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() 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     // Get native info
 498     PangoFontDescription *desc = m_nativeFontInfo.description;
 499
 500     switch ( style )
 501     {
 502         case wxFONTSTYLE_ITALIC:
 503             pango_font_description_set_style( desc, PANGO_STYLE_ITALIC );
 504             break;
 505         case wxFONTSTYLE_SLANT:
 506             pango_font_description_set_style( desc, PANGO_STYLE_OBLIQUE );
 507             break;
 508         default:
 509             wxFAIL_MSG( _T("unknown font style") );
 510             // fall through
 511         case wxFONTSTYLE_NORMAL:
 512             pango_font_description_set_style( desc, PANGO_STYLE_NORMAL );
 513             break;
 514     }
 515 #else
 516     if ( HasNativeFont() )
 517     {
 518         wxString slant;
 519         switch ( style )
 520         {
 521             case wxFONTSTYLE_ITALIC:
 522                 slant = _T('i');
 523                 break;
 524
 525             case wxFONTSTYLE_SLANT:
 526                 slant = _T('o');
 527                 break;
 528
 529             default:
 530                 wxFAIL_MSG( _T("unknown font style") );
 531                 // fall through
 532
 533             case wxFONTSTYLE_NORMAL:
 534                 slant = _T('r');
 535         }
 536
 537         m_nativeFontInfo.SetXFontComponent(wxXLFD_SLANT, slant);
 538     }
 539 #endif
 540 }
 541
 542 void wxFontRefData::SetWeight(int weight)
 543 {
 544     m_weight = weight;
 545
 546 #ifdef __WXGTK20__
 547     PangoFontDescription *desc = m_nativeFontInfo.description;
 548     switch ( weight )
 549     {
 550         case wxFONTWEIGHT_BOLD:
 551             pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
 552             break;
 553
 554         case wxFONTWEIGHT_LIGHT:
 555             pango_font_description_set_weight(desc, PANGO_WEIGHT_LIGHT);
 556             break;
 557
 558         default:
 559             wxFAIL_MSG( _T("unknown font weight") );
 560             // fall through
 561
 562         case wxFONTWEIGHT_NORMAL:
 563             // unspecified
 564             pango_font_description_set_weight(desc, PANGO_WEIGHT_NORMAL);
 565     }
 566 #else //!__WXGTK20__
 567     if ( HasNativeFont() )
 568     {
 569         wxString boldness;
 570         switch ( weight )
 571         {
 572             case wxFONTWEIGHT_BOLD:
 573                 boldness = _T("bold");
 574                 break;
 575
 576             case wxFONTWEIGHT_LIGHT:
 577                 boldness = _T("light");
 578                 break;
 579
 580             default:
 581                 wxFAIL_MSG( _T("unknown font weight") );
 582                 // fall through
 583
 584             case wxFONTWEIGHT_NORMAL:
 585                 // unspecified
 586                 boldness = _T("medium");
 587         }
 588
 589         m_nativeFontInfo.SetXFontComponent(wxXLFD_WEIGHT, boldness);
 590     }
 591 #endif
 592 }
 593
 594 void wxFontRefData::SetUnderlined(bool underlined)
 595 {
 596     m_underlined = underlined;
 597
 598     // the XLFD doesn't have "underlined" field anyhow
 599 }
 600
 601 void wxFontRefData::SetFaceName(const wxString& facename)
 602 {
 603     m_faceName = facename;
 604
 605 #ifndef __WXGTK20__
 606     if ( HasNativeFont() )
 607     {
 608         m_nativeFontInfo.SetXFontComponent(wxXLFD_FAMILY, facename);
 609     }
 610 #endif
 611 }
 612
 613 void wxFontRefData::SetEncoding(wxFontEncoding encoding)
 614 {
 615     m_encoding = encoding;
 616
 617 #ifndef __WXGTK20__
 618     if ( HasNativeFont() )
 619     {
 620         wxNativeEncodingInfo info;
 621         if ( wxGetNativeFontEncoding(encoding, &info) )
 622         {
 623             m_nativeFontInfo.SetXFontComponent(wxXLFD_REGISTRY, info.xregistry);
 624             m_nativeFontInfo.SetXFontComponent(wxXLFD_ENCODING, info.xencoding);
 625         }
 626     }
 627 #endif
 628 }
 629
 630 void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info)
 631 {
 632     // previously cached fonts shouldn't be used
 633     ClearGdkFonts();
 634
 635     m_nativeFontInfo = info;
 636
 637     // set all the other font parameters from the native font info
 638     InitFromNative();
 639 }
 640
 641 // ----------------------------------------------------------------------------
 642 // wxFont creation
 643 // ----------------------------------------------------------------------------
 644
 645 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 646
 647 void wxFont::Init()
 648 {
 649 }
 650
 651 wxFont::wxFont(const wxNativeFontInfo& info)
 652 {
 653     Init();
 654
 655 #ifdef __WXGTK20__
 656     Create( info.GetPointSize(),
 657             info.GetFamily(),
 658             info.GetStyle(),
 659             info.GetWeight(),
 660             info.GetUnderlined(),
 661             info.GetFaceName(),
 662             info.GetEncoding() );
 663 #else
 664     (void) Create(info.GetXFontName());
 665 #endif
 666 }
 667
 668 bool wxFont::Create( int pointSize,
 669                      int family,
 670                      int style,
 671                      int weight,
 672                      bool underlined,
 673                      const wxString& face,
 674                      wxFontEncoding encoding)
 675 {
 676     UnRef();
 677
 678     m_refData = new wxFontRefData(pointSize, family, style, weight,
 679                                   underlined, face, encoding);
 680
 681     return TRUE;
 682 }
 683
 684 bool wxFont::Create(const wxString& fontname)
 685 {
 686     // VZ: does this really happen?
 687     if ( fontname.empty() )
 688     {
 689         *this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 690
 691         return TRUE;
 692     }
 693
 694     m_refData = new wxFontRefData(fontname);
 695
 696     return TRUE;
 697 }
 698
 699 void wxFont::Unshare()
 700 {
 701     if (!m_refData)
 702     {
 703         m_refData = new wxFontRefData();
 704     }
 705     else
 706     {
 707         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 708         UnRef();
 709         m_refData = ref;
 710     }
 711 }
 712
 713 wxFont::~wxFont()
 714 {
 715 }
 716
 717 // ----------------------------------------------------------------------------
 718 // accessors
 719 // ----------------------------------------------------------------------------
 720
 721 int wxFont::GetPointSize() const
 722 {
 723     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 724
 725     return M_FONTDATA->m_pointSize;
 726 }
 727
 728 wxString wxFont::GetFaceName() const
 729 {
 730     wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
 731
 732     return M_FONTDATA->m_faceName;
 733 }
 734
 735 int wxFont::GetFamily() const
 736 {
 737     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 738
 739     return M_FONTDATA->m_family;
 740 }
 741
 742 int wxFont::GetStyle() const
 743 {
 744     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 745
 746     return M_FONTDATA->m_style;
 747 }
 748
 749 int wxFont::GetWeight() const
 750 {
 751     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 752
 753     return M_FONTDATA->m_weight;
 754 }
 755
 756 bool wxFont::GetUnderlined() const
 757 {
 758     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 759
 760     return M_FONTDATA->m_underlined;
 761 }
 762
 763 wxFontEncoding wxFont::GetEncoding() const
 764 {
 765     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 766
 767     return M_FONTDATA->m_encoding;
 768 }
 769
 770 bool wxFont::GetNoAntiAliasing() const
 771 {
 772     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 773
 774     return M_FONTDATA->m_noAA;
 775 }
 776
 777 const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 778 {
 779     wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
 780
 781 #ifndef __WXGTK20__
 782     if ( !M_FONTDATA->HasNativeFont() )
 783     {
 784         // NB: this call has important side-effect: it not only finds
 785         //     GdkFont representation, it also initializes m_nativeFontInfo
 786         //     by calling its SetXFontName method
 787         GetInternalFont();
 788     }
 789 #endif
 790
 791     return &(M_FONTDATA->m_nativeFontInfo);
 792 }
 793
 794 bool wxFont::IsFixedWidth() const
 795 {
 796     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 797
 798 #ifndef __WXGTK20__
 799     if ( M_FONTDATA->HasNativeFont() )
 800     {
 801         // the monospace fonts are supposed to have "M" in the spacing field
 802         wxString spacing = M_FONTDATA->
 803                             m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING);
 804
 805         return spacing.Upper() == _T('M');
 806     }
 807 #endif
 808
 809     return wxFontBase::IsFixedWidth();
 810 }
 811
 812 // ----------------------------------------------------------------------------
 813 // change font attributes
 814 // ----------------------------------------------------------------------------
 815
 816 void wxFont::SetPointSize(int pointSize)
 817 {
 818     Unshare();
 819
 820     M_FONTDATA->SetPointSize(pointSize);
 821 }
 822
 823 void wxFont::SetFamily(int family)
 824 {
 825     Unshare();
 826
 827     M_FONTDATA->SetFamily(family);
 828 }
 829
 830 void wxFont::SetStyle(int style)
 831 {
 832     Unshare();
 833
 834     M_FONTDATA->SetStyle(style);
 835 }
 836
 837 void wxFont::SetWeight(int weight)
 838 {
 839     Unshare();
 840
 841     M_FONTDATA->SetWeight(weight);
 842 }
 843
 844 void wxFont::SetFaceName(const wxString& faceName)
 845 {
 846     Unshare();
 847
 848     M_FONTDATA->SetFaceName(faceName);
 849 }
 850
 851 void wxFont::SetUnderlined(bool underlined)
 852 {
 853     Unshare();
 854
 855     M_FONTDATA->SetUnderlined(underlined);
 856 }
 857
 858 void wxFont::SetEncoding(wxFontEncoding encoding)
 859 {
 860     Unshare();
 861
 862     M_FONTDATA->SetEncoding(encoding);
 863 }
 864
 865 void wxFont::DoSetNativeFontInfo( const wxNativeFontInfo& info )
 866 {
 867     Unshare();
 868
 869     M_FONTDATA->SetNativeFontInfo( info );
 870 }
 871
 872 void wxFont::SetNoAntiAliasing( bool no )
 873 {
 874     Unshare();
 875
 876     M_FONTDATA->SetNoAntiAliasing( no );
 877 }
 878
 879 // ----------------------------------------------------------------------------
 880 // get internal representation of font
 881 // ----------------------------------------------------------------------------
 882
 883 #ifndef __WXGTK20__
 884 static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL;
 885
 886 // this is also used from tbargtk.cpp and tooltip.cpp, hence extern
 887 extern GdkFont *GtkGetDefaultGuiFont()
 888 {
 889     if (!g_systemDefaultGuiFont)
 890     {
 891         GtkWidget *widget = gtk_button_new();
 892         GtkStyle *def = gtk_rc_get_style( widget );
 893         if (def)
 894         {
 895             g_systemDefaultGuiFont = gdk_font_ref( def->font );
 896         }
 897         else
 898         {
 899             def = gtk_widget_get_default_style();
 900             if (def)
 901                 g_systemDefaultGuiFont = gdk_font_ref( def->font );
 902         }
 903         gtk_widget_destroy( widget );
 904     }
 905     else
 906     {
 907         // already have it, but ref it once more before returning
 908         gdk_font_ref(g_systemDefaultGuiFont);
 909     }
 910
 911     return g_systemDefaultGuiFont;
 912 }
 913
 914 GdkFont *wxFont::GetInternalFont( float scale ) const
 915 {
 916     GdkFont *font = (GdkFont *) NULL;
 917
 918     wxCHECK_MSG( Ok(), font, wxT("invalid font") )
 919
 920     long int_scale = long(scale * 100.0 + 0.5); // key for fontlist
 921     int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100);
 922
 923     wxScaledFontList& list = M_FONTDATA->m_scaled_xfonts;
 924     wxScaledFontList::iterator i = list.find(int_scale);
 925     if ( i != list.end() )
 926     {
 927         font = i->second;
 928     }
 929     else // we don't have this font in this size yet
 930     {
 931         if (*this == wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT))
 932         {
 933             font = GtkGetDefaultGuiFont();
 934         }
 935
 936         if ( !font )
 937         {
 938             // do we have the XLFD?
 939             if ( int_scale == 100 && M_FONTDATA->HasNativeFont() )
 940             {
 941                 font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName());
 942             }
 943
 944             // no XLFD of no exact match - try the approximate one now
 945             if ( !font )
 946             {
 947                 wxString xfontname;
 948                 font = wxLoadQueryNearestFont( point_scale,
 949                                                M_FONTDATA->m_family,
 950                                                M_FONTDATA->m_style,
 951                                                M_FONTDATA->m_weight,
 952                                                M_FONTDATA->m_underlined,
 953                                                M_FONTDATA->m_faceName,
 954                                                M_FONTDATA->m_encoding,
 955                                                &xfontname);
 956                 // NB: wxFont::GetNativeFontInfo relies on this
 957                 //     side-effect of GetInternalFont
 958                 if ( int_scale == 100 )
 959                     M_FONTDATA->m_nativeFontInfo.SetXFontName(xfontname);
 960             }
 961         }
 962
 963         if ( font )
 964         {
 965             list[int_scale] = font;
 966         }
 967     }
 968
 969     // it's quite useless to make it a wxCHECK because we're going to crash
 970     // anyhow...
 971     wxASSERT_MSG( font, wxT("could not load any font?") );
 972
 973     return font;
 974 }
 975 #endif  // not GTK 2.0
 976