src/osx/carbon/fontenum.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/fontenum.cpp
   3 // Purpose:     wxFontEnumerator class for MacOS
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #if wxUSE_FONTENUM
  16
  17 #include "wx/fontenum.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/font.h"
  21     #include "wx/intl.h"
  22 #endif
  23
  24 #include "wx/fontutil.h"
  25 #include "wx/fontmap.h"
  26 #include "wx/encinfo.h"
  27
  28 #include "wx/osx/private.h"
  29
  30 // ----------------------------------------------------------------------------
  31 // wxFontEnumerator
  32 // ----------------------------------------------------------------------------
  33
  34 bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
  35                                           bool fixedWidthOnly)
  36 {
  37     if ( fixedWidthOnly )
  38     {
  39         wxFAIL_MSG( "enumerating only fixed width fonts not supported" );
  40         return false;
  41     }
  42
  43     wxArrayString fontFamilies ;
  44
  45 #if wxMAC_USE_ATSU_TEXT || wxMAC_USE_CORE_TEXT
  46
  47     //
  48     // From Apple's QA 1471 http://developer.apple.com/qa/qa2006/qa1471.html
  49     //
  50
  51     ATSFontFamilyIterator theFontFamilyIterator = NULL;
  52     ATSFontFamilyRef theATSFontFamilyRef = 0;
  53     OSStatus status = noErr;
  54
  55     // Create the iterator
  56     status = ATSFontFamilyIteratorCreate(kATSFontContextLocal, nil,nil,
  57                                          kATSOptionFlagsUnRestrictedScope,
  58                                          &theFontFamilyIterator );
  59
  60     wxUint32 macEncoding = wxMacGetSystemEncFromFontEnc(encoding) ;
  61
  62     while (status == noErr)
  63     {
  64         // Get the next font in the iteration.
  65         status = ATSFontFamilyIteratorNext( theFontFamilyIterator, &theATSFontFamilyRef );
  66         if(status == noErr)
  67         {
  68  #ifndef __LP64__
  69             // TODO CS : Find replacement
  70             // added CS : avoid showing fonts that won't be displayable
  71             FMFontStyle intrinsicStyle = 0 ;
  72             FMFont fontInstance ;
  73             FMFontFamily fmFamily = FMGetFontFamilyFromATSFontFamilyRef( theATSFontFamilyRef );
  74             status = FMGetFontFromFontFamilyInstance( fmFamily , 0 , &fontInstance , &intrinsicStyle);
  75             if ( status != noErr )
  76             {
  77                 status = noErr;
  78                 continue ;
  79             }
  80 #endif
  81             if ( encoding != wxFONTENCODING_SYSTEM )
  82             {
  83                 TextEncoding fontFamiliyEncoding = ATSFontFamilyGetEncoding(theATSFontFamilyRef) ;
  84                 if ( fontFamiliyEncoding != macEncoding )
  85                     continue ;
  86             }
  87
  88             // TODO: determine fixed widths ...
  89
  90             CFStringRef theName = NULL;
  91             ATSFontFamilyGetName(theATSFontFamilyRef, kATSOptionFlagsDefault, &theName);
  92             wxCFStringRef cfName(theName) ;
  93             fontFamilies.Add(cfName.AsString(wxLocale::GetSystemEncoding()));
  94         }
  95         else if (status == kATSIterationScopeModified) // Make sure the font database hasnÕt changed.
  96         {
  97             // reset the iterator
  98             status = ATSFontFamilyIteratorReset (kATSFontContextLocal, nil, nil,
  99                                                  kATSOptionFlagsUnRestrictedScope,
 100                                                  &theFontFamilyIterator);
 101             fontFamilies.Clear() ;
 102         }
 103     }
 104     ATSFontFamilyIteratorRelease(&theFontFamilyIterator);
 105 #endif
 106
 107     for ( size_t i = 0 ; i < fontFamilies.Count() ; ++i )
 108     {
 109         if ( OnFacename( fontFamilies[i] ) == false )
 110             break ;
 111     }
 112
 113     return true;
 114 }
 115
 116 bool wxFontEnumerator::EnumerateEncodings(const wxString& WXUNUSED(family))
 117 {
 118     wxFAIL_MSG(wxT("wxFontEnumerator::EnumerateEncodings() not yet implemented"));
 119
 120     return true;
 121 }
 122
 123 #endif // wxUSE_FONTENUM