src/osx/core/fontenum.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/core/fontenum.cpp
   3 // Purpose:     wxFontEnumerator class for MacOS
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     04/01/98
   7 // Copyright:   (c) Stefan Csomor
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_FONTENUM
  15
  16 #include "wx/fontenum.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/font.h"
  20     #include "wx/intl.h"
  21 #endif
  22
  23 #include "wx/fontutil.h"
  24 #include "wx/fontmap.h"
  25 #include "wx/encinfo.h"
  26
  27 #include "wx/osx/private.h"
  28
  29 // ----------------------------------------------------------------------------
  30 // wxFontEnumerator
  31 // ----------------------------------------------------------------------------
  32
  33 #if wxOSX_USE_IPHONE
  34 extern CFArrayRef CopyAvailableFontFamilyNames();
  35 #endif
  36
  37 bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
  38                                           bool fixedWidthOnly)
  39 {
  40      wxArrayString fontFamilies ;
  41
  42     wxUint32 macEncoding = wxMacGetSystemEncFromFontEnc(encoding) ;
  43
  44 #if wxOSX_USE_CORE_TEXT
  45     {
  46         CFArrayRef cfFontFamilies = nil;
  47
  48 #if wxOSX_USE_COCOA_OR_CARBON
  49 #if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6)
  50         if ( UMAGetSystemVersion() >= 0x1060 )
  51             cfFontFamilies = CTFontManagerCopyAvailableFontFamilyNames();
  52         else
  53 #endif
  54         {
  55 #if (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6)
  56             //
  57             // From Apple's QA 1471 http://developer.apple.com/qa/qa2006/qa1471.html
  58             //
  59
  60             CFMutableArrayRef atsfontnames = CFArrayCreateMutable(kCFAllocatorDefault,0,&kCFTypeArrayCallBacks);;
  61
  62             ATSFontFamilyIterator theFontFamilyIterator = NULL;
  63             ATSFontFamilyRef theATSFontFamilyRef = 0;
  64             OSStatus status = noErr;
  65
  66             // Create the iterator
  67             status = ATSFontFamilyIteratorCreate(kATSFontContextLocal, nil,nil,
  68                                                  kATSOptionFlagsUnRestrictedScope,
  69                                                  &theFontFamilyIterator );
  70
  71             while (status == noErr)
  72             {
  73                 // Get the next font in the iteration.
  74                 status = ATSFontFamilyIteratorNext( theFontFamilyIterator, &theATSFontFamilyRef );
  75                 if(status == noErr)
  76                 {
  77                     CFStringRef theName = NULL;
  78                     ATSFontFamilyGetName(theATSFontFamilyRef, kATSOptionFlagsDefault, &theName);
  79                     CFArrayAppendValue(atsfontnames, theName);
  80                     CFRelease(theName);
  81
  82                 }
  83                 else if (status == kATSIterationScopeModified) // Make sure the font database hasn't changed.
  84                 {
  85                     // reset the iterator
  86                     status = ATSFontFamilyIteratorReset (kATSFontContextLocal, nil, nil,
  87                                                          kATSOptionFlagsUnRestrictedScope,
  88                                                          &theFontFamilyIterator);
  89                     CFArrayRemoveAllValues(atsfontnames);
  90                 }
  91             }
  92             ATSFontFamilyIteratorRelease(&theFontFamilyIterator);
  93             cfFontFamilies = atsfontnames;
  94 #endif
  95         }
  96 #elif wxOSX_USE_IPHONE
  97         cfFontFamilies = CopyAvailableFontFamilyNames();
  98 #endif
  99
 100         CFIndex count = CFArrayGetCount(cfFontFamilies);
 101         for(CFIndex i = 0; i < count; i++)
 102         {
 103             CFStringRef fontName = (CFStringRef)CFArrayGetValueAtIndex(cfFontFamilies, i);
 104
 105             if ( encoding != wxFONTENCODING_SYSTEM || fixedWidthOnly)
 106             {
 107                 wxCFRef<CTFontRef> font(CTFontCreateWithName(fontName, 12.0, NULL));
 108                 if ( encoding != wxFONTENCODING_SYSTEM )
 109                 {
 110                     CFStringEncoding fontFamiliyEncoding = CTFontGetStringEncoding(font);
 111                     if ( fontFamiliyEncoding != macEncoding )
 112                         continue;
 113                 }
 114
 115                 if ( fixedWidthOnly )
 116                 {
 117                     CTFontSymbolicTraits traits = CTFontGetSymbolicTraits(font);
 118                     if ( (traits & kCTFontMonoSpaceTrait) == 0 )
 119                         continue;
 120                 }
 121
 122             }
 123
 124             wxCFStringRef cfName(wxCFRetain(fontName)) ;
 125             fontFamilies.Add(cfName.AsString(wxLocale::GetSystemEncoding()));
 126         }
 127
 128         CFRelease(cfFontFamilies);
 129     }
 130 #endif
 131     for ( size_t i = 0 ; i < fontFamilies.Count() ; ++i )
 132     {
 133         if ( OnFacename( fontFamilies[i] ) == false )
 134             break ;
 135     }
 136
 137     return true;
 138 }
 139
 140 bool wxFontEnumerator::EnumerateEncodings(const wxString& WXUNUSED(family))
 141 {
 142     wxFAIL_MSG(wxT("wxFontEnumerator::EnumerateEncodings() not yet implemented"));
 143
 144     return true;
 145 }
 146
 147 #endif // wxUSE_FONTENUM