| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: msw/fontenum.cpp |
| 3 | // Purpose: wxFontEnumerator class for Windows |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: David Webster to add support for font encodings |
| 6 | // Created: 01/03/00 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #if wxUSE_FONTMAP |
| 24 | |
| 25 | #ifndef WX_PRECOMP |
| 26 | #include "wx/font.h" |
| 27 | #endif |
| 28 | |
| 29 | #include "wx/fontenum.h" |
| 30 | #include "wx/fontmap.h" |
| 31 | #include "wx/encinfo.h" |
| 32 | |
| 33 | #include "wx/os2/private.h" |
| 34 | |
| 35 | // ---------------------------------------------------------------------------- |
| 36 | // private classes |
| 37 | // ---------------------------------------------------------------------------- |
| 38 | |
| 39 | class wxFontEnumeratorHelper |
| 40 | { |
| 41 | public: |
| 42 | wxFontEnumeratorHelper(wxFontEnumerator *fontEnum); |
| 43 | |
| 44 | // control what exactly are we enumerating |
| 45 | bool SetEncoding(wxFontEncoding encoding); |
| 46 | void SetFixedOnly(bool fixedOnly) |
| 47 | { m_fixedOnly = fixedOnly; } |
| 48 | |
| 49 | // call to start enumeration |
| 50 | void DoEnumerate(); |
| 51 | |
| 52 | // called by our font enumeration proc |
| 53 | bool OnFont(/*const LPLOGFONT lf, const LPTEXTMETRIC tm*/) const; |
| 54 | |
| 55 | private: |
| 56 | // the object we forward calls to OnFont() to |
| 57 | wxFontEnumerator *m_fontEnum; |
| 58 | |
| 59 | // if != -1, enum only fonts which have this encoding |
| 60 | int m_charset; |
| 61 | |
| 62 | // if not empty, enum only the fonts with this facename |
| 63 | wxString m_facename; |
| 64 | |
| 65 | // if true, enum only fixed fonts |
| 66 | bool m_fixedOnly; |
| 67 | }; |
| 68 | |
| 69 | // ---------------------------------------------------------------------------- |
| 70 | // private functions |
| 71 | // ---------------------------------------------------------------------------- |
| 72 | |
| 73 | // TODO: |
| 74 | /* |
| 75 | int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm, |
| 76 | DWORD dwStyle, LONG lParam); |
| 77 | */ |
| 78 | |
| 79 | // ============================================================================ |
| 80 | // implementation |
| 81 | // ============================================================================ |
| 82 | |
| 83 | // ---------------------------------------------------------------------------- |
| 84 | // wxFontEnumeratorHelper |
| 85 | // ---------------------------------------------------------------------------- |
| 86 | |
| 87 | wxFontEnumeratorHelper::wxFontEnumeratorHelper(wxFontEnumerator *fontEnum) |
| 88 | { |
| 89 | m_fontEnum = fontEnum; |
| 90 | m_charset = -1; |
| 91 | m_fixedOnly = FALSE; |
| 92 | } |
| 93 | |
| 94 | bool wxFontEnumeratorHelper::SetEncoding(wxFontEncoding encoding) |
| 95 | { |
| 96 | wxNativeEncodingInfo info; |
| 97 | if ( !wxGetNativeFontEncoding(encoding, &info) ) |
| 98 | { |
| 99 | if ( !wxFontMapper::Get()->GetAltForEncoding(encoding, &info) ) |
| 100 | { |
| 101 | // no such encodings at all |
| 102 | return FALSE; |
| 103 | } |
| 104 | } |
| 105 | m_charset = info.charset; |
| 106 | m_facename = info.facename; |
| 107 | |
| 108 | return true; |
| 109 | } |
| 110 | |
| 111 | #define wxFONTENUMPROC FONTENUMPROC |
| 112 | |
| 113 | void wxFontEnumeratorHelper::DoEnumerate() |
| 114 | { |
| 115 | // TODO: |
| 116 | /* |
| 117 | HDC hDC = ::GetDC(NULL); |
| 118 | |
| 119 | #ifdef __WIN32__ |
| 120 | LOGFONT lf; |
| 121 | lf.lfCharSet = m_charset; |
| 122 | wxStrncpy(lf.lfFaceName, m_facename, WXSIZEOF(lf.lfFaceName)); |
| 123 | lf.lfPitchAndFamily = 0; |
| 124 | ::EnumFontFamiliesEx(hDC, &lf, (wxFONTENUMPROC)wxFontEnumeratorProc, |
| 125 | (LPARAM)this, 0) ; |
| 126 | #else // Win16 |
| 127 | ::EnumFonts(hDC, (LPTSTR)NULL, (FONTENUMPROC)wxFontEnumeratorProc, |
| 128 | #ifdef STRICT |
| 129 | (LPARAM) |
| 130 | #else |
| 131 | (LPSTR) |
| 132 | #endif |
| 133 | this); |
| 134 | #endif // Win32/16 |
| 135 | |
| 136 | ::ReleaseDC(NULL, hDC); |
| 137 | */ |
| 138 | } |
| 139 | |
| 140 | bool wxFontEnumeratorHelper::OnFont(/*const LPLOGFONT lf, |
| 141 | const LPTEXTMETRIC tm */) const |
| 142 | { |
| 143 | // TODO: |
| 144 | /* |
| 145 | if ( m_fixedOnly ) |
| 146 | { |
| 147 | // check that it's a fixed pitch font (there is *no* error here, the |
| 148 | // flag name is misleading!) |
| 149 | if ( tm->tmPitchAndFamily & TMPF_FIXED_PITCH ) |
| 150 | { |
| 151 | // not a fixed pitch font |
| 152 | return true; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | if ( m_charset != -1 ) |
| 157 | { |
| 158 | // check that we have the right encoding |
| 159 | if ( lf->lfCharSet != m_charset ) |
| 160 | { |
| 161 | return true; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | return m_fontEnum->OnFacename(lf->lfFaceName); |
| 166 | */ |
| 167 | return true; |
| 168 | } |
| 169 | |
| 170 | // ---------------------------------------------------------------------------- |
| 171 | // wxFontEnumerator |
| 172 | // ---------------------------------------------------------------------------- |
| 173 | |
| 174 | bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding, |
| 175 | bool fixedWidthOnly) |
| 176 | { |
| 177 | wxFontEnumeratorHelper fe(this); |
| 178 | if ( fe.SetEncoding(encoding) ) |
| 179 | { |
| 180 | fe.SetFixedOnly(fixedWidthOnly); |
| 181 | |
| 182 | fe.DoEnumerate(); |
| 183 | } |
| 184 | // else: no such fonts, unknown encoding |
| 185 | |
| 186 | return true; |
| 187 | } |
| 188 | |
| 189 | bool wxFontEnumerator::EnumerateEncodings(const wxString& WXUNUSED(family)) |
| 190 | { |
| 191 | wxFAIL_MSG(wxT("TODO")); |
| 192 | |
| 193 | return true; |
| 194 | } |
| 195 | |
| 196 | // ---------------------------------------------------------------------------- |
| 197 | // Windows callbacks |
| 198 | // ---------------------------------------------------------------------------- |
| 199 | |
| 200 | // TODO: |
| 201 | /* |
| 202 | int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm, |
| 203 | DWORD dwStyle, LONG lParam) |
| 204 | { |
| 205 | // Get rid of any fonts that we don't want... |
| 206 | if ( dwStyle != TRUETYPE_FONTTYPE ) |
| 207 | { |
| 208 | // continue enumeration |
| 209 | return TRUE; |
| 210 | } |
| 211 | |
| 212 | wxFontEnumeratorHelper *fontEnum = (wxFontEnumeratorHelper *)lParam; |
| 213 | |
| 214 | return fontEnum->OnFont(lplf, lptm); |
| 215 | } |
| 216 | */ |
| 217 | |
| 218 | #endif // wxUSE_FONTMAP |