src/gtk1/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() const { 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     // Pango sometimes needs to have a size
 240     int pango_size = pango_font_description_get_size( desc );
 241     if (pango_size == 0)
 242         pango_font_description_set_size( desc, 12 * PANGO_SCALE);
 243
 244     m_pointSize = pango_font_description_get_size( desc ) / PANGO_SCALE;
 245
 246     switch (pango_font_description_get_style( desc ))
 247     {
 248         case PANGO_STYLE_NORMAL:
 249             m_style = wxFONTSTYLE_NORMAL;
 250             break;
 251         case PANGO_STYLE_ITALIC:
 252             m_style = wxFONTSTYLE_ITALIC;
 253             break;
 254         case PANGO_STYLE_OBLIQUE:
 255             m_style = wxFONTSTYLE_SLANT;
 256             break;
 257     }
 258
 259     PangoWeight pango_weight = pango_font_description_get_weight( desc );
 260
 261     if (pango_weight >= 600)
 262     {
 263         m_weight = wxFONTWEIGHT_BOLD;
 264     }
 265     else if (pango_weight < 350)
 266     {
 267         m_weight = wxFONTWEIGHT_LIGHT;
 268     }
 269     else
 270     {
 271         m_weight = wxFONTWEIGHT_NORMAL;
 272     }
 273
 274     if (m_faceName == wxT("monospace"))
 275     {
 276         m_family = wxFONTFAMILY_TELETYPE;
 277     }
 278     else if (m_faceName == wxT("sans"))
 279     {
 280         m_family = wxFONTFAMILY_SWISS;
 281     }
 282     else if (m_faceName == wxT("serif"))
 283     {
 284         m_family = wxFONTFAMILY_ROMAN;
 285     }
 286     else
 287     {
 288         m_family = wxFONTFAMILY_UNKNOWN;
 289     }
 290
 291     // Pango description are never underlined (?)
 292     m_underlined = FALSE;
 293
 294     // Cannot we choose that
 295     m_encoding = wxFONTENCODING_SYSTEM;
 296 #else // GTK 1.x
 297     // get the font parameters from the XLFD
 298     // -------------------------------------
 299
 300     m_faceName = m_nativeFontInfo.GetXFontComponent(wxXLFD_FAMILY);
 301
 302     m_weight = wxFONTWEIGHT_NORMAL;
 303
 304     wxString w = m_nativeFontInfo.GetXFontComponent(wxXLFD_WEIGHT).Upper();
 305     if ( !w.empty() && w != _T('*') )
 306     {
 307         // the test below catches all of BOLD, EXTRABOLD, DEMIBOLD, ULTRABOLD
 308         // and BLACK
 309         if ( ((w[0u] == _T('B') && (!wxStrcmp(w.c_str() + 1, wxT("OLD")) ||
 310                                    !wxStrcmp(w.c_str() + 1, wxT("LACK"))))) ||
 311              wxStrstr(w.c_str() + 1, _T("BOLD")) )
 312         {
 313             m_weight = wxFONTWEIGHT_BOLD;
 314         }
 315         else if ( w == _T("LIGHT") || w == _T("THIN") )
 316         {
 317             m_weight = wxFONTWEIGHT_LIGHT;
 318         }
 319     }
 320
 321     switch ( wxToupper(*m_nativeFontInfo.
 322                             GetXFontComponent(wxXLFD_SLANT).c_str()) )
 323     {
 324         case _T('I'):   // italique
 325             m_style = wxFONTSTYLE_ITALIC;
 326             break;
 327
 328         case _T('O'):   // oblique
 329             m_style = wxFONTSTYLE_SLANT;
 330             break;
 331
 332         default:
 333             m_style = wxFONTSTYLE_NORMAL;
 334     }
 335
 336     long ptSize;
 337     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_POINTSIZE).ToLong(&ptSize) )
 338     {
 339         // size in XLFD is in 10 point units
 340         m_pointSize = (int)(ptSize / 10);
 341     }
 342     else
 343     {
 344         m_pointSize = wxDEFAULT_FONT_SIZE;
 345     }
 346
 347     // examine the spacing: if the font is monospaced, assume wxTELETYPE
 348     // family for compatibility with the old code which used it instead of
 349     // IsFixedWidth()
 350     if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING).Upper() == _T('M') )
 351     {
 352         m_family = wxFONTFAMILY_TELETYPE;
 353     }
 354     else // not monospaceed
 355     {
 356         // don't even try guessing it, it doesn't work for too many fonts
 357         // anyhow
 358         m_family = wxFONTFAMILY_UNKNOWN;
 359     }
 360
 361     // X fonts are never underlined...
 362     m_underlined = FALSE;
 363
 364     // deal with font encoding
 365     wxString
 366         registry = m_nativeFontInfo.GetXFontComponent(wxXLFD_REGISTRY).Upper(),
 367         encoding = m_nativeFontInfo.GetXFontComponent(wxXLFD_ENCODING).Upper();
 368
 369     if ( registry == _T("ISO8859") )
 370     {
 371         int cp;
 372         if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
 373         {
 374             m_encoding = (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
 375         }
 376     }
 377     else if ( registry == _T("MICROSOFT") )
 378     {
 379         int cp;
 380         if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
 381         {
 382             m_encoding = (wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
 383         }
 384     }
 385     else if ( registry == _T("KOI8") )
 386     {
 387         m_encoding = wxFONTENCODING_KOI8;
 388     }
 389     else // unknown encoding
 390     {
 391         // may be give a warning here? or use wxFontMapper?
 392         m_encoding = wxFONTENCODING_SYSTEM;
 393     }
 394 #endif // GTK 2.0/1.x
 395 }
 396
 397 wxFontRefData::wxFontRefData( const wxFontRefData& data )
 398              : wxObjectRefData()
 399 {
 400     m_pointSize = data.m_pointSize;
 401     m_family = data.m_family;
 402     m_style = data.m_style;
 403     m_weight = data.m_weight;
 404
 405     m_underlined = data.m_underlined;
 406
 407     m_faceName = data.m_faceName;
 408     m_encoding = data.m_encoding;
 409
 410     m_noAA = data.m_noAA;
 411
 412     // Forces a copy of the internal data.  wxNativeFontInfo should probably
 413     // have a copy ctor and assignment operator to fix this properly but that
 414     // would break binary compatibility...
 415     m_nativeFontInfo.FromString(data.m_nativeFontInfo.ToString());
 416 }
 417
 418 wxFontRefData::wxFontRefData(int size, int family, int style,
 419                              int weight, bool underlined,
 420                              const wxString& faceName,
 421                              wxFontEncoding encoding)
 422 {
 423     Init(size, family, style, weight, underlined, faceName, encoding);
 424 }
 425
 426 wxFontRefData::wxFontRefData(const wxString& fontname)
 427 {
 428     // VZ: FromString() should really work in both cases, doesn't it?
 429 #ifdef __WXGTK20__
 430     m_nativeFontInfo.FromString( fontname );
 431 #else // GTK 1.x
 432     m_nativeFontInfo.SetXFontName(fontname);
 433 #endif // GTK 2.0/1.x
 434
 435     InitFromNative();
 436 }
 437
 438 void wxFontRefData::ClearGdkFonts()
 439 {
 440 #ifndef __WXGTK20__
 441     for ( wxScaledFontList::iterator i = m_scaled_xfonts.begin();
 442           i != m_scaled_xfonts.end();
 443           ++i )
 444     {
 445         GdkFont *font = i->second;
 446         gdk_font_unref( font );
 447     }
 448
 449     m_scaled_xfonts.clear();
 450 #endif // GTK 1.x
 451 }
 452
 453 wxFontRefData::~wxFontRefData()
 454 {
 455     ClearGdkFonts();
 456 }
 457
 458 // ----------------------------------------------------------------------------
 459 // wxFontRefData SetXXX()
 460 // ----------------------------------------------------------------------------
 461
 462 void wxFontRefData::SetPointSize(int pointSize)
 463 {
 464     m_pointSize = pointSize;
 465
 466 #ifdef __WXGTK20__
 467     // Get native info
 468     PangoFontDescription *desc = m_nativeFontInfo.description;
 469
 470     pango_font_description_set_size( desc, m_pointSize * PANGO_SCALE );
 471 #else
 472     if ( HasNativeFont() )
 473     {
 474         wxString size;
 475         if ( pointSize == -1 )
 476             size = _T('*');
 477         else
 478             size.Printf(_T("%d"), 10*pointSize);
 479
 480         m_nativeFontInfo.SetXFontComponent(wxXLFD_POINTSIZE, size);
 481     }
 482 #endif
 483 }
 484
 485 void wxFontRefData::SetFamily(int family)
 486 {
 487     m_family = family;
 488
 489     // TODO: what are we supposed to do with m_nativeFontInfo here?
 490 }
 491
 492 void wxFontRefData::SetStyle(int style)
 493 {
 494     m_style = style;
 495
 496 #ifdef __WXGTK20__
 497     m_nativeFontInfo.SetStyle((wxFontStyle)style);
 498 #else
 499     if ( HasNativeFont() )
 500     {
 501         wxString slant;
 502         switch ( style )
 503         {
 504             case wxFONTSTYLE_ITALIC:
 505                 slant = _T('i');
 506                 break;
 507
 508             case wxFONTSTYLE_SLANT:
 509                 slant = _T('o');
 510                 break;
 511
 512             default:
 513                 wxFAIL_MSG( _T("unknown font style") );
 514                 // fall through
 515
 516             case wxFONTSTYLE_NORMAL:
 517                 slant = _T('r');
 518         }
 519
 520         m_nativeFontInfo.SetXFontComponent(wxXLFD_SLANT, slant);
 521     }
 522 #endif
 523 }
 524
 525 void wxFontRefData::SetWeight(int weight)
 526 {
 527     m_weight = weight;
 528
 529 #ifdef __WXGTK20__
 530     m_nativeFontInfo.SetWeight((wxFontWeight)weight);
 531 #else //!__WXGTK20__
 532     if ( HasNativeFont() )
 533     {
 534         wxString boldness;
 535         switch ( weight )
 536         {
 537             case wxFONTWEIGHT_BOLD:
 538                 boldness = _T("bold");
 539                 break;
 540
 541             case wxFONTWEIGHT_LIGHT:
 542                 boldness = _T("light");
 543                 break;
 544
 545             default:
 546                 wxFAIL_MSG( _T("unknown font weight") );
 547                 // fall through
 548
 549             case wxFONTWEIGHT_NORMAL:
 550                 // unspecified
 551                 boldness = _T("medium");
 552         }
 553
 554         m_nativeFontInfo.SetXFontComponent(wxXLFD_WEIGHT, boldness);
 555     }
 556 #endif
 557 }
 558
 559 void wxFontRefData::SetUnderlined(bool underlined)
 560 {
 561     m_underlined = underlined;
 562
 563     // the XLFD doesn't have "underlined" field anyhow
 564 }
 565
 566 void wxFontRefData::SetFaceName(const wxString& facename)
 567 {
 568     m_faceName = facename;
 569
 570 #ifndef __WXGTK20__
 571     if ( HasNativeFont() )
 572     {
 573         m_nativeFontInfo.SetXFontComponent(wxXLFD_FAMILY, facename);
 574     }
 575 #endif
 576 }
 577
 578 void wxFontRefData::SetEncoding(wxFontEncoding encoding)
 579 {
 580     m_encoding = encoding;
 581
 582 #ifndef __WXGTK20__
 583     if ( HasNativeFont() )
 584     {
 585         wxNativeEncodingInfo info;
 586         if ( wxGetNativeFontEncoding(encoding, &info) )
 587         {
 588             m_nativeFontInfo.SetXFontComponent(wxXLFD_REGISTRY, info.xregistry);
 589             m_nativeFontInfo.SetXFontComponent(wxXLFD_ENCODING, info.xencoding);
 590         }
 591     }
 592 #endif
 593 }
 594
 595 void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info)
 596 {
 597     // previously cached fonts shouldn't be used
 598     ClearGdkFonts();
 599
 600     m_nativeFontInfo = info;
 601
 602     // set all the other font parameters from the native font info
 603     InitFromNative();
 604 }
 605
 606 // ----------------------------------------------------------------------------
 607 // wxFont creation
 608 // ----------------------------------------------------------------------------
 609
 610 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 611
 612 void wxFont::Init()
 613 {
 614 }
 615
 616 wxFont::wxFont(const wxNativeFontInfo& info)
 617 {
 618     Init();
 619
 620 #ifdef __WXGTK20__
 621     Create( info.GetPointSize(),
 622             info.GetFamily(),
 623             info.GetStyle(),
 624             info.GetWeight(),
 625             info.GetUnderlined(),
 626             info.GetFaceName(),
 627             info.GetEncoding() );
 628 #else
 629     (void) Create(info.GetXFontName());
 630 #endif
 631 }
 632
 633 bool wxFont::Create( int pointSize,
 634                      int family,
 635                      int style,
 636                      int weight,
 637                      bool underlined,
 638                      const wxString& face,
 639                      wxFontEncoding encoding)
 640 {
 641     UnRef();
 642
 643     m_refData = new wxFontRefData(pointSize, family, style, weight,
 644                                   underlined, face, encoding);
 645
 646     return TRUE;
 647 }
 648
 649 bool wxFont::Create(const wxString& fontname)
 650 {
 651     // VZ: does this really happen?
 652     if ( fontname.empty() )
 653     {
 654         *this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 655
 656         return TRUE;
 657     }
 658
 659     m_refData = new wxFontRefData(fontname);
 660
 661     return TRUE;
 662 }
 663
 664 void wxFont::Unshare()
 665 {
 666     if (!m_refData)
 667     {
 668         m_refData = new wxFontRefData();
 669     }
 670     else
 671     {
 672         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 673         UnRef();
 674         m_refData = ref;
 675     }
 676 }
 677
 678 wxFont::~wxFont()
 679 {
 680 }
 681
 682 // ----------------------------------------------------------------------------
 683 // accessors
 684 // ----------------------------------------------------------------------------
 685
 686 int wxFont::GetPointSize() const
 687 {
 688     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 689
 690 #if wxUSE_PANGO
 691     return M_FONTDATA->HasNativeFont() ? M_FONTDATA->m_nativeFontInfo.GetPointSize()
 692                                        : M_FONTDATA->m_pointSize;
 693 #else
 694     return M_FONTDATA->m_pointSize;
 695 #endif
 696 }
 697
 698 wxString wxFont::GetFaceName() const
 699 {
 700     wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
 701
 702 #if wxUSE_PANGO
 703     return M_FONTDATA->HasNativeFont() ? M_FONTDATA->m_nativeFontInfo.GetFaceName()
 704                                        : M_FONTDATA->m_faceName;
 705 #else
 706     return M_FONTDATA->m_faceName;
 707 #endif
 708 }
 709
 710 int wxFont::GetFamily() const
 711 {
 712     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 713
 714 #if wxUSE_PANGO
 715     int ret = M_FONTDATA->m_family;
 716     if (M_FONTDATA->HasNativeFont())
 717         // wxNativeFontInfo::GetFamily is expensive, must not call more than once
 718         ret = M_FONTDATA->m_nativeFontInfo.GetFamily();
 719
 720     if (ret == wxFONTFAMILY_DEFAULT)
 721         ret = M_FONTDATA->m_family;
 722
 723     return ret;
 724 #else
 725     return M_FONTDATA->m_family;
 726 #endif
 727 }
 728
 729 int wxFont::GetStyle() const
 730 {
 731     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 732
 733 #if wxUSE_PANGO
 734     return M_FONTDATA->HasNativeFont() ? M_FONTDATA->m_nativeFontInfo.GetStyle()
 735                                        : M_FONTDATA->m_style;
 736 #else
 737     return M_FONTDATA->m_style;
 738 #endif
 739 }
 740
 741 int wxFont::GetWeight() const
 742 {
 743     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 744
 745 #if wxUSE_PANGO
 746     return M_FONTDATA->HasNativeFont() ? M_FONTDATA->m_nativeFontInfo.GetWeight()
 747                                        : M_FONTDATA->m_weight;
 748 #else
 749     return M_FONTDATA->m_weight;
 750 #endif
 751 }
 752
 753 bool wxFont::GetUnderlined() const
 754 {
 755     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 756
 757     return M_FONTDATA->m_underlined;
 758 }
 759
 760 wxFontEncoding wxFont::GetEncoding() const
 761 {
 762     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 763
 764     // m_encoding is unused in wxGTK2, return encoding that the user set.
 765     return M_FONTDATA->m_encoding;
 766 }
 767
 768 bool wxFont::GetNoAntiAliasing() const
 769 {
 770     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 771
 772     return M_FONTDATA->m_noAA;
 773 }
 774
 775 const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 776 {
 777     wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
 778
 779 #ifndef __WXGTK20__
 780     if ( !M_FONTDATA->HasNativeFont() )
 781     {
 782         // NB: this call has important side-effect: it not only finds
 783         //     GdkFont representation, it also initializes m_nativeFontInfo
 784         //     by calling its SetXFontName method
 785         GetInternalFont();
 786     }
 787 #endif
 788
 789     return &(M_FONTDATA->m_nativeFontInfo);
 790 }
 791
 792 bool wxFont::IsFixedWidth() const
 793 {
 794     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 795
 796 #ifndef __WXGTK20__
 797     if ( M_FONTDATA->HasNativeFont() )
 798     {
 799         // the monospace fonts are supposed to have "M" in the spacing field
 800         wxString spacing = M_FONTDATA->
 801                             m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING);
 802
 803         return spacing.Upper() == _T('M');
 804     }
 805 #endif
 806
 807     return wxFontBase::IsFixedWidth();
 808 }
 809
 810 // ----------------------------------------------------------------------------
 811 // change font attributes
 812 // ----------------------------------------------------------------------------
 813
 814 void wxFont::SetPointSize(int pointSize)
 815 {
 816     Unshare();
 817
 818     M_FONTDATA->SetPointSize(pointSize);
 819 }
 820
 821 void wxFont::SetFamily(int family)
 822 {
 823     Unshare();
 824
 825     M_FONTDATA->SetFamily(family);
 826 }
 827
 828 void wxFont::SetStyle(int style)
 829 {
 830     Unshare();
 831
 832     M_FONTDATA->SetStyle(style);
 833 }
 834
 835 void wxFont::SetWeight(int weight)
 836 {
 837     Unshare();
 838
 839     M_FONTDATA->SetWeight(weight);
 840 }
 841
 842 void wxFont::SetFaceName(const wxString& faceName)
 843 {
 844     Unshare();
 845
 846     M_FONTDATA->SetFaceName(faceName);
 847 }
 848
 849 void wxFont::SetUnderlined(bool underlined)
 850 {
 851     Unshare();
 852
 853     M_FONTDATA->SetUnderlined(underlined);
 854 }
 855
 856 void wxFont::SetEncoding(wxFontEncoding encoding)
 857 {
 858     Unshare();
 859
 860     M_FONTDATA->SetEncoding(encoding);
 861 }
 862
 863 void wxFont::DoSetNativeFontInfo( const wxNativeFontInfo& info )
 864 {
 865     Unshare();
 866
 867     M_FONTDATA->SetNativeFontInfo( info );
 868 }
 869
 870 void wxFont::SetNoAntiAliasing( bool no )
 871 {
 872     Unshare();
 873
 874     M_FONTDATA->SetNoAntiAliasing( no );
 875 }
 876
 877 // ----------------------------------------------------------------------------
 878 // get internal representation of font
 879 // ----------------------------------------------------------------------------
 880
 881 #ifndef __WXGTK20__
 882 static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL;
 883
 884 // this is also used from tbargtk.cpp and tooltip.cpp, hence extern
 885 extern GdkFont *GtkGetDefaultGuiFont()
 886 {
 887     if (!g_systemDefaultGuiFont)
 888     {
 889         GtkWidget *widget = gtk_button_new();
 890         GtkStyle *def = gtk_rc_get_style( widget );
 891         if (def)
 892         {
 893             g_systemDefaultGuiFont = gdk_font_ref( def->font );
 894         }
 895         else
 896         {
 897             def = gtk_widget_get_default_style();
 898             if (def)
 899                 g_systemDefaultGuiFont = gdk_font_ref( def->font );
 900         }
 901         gtk_widget_destroy( widget );
 902     }
 903     else
 904     {
 905         // already have it, but ref it once more before returning
 906         gdk_font_ref(g_systemDefaultGuiFont);
 907     }
 908
 909     return g_systemDefaultGuiFont;
 910 }
 911
 912 GdkFont *wxFont::GetInternalFont( float scale ) const
 913 {
 914     GdkFont *font = (GdkFont *) NULL;
 915
 916     wxCHECK_MSG( Ok(), font, wxT("invalid font") )
 917
 918     long int_scale = long(scale * 100.0 + 0.5); // key for fontlist
 919     int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100);
 920
 921     wxScaledFontList& list = M_FONTDATA->m_scaled_xfonts;
 922     wxScaledFontList::iterator i = list.find(int_scale);
 923     if ( i != list.end() )
 924     {
 925         font = i->second;
 926     }
 927     else // we don't have this font in this size yet
 928     {
 929         if (*this == wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT))
 930         {
 931             font = GtkGetDefaultGuiFont();
 932         }
 933
 934         if ( !font )
 935         {
 936             // do we have the XLFD?
 937             if ( int_scale == 100 && M_FONTDATA->HasNativeFont() )
 938             {
 939                 font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName());
 940             }
 941
 942             // no XLFD of no exact match - try the approximate one now
 943             if ( !font )
 944             {
 945                 wxString xfontname;
 946                 font = wxLoadQueryNearestFont( point_scale,
 947                                                M_FONTDATA->m_family,
 948                                                M_FONTDATA->m_style,
 949                                                M_FONTDATA->m_weight,
 950                                                M_FONTDATA->m_underlined,
 951                                                M_FONTDATA->m_faceName,
 952                                                M_FONTDATA->m_encoding,
 953                                                &xfontname);
 954                 // NB: wxFont::GetNativeFontInfo relies on this
 955                 //     side-effect of GetInternalFont
 956                 if ( int_scale == 100 )
 957                     M_FONTDATA->m_nativeFontInfo.SetXFontName(xfontname);
 958             }
 959         }
 960
 961         if ( font )
 962         {
 963             list[int_scale] = font;
 964         }
 965     }
 966
 967     // it's quite useless to make it a wxCHECK because we're going to crash
 968     // anyhow...
 969     wxASSERT_MSG( font, wxT("could not load any font?") );
 970
 971     return font;
 972 }
 973 #endif  // not GTK 2.0
 974