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, Julian Smart and Markus Holzem
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // ============================================================================
  11 // declarations
  12 // ============================================================================
  13
  14 // ----------------------------------------------------------------------------
  15 // headers
  16 // ----------------------------------------------------------------------------
  17
  18 #ifdef __GNUG__
  19     #pragma implementation "font.h"
  20 #endif
  21
  22 #include "wx/font.h"
  23 #include "wx/fontutil.h"
  24 #include "wx/cmndata.h"
  25 #include "wx/utils.h"
  26 #include "wx/log.h"
  27 #include "wx/gdicmn.h"
  28 #include "wx/tokenzr.h"
  29 #include "wx/settings.h"
  30
  31 #include <strings.h>
  32
  33 #include "wx/gtk/private.h"
  34 #include <gdk/gdkprivate.h>
  35
  36 // ----------------------------------------------------------------------------
  37 // constants
  38 // ----------------------------------------------------------------------------
  39
  40 // the default size (in points) for the fonts
  41 static const int wxDEFAULT_FONT_SIZE = 12;
  42
  43 // ----------------------------------------------------------------------------
  44 // wxScaledFontList: maps the font sizes to the GDK fonts for the given font
  45 // ----------------------------------------------------------------------------
  46
  47 WX_DECLARE_HASH_MAP(int, GdkFont *, wxIntegerHash, wxIntegerEqual,
  48                     wxScaledFontList);
  49
  50 // ----------------------------------------------------------------------------
  51 // wxFontRefData
  52 // ----------------------------------------------------------------------------
  53
  54 class wxFontRefData : public wxObjectRefData
  55 {
  56 public:
  57     // from broken down font parameters, also default ctor
  58     wxFontRefData(int size = -1,
  59                   int family = wxFONTFAMILY_DEFAULT,
  60                   int style = wxFONTSTYLE_NORMAL,
  61                   int weight = wxFONTWEIGHT_NORMAL,
  62                   bool underlined = FALSE,
  63                   const wxString& faceName = wxEmptyString,
  64                   wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
  65
  66     // from XFLD
  67     wxFontRefData(const wxString& fontname);
  68
  69     // copy ctor
  70     wxFontRefData( const wxFontRefData& data );
  71
  72     virtual ~wxFontRefData();
  73
  74     // do we have the native font info?
  75     bool HasNativeFont() const
  76     {
  77 #ifdef __WXGTK20__
  78         // we always have a Pango font description
  79         return TRUE;
  80 #else // GTK 1.x
  81         // only use m_nativeFontInfo if it had been initialized
  82         return !m_nativeFontInfo.IsDefault();
  83 #endif // GTK 2.0/1.x
  84     }
  85
  86     // setters: all of them also take care to modify m_nativeFontInfo if we
  87     // have it so as to not lose the information not carried by our fields
  88     void SetPointSize(int pointSize);
  89     void SetFamily(int family);
  90     void SetStyle(int style);
  91     void SetWeight(int weight);
  92     void SetUnderlined(bool underlined);
  93     void SetFaceName(const wxString& facename);
  94     void SetEncoding(wxFontEncoding encoding);
  95
  96     void SetNoAntiAliasing( bool no = TRUE ) { m_noAA = no; }
  97     bool GetNoAntiAliasing() { return m_noAA; }
  98
  99     // and this one also modifies all the other font data fields
 100     void SetNativeFontInfo(const wxNativeFontInfo& info);
 101
 102     // debugger helper: shows what the font really is
 103     //
 104     // VZ: I need this as my gdb either shows wildly wrong values or crashes
 105     //     when I ask it to "p fontRefData" :-(
 106 #if defined(__WXDEBUG__) && !defined(__WXGTK20__)
 107     void Dump() const
 108     {
 109         wxPrintf(_T("%s-%s-%s-%d-%d\n"),
 110                  m_faceName.c_str(),
 111                  m_weight == wxFONTWEIGHT_NORMAL
 112                     ? _T("normal")
 113                     : m_weight == wxFONTWEIGHT_BOLD
 114                         ? _T("bold")
 115                         : _T("light"),
 116                  m_style == wxFONTSTYLE_NORMAL ? _T("regular") : _T("italic"),
 117                  m_pointSize,
 118                  m_encoding);
 119     }
 120 #endif // Debug
 121
 122 protected:
 123     // common part of all ctors
 124     void Init(int pointSize,
 125               int family,
 126               int style,
 127               int weight,
 128               bool underlined,
 129               const wxString& faceName,
 130               wxFontEncoding encoding);
 131
 132     // set all fields from (already initialized and valid) m_nativeFontInfo
 133     void InitFromNative();
 134
 135 private:
 136     // clear m_scaled_xfonts if any
 137     void ClearGdkFonts();
 138
 139 #ifndef __WXGTK20__
 140     // the map of font sizes to "GdkFont *"
 141     wxScaledFontList  m_scaled_xfonts;
 142 #endif // GTK 2.0/1.x
 143
 144     int             m_pointSize;
 145     int             m_family,
 146                     m_style,
 147                     m_weight;
 148     bool            m_underlined;
 149     wxString        m_faceName;
 150     wxFontEncoding  m_encoding;  // Unused under GTK 2.0
 151     bool            m_noAA;      // No anti-aliasing
 152
 153     // The native font info, basicly an XFLD under GTK 1.2 and
 154     // the pango font description under GTK 2.0.
 155     wxNativeFontInfo m_nativeFontInfo;
 156
 157     friend class wxFont;
 158 };
 159
 160 // ----------------------------------------------------------------------------
 161 // wxFontRefData
 162 // ----------------------------------------------------------------------------
 163
 164 void wxFontRefData::Init(int pointSize,
 165                          int family,
 166                          int style,
 167                          int weight,
 168                          bool underlined,
 169                          const wxString& faceName,
 170                          wxFontEncoding encoding)
 171 {
 172     m_family = family == wxFONTFAMILY_DEFAULT ? wxFONTFAMILY_SWISS : family;
 173
 174     m_faceName = faceName;
 175
 176     // we accept both wxDEFAULT and wxNORMAL here - should we?
 177     m_style = style == wxDEFAULT ? wxFONTSTYLE_NORMAL : style;
 178     m_weight = weight == wxDEFAULT ? wxFONTWEIGHT_NORMAL : weight;
 179
 180     // and here, do we really want to forbid creation of the font of the size
 181     // 90 (the value of wxDEFAULT)??
 182     m_pointSize = pointSize == wxDEFAULT || pointSize == -1
 183                     ? wxDEFAULT_FONT_SIZE
 184                     : pointSize;
 185
 186     m_underlined = underlined;
 187     m_encoding = encoding;
 188
 189     m_noAA = FALSE;
 190
 191 #ifdef __WXGTK20__
 192     // Create native font info
 193     m_nativeFontInfo.description = pango_font_description_new();
 194
 195     // And set its values
 196     if (!m_faceName.empty())
 197     {
 198        pango_font_description_set_family( m_nativeFontInfo.description, wxGTK_CONV(m_faceName) );
 199     }
 200     else
 201     {
 202         switch (m_family)
 203         {
 204             case wxFONTFAMILY_MODERN:
 205             case wxFONTFAMILY_TELETYPE:
 206                pango_font_description_set_family( m_nativeFontInfo.description, "monospace" );
 207                break;
 208             case wxFONTFAMILY_ROMAN:
 209                pango_font_description_set_family( m_nativeFontInfo.description, "serif" );
 210                break;
 211             case wxFONTFAMILY_SWISS:
 212                // SWISS = sans serif
 213             default:
 214                pango_font_description_set_family( m_nativeFontInfo.description, "sans" );
 215                break;
 216         }
 217     }
 218
 219     SetStyle( m_style );
 220     SetPointSize( m_pointSize );
 221     SetWeight( m_weight );
 222 #endif // GTK 2.0
 223 }
 224
 225 void wxFontRefData::InitFromNative()
 226 {
 227     m_noAA = FALSE;
 228
 229 #ifdef __WXGTK20__
 230     // Get native info
 231     PangoFontDescription *desc = m_nativeFontInfo.description;
 232
 233     // init fields
 234     m_faceName = wxGTK_CONV_BACK( pango_font_description_get_family( desc ) );
 235
 236     m_pointSize = pango_font_description_get_size( desc ) / PANGO_SCALE;
 237
 238     switch (pango_font_description_get_style( desc ))
 239     {
 240         case PANGO_STYLE_NORMAL:
 241             m_style = wxFONTSTYLE_NORMAL;
 242             break;
 243         case PANGO_STYLE_ITALIC:
 244             m_style = wxFONTSTYLE_ITALIC;
 245             break;
 246         case PANGO_STYLE_OBLIQUE:
 247             m_style = wxFONTSTYLE_SLANT;
 248             break;
 249     }
 250
 251     switch (pango_font_description_get_weight( desc ))
 252     {
 253         case PANGO_WEIGHT_ULTRALIGHT:
 254             m_weight = wxFONTWEIGHT_LIGHT;
 255             break;
 256         case PANGO_WEIGHT_LIGHT:
 257             m_weight = wxFONTWEIGHT_LIGHT;
 258             break;
 259         case PANGO_WEIGHT_NORMAL:
 260             m_weight = wxFONTWEIGHT_NORMAL;
 261             break;
 262         case PANGO_WEIGHT_BOLD:
 263             m_weight = wxFONTWEIGHT_BOLD;
 264             break;
 265         case PANGO_WEIGHT_ULTRABOLD:
 266             m_weight = wxFONTWEIGHT_BOLD;
 267             break;
 268         case PANGO_WEIGHT_HEAVY:
 269             m_weight = wxFONTWEIGHT_BOLD;
 270             break;
 271     }
 272
 273     if (m_faceName == wxT("monospace"))
 274     {
 275         m_family = wxFONTFAMILY_TELETYPE;
 276     }
 277     else if (m_faceName == wxT("sans"))
 278     {
 279         m_family = wxFONTFAMILY_SWISS;
 280     }
 281     else if (m_faceName == wxT("serif"))
 282     {
 283         m_family = wxFONTFAMILY_ROMAN;
 284     }
 285     else
 286     {
 287         m_family = wxFONTFAMILY_UNKNOWN;
 288     }
 289
 290     // Pango description are never underlined (?)
 291     m_underlined = FALSE;
 292
 293     // Cannot we choose that
 294     m_encoding = wxFONTENCODING_SYSTEM;
 295 #else // GTK 1.x
 296     // get the font parameters from the XLFD
 297     // -------------------------------------
 298
 299     m_faceName = m_nativeFontInfo.GetXFontComponent(wxXLFD_FAMILY);
 300
 301     m_weight = wxFONTWEIGHT_NORMAL;
 302
 303     wxString w = m_nativeFontInfo.GetXFontComponent(wxXLFD_WEIGHT).Upper();
 304     if ( !w.empty() && w != _T('*') )
 305     {
 306         // the test below catches all of BOLD, EXTRABOLD, DEMIBOLD, ULTRABOLD
 307         // and BLACK
 308         if ( ((w[0u] == _T('B') && (!wxStrcmp(w.c_str() + 1, wxT("OLD")) ||
 309                                    !wxStrcmp(w.c_str() + 1, wxT("LACK"))))) ||
 310              wxStrstr(w.c_str() + 1, _T("BOLD")) )
 311         {
 312             m_weight = wxFONTWEIGHT_BOLD;
 313         }
 314         else if ( w == _T("LIGHT") || w == _T("THIN") )
 315         {
 316             m_weight = wxFONTWEIGHT_LIGHT;
 317         }
 318     }
 319
 320     switch ( wxToupper(*m_nativeFontInfo.
 321                             GetXFontComponent(wxXLFD_SLANT).c_str()) )
 322     {
 323         case _T('I'):   // italique
 324             m_style = wxFONTSTYLE_ITALIC;
 325             break;
 326
 327         case _T('O'):   // oblique
 328             m_style = wxFONTSTYLE_SLANT;
 329             break;
 330
 331         default:
 332             m_style = wxFONTSTYLE_NORMAL;
 333     }
 334
 335     long ptSize;
 336     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_POINTSIZE).ToLong(&ptSize) )
 337     {
 338         // size in XLFD is in 10 point units
 339         m_pointSize = (int)(ptSize / 10);
 340     }
 341     else
 342     {
 343         m_pointSize = wxDEFAULT_FONT_SIZE;
 344     }
 345
 346     // examine the spacing: if the font is monospaced, assume wxTELETYPE
 347     // family for compatibility with the old code which used it instead of
 348     // IsFixedWidth()
 349     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING).Upper() == _T('M') )
 350     {
 351         m_family = wxFONTFAMILY_TELETYPE;
 352     }
 353     else // not monospaceed
 354     {
 355         // don't even try guessing it, it doesn't work for too many fonts
 356         // anyhow
 357         m_family = wxFONTFAMILY_UNKNOWN;
 358     }
 359
 360     // X fonts are never underlined...
 361     m_underlined = FALSE;
 362
 363     // deal with font encoding
 364     wxString
 365         registry = m_nativeFontInfo.GetXFontComponent(wxXLFD_REGISTRY).Upper(),
 366         encoding = m_nativeFontInfo.GetXFontComponent(wxXLFD_ENCODING).Upper();
 367
 368     if ( registry == _T("ISO8859") )
 369     {
 370         int cp;
 371         if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
 372         {
 373             m_encoding = (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
 374         }
 375     }
 376     else if ( registry == _T("MICROSOFT") )
 377     {
 378         int cp;
 379         if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
 380         {
 381             m_encoding = (wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
 382         }
 383     }
 384     else if ( registry == _T("KOI8") )
 385     {
 386         m_encoding = wxFONTENCODING_KOI8;
 387     }
 388     else // unknown encoding
 389     {
 390         // may be give a warning here? or use wxFontMapper?
 391         m_encoding = wxFONTENCODING_SYSTEM;
 392     }
 393 #endif // GTK 2.0/1.x
 394 }
 395
 396 wxFontRefData::wxFontRefData( const wxFontRefData& data )
 397              : wxObjectRefData()
 398 {
 399     m_pointSize = data.m_pointSize;
 400     m_family = data.m_family;
 401     m_style = data.m_style;
 402     m_weight = data.m_weight;
 403
 404     m_underlined = data.m_underlined;
 405
 406     m_faceName = data.m_faceName;
 407     m_encoding = data.m_encoding;
 408
 409     m_noAA = data.m_noAA;
 410
 411     // Forces a copy of the internal data.  wxNativeFontInfo should probably
 412     // have a copy ctor and assignment operator to fix this properly but that
 413     // would break binary compatibility...
 414     m_nativeFontInfo.FromString(data.m_nativeFontInfo.ToString());
 415 }
 416
 417 wxFontRefData::wxFontRefData(int size, int family, int style,
 418                              int weight, bool underlined,
 419                              const wxString& faceName,
 420                              wxFontEncoding encoding)
 421 {
 422     Init(size, family, style, weight, underlined, faceName, encoding);
 423 }
 424
 425 wxFontRefData::wxFontRefData(const wxString& fontname)
 426 {
 427     // VZ: FromString() should really work in both cases, doesn't it?
 428 #ifdef __WXGTK20__
 429     m_nativeFontInfo.FromString( fontname );
 430 #else // GTK 1.x
 431     m_nativeFontInfo.SetXFontName(fontname);
 432 #endif // GTK 2.0/1.x
 433
 434     InitFromNative();
 435 }
 436
 437 void wxFontRefData::ClearGdkFonts()
 438 {
 439 #ifndef __WXGTK20__
 440     for ( wxScaledFontList::iterator i = m_scaled_xfonts.begin();
 441           i != m_scaled_xfonts.end();
 442           ++i )
 443     {
 444         GdkFont *font = i->second;
 445         gdk_font_unref( font );
 446     }
 447
 448     m_scaled_xfonts.clear();
 449 #endif // GTK 1.x
 450 }
 451
 452 wxFontRefData::~wxFontRefData()
 453 {
 454     ClearGdkFonts();
 455 }
 456
 457 // ----------------------------------------------------------------------------
 458 // wxFontRefData SetXXX()
 459 // ----------------------------------------------------------------------------
 460
 461 void wxFontRefData::SetPointSize(int pointSize)
 462 {
 463     m_pointSize = pointSize;
 464
 465 #ifdef __WXGTK20__
 466     // Get native info
 467     PangoFontDescription *desc = m_nativeFontInfo.description;
 468
 469     pango_font_description_set_size( desc, m_pointSize * PANGO_SCALE );
 470 #else
 471     if ( HasNativeFont() )
 472     {
 473         wxString size;
 474         if ( pointSize == -1 )
 475             size = _T('*');
 476         else
 477             size.Printf(_T("%d"), 10*pointSize);
 478
 479         m_nativeFontInfo.SetXFontComponent(wxXLFD_POINTSIZE, size);
 480     }
 481 #endif
 482 }
 483
 484 void wxFontRefData::SetFamily(int family)
 485 {
 486     m_family = family;
 487
 488     // TODO: what are we supposed to do with m_nativeFontInfo here?
 489 }
 490
 491 void wxFontRefData::SetStyle(int style)
 492 {
 493     m_style = style;
 494
 495 #ifdef __WXGTK20__
 496     // Get native info
 497     PangoFontDescription *desc = m_nativeFontInfo.description;
 498
 499     switch ( style )
 500     {
 501         case wxFONTSTYLE_ITALIC:
 502             pango_font_description_set_style( desc, PANGO_STYLE_ITALIC );
 503             break;
 504         case wxFONTSTYLE_SLANT:
 505             pango_font_description_set_style( desc, PANGO_STYLE_OBLIQUE );
 506             break;
 507         default:
 508             wxFAIL_MSG( _T("unknown font style") );
 509             // fall through
 510         case wxFONTSTYLE_NORMAL:
 511             pango_font_description_set_style( desc, PANGO_STYLE_NORMAL );
 512             break;
 513     }
 514 #else
 515     if ( HasNativeFont() )
 516     {
 517         wxString slant;
 518         switch ( style )
 519         {
 520             case wxFONTSTYLE_ITALIC:
 521                 slant = _T('i');
 522                 break;
 523
 524             case wxFONTSTYLE_SLANT:
 525                 slant = _T('o');
 526                 break;
 527
 528             default:
 529                 wxFAIL_MSG( _T("unknown font style") );
 530                 // fall through
 531
 532             case wxFONTSTYLE_NORMAL:
 533                 slant = _T('r');
 534         }
 535
 536         m_nativeFontInfo.SetXFontComponent(wxXLFD_SLANT, slant);
 537     }
 538 #endif
 539 }
 540
 541 void wxFontRefData::SetWeight(int weight)
 542 {
 543     m_weight = weight;
 544
 545 #ifdef __WXGTK20__
 546     PangoFontDescription *desc = m_nativeFontInfo.description;
 547     switch ( weight )
 548     {
 549         case wxFONTWEIGHT_BOLD:
 550             pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
 551             break;
 552
 553         case wxFONTWEIGHT_LIGHT:
 554             pango_font_description_set_weight(desc, PANGO_WEIGHT_LIGHT);
 555             break;
 556
 557         default:
 558             wxFAIL_MSG( _T("unknown font weight") );
 559             // fall through
 560
 561         case wxFONTWEIGHT_NORMAL:
 562             // unspecified
 563             pango_font_description_set_weight(desc, PANGO_WEIGHT_NORMAL);
 564     }
 565 #else //!__WXGTK20__
 566     if ( HasNativeFont() )
 567     {
 568         wxString boldness;
 569         switch ( weight )
 570         {
 571             case wxFONTWEIGHT_BOLD:
 572                 boldness = _T("bold");
 573                 break;
 574
 575             case wxFONTWEIGHT_LIGHT:
 576                 boldness = _T("light");
 577                 break;
 578
 579             default:
 580                 wxFAIL_MSG( _T("unknown font weight") );
 581                 // fall through
 582
 583             case wxFONTWEIGHT_NORMAL:
 584                 // unspecified
 585                 boldness = _T("medium");
 586         }
 587
 588         m_nativeFontInfo.SetXFontComponent(wxXLFD_WEIGHT, boldness);
 589     }
 590 #endif
 591 }
 592
 593 void wxFontRefData::SetUnderlined(bool underlined)
 594 {
 595     m_underlined = underlined;
 596
 597     // the XLFD doesn't have "underlined" field anyhow
 598 }
 599
 600 void wxFontRefData::SetFaceName(const wxString& facename)
 601 {
 602     m_faceName = facename;
 603
 604 #ifndef __WXGTK20__
 605     if ( HasNativeFont() )
 606     {
 607         m_nativeFontInfo.SetXFontComponent(wxXLFD_FAMILY, facename);
 608     }
 609 #endif
 610 }
 611
 612 void wxFontRefData::SetEncoding(wxFontEncoding encoding)
 613 {
 614     m_encoding = encoding;
 615
 616 #ifndef __WXGTK20__
 617     if ( HasNativeFont() )
 618     {
 619         wxNativeEncodingInfo info;
 620         if ( wxGetNativeFontEncoding(encoding, &info) )
 621         {
 622             m_nativeFontInfo.SetXFontComponent(wxXLFD_REGISTRY, info.xregistry);
 623             m_nativeFontInfo.SetXFontComponent(wxXLFD_ENCODING, info.xencoding);
 624         }
 625     }
 626 #endif
 627 }
 628
 629 void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info)
 630 {
 631     // previously cached fonts shouldn't be used
 632     ClearGdkFonts();
 633
 634     m_nativeFontInfo = info;
 635
 636     // set all the other font parameters from the native font info
 637     InitFromNative();
 638 }
 639
 640 // ----------------------------------------------------------------------------
 641 // wxFont creation
 642 // ----------------------------------------------------------------------------
 643
 644 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 645
 646 void wxFont::Init()
 647 {
 648 }
 649
 650 wxFont::wxFont(const wxNativeFontInfo& info)
 651 {
 652     Init();
 653
 654 #ifdef __WXGTK20__
 655     Create( info.GetPointSize(),
 656             info.GetFamily(),
 657             info.GetStyle(),
 658             info.GetWeight(),
 659             info.GetUnderlined(),
 660             info.GetFaceName(),
 661             info.GetEncoding() );
 662 #else
 663     (void) Create(info.GetXFontName());
 664 #endif
 665 }
 666
 667 bool wxFont::Create( int pointSize,
 668                      int family,
 669                      int style,
 670                      int weight,
 671                      bool underlined,
 672                      const wxString& face,
 673                      wxFontEncoding encoding)
 674 {
 675     UnRef();
 676
 677     m_refData = new wxFontRefData(pointSize, family, style, weight,
 678                                   underlined, face, encoding);
 679
 680     return TRUE;
 681 }
 682
 683 bool wxFont::Create(const wxString& fontname)
 684 {
 685     // VZ: does this really happen?
 686     if ( fontname.empty() )
 687     {
 688         *this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 689
 690         return TRUE;
 691     }
 692
 693     m_refData = new wxFontRefData(fontname);
 694
 695     return TRUE;
 696 }
 697
 698 void wxFont::Unshare()
 699 {
 700     if (!m_refData)
 701     {
 702         m_refData = new wxFontRefData();
 703     }
 704     else
 705     {
 706         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 707         UnRef();
 708         m_refData = ref;
 709     }
 710 }
 711
 712 wxFont::~wxFont()
 713 {
 714 }
 715
 716 // ----------------------------------------------------------------------------
 717 // accessors
 718 // ----------------------------------------------------------------------------
 719
 720 int wxFont::GetPointSize() const
 721 {
 722     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 723
 724     return M_FONTDATA->m_pointSize;
 725 }
 726
 727 wxString wxFont::GetFaceName() const
 728 {
 729     wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
 730
 731     return M_FONTDATA->m_faceName;
 732 }
 733
 734 int wxFont::GetFamily() const
 735 {
 736     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 737
 738     return M_FONTDATA->m_family;
 739 }
 740
 741 int wxFont::GetStyle() const
 742 {
 743     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 744
 745     return M_FONTDATA->m_style;
 746 }
 747
 748 int wxFont::GetWeight() const
 749 {
 750     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 751
 752     return M_FONTDATA->m_weight;
 753 }
 754
 755 bool wxFont::GetUnderlined() const
 756 {
 757     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 758
 759     return M_FONTDATA->m_underlined;
 760 }
 761
 762 wxFontEncoding wxFont::GetEncoding() const
 763 {
 764     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 765
 766     return M_FONTDATA->m_encoding;
 767 }
 768
 769 bool wxFont::GetNoAntiAliasing()
 770 {
 771     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 772
 773     return M_FONTDATA->m_noAA;
 774 }
 775
 776 wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 777 {
 778     wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
 779
 780 #ifndef __WXGTK20__  // ???
 781     if ( M_FONTDATA->m_nativeFontInfo.GetXFontName().empty() )
 782         GetInternalFont();
 783 #endif
 784
 785     return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo);
 786 }
 787
 788 bool wxFont::IsFixedWidth() const
 789 {
 790     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 791
 792 #ifndef __WXGTK20__
 793     if ( M_FONTDATA->HasNativeFont() )
 794     {
 795         // the monospace fonts are supposed to have "M" in the spacing field
 796         wxString spacing = M_FONTDATA->
 797                             m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING);
 798
 799         return spacing.Upper() == _T('M');
 800     }
 801 #endif
 802
 803     return wxFontBase::IsFixedWidth();
 804 }
 805
 806 // ----------------------------------------------------------------------------
 807 // change font attributes
 808 // ----------------------------------------------------------------------------
 809
 810 void wxFont::SetPointSize(int pointSize)
 811 {
 812     Unshare();
 813
 814     M_FONTDATA->SetPointSize(pointSize);
 815 }
 816
 817 void wxFont::SetFamily(int family)
 818 {
 819     Unshare();
 820
 821     M_FONTDATA->SetFamily(family);
 822 }
 823
 824 void wxFont::SetStyle(int style)
 825 {
 826     Unshare();
 827
 828     M_FONTDATA->SetStyle(style);
 829 }
 830
 831 void wxFont::SetWeight(int weight)
 832 {
 833     Unshare();
 834
 835     M_FONTDATA->SetWeight(weight);
 836 }
 837
 838 void wxFont::SetFaceName(const wxString& faceName)
 839 {
 840     Unshare();
 841
 842     M_FONTDATA->SetFaceName(faceName);
 843 }
 844
 845 void wxFont::SetUnderlined(bool underlined)
 846 {
 847     Unshare();
 848
 849     M_FONTDATA->SetUnderlined(underlined);
 850 }
 851
 852 void wxFont::SetEncoding(wxFontEncoding encoding)
 853 {
 854     Unshare();
 855
 856     M_FONTDATA->SetEncoding(encoding);
 857 }
 858
 859 void wxFont::SetNativeFontInfo( const wxNativeFontInfo& info )
 860 {
 861     Unshare();
 862
 863     M_FONTDATA->SetNativeFontInfo( info );
 864 }
 865
 866 void wxFont::SetNoAntiAliasing( bool no )
 867 {
 868     Unshare();
 869
 870     M_FONTDATA->SetNoAntiAliasing( no );
 871 }
 872
 873 // ----------------------------------------------------------------------------
 874 // get internal representation of font
 875 // ----------------------------------------------------------------------------
 876
 877 static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL;
 878
 879 // this is also used from tbargtk.cpp and tooltip.cpp, hence extern
 880 extern GdkFont *GtkGetDefaultGuiFont()
 881 {
 882     if (!g_systemDefaultGuiFont)
 883     {
 884         GtkWidget *widget = gtk_button_new();
 885         GtkStyle *def = gtk_rc_get_style( widget );
 886         if (def)
 887         {
 888             g_systemDefaultGuiFont = gdk_font_ref( GET_STYLE_FONT(def) );
 889         }
 890         else
 891         {
 892             def = gtk_widget_get_default_style();
 893             if (def)
 894                 g_systemDefaultGuiFont = gdk_font_ref( GET_STYLE_FONT(def) );
 895         }
 896         gtk_widget_destroy( widget );
 897     }
 898     else
 899     {
 900         // already have it, but ref it once more before returning
 901         gdk_font_ref(g_systemDefaultGuiFont);
 902     }
 903
 904     return g_systemDefaultGuiFont;
 905 }
 906
 907 GdkFont *wxFont::GetInternalFont( float scale ) const
 908 {
 909 #ifdef __WXGTK20__
 910     // Deprecated for GTK 2.0 and should be removed
 911     // in the 2.5 tree.
 912     wxFAIL_MSG( wxT("No longer used") );
 913
 914     return (GdkFont *) NULL;
 915
 916 #else // GTK 1.x
 917     GdkFont *font = (GdkFont *) NULL;
 918
 919     wxCHECK_MSG( Ok(), font, wxT("invalid font") )
 920
 921     long int_scale = long(scale * 100.0 + 0.5); // key for fontlist
 922     int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100);
 923
 924     wxScaledFontList& list = M_FONTDATA->m_scaled_xfonts;
 925     wxScaledFontList::iterator i = list.find(int_scale);
 926     if ( i != list.end() )
 927     {
 928         font = i->second;
 929     }
 930     else // we don't have this font in this size yet
 931     {
 932         if (*this == wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT))
 933         {
 934             font = GtkGetDefaultGuiFont();
 935         }
 936
 937         if ( !font )
 938         {
 939             // do we have the XLFD?
 940             if ( M_FONTDATA->HasNativeFont() )
 941             {
 942                 font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName());
 943             }
 944
 945             // no XLFD of no exact match - try the approximate one now
 946             if ( !font )
 947             {
 948                 wxString xfontname;
 949                 font = wxLoadQueryNearestFont( point_scale,
 950                                                M_FONTDATA->m_family,
 951                                                M_FONTDATA->m_style,
 952                                                M_FONTDATA->m_weight,
 953                                                M_FONTDATA->m_underlined,
 954                                                M_FONTDATA->m_faceName,
 955                                                M_FONTDATA->m_encoding,
 956                                                &xfontname);
 957                 if ( font )
 958                 {
 959                     M_FONTDATA->m_nativeFontInfo.SetXFontName(xfontname);
 960                 }
 961             }
 962         }
 963
 964         if ( font )
 965         {
 966             list[int_scale] = font;
 967         }
 968     }
 969
 970     // it's quite useless to make it a wxCHECK because we're going to crash
 971     // anyhow...
 972     wxASSERT_MSG( font, wxT("could not load any font?") );
 973
 974     return font;
 975 #endif  // GTK 2.0/1.x
 976 }
 977