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 #ifndef WX_PRECOMP
  18   #include "wx/font.h"
  19 #endif
  20
  21 #include "wx/fontenum.h"
  22 #include "wx/fontutil.h"
  23 #include "wx/fontmap.h"
  24 #include "wx/fontutil.h"
  25 #include "wx/encinfo.h"
  26
  27 #include "wx/mac/private.h"
  28
  29
  30 class wxFontEnumeratorHelper
  31 {
  32 public:
  33     wxFontEnumeratorHelper(wxFontEnumerator *fontEnum);
  34
  35     // control what exactly are we enumerating
  36     bool SetEncoding(wxFontEncoding encoding);
  37     void SetFixedOnly(bool fixedOnly)
  38         { m_fixedOnly = fixedOnly; }
  39
  40     // call to start enumeration
  41     void DoEnumerate();
  42
  43 private:
  44     // the object we forward calls to OnFont() to
  45     wxFontEnumerator *m_fontEnum;
  46
  47     // if != -1, enum only fonts which have this encoding
  48     int m_charset;
  49
  50     // if not empty, enum only the fonts with this facename
  51     wxString m_facename;
  52
  53     // if true, enum only fixed fonts
  54     bool m_fixedOnly;
  55 };
  56
  57 // ============================================================================
  58 // implementation
  59 // ============================================================================
  60
  61 // ----------------------------------------------------------------------------
  62 // wxFontEnumeratorHelper
  63 // ----------------------------------------------------------------------------
  64
  65 wxFontEnumeratorHelper::wxFontEnumeratorHelper(wxFontEnumerator *fontEnum)
  66 {
  67     m_fontEnum = fontEnum;
  68     m_charset = -1;
  69     m_fixedOnly = false;
  70 }
  71
  72 bool wxFontEnumeratorHelper::SetEncoding(wxFontEncoding encoding)
  73 {
  74     wxNativeEncodingInfo info;
  75     if ( !wxGetNativeFontEncoding( encoding, &info ) )
  76     {
  77         if ( !wxFontMapper::Get()->GetAltForEncoding( encoding, &info ) )
  78             // no such encodings at all
  79             return false;
  80     }
  81
  82     m_charset = info.charset;
  83     m_facename = info.facename;
  84
  85     return true;
  86 }
  87
  88 void wxFontEnumeratorHelper::DoEnumerate()
  89 {
  90     MenuHandle    menu;
  91     short         lines;
  92
  93     menu = NewMenu( 32000, "\pFont" );
  94     AppendResMenu( menu, 'FONT' );
  95     lines = CountMenuItems( menu );
  96
  97     for ( int i = 1; i < lines + 1; i ++ )
  98     {
  99         wxString c_name ;
 100 #if TARGET_API_MAC_CARBON
 101         CFStringRef menutext ;
 102         c_name = wxEmptyString ;
 103         if ( CopyMenuItemTextAsCFString (menu, i, &menutext) == noErr )
 104         {
 105             c_name = wxMacCFStringHolder(menutext).AsString(wxLocale::GetSystemEncoding());
 106         }
 107 #else
 108         Str255        p_name;
 109         GetMenuItemText( menu, i, p_name );
 110         c_name = wxMacMakeStringFromPascal( p_name );
 111 #endif
 112
 113 #if 0
 114         if ( m_fixedOnly )
 115         {
 116             // check that it's a fixed pitch font:
 117             // there is *no* error here: the flag name is misleading!
 118             if ( tm->tmPitchAndFamily & TMPF_FIXED_PITCH )
 119                 // not a fixed pitch font
 120                 return true;
 121         }
 122
 123         if ( m_charset != -1 )
 124         {
 125             // check that we have the right encoding
 126             if ( lf->lfCharSet != m_charset )
 127                 return true;
 128         }
 129 #endif
 130
 131         m_fontEnum->OnFacename( c_name );
 132     }
 133
 134     DisposeMenu( menu );
 135 }
 136
 137 // ----------------------------------------------------------------------------
 138 // wxFontEnumerator
 139 // ----------------------------------------------------------------------------
 140
 141 bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
 142                                           bool fixedWidthOnly)
 143 {
 144     wxFontEnumeratorHelper fe(this);
 145     if ( fe.SetEncoding(encoding) )
 146     {
 147         fe.SetFixedOnly(fixedWidthOnly);
 148
 149         fe.DoEnumerate();
 150     }
 151     // else: no such fonts, unknown encoding
 152
 153     return true;
 154 }
 155
 156 bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
 157 {
 158     wxFAIL_MSG(wxT("wxFontEnumerator::EnumerateEncodings() not yet implemented"));
 159
 160     return true;
 161 }
 162
 163 #endif