src/mac/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_FONTMAP
  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/mac/private.h"
  29
  30 // ----------------------------------------------------------------------------
  31 // wxFontEnumerator
  32 // ----------------------------------------------------------------------------
  33
  34 bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
  35                                           bool fixedWidthOnly)
  36 {
  37     //
  38     // From Apple's QA 1471 http://developer.apple.com/qa/qa2006/qa1471.html
  39     //
  40
  41     ATSFontFamilyIterator theFontFamilyIterator = NULL;
  42     ATSFontFamilyRef theATSFontFamilyRef = 0;
  43     OSStatus status = noErr;
  44
  45     wxArrayString fontFamilies ;
  46
  47     // Create the iterator
  48     status = ATSFontFamilyIteratorCreate(kATSFontContextLocal, nil,nil,
  49                                          kATSOptionFlagsUnRestrictedScope,
  50                                          &theFontFamilyIterator );
  51
  52     wxUint32 macEncoding = wxMacGetSystemEncFromFontEnc(encoding) ;
  53
  54     while (status == noErr)
  55     {
  56         // Get the next font in the iteration.
  57         status = ATSFontFamilyIteratorNext( theFontFamilyIterator, &theATSFontFamilyRef );
  58         if(status == noErr)
  59         {
  60             // added CS : avoid showing fonts that won't be displayable
  61             FMFontStyle intrinsicStyle = 0 ;
  62             FMFont fontInstance ;
  63             FMFontFamily fmFamily = FMGetFontFamilyFromATSFontFamilyRef( theATSFontFamilyRef );
  64             status = FMGetFontFromFontFamilyInstance( fmFamily , 0 , &fontInstance , &intrinsicStyle);
  65             if ( status != noErr )
  66             {
  67                 status = noErr;
  68                 continue ;
  69             }
  70
  71             if ( encoding != wxFONTENCODING_SYSTEM )
  72             {
  73                 TextEncoding fontFamiliyEncoding = ATSFontFamilyGetEncoding(theATSFontFamilyRef) ;
  74                 if ( fontFamiliyEncoding != macEncoding )
  75                     continue ;
  76             }
  77
  78             // TODO: determine fixed widths ...
  79
  80             CFStringRef theName = NULL;
  81             ATSFontFamilyGetName(theATSFontFamilyRef, kATSOptionFlagsDefault, &theName);
  82             wxMacCFStringHolder cfName(theName) ;
  83             fontFamilies.Add(cfName.AsString(wxLocale::GetSystemEncoding()));
  84         }
  85         else if (status == kATSIterationScopeModified) // Make sure the font database hasnÕt changed.
  86         {
  87             // reset the iterator
  88             status = ATSFontFamilyIteratorReset (kATSFontContextLocal, nil, nil,
  89                                                  kATSOptionFlagsUnRestrictedScope,
  90                                                  &theFontFamilyIterator);
  91             fontFamilies.Clear() ;
  92         }
  93     }
  94     ATSFontFamilyIteratorRelease(&theFontFamilyIterator);
  95
  96     for ( size_t i = 0 ; i < fontFamilies.Count() ; ++i )
  97     {
  98         if ( OnFacename( fontFamilies[i] ) == false )
  99             break ;
 100     }
 101
 102     return true;
 103 }
 104
 105 bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
 106 {
 107     wxFAIL_MSG(wxT("wxFontEnumerator::EnumerateEncodings() not yet implemented"));
 108
 109     return true;
 110 }
 111
 112 #endif // wxUSE_FONTMAP