set_style( desc, PANGO_STYLE_OBLIQUE );
 523             break;
 524         default:
 525             wxFAIL_MSG( _T("unknown font style") );
 526             // fall through
 527         case wxFONTSTYLE_NORMAL:
 528             pango_font_description_set_style( desc, PANGO_STYLE_NORMAL );
 529             break;
 530     }
 531 #else
 532     if ( HasNativeFont() )
 533     {
 534         wxString slant;
 535         switch ( style )
 536         {
 537             case wxFONTSTYLE_ITALIC:
 538                 slant = _T('i');
 539                 break;
 540
 541             case wxFONTSTYLE_SLANT:
 542                 slant = _T('o');
 543                 break;
 544
 545             default:
 546                 wxFAIL_MSG( _T("unknown font style") );
 547                 // fall through
 548
 549             case wxFONTSTYLE_NORMAL:
 550                 slant = _T('r');
 551         }
 552
 553         m_nativeFontInfo.SetXFontComponent(wxXLFD_SLANT, slant);
 554     }
 555 #endif
 556 }
 557
 558 void wxFontRefData::SetWeight(int weight)
 559 {
 560     m_weight = weight;
 561
 562 #ifdef __WXGTK20__
 563     PangoFontDescription *desc = m_nativeFontInfo.description;
 564     switch ( weight )
 565     {
 566         case wxFONTWEIGHT_BOLD:
 567             pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
 568             break;
 569
 570         case wxFONTWEIGHT_LIGHT:
 571             pango_font_description_set_weight(desc, PANGO_WEIGHT_LIGHT);
 572             break;
 573
 574         default:
 575             wxFAIL_MSG( _T("unknown font weight") );
 576             // fall through
 577
 578         case wxFONTWEIGHT_NORMAL:
 579             // unspecified
 580             pango_font_description_set_weight(desc, PANGO_WEIGHT_NORMAL);
 581     }
 582 #else //!__WXGTK20__
 583     if ( HasNativeFont() )
 584     {
 585         wxString boldness;
 586         switch ( weight )
 587         {
 588             case wxFONTWEIGHT_BOLD:
 589                 boldness = _T("bold");
 590                 break;
 591
 592             case wxFONTWEIGHT_LIGHT:
 593                 boldness = _T("light");
 594                 break;
 595
 596             default:
 597                 wxFAIL_MSG( _T("unknown font weight") );
 598                 // fall through
 599
 600             case wxFONTWEIGHT_NORMAL:
 601                 // unspecified
 602                 boldness = _T("medium");
 603         }
 604
 605         m_nativeFontInfo.SetXFontComponent(wxXLFD_WEIGHT, boldness);
 606     }
 607 #endif
 608 }
 609
 610 void wxFontRefData::SetUnderlined(bool underlined)
 611 {
 612     m_underlined = underlined;
 613
 614     // the XLFD doesn't have "underlined" field anyhow
 615 }
 616
 617 void wxFontRefData::SetFaceName(const wxString& facename)
 618 {
 619     m_faceName = facename;
 620
 621 #ifndef __WXGTK20__
 622     if ( HasNativeFont() )
 623     {
 624         m_nativeFontInfo.SetXFontComponent(wxXLFD_FAMILY, facename);
 625     }
 626 #endif
 627 }
 628
 629 void wxFontRefData::SetEncoding(wxFontEncoding encoding)
 630 {
 631     m_encoding = encoding;
 632
 633 #ifndef __WXGTK20__
 634     if ( HasNativeFont() )
 635     {
 636         wxNativeEncodingInfo info;
 637         if ( wxGetNativeFontEncoding(encoding, &info) )
 638         {
 639             m_nativeFontInfo.SetXFontComponent(wxXLFD_REGISTRY, info.xregistry);
 640             m_nativeFontInfo.SetXFontComponent(wxXLFD_ENCODING, info.xencoding);
 641         }
 642     }
 643 #endif
 644 }
 645
 646 void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info)
 647 {
 648     // previously cached fonts shouldn't be used
 649     ClearGdkFonts();
 650
 651     m_nativeFontInfo = info;
 652
 653     // set all the other font parameters from the native font info
 654     InitFromNative();
 655 }
 656
 657 // ----------------------------------------------------------------------------
 658 // wxFont creation
 659 // ----------------------------------------------------------------------------
 660
 661 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 662
 663 void wxFont::Init()
 664 {
 665 }
 666
 667 wxFont::wxFont(const wxNativeFontInfo& info)
 668 {
 669     Init();
 670
 671 #ifdef __WXGTK20__
 672     Create( info.GetPointSize(),
 673             info.GetFamily(),
 674             info.GetStyle(),
 675             info.GetWeight(),
 676             info.GetUnderlined(),
 677             info.GetFaceName(),
 678             info.GetEncoding() );
 679 #else
 680     (void) Create(info.GetXFontName());
 681 #endif
 682 }
 683
 684 bool wxFont::Create( int pointSize,
 685                      int family,
 686                      int style,
 687                      int weight,
 688                      bool underlined,
 689                      const wxString& face,
 690                      wxFontEncoding encoding)
 691 {
 692     UnRef();
 693
 694     m_refData = new wxFontRefData(pointSize, family, style, weight,
 695                                   underlined, face, encoding);
 696
 697     return TRUE;
 698 }
 699
 700 bool wxFont::Create(const wxString& fontname)
 701 {
 702     // VZ: does this really happen?
 703     if ( fontname.empty() )
 704     {
 705         *this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 706
 707         return TRUE;
 708     }
 709
 710     m_refData = new wxFontRefData(fontname);
 711
 712     return TRUE;
 713 }
 714
 715 void wxFont::Unshare()
 716 {
 717     if (!m_refData)
 718     {
 719         m_refData = new wxFontRefData();
 720     }
 721     else
 722     {
 723         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 724         UnRef();
 725         m_refData = ref;
 726     }
 727 }
 728
 729 wxFont::~wxFont()
 730 {
 731 }
 732
 733 // ----------------------------------------------------------------------------
 734 // accessors
 735 // ----------------------------------------------------------------------------
 736
 737 int wxFont::GetPointSize() const
 738 {
 739     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 740
 741     return M_FONTDATA->m_pointSize;
 742 }
 743
 744 wxString wxFont::GetFaceName() const
 745 {
 746     wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
 747
 748     return M_FONTDATA->m_faceName;
 749 }
 750
 751 int wxFont::GetFamily() const
 752 {
 753     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 754
 755     return M_FONTDATA->m_family;
 756 }
 757
 758 int wxFont::GetStyle() const
 759 {
 760     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 761
 762     return M_FONTDATA->m_style;
 763 }
 764
 765 int wxFont::GetWeight() const
 766 {
 767     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 768
 769     return M_FONTDATA->m_weight;
 770 }
 771
 772 bool wxFont::GetUnderlined() const
 773 {
 774     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 775
 776     return M_FONTDATA->m_underlined;
 777 }
 778
 779 wxFontEncoding wxFont::GetEncoding() const
 780 {
 781     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 782
 783     return M_FONTDATA->m_encoding;
 784 }
 785
 786 bool wxFont::GetNoAntiAliasing()
 787 {
 788     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 789
 790     return M_FONTDATA->m_noAA;
 791 }
 792
 793 const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 794 {
 795     wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
 796
 797 #ifndef __WXGTK20__
 798     if ( M_FONTDATA->m_nativeFontInfo.GetXFontName().empty() )
 799         GetInternalFont();
 800 #endif
 801
 802     return &(M_FONTDATA->m_nativeFontInfo);
 803 }
 804
 805 bool wxFont::IsFixedWidth() const
 806 {
 807     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 808
 809 #ifndef __WXGTK20__
 810     if ( M_FONTDATA->HasNativeFont() )
 811     {
 812         // the monospace fonts are supposed to have "M" in the spacing field
 813         wxString spacing = M_FONTDATA->
 814                             m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING);
 815
 816         return spacing.Upper() == _T('M');
 817     }
 818 #endif
 819
 820     return wxFontBase::IsFixedWidth();
 821 }
 822
 823 // ----------------------------------------------------------------------------
 824 // change font attributes
 825 // ----------------------------------------------------------------------------
 826
 827 void wxFont::SetPointSize(int pointSize)
 828 {
 829     Unshare();
 830
 831     M_FONTDATA->SetPointSize(pointSize);
 832 }
 833
 834 void wxFont::SetFamily(int family)
 835 {
 836     Unshare();
 837
 838     M_FONTDATA->SetFamily(family);
 839 }
 840
 841 void wxFont::SetStyle(int style)
 842 {
 843     Unshare();
 844
 845     M_FONTDATA->SetStyle(style);
 846 }
 847
 848 void wxFont::SetWeight(int weight)
 849 {
 850     Unshare();
 851
 852     M_FONTDATA->SetWeight(weight);
 853 }
 854
 855 void wxFont::SetFaceName(const wxString& faceName)
 856 {
 857     Unshare();
 858
 859     M_FONTDATA->SetFaceName(faceName);
 860 }
 861
 862 void wxFont::SetUnderlined(bool underlined)
 863 {
 864     Unshare();
 865
 866     M_FONTDATA->SetUnderlined(underlined);
 867 }
 868
 869 void wxFont::SetEncoding(wxFontEncoding encoding)
 870 {
 871     Unshare();
 872
 873     M_FONTDATA->SetEncoding(encoding);
 874 }
 875
 876 void wxFont::DoSetNativeFontInfo( const wxNativeFontInfo& info )
 877 {
 878     Unshare();
 879
 880     M_FONTDATA->SetNativeFontInfo( info );
 881 }
 882
 883 void wxFont::SetNoAntiAliasing( bool no )
 884 {
 885     Unshare();
 886
 887     M_FONTDATA->SetNoAntiAliasing( no );
 888 }
 889
 890 // ----------------------------------------------------------------------------
 891 // get internal representation of font
 892 // ----------------------------------------------------------------------------
 893
 894 #ifndef __WXGTK20__
 895 static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL;
 896
 897 // this is also used from tbargtk.cpp and tooltip.cpp, hence extern
 898 extern GdkFont *GtkGetDefaultGuiFont()
 899 {
 900     if (!g_systemDefaultGuiFont)
 901     {
 902         GtkWidget *widget = gtk_button_new();
 903         GtkStyle *def = gtk_rc_get_style( widget );
 904         if (def)
 905         {
 906             g_systemDefaultGuiFont = gdk_font_ref( def->font );
 907         }
 908         else
 909         {
 910             def = gtk_widget_get_default_style();
 911             if (def)
 912                 g_systemDefaultGuiFont = gdk_font_ref( def->font );
 913         }
 914         gtk_widget_destroy( widget );
 915     }
 916     else
 917     {
 918         // already have it, but ref it once more before returning
 919         gdk_font_ref(g_systemDefaultGuiFont);
 920     }
 921
 922     return g_systemDefaultGuiFont;
 923 }
 924
 925 GdkFont *wxFont::GetInternalFont( float scale ) const
 926 {
 927     GdkFont *font = (GdkFont *) NULL;
 928
 929     wxCHECK_MSG( Ok(), font, wxT("invalid font") )
 930
 931     long int_scale = long(scale * 100.0 + 0.5); // key for fontlist
 932     int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100);
 933
 934     wxScaledFontList& list = M_FONTDATA->m_scaled_xfonts;
 935     wxScaledFontList::iterator i = list.find(int_scale);
 936     if ( i != list.end() )
 937     {
 938         font = i->second;
 939     }
 940     else // we don't have this font in this size yet
 941     {
 942         if (*this == wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT))
 943         {
 944             font = GtkGetDefaultGuiFont();
 945         }
 946
 947         if ( !font )
 948         {
 949             // do we have the XLFD?
 950             if ( M_FONTDATA->HasNativeFont() )
 951             {
 952                 font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName());
 953             }
 954
 955             // no XLFD of no exact match - try the approximate one now
 956             if ( !font )
 957             {
 958                 wxString xfontname;
 959                 font = wxLoadQueryNearestFont( point_scale,
 960                                                M_FONTDATA->m_family,
 961                                                M_FONTDATA->m_style,
 962                                                M_FONTDATA->m_weight,
 963                                                M_FONTDATA->m_underlined,
 964                                                M_FONTDATA->m_faceName,
 965                                                M_FONTDATA->m_encoding,
 966                                                &xfontname);
 967                 if ( font )
 968                 {
 969                     M_FONTDATA->ReInit(xfontname);
 970                 }
 971             }
 972         }
 973
 974         if ( font )
 975         {
 976             list[int_scale] = font;
 977         }
 978     }
 979
 980     // it's quite useless to make it a wxCHECK because we're going to crash
 981     // anyhow...
 982     wxASSERT_MSG( font, wxT("could not load any font?") );
 983
 984     return font;
 985 }
 986 #endif  // not GTK 2.0
 987