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