| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/unix/fontenum.cpp |
| 3 | // Purpose: wxFontEnumerator class for X11/GDK |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 01.10.99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Vadim Zeitlin |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 21 | #pragma implementation "fontenum.h" |
| 22 | #endif |
| 23 | |
| 24 | // for compilers that support precompilation, includes "wx.h". |
| 25 | #include "wx/wxprec.h" |
| 26 | |
| 27 | #include "wx/dynarray.h" |
| 28 | #include "wx/string.h" |
| 29 | #include "wx/regex.h" |
| 30 | #include "wx/utils.h" |
| 31 | #include "wx/app.h" |
| 32 | #include "wx/fontmap.h" |
| 33 | #include "wx/fontenum.h" |
| 34 | #include "wx/fontutil.h" |
| 35 | #include "wx/encinfo.h" |
| 36 | |
| 37 | // ---------------------------------------------------------------------------- |
| 38 | // Pango |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | |
| 41 | #if wxUSE_PANGO |
| 42 | |
| 43 | #include "pango/pango.h" |
| 44 | |
| 45 | #ifdef __WXGTK20__ |
| 46 | #include "gtk/gtk.h" |
| 47 | extern GtkWidget *wxGetRootWindow(); |
| 48 | #endif |
| 49 | |
| 50 | static int |
| 51 | cmp_families (const void *a, const void *b) |
| 52 | { |
| 53 | const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a); |
| 54 | const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b); |
| 55 | |
| 56 | return g_utf8_collate (a_name, b_name); |
| 57 | } |
| 58 | |
| 59 | // I admit I don't yet understand encodings with Pango |
| 60 | bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding, |
| 61 | bool fixedWidthOnly) |
| 62 | { |
| 63 | #ifndef HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE |
| 64 | if ( fixedWidthOnly ) |
| 65 | { |
| 66 | OnFacename( wxT("monospace") ); |
| 67 | } |
| 68 | else |
| 69 | #endif |
| 70 | { |
| 71 | PangoFontFamily **families = NULL; |
| 72 | gint n_families = 0; |
| 73 | pango_context_list_families ( |
| 74 | #ifdef __WXGTK20__ |
| 75 | gtk_widget_get_pango_context( wxGetRootWindow() ), |
| 76 | #else |
| 77 | wxTheApp->GetPangoContext(), |
| 78 | #endif |
| 79 | &families, &n_families ); |
| 80 | qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families); |
| 81 | |
| 82 | for (int i=0; i<n_families; i++) |
| 83 | { |
| 84 | #ifdef HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE |
| 85 | if (!fixedWidthOnly || |
| 86 | pango_font_family_is_monospace(families[i])) |
| 87 | #endif |
| 88 | { |
| 89 | const gchar *name = pango_font_family_get_name(families[i]); |
| 90 | OnFacename(wxString(name, wxConvUTF8)); |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | return TRUE; |
| 96 | } |
| 97 | |
| 98 | bool wxFontEnumerator::EnumerateEncodings(const wxString& family) |
| 99 | { |
| 100 | return FALSE; |
| 101 | } |
| 102 | |
| 103 | |
| 104 | #else |
| 105 | // Pango |
| 106 | |
| 107 | #ifdef __VMS__ // Xlib.h for VMS is not (yet) compatible with C++ |
| 108 | // The resulting warnings are switched off here |
| 109 | #pragma message disable nosimpint |
| 110 | #endif |
| 111 | #include <X11/Xlib.h> |
| 112 | #ifdef __VMS__ |
| 113 | #pragma message enable nosimpint |
| 114 | #endif |
| 115 | |
| 116 | // ---------------------------------------------------------------------------- |
| 117 | // private functions |
| 118 | // ---------------------------------------------------------------------------- |
| 119 | |
| 120 | // create the list of all fonts with the given spacing and encoding |
| 121 | static char **CreateFontList(wxChar spacing, wxFontEncoding encoding, |
| 122 | int *nFonts); |
| 123 | |
| 124 | // extract all font families from the given font list and call our |
| 125 | // OnFacename() for each of them |
| 126 | static bool ProcessFamiliesFromFontList(wxFontEnumerator *This, |
| 127 | char **fonts, |
| 128 | int nFonts); |
| 129 | |
| 130 | |
| 131 | // ---------------------------------------------------------------------------- |
| 132 | // private types |
| 133 | // ---------------------------------------------------------------------------- |
| 134 | |
| 135 | // ============================================================================ |
| 136 | // implementation |
| 137 | // ============================================================================ |
| 138 | |
| 139 | // ---------------------------------------------------------------------------- |
| 140 | // helpers |
| 141 | // ---------------------------------------------------------------------------- |
| 142 | |
| 143 | #if !wxUSE_NANOX |
| 144 | static char **CreateFontList(wxChar spacing, |
| 145 | wxFontEncoding encoding, |
| 146 | int *nFonts) |
| 147 | { |
| 148 | wxNativeEncodingInfo info; |
| 149 | wxGetNativeFontEncoding(encoding, &info); |
| 150 | |
| 151 | #if wxUSE_FONTMAP |
| 152 | if ( !wxTestFontEncoding(info) ) |
| 153 | { |
| 154 | // ask font mapper for a replacement |
| 155 | (void)wxFontMapper::Get()->GetAltForEncoding(encoding, &info); |
| 156 | } |
| 157 | #endif // wxUSE_FONTMAP |
| 158 | |
| 159 | wxString pattern; |
| 160 | pattern.Printf(wxT("-*-*-*-*-*-*-*-*-*-*-%c-*-%s-%s"), |
| 161 | spacing, |
| 162 | info.xregistry.c_str(), |
| 163 | info.xencoding.c_str()); |
| 164 | |
| 165 | // get the list of all fonts |
| 166 | return XListFonts((Display *)wxGetDisplay(), pattern.mb_str(), 32767, nFonts); |
| 167 | } |
| 168 | |
| 169 | static bool ProcessFamiliesFromFontList(wxFontEnumerator *This, |
| 170 | char **fonts, |
| 171 | int nFonts) |
| 172 | { |
| 173 | #if wxUSE_REGEX |
| 174 | wxRegEx re(wxT("^(-[^-]*){14}$"), wxRE_NOSUB); |
| 175 | #endif // wxUSE_REGEX |
| 176 | |
| 177 | // extract the list of (unique) font families |
| 178 | wxSortedArrayString families; |
| 179 | for ( int n = 0; n < nFonts; n++ ) |
| 180 | { |
| 181 | char *font = fonts[n]; |
| 182 | #if wxUSE_REGEX |
| 183 | if ( !re.Matches(font) ) |
| 184 | #else // !wxUSE_REGEX |
| 185 | if ( !wxString(font).Matches(wxT("-*-*-*-*-*-*-*-*-*-*-*-*-*-*")) ) |
| 186 | #endif // wxUSE_REGEX/!wxUSE_REGEX |
| 187 | { |
| 188 | // it's not a full font name (probably an alias) |
| 189 | continue; |
| 190 | } |
| 191 | |
| 192 | char *dash = strchr(font + 1, '-'); |
| 193 | char *family = dash + 1; |
| 194 | dash = strchr(family, '-'); |
| 195 | *dash = '\0'; // !NULL because Matches() above succeeded |
| 196 | wxString fam(family); |
| 197 | |
| 198 | if ( families.Index(fam) == wxNOT_FOUND ) |
| 199 | { |
| 200 | if ( !This->OnFacename(fam) ) |
| 201 | { |
| 202 | // stop enumerating |
| 203 | return FALSE; |
| 204 | } |
| 205 | |
| 206 | families.Add(fam); |
| 207 | } |
| 208 | //else: already seen |
| 209 | } |
| 210 | |
| 211 | return TRUE; |
| 212 | } |
| 213 | #endif |
| 214 | // wxUSE_NANOX |
| 215 | |
| 216 | // ---------------------------------------------------------------------------- |
| 217 | // wxFontEnumerator |
| 218 | // ---------------------------------------------------------------------------- |
| 219 | |
| 220 | bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding, |
| 221 | bool fixedWidthOnly) |
| 222 | { |
| 223 | #if wxUSE_NANOX |
| 224 | return FALSE; |
| 225 | #else |
| 226 | int nFonts; |
| 227 | char **fonts; |
| 228 | |
| 229 | if ( fixedWidthOnly ) |
| 230 | { |
| 231 | bool cont = TRUE; |
| 232 | fonts = CreateFontList(wxT('m'), encoding, &nFonts); |
| 233 | if ( fonts ) |
| 234 | { |
| 235 | cont = ProcessFamiliesFromFontList(this, fonts, nFonts); |
| 236 | |
| 237 | XFreeFontNames(fonts); |
| 238 | } |
| 239 | |
| 240 | if ( !cont ) |
| 241 | { |
| 242 | return TRUE; |
| 243 | } |
| 244 | |
| 245 | fonts = CreateFontList(wxT('c'), encoding, &nFonts); |
| 246 | if ( !fonts ) |
| 247 | { |
| 248 | return TRUE; |
| 249 | } |
| 250 | } |
| 251 | else |
| 252 | { |
| 253 | fonts = CreateFontList(wxT('*'), encoding, &nFonts); |
| 254 | |
| 255 | if ( !fonts ) |
| 256 | { |
| 257 | // it's ok if there are no fonts in given encoding - but it's not |
| 258 | // ok if there are no fonts at all |
| 259 | wxASSERT_MSG(encoding != wxFONTENCODING_SYSTEM, |
| 260 | wxT("No fonts at all on this system?")); |
| 261 | |
| 262 | return FALSE; |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | (void)ProcessFamiliesFromFontList(this, fonts, nFonts); |
| 267 | |
| 268 | XFreeFontNames(fonts); |
| 269 | return TRUE; |
| 270 | #endif |
| 271 | // wxUSE_NANOX |
| 272 | } |
| 273 | |
| 274 | bool wxFontEnumerator::EnumerateEncodings(const wxString& family) |
| 275 | { |
| 276 | #if wxUSE_NANOX |
| 277 | return FALSE; |
| 278 | #else |
| 279 | wxString pattern; |
| 280 | pattern.Printf(wxT("-*-%s-*-*-*-*-*-*-*-*-*-*-*-*"), |
| 281 | family.IsEmpty() ? wxT("*") : family.c_str()); |
| 282 | |
| 283 | // get the list of all fonts |
| 284 | int nFonts; |
| 285 | char **fonts = XListFonts((Display *)wxGetDisplay(), pattern.mb_str(), |
| 286 | 32767, &nFonts); |
| 287 | |
| 288 | if ( !fonts ) |
| 289 | { |
| 290 | // unknown family? |
| 291 | return FALSE; |
| 292 | } |
| 293 | |
| 294 | // extract the list of (unique) encodings |
| 295 | wxSortedArrayString encodings; |
| 296 | for ( int n = 0; n < nFonts; n++ ) |
| 297 | { |
| 298 | char *font = fonts[n]; |
| 299 | if ( !wxString(font).Matches(wxT("-*-*-*-*-*-*-*-*-*-*-*-*-*-*")) ) |
| 300 | { |
| 301 | // it's not a full font name (probably an alias) |
| 302 | continue; |
| 303 | } |
| 304 | |
| 305 | // extract the family |
| 306 | char *dash = strchr(font + 1, '-'); |
| 307 | char *familyFont = dash + 1; |
| 308 | dash = strchr(familyFont, '-'); |
| 309 | *dash = '\0'; // !NULL because Matches() above succeeded |
| 310 | |
| 311 | if ( !family.IsEmpty() && (family != familyFont) ) |
| 312 | { |
| 313 | // family doesn't match |
| 314 | continue; |
| 315 | } |
| 316 | |
| 317 | // now extract the registry/encoding |
| 318 | char *p = dash + 1; // just after the dash after family |
| 319 | dash = strrchr(p, '-'); |
| 320 | |
| 321 | wxString registry(dash + 1); |
| 322 | *dash = '\0'; |
| 323 | |
| 324 | dash = strrchr(p, '-'); |
| 325 | wxString encoding(dash + 1); |
| 326 | |
| 327 | encoding << wxT('-') << registry; |
| 328 | if ( encodings.Index(encoding) == wxNOT_FOUND ) |
| 329 | { |
| 330 | if ( !OnFontEncoding(familyFont, encoding) ) |
| 331 | { |
| 332 | break; |
| 333 | } |
| 334 | |
| 335 | encodings.Add(encoding); |
| 336 | } |
| 337 | //else: already had this one |
| 338 | } |
| 339 | |
| 340 | XFreeFontNames(fonts); |
| 341 | |
| 342 | return TRUE; |
| 343 | #endif |
| 344 | // wxUSE_NANOX |
| 345 | } |
| 346 | |
| 347 | #endif |
| 348 | // __WXGTK20__ |