| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: font.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Id: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | // ============================================================================ |
| 11 | // declarations |
| 12 | // ============================================================================ |
| 13 | |
| 14 | // ---------------------------------------------------------------------------- |
| 15 | // headers |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | |
| 18 | #ifdef __GNUG__ |
| 19 | #pragma implementation "font.h" |
| 20 | #endif |
| 21 | |
| 22 | #include "wx/font.h" |
| 23 | #include "wx/fontutil.h" |
| 24 | #include "wx/cmndata.h" |
| 25 | #include "wx/utils.h" |
| 26 | #include "wx/log.h" |
| 27 | #include "wx/gdicmn.h" |
| 28 | #include "wx/tokenzr.h" |
| 29 | #include "wx/settings.h" |
| 30 | |
| 31 | #include <strings.h> |
| 32 | |
| 33 | #include <gdk/gdk.h> |
| 34 | #include <gdk/gdkprivate.h> |
| 35 | #include <gtk/gtk.h> |
| 36 | |
| 37 | // ---------------------------------------------------------------------------- |
| 38 | // wxFontRefData |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | |
| 41 | class wxFontRefData : public wxObjectRefData |
| 42 | { |
| 43 | public: |
| 44 | wxFontRefData(int size = wxDEFAULT, |
| 45 | int family = wxDEFAULT, |
| 46 | int style = wxDEFAULT, |
| 47 | int weight = wxDEFAULT, |
| 48 | bool underlined = FALSE, |
| 49 | const wxString& faceName = wxEmptyString, |
| 50 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); |
| 51 | wxFontRefData( const wxFontRefData& data ); |
| 52 | virtual ~wxFontRefData(); |
| 53 | |
| 54 | protected: |
| 55 | // common part of all ctors |
| 56 | void Init(int pointSize, |
| 57 | int family, |
| 58 | int style, |
| 59 | int weight, |
| 60 | bool underlined, |
| 61 | const wxString& faceName, |
| 62 | wxFontEncoding encoding); |
| 63 | |
| 64 | private: |
| 65 | wxList m_scaled_xfonts; |
| 66 | int m_pointSize; |
| 67 | int m_family, |
| 68 | m_style, |
| 69 | m_weight; |
| 70 | bool m_underlined; |
| 71 | wxString m_faceName; |
| 72 | wxFontEncoding m_encoding; |
| 73 | |
| 74 | wxNativeFontInfo m_nativeFontInfo; |
| 75 | |
| 76 | friend class wxFont; |
| 77 | }; |
| 78 | |
| 79 | // ============================================================================ |
| 80 | // implementation |
| 81 | // ============================================================================ |
| 82 | |
| 83 | // ---------------------------------------------------------------------------- |
| 84 | // wxFontRefData |
| 85 | // ---------------------------------------------------------------------------- |
| 86 | |
| 87 | void wxFontRefData::Init(int pointSize, |
| 88 | int family, |
| 89 | int style, |
| 90 | int weight, |
| 91 | bool underlined, |
| 92 | const wxString& faceName, |
| 93 | wxFontEncoding encoding) |
| 94 | { |
| 95 | if (family == wxDEFAULT) |
| 96 | m_family = wxSWISS; |
| 97 | else |
| 98 | m_family = family; |
| 99 | |
| 100 | m_faceName = faceName; |
| 101 | |
| 102 | if (style == wxDEFAULT) |
| 103 | m_style = wxNORMAL; |
| 104 | else |
| 105 | m_style = style; |
| 106 | |
| 107 | if (weight == wxDEFAULT) |
| 108 | m_weight = wxNORMAL; |
| 109 | else |
| 110 | m_weight = weight; |
| 111 | |
| 112 | if (pointSize == wxDEFAULT) |
| 113 | m_pointSize = 12; |
| 114 | else |
| 115 | m_pointSize = pointSize; |
| 116 | |
| 117 | m_underlined = underlined; |
| 118 | m_encoding = encoding; |
| 119 | } |
| 120 | |
| 121 | wxFontRefData::wxFontRefData( const wxFontRefData& data ) |
| 122 | : m_scaled_xfonts(wxKEY_INTEGER) |
| 123 | { |
| 124 | Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight, |
| 125 | data.m_underlined, data.m_faceName, data.m_encoding); |
| 126 | } |
| 127 | |
| 128 | wxFontRefData::wxFontRefData(int size, int family, int style, |
| 129 | int weight, bool underlined, |
| 130 | const wxString& faceName, |
| 131 | wxFontEncoding encoding) |
| 132 | : m_scaled_xfonts(wxKEY_INTEGER) |
| 133 | { |
| 134 | Init(size, family, style, weight, underlined, faceName, encoding); |
| 135 | } |
| 136 | |
| 137 | wxFontRefData::~wxFontRefData() |
| 138 | { |
| 139 | wxNode *node = m_scaled_xfonts.First(); |
| 140 | while (node) |
| 141 | { |
| 142 | GdkFont *font = (GdkFont*)node->Data(); |
| 143 | wxNode *next = node->Next(); |
| 144 | gdk_font_unref( font ); |
| 145 | node = next; |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | // ---------------------------------------------------------------------------- |
| 150 | // wxNativeFontInfo |
| 151 | // ---------------------------------------------------------------------------- |
| 152 | |
| 153 | bool wxNativeFontInfo::FromString(const wxString& s) |
| 154 | { |
| 155 | wxStringTokenizer tokenizer(s, _T(";")); |
| 156 | |
| 157 | wxString token = tokenizer.GetNextToken(); |
| 158 | // |
| 159 | // Ignore the version for now |
| 160 | // |
| 161 | |
| 162 | xFontName = tokenizer.GetNextToken(); |
| 163 | if(!xFontName) |
| 164 | return FALSE; |
| 165 | |
| 166 | return TRUE; |
| 167 | } |
| 168 | |
| 169 | wxString wxNativeFontInfo::ToString() const |
| 170 | { |
| 171 | wxString s; |
| 172 | |
| 173 | s.Printf(_T("%d;%s"), |
| 174 | 0, // version |
| 175 | xFontName.c_str()); |
| 176 | |
| 177 | return s; |
| 178 | } |
| 179 | |
| 180 | // ---------------------------------------------------------------------------- |
| 181 | // wxFont |
| 182 | // ---------------------------------------------------------------------------- |
| 183 | |
| 184 | IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject) |
| 185 | |
| 186 | void wxFont::Init() |
| 187 | { |
| 188 | if (wxTheFontList) |
| 189 | wxTheFontList->Append( this ); |
| 190 | } |
| 191 | |
| 192 | wxFont::wxFont(const wxNativeFontInfo& info) |
| 193 | { |
| 194 | Init(); |
| 195 | |
| 196 | Create(info.xFontName); |
| 197 | } |
| 198 | |
| 199 | bool wxFont::Create(const wxNativeFontInfo& info) |
| 200 | { |
| 201 | return Create(info.xFontName); |
| 202 | } |
| 203 | |
| 204 | bool wxFont::Create( int pointSize, |
| 205 | int family, |
| 206 | int style, |
| 207 | int weight, |
| 208 | bool underlined, |
| 209 | const wxString& face, |
| 210 | wxFontEncoding encoding) |
| 211 | { |
| 212 | m_refData = new wxFontRefData(pointSize, family, style, weight, |
| 213 | underlined, face, encoding); |
| 214 | |
| 215 | return TRUE; |
| 216 | } |
| 217 | |
| 218 | bool wxFont::Create(const wxString& fontname, wxFontEncoding enc) |
| 219 | { |
| 220 | if( !fontname ) |
| 221 | { |
| 222 | *this = wxSystemSettings::GetSystemFont( wxSYS_DEFAULT_GUI_FONT); |
| 223 | return TRUE; |
| 224 | } |
| 225 | |
| 226 | m_refData = new wxFontRefData(); |
| 227 | |
| 228 | M_FONTDATA->m_nativeFontInfo.xFontName = fontname; // X font name |
| 229 | |
| 230 | wxString tmp; |
| 231 | |
| 232 | wxStringTokenizer tn( fontname, wxT("-") ); |
| 233 | |
| 234 | tn.GetNextToken(); // skip initial empty token |
| 235 | tn.GetNextToken(); // foundry |
| 236 | |
| 237 | |
| 238 | M_FONTDATA->m_faceName = tn.GetNextToken(); // family |
| 239 | |
| 240 | tmp = tn.GetNextToken().MakeUpper(); // weight |
| 241 | if (tmp == wxT("BOLD")) M_FONTDATA->m_weight = wxBOLD; |
| 242 | if (tmp == wxT("BLACK")) M_FONTDATA->m_weight = wxBOLD; |
| 243 | if (tmp == wxT("EXTRABOLD")) M_FONTDATA->m_weight = wxBOLD; |
| 244 | if (tmp == wxT("DEMIBOLD")) M_FONTDATA->m_weight = wxBOLD; |
| 245 | if (tmp == wxT("ULTRABOLD")) M_FONTDATA->m_weight = wxBOLD; |
| 246 | |
| 247 | if (tmp == wxT("LIGHT")) M_FONTDATA->m_weight = wxLIGHT; |
| 248 | if (tmp == wxT("THIN")) M_FONTDATA->m_weight = wxLIGHT; |
| 249 | |
| 250 | tmp = tn.GetNextToken().MakeUpper(); // slant |
| 251 | if (tmp == wxT("I")) M_FONTDATA->m_style = wxITALIC; |
| 252 | if (tmp == wxT("O")) M_FONTDATA->m_style = wxITALIC; |
| 253 | |
| 254 | tn.GetNextToken(); // set width |
| 255 | tn.GetNextToken(); // add. style |
| 256 | tn.GetNextToken(); // pixel size |
| 257 | |
| 258 | tmp = tn.GetNextToken(); // pointsize |
| 259 | if (tmp != wxT("*")) |
| 260 | { |
| 261 | long num = wxStrtol (tmp.c_str(), (wxChar **) NULL, 10); |
| 262 | M_FONTDATA->m_pointSize = (int)(num / 10); |
| 263 | } |
| 264 | |
| 265 | tn.GetNextToken(); // x-res |
| 266 | tn.GetNextToken(); // y-res |
| 267 | |
| 268 | tmp = tn.GetNextToken().MakeUpper(); // spacing |
| 269 | |
| 270 | if (tmp == wxT("M")) |
| 271 | M_FONTDATA->m_family = wxMODERN; |
| 272 | else if (M_FONTDATA->m_faceName == wxT("TIMES")) |
| 273 | M_FONTDATA->m_family = wxROMAN; |
| 274 | else if (M_FONTDATA->m_faceName == wxT("HELVETICA")) |
| 275 | M_FONTDATA->m_family = wxSWISS; |
| 276 | else if (M_FONTDATA->m_faceName == wxT("LUCIDATYPEWRITER")) |
| 277 | M_FONTDATA->m_family = wxTELETYPE; |
| 278 | else if (M_FONTDATA->m_faceName == wxT("LUCIDA")) |
| 279 | M_FONTDATA->m_family = wxDECORATIVE; |
| 280 | else if (M_FONTDATA->m_faceName == wxT("UTOPIA")) |
| 281 | M_FONTDATA->m_family = wxSCRIPT; |
| 282 | |
| 283 | tn.GetNextToken(); // avg width |
| 284 | |
| 285 | // deal with font encoding |
| 286 | M_FONTDATA->m_encoding = enc; |
| 287 | if ( M_FONTDATA->m_encoding == wxFONTENCODING_SYSTEM ) |
| 288 | { |
| 289 | wxString registry = tn.GetNextToken().MakeUpper(), |
| 290 | encoding = tn.GetNextToken().MakeUpper(); |
| 291 | |
| 292 | if ( registry == _T("ISO8859") ) |
| 293 | { |
| 294 | int cp; |
| 295 | if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 ) |
| 296 | { |
| 297 | M_FONTDATA->m_encoding = |
| 298 | (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1); |
| 299 | } |
| 300 | } |
| 301 | else if ( registry == _T("MICROSOFT") ) |
| 302 | { |
| 303 | int cp; |
| 304 | if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 ) |
| 305 | { |
| 306 | M_FONTDATA->m_encoding = |
| 307 | (wxFontEncoding)(wxFONTENCODING_CP1250 + cp); |
| 308 | } |
| 309 | } |
| 310 | else if ( registry == _T("KOI8") ) |
| 311 | { |
| 312 | M_FONTDATA->m_encoding = wxFONTENCODING_KOI8; |
| 313 | } |
| 314 | //else: unknown encoding - may be give a warning here? |
| 315 | else |
| 316 | return FALSE; |
| 317 | } |
| 318 | return TRUE; |
| 319 | } |
| 320 | |
| 321 | void wxFont::Unshare() |
| 322 | { |
| 323 | if (!m_refData) |
| 324 | { |
| 325 | m_refData = new wxFontRefData(); |
| 326 | } |
| 327 | else |
| 328 | { |
| 329 | wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData); |
| 330 | UnRef(); |
| 331 | m_refData = ref; |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | wxFont::~wxFont() |
| 336 | { |
| 337 | if (wxTheFontList) |
| 338 | wxTheFontList->DeleteObject( this ); |
| 339 | } |
| 340 | |
| 341 | // ---------------------------------------------------------------------------- |
| 342 | // accessors |
| 343 | // ---------------------------------------------------------------------------- |
| 344 | |
| 345 | int wxFont::GetPointSize() const |
| 346 | { |
| 347 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); |
| 348 | |
| 349 | return M_FONTDATA->m_pointSize; |
| 350 | } |
| 351 | |
| 352 | wxString wxFont::GetFaceName() const |
| 353 | { |
| 354 | wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") ); |
| 355 | |
| 356 | return M_FONTDATA->m_faceName; |
| 357 | } |
| 358 | |
| 359 | int wxFont::GetFamily() const |
| 360 | { |
| 361 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); |
| 362 | |
| 363 | return M_FONTDATA->m_family; |
| 364 | } |
| 365 | |
| 366 | int wxFont::GetStyle() const |
| 367 | { |
| 368 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); |
| 369 | |
| 370 | return M_FONTDATA->m_style; |
| 371 | } |
| 372 | |
| 373 | int wxFont::GetWeight() const |
| 374 | { |
| 375 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); |
| 376 | |
| 377 | return M_FONTDATA->m_weight; |
| 378 | } |
| 379 | |
| 380 | bool wxFont::GetUnderlined() const |
| 381 | { |
| 382 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") ); |
| 383 | |
| 384 | return M_FONTDATA->m_underlined; |
| 385 | } |
| 386 | |
| 387 | |
| 388 | wxFontEncoding wxFont::GetEncoding() const |
| 389 | { |
| 390 | wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") ); |
| 391 | |
| 392 | return M_FONTDATA->m_encoding; |
| 393 | } |
| 394 | |
| 395 | wxNativeFontInfo *wxFont::GetNativeFontInfo() const |
| 396 | { |
| 397 | wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") ); |
| 398 | |
| 399 | if(M_FONTDATA->m_nativeFontInfo.xFontName.IsEmpty()) |
| 400 | GetInternalFont(); |
| 401 | |
| 402 | return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo); |
| 403 | } |
| 404 | |
| 405 | |
| 406 | // ---------------------------------------------------------------------------- |
| 407 | // change font attributes |
| 408 | // ---------------------------------------------------------------------------- |
| 409 | |
| 410 | void wxFont::SetPointSize(int pointSize) |
| 411 | { |
| 412 | Unshare(); |
| 413 | |
| 414 | M_FONTDATA->m_pointSize = pointSize; |
| 415 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now |
| 416 | } |
| 417 | |
| 418 | void wxFont::SetFamily(int family) |
| 419 | { |
| 420 | Unshare(); |
| 421 | |
| 422 | M_FONTDATA->m_family = family; |
| 423 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now |
| 424 | } |
| 425 | |
| 426 | void wxFont::SetStyle(int style) |
| 427 | { |
| 428 | Unshare(); |
| 429 | |
| 430 | M_FONTDATA->m_style = style; |
| 431 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now |
| 432 | } |
| 433 | |
| 434 | void wxFont::SetWeight(int weight) |
| 435 | { |
| 436 | Unshare(); |
| 437 | |
| 438 | M_FONTDATA->m_weight = weight; |
| 439 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now |
| 440 | } |
| 441 | |
| 442 | void wxFont::SetFaceName(const wxString& faceName) |
| 443 | { |
| 444 | Unshare(); |
| 445 | |
| 446 | M_FONTDATA->m_faceName = faceName; |
| 447 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now |
| 448 | } |
| 449 | |
| 450 | void wxFont::SetUnderlined(bool underlined) |
| 451 | { |
| 452 | Unshare(); |
| 453 | |
| 454 | M_FONTDATA->m_underlined = underlined; |
| 455 | } |
| 456 | |
| 457 | void wxFont::SetEncoding(wxFontEncoding encoding) |
| 458 | { |
| 459 | Unshare(); |
| 460 | |
| 461 | M_FONTDATA->m_encoding = encoding; |
| 462 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now |
| 463 | } |
| 464 | |
| 465 | void wxFont::SetNativeFontInfo(const wxNativeFontInfo& info) |
| 466 | { |
| 467 | Unshare(); |
| 468 | |
| 469 | M_FONTDATA->m_nativeFontInfo = info; |
| 470 | } |
| 471 | |
| 472 | // ---------------------------------------------------------------------------- |
| 473 | // get internal representation of font |
| 474 | // ---------------------------------------------------------------------------- |
| 475 | |
| 476 | static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL; |
| 477 | |
| 478 | GdkFont *GtkGetDefaultGuiFont() |
| 479 | { |
| 480 | if (!g_systemDefaultGuiFont) |
| 481 | { |
| 482 | GtkWidget *widget = gtk_button_new(); |
| 483 | GtkStyle *def = gtk_rc_get_style( widget ); |
| 484 | if (def) |
| 485 | { |
| 486 | g_systemDefaultGuiFont = gdk_font_ref( def->font ); |
| 487 | } |
| 488 | else |
| 489 | { |
| 490 | def = gtk_widget_get_default_style(); |
| 491 | if (def) |
| 492 | g_systemDefaultGuiFont = gdk_font_ref( def->font ); |
| 493 | } |
| 494 | gtk_widget_destroy( widget ); |
| 495 | } |
| 496 | else |
| 497 | { |
| 498 | // already have it, but ref it once more before returning |
| 499 | gdk_font_ref(g_systemDefaultGuiFont); |
| 500 | } |
| 501 | |
| 502 | return g_systemDefaultGuiFont; |
| 503 | } |
| 504 | |
| 505 | GdkFont *wxFont::GetInternalFont( float scale ) const |
| 506 | { |
| 507 | if (!Ok()) |
| 508 | { |
| 509 | wxFAIL_MSG( wxT("invalid font") ); |
| 510 | |
| 511 | return (GdkFont*) NULL; |
| 512 | } |
| 513 | |
| 514 | long int_scale = long(scale * 100.0 + 0.5); /* key for fontlist */ |
| 515 | int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100); |
| 516 | GdkFont *font = (GdkFont *) NULL; |
| 517 | |
| 518 | wxNode *node = M_FONTDATA->m_scaled_xfonts.Find(int_scale); |
| 519 | if (node) |
| 520 | { |
| 521 | font = (GdkFont*)node->Data(); |
| 522 | } |
| 523 | else |
| 524 | { |
| 525 | if (*this == wxSystemSettings::GetSystemFont( wxSYS_DEFAULT_GUI_FONT)) |
| 526 | { |
| 527 | font = GtkGetDefaultGuiFont(); |
| 528 | } |
| 529 | if (!font) |
| 530 | { |
| 531 | font = wxLoadQueryNearestFont( point_scale, |
| 532 | M_FONTDATA->m_family, |
| 533 | M_FONTDATA->m_style, |
| 534 | M_FONTDATA->m_weight, |
| 535 | M_FONTDATA->m_underlined, |
| 536 | M_FONTDATA->m_faceName, |
| 537 | M_FONTDATA->m_encoding, |
| 538 | &M_FONTDATA->m_nativeFontInfo.xFontName ); |
| 539 | } |
| 540 | |
| 541 | M_FONTDATA->m_scaled_xfonts.Append( int_scale, (wxObject*)font ); |
| 542 | } |
| 543 | |
| 544 | // it's quite useless to make it a wxCHECK because we're going to crash |
| 545 | // anyhow... |
| 546 | wxASSERT_MSG( font, wxT("could not load any font?") ); |
| 547 | |
| 548 | return font; |
| 549 | } |
| 550 | |