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     // Pango sometimes needs to have a size
 245     int pango_size = pango_font_description_get_size( desc );
 246     if (pango_size == 0)
 247         pango_font_description_set_size( desc, 12 * PANGO_SCALE);
 248
 249     m_pointSize = pango_font_description_get_size( desc ) / PANGO_SCALE;
 250
 251     switch (pango_font_description_get_style( desc ))
 252     {
 253         case PANGO_STYLE_NORMAL:
 254             m_style = wxFONTSTYLE_NORMAL;
 255             break;
 256         case PANGO_STYLE_ITALIC:
 257             m_style = wxFONTSTYLE_ITALIC;
 258             break;
 259         case PANGO_STYLE_OBLIQUE:
 260             m_style = wxFONTSTYLE_SLANT;
 261             break;
 262     }
 263
 264     switch (pango_font_description_get_weight( desc ))
 265     {
 266         case PANGO_WEIGHT_ULTRALIGHT:
 267             m_weight = wxFONTWEIGHT_LIGHT;
 268             break;
 269         case PANGO_WEIGHT_LIGHT:
 270             m_weight = wxFONTWEIGHT_LIGHT;
 271             break;
 272         case PANGO_WEIGHT_NORMAL:
 273             m_weight = wxFONTWEIGHT_NORMAL;
 274             break;
 275         case PANGO_WEIGHT_BOLD:
 276             m_weight = wxFONTWEIGHT_BOLD;
 277             break;
 278         case PANGO_WEIGHT_ULTRABOLD:
 279             m_weight = wxFONTWEIGHT_BOLD;
 280             break;
 281         case PANGO_WEIGHT_HEAVY:
 282             m_weight = wxFONTWEIGHT_BOLD;
 283             break;
 284     }
 285
 286     if (m_faceName == wxT("monospace"))
 287     {
 288         m_family = wxFONTFAMILY_TELETYPE;
 289     }
 290     else if (m_faceName == wxT("sans"))
 291     {
 292         m_family = wxFONTFAMILY_SWISS;
 293     }
 294     else if (m_faceName == wxT("serif"))
 295     {
 296         m_family = wxFONTFAMILY_ROMAN;
 297     }
 298     else
 299     {
 300         m_family = wxFONTFAMILY_UNKNOWN;
 301     }
 302
 303     // Pango description are never underlined (?)
 304     m_underlined = FALSE;
 305
 306     // Cannot we choose that
 307     m_encoding = wxFONTENCODING_SYSTEM;
 308 #else // GTK 1.x
 309     // get the font parameters from the XLFD
 310     // -------------------------------------
 311
 312     m_faceName = m_nativeFontInfo.GetXFontComponent(wxXLFD_FAMILY);
 313
 314     m_weight = wxFONTWEIGHT_NORMAL;
 315
 316     wxString w = m_nativeFontInfo.GetXFontComponent(wxXLFD_WEIGHT).Upper();
 317     if ( !w.empty() && w != _T('*') )
 318     {
 319         // the test below catches all of BOLD, EXTRABOLD, DEMIBOLD, ULTRABOLD
 320         // and BLACK
 321         if ( ((w[0u] == _T('B') && (!wxStrcmp(w.c_str() + 1, wxT("OLD")) ||
 322                                    !wxStrcmp(w.c_str() + 1, wxT("LACK"))))) ||
 323              wxStrstr(w.c_str() + 1, _T("BOLD")) )
 324         {
 325             m_weight = wxFONTWEIGHT_BOLD;
 326         }
 327         else if ( w == _T("LIGHT") || w == _T("THIN") )
 328         {
 329             m_weight = wxFONTWEIGHT_LIGHT;
 330         }
 331     }
 332
 333     switch ( wxToupper(*m_nativeFontInfo.
 334                             GetXFontComponent(wxXLFD_SLANT).c_str()) )
 335     {
 336         case _T('I'):   // italique
 337             m_style = wxFONTSTYLE_ITALIC;
 338             break;
 339
 340         case _T('O'):   // oblique
 341             m_style = wxFONTSTYLE_SLANT;
 342             break;
 343
 344         default:
 345             m_style = wxFONTSTYLE_NORMAL;
 346     }
 347
 348     long ptSize;
 349     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_POINTSIZE).ToLong(&ptSize) )
 350     {
 351         // size in XLFD is in 10 point units
 352         m_pointSize = (int)(ptSize / 10);
 353     }
 354     else
 355     {
 356         m_pointSize = wxDEFAULT_FONT_SIZE;
 357     }
 358
 359     // examine the spacing: if the font is monospaced, assume wxTELETYPE
 360     // family for compatibility with the old code which used it instead of
 361     // IsFixedWidth()
 362     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING).Upper() == _T('M') )
 363     {
 364         m_family = wxFONTFAMILY_TELETYPE;
 365     }
 366     else // not monospaceed
 367     {
 368         // don't even try guessing it, it doesn't work for too many fonts
 369         // anyhow
 370         m_family = wxFONTFAMILY_UNKNOWN;
 371     }
 372
 373     // X fonts are never underlined...
 374     m_underlined = FALSE;
 375
 376     // deal with font encoding
 377     wxString
 378         registry = m_nativeFontInfo.GetXFontComponent(wxXLFD_REGISTRY).Upper(),
 379         encoding = m_nativeFontInfo.GetXFontComponent(wxXLFD_ENCODING).Upper();
 380
 381     if ( registry == _T("ISO8859") )
 382     {
 383         int cp;
 384         if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
 385         {
 386             m_encoding = (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
 387         }
 388     }
 389     else if ( registry == _T("MICROSOFT") )
 390     {
 391         int cp;
 392         if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
 393         {
 394             m_encoding = (wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
 395         }
 396     }
 397     else if ( registry == _T("KOI8") )
 398     {
 399         m_encoding = wxFONTENCODING_KOI8;
 400     }
 401     else // unknown encoding
 402     {
 403         // may be give a warning here? or use wxFontMapper?
 404         m_encoding = wxFONTENCODING_SYSTEM;
 405     }
 406 #endif // GTK 2.0/1.x
 407 }
 408
 409 wxFontRefData::wxFontRefData( const wxFontRefData& data )
 410              : wxObjectRefData()
 411 {
 412     m_pointSize = data.m_pointSize;
 413     m_family = data.m_family;
 414     m_style = data.m_style;
 415     m_weight = data.m_weight;
 416
 417     m_underlined = data.m_underlined;
 418
 419     m_faceName = data.m_faceName;
 420     m_encoding = data.m_encoding;
 421
 422     m_noAA = data.m_noAA;
 423
 424     // Forces a copy of the internal data.  wxNativeFontInfo should probably
 425     // have a copy ctor and assignment operator to fix this properly but that
 426     // would break binary compatibility...
 427     m_nativeFontInfo.FromString(data.m_nativeFontInfo.ToString());
 428 }
 429
 430 wxFontRefData::wxFontRefData(int size, int family, int style,
 431                              int weight, bool underlined,
 432                              const wxString& faceName,
 433                              wxFontEncoding encoding)
 434 {
 435     Init(size, family, style, weight, underlined, faceName, encoding);
 436 }
 437
 438 wxFontRefData::wxFontRefData(const wxString& fontname)
 439 {
 440     // VZ: FromString() should really work in both cases, doesn't it?
 441 #ifdef __WXGTK20__
 442     m_nativeFontInfo.FromString( fontname );
 443 #else // GTK 1.x
 444     m_nativeFontInfo.SetXFontName(fontname);
 445 #endif // GTK 2.0/1.x
 446
 447     InitFromNative();
 448 }
 449
 450 #ifndef __WXGTK20__
 451
 452 void wxFontRefData::ReInit(const wxString& fontname)
 453 {
 454     // calling InitFromNative() resets m_underlined flag as X11 fonts are never
 455     // underlined, but we don't want to lose its old value here so save it ...
 456     bool underlined = m_underlined;
 457
 458     m_nativeFontInfo.SetXFontName(fontname);
 459
 460     InitFromNative();
 461
 462     // ... and restore it now
 463     m_underlined = underlined;
 464 }
 465
 466 #endif // !__WXGTK20__
 467
 468 void wxFontRefData::ClearGdkFonts()
 469 {
 470 #ifndef __WXGTK20__
 471     for ( wxScaledFontList::iterator i = m_scaled_xfonts.begin();
 472           i != m_scaled_xfonts.end();
 473           ++i )
 474     {
 475         GdkFont *font = i->second;
 476         gdk_font_unref( font );
 477     }
 478
 479     m_scaled_xfonts.clear();
 480 #endif // GTK 1.x
 481 }
 482
 483 wxFontRefData::~wxFontRefData()
 484 {
 485     ClearGdkFonts();
 486 }
 487
 488 // ----------------------------------------------------------------------------
 489 // wxFontRefData SetXXX()
 490 // ----------------------------------------------------------------------------
 491
 492 void wxFontRefData::SetPointSize(int pointSize)
 493 {
 494     m_pointSize = pointSize;
 495
 496 #ifdef __WXGTK20__
 497     // Get native info
 498     PangoFontDescription *desc = m_nativeFontInfo.description;
 499
 500     pango_font_description_set_size( desc, m_pointSize * PANGO_SCALE );
 501 #else
 502     if ( HasNativeFont() )
 503     {
 504         wxString size;
 505         if ( pointSize == -1 )
 506             size = _T('*');
 507         else
 508             size.Printf(_T("%d"), 10*pointSize);
 509
 510         m_nativeFontInfo.SetXFontComponent(wxXLFD_POINTSIZE, size);
 511     }
 512 #endif
 513 }
 514
 515 void wxFontRefData::SetFamily(int family)
 516 {
 517     m_family = family;
 518
 519     // TODO: what are we supposed to do with m_nativeFontInfo here?
 520 }
 521
 522 void wxFontRefData::SetStyle(int style)
 523 {
 524     m_style = style;
 525
 526 #ifdef __WXGTK20__
 527     // Get native info
 528     PangoFontDescription *desc = m_nativeFontInfo.description;
 529
 530     switch ( style )
 531     {
 532         case wxFONTSTYLE_ITALIC:
 533             pango_font_description_set_style( desc, PANGO_STYLE_ITALIC );
 534             break;
 535         case wxFONTSTYLE_SLANT:
 536             pango_font_description_set_style( desc, PANGO_STYLE_OBLIQUE );
 537             break;
 538         default:
 539             wxFAIL_MSG( _T("unknown font style") );
 540             // fall through
 541         case wxFONTSTYLE_NORMAL:
 542             pango_font_description_set_style( desc, PANGO_STYLE_NORMAL );
 543             break;
 544     }
 545 #else
 546     if ( HasNativeFont() )
 547     {
 548         wxString slant;
 549         switch ( style )
 550         {
 551             case wxFONTSTYLE_ITALIC:
 552                 slant = _T('i');
 553                 break;
 554
 555             case wxFONTSTYLE_SLANT:
 556                 slant = _T('o');
 557                 break;
 558
 559             default:
 560                 wxFAIL_MSG( _T("unknown font style") );
 561                 // fall through
 562
 563             case wxFONTSTYLE_NORMAL:
 564                 slant = _T('r');
 565         }
 566
 567         m_nativeFontInfo.SetXFontComponent(wxXLFD_SLANT, slant);
 568     }
 569 #endif
 570 }
 571
 572 void wxFontRefData::SetWeight(int weight)
 573 {
 574     m_weight = weight;
 575
 576 #ifdef __WXGTK20__
 577     PangoFontDescription *desc = m_nativeFontInfo.description;
 578     switch ( weight )
 579     {
 580         case wxFONTWEIGHT_BOLD:
 581             pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
 582             break;
 583
 584         case wxFONTWEIGHT_LIGHT:
 585             pango_font_description_set_weight(desc, PANGO_WEIGHT_LIGHT);
 586             break;
 587
 588         default:
 589             wxFAIL_MSG( _T("unknown font weight") );
 590             // fall through
 591
 592         case wxFONTWEIGHT_NORMAL:
 593             // unspecified
 594             pango_font_description_set_weight(desc, PANGO_WEIGHT_NORMAL);
 595     }
 596 #else //!__WXGTK20__
 597     if ( HasNativeFont() )
 598     {
 599         wxString boldness;
 600         switch ( weight )
 601         {
 602             case wxFONTWEIGHT_BOLD:
 603                 boldness = _T("bold");
 604                 break;
 605
 606             case wxFONTWEIGHT_LIGHT:
 607                 boldness = _T("light");
 608                 break;
 609
 610             default:
 611                 wxFAIL_MSG( _T("unknown font weight") );
 612                 // fall through
 613
 614             case wxFONTWEIGHT_NORMAL:
 615                 // unspecified
 616                 boldness = _T("medium");
 617         }
 618
 619         m_nativeFontInfo.SetXFontComponent(wxXLFD_WEIGHT, boldness);
 620     }
 621 #endif
 622 }
 623
 624 void wxFontRefData::SetUnderlined(bool underlined)
 625 {
 626     m_underlined = underlined;
 627
 628     // the XLFD doesn't have "underlined" field anyhow
 629 }
 630
 631 void wxFontRefData::SetFaceName(const wxString& facename)
 632 {
 633     m_faceName = facename;
 634
 635 #ifndef __WXGTK20__
 636     if ( HasNativeFont() )
 637     {
 638         m_nativeFontInfo.SetXFontComponent(wxXLFD_FAMILY, facename);
 639     }
 640 #endif
 641 }
 642
 643 void wxFontRefData::SetEncoding(wxFontEncoding encoding)
 644 {
 645     m_encoding = encoding;
 646
 647 #ifndef __WXGTK20__
 648     if ( HasNativeFont() )
 649     {
 650         wxNativeEncodingInfo info;
 651         if ( wxGetNativeFontEncoding(encoding, &info) )
 652         {
 653             m_nativeFontInfo.SetXFontComponent(wxXLFD_REGISTRY, info.xregistry);
 654             m_nativeFontInfo.SetXFontComponent(wxXLFD_ENCODING, info.xencoding);
 655         }
 656     }
 657 #endif
 658 }
 659
 660 void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info)
 661 {
 662     // previously cached fonts shouldn't be used
 663     ClearGdkFonts();
 664
 665     m_nativeFontInfo = info;
 666
 667     // set all the other font parameters from the native font info
 668     InitFromNative();
 669 }
 670
 671 // ----------------------------------------------------------------------------
 672 // wxFont creation
 673 // ----------------------------------------------------------------------------
 674
 675 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 676
 677 void wxFont::Init()
 678 {
 679 }
 680
 681 wxFont::wxFont(const wxNativeFontInfo& info)
 682 {
 683     Init();
 684
 685 #ifdef __WXGTK20__
 686     Create( info.GetPointSize(),
 687             info.GetFamily(),
 688             info.GetStyle(),
 689             info.GetWeight(),
 690             info.GetUnderlined(),
 691             info.GetFaceName(),
 692             info.GetEncoding() );
 693 #else
 694     (void) Create(info.GetXFontName());
 695 #endif
 696 }
 697
 698 bool wxFont::Create( int pointSize,
 699                      int family,
 700                      int style,
 701                      int weight,
 702                      bool underlined,
 703                      const wxString& face,
 704                      wxFontEncoding encoding)
 705 {
 706     UnRef();
 707
 708     m_refData = new wxFontRefData(pointSize, family, style, weight,
 709                                   underlined, face, encoding);
 710
 711     return TRUE;
 712 }
 713
 714 bool wxFont::Create(const wxString& fontname)
 715 {
 716     // VZ: does this really happen?
 717     if ( fontname.empty() )
 718     {
 719         *this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 720
 721         return TRUE;
 722     }
 723
 724     m_refData = new wxFontRefData(fontname);
 725
 726     return TRUE;
 727 }
 728
 729 void wxFont::Unshare()
 730 {
 731     if (!m_refData)
 732     {
 733         m_refData = new wxFontRefData();
 734     }
 735     else
 736     {
 737         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 738         UnRef();
 739         m_refData = ref;
 740     }
 741 }
 742
 743 wxFont::~wxFont()
 744 {
 745 }
 746
 747 // ----------------------------------------------------------------------------
 748 // accessors
 749 // ----------------------------------------------------------------------------
 750
 751 int wxFont::GetPointSize() const
 752 {
 753     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 754
 755     return M_FONTDATA->m_pointSize;
 756 }
 757
 758 wxString wxFont::GetFaceName() const
 759 {
 760     wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
 761
 762     return M_FONTDATA->m_faceName;
 763 }
 764
 765 int wxFont::GetFamily() const
 766 {
 767     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 768
 769     return M_FONTDATA->m_family;
 770 }
 771
 772 int wxFont::GetStyle() const
 773 {
 774     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 775
 776     return M_FONTDATA->m_style;
 777 }
 778
 779 int wxFont::GetWeight() const
 780 {
 781     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 782
 783     return M_FONTDATA->m_weight;
 784 }
 785
 786 bool wxFont::GetUnderlined() const
 787 {
 788     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 789
 790     return M_FONTDATA->m_underlined;
 791 }
 792
 793 wxFontEncoding wxFont::GetEncoding() const
 794 {
 795     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 796
 797     return M_FONTDATA->m_encoding;
 798 }
 799
 800 bool wxFont::GetNoAntiAliasing()
 801 {
 802     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 803
 804     return M_FONTDATA->m_noAA;
 805 }
 806
 807 const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 808 {
 809     wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
 810
 811 #ifndef __WXGTK20__
 812     if ( M_FONTDATA->m_nativeFontInfo.GetXFontName().empty() )
 813         GetInternalFont();
 814 #endif
 815
 816     return &(M_FONTDATA->m_nativeFontInfo);
 817 }
 818
 819 bool wxFont::IsFixedWidth() const
 820 {
 821     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 822
 823 #ifndef __WXGTK20__
 824     if ( M_FONTDATA->HasNativeFont() )
 825     {
 826         // the monospace fonts are supposed to have "M" in the spacing field
 827         wxString spacing = M_FONTDATA->
 828                             m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING);
 829
 830         return spacing.Upper() == _T('M');
 831     }
 832 #endif
 833
 834     return wxFontBase::IsFixedWidth();
 835 }
 836
 837 // ----------------------------------------------------------------------------
 838 // change font attributes
 839 // ----------------------------------------------------------------------------
 840
 841 void wxFont::SetPointSize(int pointSize)
 842 {
 843     Unshare();
 844
 845     M_FONTDATA->SetPointSize(pointSize);
 846 }
 847
 848 void wxFont::SetFamily(int family)
 849 {
 850     Unshare();
 851
 852     M_FONTDATA->SetFamily(family);
 853 }
 854
 855 void wxFont::SetStyle(int style)
 856 {
 857     Unshare();
 858
 859     M_FONTDATA->SetStyle(style);
 860 }
 861
 862 void wxFont::SetWeight(int weight)
 863 {
 864     Unshare();
 865
 866     M_FONTDATA->SetWeight(weight);
 867 }
 868
 869 void wxFont::SetFaceName(const wxString& faceName)
 870 {
 871     Unshare();
 872
 873     M_FONTDATA->SetFaceName(faceName);
 874 }
 875
 876 void wxFont::SetUnderlined(bool underlined)
 877 {
 878     Unshare();
 879
 880     M_FONTDATA->SetUnderlined(underlined);
 881 }
 882
 883 void wxFont::SetEncoding(wxFontEncoding encoding)
 884 {
 885     Unshare();
 886
 887     M_FONTDATA->SetEncoding(encoding);
 888 }
 889
 890 void wxFont::DoSetNativeFontInfo( const wxNativeFontInfo& info )
 891 {
 892     Unshare();
 893
 894     M_FONTDATA->SetNativeFontInfo( info );
 895 }
 896
 897 void wxFont::SetNoAntiAliasing( bool no )
 898 {
 899     Unshare();
 900
 901     M_FONTDATA->SetNoAntiAliasing( no );
 902 }
 903
 904 // ----------------------------------------------------------------------------
 905 // get internal representation of font
 906 // ----------------------------------------------------------------------------
 907
 908 #ifndef __WXGTK20__
 909 static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL;
 910
 911 // this is also used from tbargtk.cpp and tooltip.cpp, hence extern
 912 extern GdkFont *GtkGetDefaultGuiFont()
 913 {
 914     if (!g_systemDefaultGuiFont)
 915     {
 916         GtkWidget *widget = gtk_button_new();
 917         GtkStyle *def = gtk_rc_get_style( widget );
 918         if (def)
 919         {
 920             g_systemDefaultGuiFont = gdk_font_ref( def->font );
 921         }
 922         else
 923         {
 924             def = gtk_widget_get_default_style();
 925             if (def)
 926                 g_systemDefaultGuiFont = gdk_font_ref( def->font );
 927         }
 928         gtk_widget_destroy( widget );
 929     }
 930     else
 931     {
 932         // already have it, but ref it once more before returning
 933         gdk_font_ref(g_systemDefaultGuiFont);
 934     }
 935
 936     return g_systemDefaultGuiFont;
 937 }
 938
 939 GdkFont *wxFont::GetInternalFont( float scale ) const
 940 {
 941     GdkFont *font = (GdkFont *) NULL;
 942
 943     wxCHECK_MSG( Ok(), font, wxT("invalid font") )
 944
 945     long int_scale = long(scale * 100.0 + 0.5); // key for fontlist
 946     int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100);
 947
 948     wxScaledFontList& list = M_FONTDATA->m_scaled_xfonts;
 949     wxScaledFontList::iterator i = list.find(int_scale);
 950     if ( i != list.end() )
 951     {
 952         font = i->second;
 953     }
 954     else // we don't have this font in this size yet
 955     {
 956         if (*this == wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT))
 957         {
 958             font = GtkGetDefaultGuiFont();
 959         }
 960
 961         if ( !font )
 962         {
 963             // do we have the XLFD?
 964             if ( M_FONTDATA->HasNativeFont() )
 965             {
 966                 font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName());
 967             }
 968
 969             // no XLFD of no exact match - try the approximate one now
 970             if ( !font )
 971             {
 972                 wxString xfontname;
 973                 font = wxLoadQueryNearestFont( point_scale,
 974                                                M_FONTDATA->m_family,
 975                                                M_FONTDATA->m_style,
 976                                                M_FONTDATA->m_weight,
 977                                                M_FONTDATA->m_underlined,
 978                                                M_FONTDATA->m_faceName,
 979                                                M_FONTDATA->m_encoding,
 980                                                &xfontname);
 981                 if ( font )
 982                 {
 983                     M_FONTDATA->ReInit(xfontname);
 984                 }
 985             }
 986         }
 987
 988         if ( font )
 989         {
 990             list[int_scale] = font;
 991         }
 992     }
 993
 994     // it's quite useless to make it a wxCHECK because we're going to crash
 995     // anyhow...
 996     wxASSERT_MSG( font, wxT("could not load any font?") );
 997
 998     return font;
 999 }
1000 #endif  // not GTK 2.0
1001