| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: winpars.cpp |
| 3 | // Purpose: wxHtmlParser class (generic parser) |
| 4 | // Author: Vaclav Slavik |
| 5 | // RCS-ID: $Id$ |
| 6 | // Copyright: (c) 1999 Vaclav Slavik |
| 7 | // Licence: wxWindows Licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | |
| 11 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 12 | #pragma implementation "winpars.h" |
| 13 | #endif |
| 14 | |
| 15 | #include "wx/wxprec.h" |
| 16 | |
| 17 | #include "wx/defs.h" |
| 18 | #if wxUSE_HTML && wxUSE_STREAMS |
| 19 | |
| 20 | #ifdef __BORLANDC__ |
| 21 | #pragma hdrstop |
| 22 | #endif |
| 23 | |
| 24 | #ifndef WXPRECOMP |
| 25 | #include "wx/intl.h" |
| 26 | #include "wx/dc.h" |
| 27 | #endif |
| 28 | |
| 29 | #include "wx/html/htmldefs.h" |
| 30 | #include "wx/html/winpars.h" |
| 31 | #include "wx/html/htmlwin.h" |
| 32 | #include "wx/fontmap.h" |
| 33 | #include "wx/log.h" |
| 34 | #include "wx/settings.h" |
| 35 | |
| 36 | |
| 37 | //----------------------------------------------------------------------------- |
| 38 | // wxHtmlWinParser |
| 39 | //----------------------------------------------------------------------------- |
| 40 | |
| 41 | IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinParser, wxHtmlParser) |
| 42 | |
| 43 | wxList wxHtmlWinParser::m_Modules; |
| 44 | |
| 45 | wxHtmlWinParser::wxHtmlWinParser(wxHtmlWindow *wnd) : wxHtmlParser() |
| 46 | { |
| 47 | m_tmpStrBuf = NULL; |
| 48 | m_tmpStrBufSize = 0; |
| 49 | m_Window = wnd; |
| 50 | m_Container = NULL; |
| 51 | m_DC = NULL; |
| 52 | m_CharHeight = m_CharWidth = 0; |
| 53 | m_UseLink = FALSE; |
| 54 | #if !wxUSE_UNICODE |
| 55 | m_EncConv = NULL; |
| 56 | m_InputEnc = wxFONTENCODING_ISO8859_1; |
| 57 | m_OutputEnc = wxFONTENCODING_DEFAULT; |
| 58 | #endif |
| 59 | m_lastWordCell = NULL; |
| 60 | |
| 61 | { |
| 62 | int i, j, k, l, m; |
| 63 | for (i = 0; i < 2; i++) |
| 64 | for (j = 0; j < 2; j++) |
| 65 | for (k = 0; k < 2; k++) |
| 66 | for (l = 0; l < 2; l++) |
| 67 | for (m = 0; m < 7; m++) |
| 68 | { |
| 69 | m_FontsTable[i][j][k][l][m] = NULL; |
| 70 | m_FontsFacesTable[i][j][k][l][m] = wxEmptyString; |
| 71 | #if !wxUSE_UNICODE |
| 72 | m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT; |
| 73 | #endif |
| 74 | } |
| 75 | |
| 76 | SetFonts(wxEmptyString, wxEmptyString, NULL); |
| 77 | } |
| 78 | |
| 79 | // fill in wxHtmlParser's tables: |
| 80 | wxList::compatibility_iterator node = m_Modules.GetFirst(); |
| 81 | while (node) |
| 82 | { |
| 83 | wxHtmlTagsModule *mod = (wxHtmlTagsModule*) node->GetData(); |
| 84 | mod->FillHandlersTable(this); |
| 85 | node = node->GetNext(); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | wxHtmlWinParser::~wxHtmlWinParser() |
| 90 | { |
| 91 | int i, j, k, l, m; |
| 92 | |
| 93 | for (i = 0; i < 2; i++) |
| 94 | for (j = 0; j < 2; j++) |
| 95 | for (k = 0; k < 2; k++) |
| 96 | for (l = 0; l < 2; l++) |
| 97 | for (m = 0; m < 7; m++) |
| 98 | { |
| 99 | if (m_FontsTable[i][j][k][l][m] != NULL) |
| 100 | delete m_FontsTable[i][j][k][l][m]; |
| 101 | } |
| 102 | #if !wxUSE_UNICODE |
| 103 | delete m_EncConv; |
| 104 | #endif |
| 105 | delete[] m_tmpStrBuf; |
| 106 | } |
| 107 | |
| 108 | void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module) |
| 109 | { |
| 110 | m_Modules.Append(module); |
| 111 | } |
| 112 | |
| 113 | void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module) |
| 114 | { |
| 115 | m_Modules.DeleteObject(module); |
| 116 | } |
| 117 | |
| 118 | void wxHtmlWinParser::SetFonts(wxString normal_face, wxString fixed_face, |
| 119 | const int *sizes) |
| 120 | { |
| 121 | static int default_sizes[7] = |
| 122 | { |
| 123 | wxHTML_FONT_SIZE_1, |
| 124 | wxHTML_FONT_SIZE_2, |
| 125 | wxHTML_FONT_SIZE_3, |
| 126 | wxHTML_FONT_SIZE_4, |
| 127 | wxHTML_FONT_SIZE_5, |
| 128 | wxHTML_FONT_SIZE_6, |
| 129 | wxHTML_FONT_SIZE_7 |
| 130 | }; |
| 131 | |
| 132 | if (sizes == NULL) sizes = default_sizes; |
| 133 | |
| 134 | int i, j, k, l, m; |
| 135 | |
| 136 | for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i]; |
| 137 | m_FontFaceFixed = fixed_face; |
| 138 | m_FontFaceNormal = normal_face; |
| 139 | |
| 140 | #if !wxUSE_UNICODE |
| 141 | SetInputEncoding(m_InputEnc); |
| 142 | #endif |
| 143 | |
| 144 | for (i = 0; i < 2; i++) |
| 145 | for (j = 0; j < 2; j++) |
| 146 | for (k = 0; k < 2; k++) |
| 147 | for (l = 0; l < 2; l++) |
| 148 | for (m = 0; m < 7; m++) { |
| 149 | if (m_FontsTable[i][j][k][l][m] != NULL) |
| 150 | { |
| 151 | delete m_FontsTable[i][j][k][l][m]; |
| 152 | m_FontsTable[i][j][k][l][m] = NULL; |
| 153 | } |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | void wxHtmlWinParser::InitParser(const wxString& source) |
| 158 | { |
| 159 | wxHtmlParser::InitParser(source); |
| 160 | wxASSERT_MSG(m_DC != NULL, wxT("no DC assigned to wxHtmlWinParser!!")); |
| 161 | |
| 162 | m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE; |
| 163 | m_FontSize = 3; //default one |
| 164 | CreateCurrentFont(); // we're selecting default font into |
| 165 | m_DC->GetTextExtent( wxT("H"), &m_CharWidth, &m_CharHeight); |
| 166 | /* NOTE : we're not using GetCharWidth/Height() because |
| 167 | of differences under X and win |
| 168 | */ |
| 169 | |
| 170 | m_UseLink = FALSE; |
| 171 | m_Link = wxHtmlLinkInfo( wxT(""), wxT("") ); |
| 172 | m_LinkColor.Set(0, 0, 0xFF); |
| 173 | m_ActualColor.Set(0, 0, 0); |
| 174 | m_Align = wxHTML_ALIGN_LEFT; |
| 175 | m_tmpLastWasSpace = FALSE; |
| 176 | m_lastWordCell = NULL; |
| 177 | |
| 178 | OpenContainer(); |
| 179 | OpenContainer(); |
| 180 | |
| 181 | #if !wxUSE_UNICODE |
| 182 | wxString charset = ExtractCharsetInformation(source); |
| 183 | if (!charset.empty()) |
| 184 | { |
| 185 | wxFontEncoding enc = wxFontMapper::Get()->CharsetToEncoding(charset); |
| 186 | if (enc != wxFONTENCODING_SYSTEM) |
| 187 | SetInputEncoding(enc); |
| 188 | } |
| 189 | #endif |
| 190 | |
| 191 | m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor)); |
| 192 | wxColour windowColour = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW) ; |
| 193 | m_Container->InsertCell( |
| 194 | new wxHtmlColourCell(GetWindow() ? |
| 195 | GetWindow()->GetBackgroundColour() : |
| 196 | windowColour, |
| 197 | wxHTML_CLR_BACKGROUND)); |
| 198 | m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont())); |
| 199 | } |
| 200 | |
| 201 | void wxHtmlWinParser::DoneParser() |
| 202 | { |
| 203 | m_Container = NULL; |
| 204 | #if !wxUSE_UNICODE |
| 205 | SetInputEncoding(wxFONTENCODING_ISO8859_1); // for next call |
| 206 | #endif |
| 207 | wxHtmlParser::DoneParser(); |
| 208 | } |
| 209 | |
| 210 | wxObject* wxHtmlWinParser::GetProduct() |
| 211 | { |
| 212 | wxHtmlContainerCell *top; |
| 213 | |
| 214 | CloseContainer(); |
| 215 | OpenContainer(); |
| 216 | |
| 217 | top = m_Container; |
| 218 | while (top->GetParent()) top = top->GetParent(); |
| 219 | top->RemoveExtraSpacing(true, true); |
| 220 | |
| 221 | return top; |
| 222 | } |
| 223 | |
| 224 | wxFSFile *wxHtmlWinParser::OpenURL(wxHtmlURLType type, |
| 225 | const wxString& url) const |
| 226 | { |
| 227 | // FIXME - normalize the URL to full path before passing to |
| 228 | // OnOpeningURL!! |
| 229 | if ( m_Window ) |
| 230 | { |
| 231 | wxString myurl(url); |
| 232 | wxHtmlOpeningStatus status; |
| 233 | for (;;) |
| 234 | { |
| 235 | wxString redirect; |
| 236 | status = m_Window->OnOpeningURL(type, myurl, &redirect); |
| 237 | if ( status != wxHTML_REDIRECT ) |
| 238 | break; |
| 239 | |
| 240 | myurl = redirect; |
| 241 | } |
| 242 | |
| 243 | if ( status == wxHTML_BLOCK ) |
| 244 | return NULL; |
| 245 | |
| 246 | return GetFS()->OpenFile(myurl); |
| 247 | } |
| 248 | |
| 249 | return wxHtmlParser::OpenURL(type, url); |
| 250 | } |
| 251 | |
| 252 | void wxHtmlWinParser::AddText(const wxChar* txt) |
| 253 | { |
| 254 | wxHtmlCell *c; |
| 255 | size_t i = 0, |
| 256 | x, |
| 257 | lng = wxStrlen(txt); |
| 258 | register wxChar d; |
| 259 | int templen = 0; |
| 260 | wxChar nbsp = GetEntitiesParser()->GetCharForCode(160 /* nbsp */); |
| 261 | |
| 262 | if (lng+1 > m_tmpStrBufSize) |
| 263 | { |
| 264 | delete[] m_tmpStrBuf; |
| 265 | m_tmpStrBuf = new wxChar[lng+1]; |
| 266 | m_tmpStrBufSize = lng+1; |
| 267 | } |
| 268 | wxChar *temp = m_tmpStrBuf; |
| 269 | |
| 270 | if (m_tmpLastWasSpace) |
| 271 | { |
| 272 | while ((i < lng) && |
| 273 | ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || (txt[i] == wxT(' ')) || |
| 274 | (txt[i] == wxT('\t')))) i++; |
| 275 | } |
| 276 | |
| 277 | while (i < lng) |
| 278 | { |
| 279 | x = 0; |
| 280 | d = temp[templen++] = txt[i]; |
| 281 | if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t'))) |
| 282 | { |
| 283 | i++, x++; |
| 284 | while ((i < lng) && ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || |
| 285 | (txt[i] == wxT(' ')) || (txt[i] == wxT('\t')))) i++, x++; |
| 286 | } |
| 287 | else i++; |
| 288 | |
| 289 | if (x) |
| 290 | { |
| 291 | temp[templen-1] = wxT(' '); |
| 292 | temp[templen] = 0; |
| 293 | templen = 0; |
| 294 | #if !wxUSE_UNICODE |
| 295 | if (m_EncConv) |
| 296 | m_EncConv->Convert(temp); |
| 297 | #endif |
| 298 | size_t len = wxStrlen(temp); |
| 299 | for (size_t j = 0; j < len; j++) |
| 300 | if (temp[j] == nbsp) |
| 301 | temp[j] = wxT(' '); |
| 302 | c = new wxHtmlWordCell(temp, *(GetDC())); |
| 303 | if (m_UseLink) |
| 304 | c->SetLink(m_Link); |
| 305 | m_Container->InsertCell(c); |
| 306 | ((wxHtmlWordCell*)c)->SetPreviousWord(m_lastWordCell); |
| 307 | m_lastWordCell = (wxHtmlWordCell*)c; |
| 308 | m_tmpLastWasSpace = TRUE; |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | if (templen && (templen > 1 || temp[0] != wxT(' '))) |
| 313 | { |
| 314 | temp[templen] = 0; |
| 315 | #if !wxUSE_UNICODE |
| 316 | if (m_EncConv) |
| 317 | m_EncConv->Convert(temp); |
| 318 | #endif |
| 319 | size_t len = wxStrlen(temp); |
| 320 | for (size_t j = 0; j < len; j++) |
| 321 | if (temp[j] == nbsp) |
| 322 | temp[j] = wxT(' '); |
| 323 | c = new wxHtmlWordCell(temp, *(GetDC())); |
| 324 | if (m_UseLink) |
| 325 | c->SetLink(m_Link); |
| 326 | m_Container->InsertCell(c); |
| 327 | ((wxHtmlWordCell*)c)->SetPreviousWord(m_lastWordCell); |
| 328 | m_lastWordCell = (wxHtmlWordCell*)c; |
| 329 | m_tmpLastWasSpace = FALSE; |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | |
| 334 | |
| 335 | wxHtmlContainerCell* wxHtmlWinParser::OpenContainer() |
| 336 | { |
| 337 | m_Container = new wxHtmlContainerCell(m_Container); |
| 338 | m_Container->SetAlignHor(m_Align); |
| 339 | m_tmpLastWasSpace = TRUE; |
| 340 | /* to avoid space being first character in paragraph */ |
| 341 | return m_Container; |
| 342 | } |
| 343 | |
| 344 | |
| 345 | |
| 346 | wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c) |
| 347 | { |
| 348 | m_tmpLastWasSpace = TRUE; |
| 349 | /* to avoid space being first character in paragraph */ |
| 350 | return m_Container = c; |
| 351 | } |
| 352 | |
| 353 | |
| 354 | |
| 355 | wxHtmlContainerCell* wxHtmlWinParser::CloseContainer() |
| 356 | { |
| 357 | m_Container = m_Container->GetParent(); |
| 358 | return m_Container; |
| 359 | } |
| 360 | |
| 361 | |
| 362 | void wxHtmlWinParser::SetFontSize(int s) |
| 363 | { |
| 364 | if (s < 1) s = 1; |
| 365 | else if (s > 7) s = 7; |
| 366 | m_FontSize = s; |
| 367 | } |
| 368 | |
| 369 | |
| 370 | |
| 371 | wxFont* wxHtmlWinParser::CreateCurrentFont() |
| 372 | { |
| 373 | int fb = GetFontBold(), |
| 374 | fi = GetFontItalic(), |
| 375 | fu = GetFontUnderlined(), |
| 376 | ff = GetFontFixed(), |
| 377 | fs = GetFontSize() - 1 /*remap from <1;7> to <0;6>*/ ; |
| 378 | |
| 379 | wxString face = ff ? m_FontFaceFixed : m_FontFaceNormal; |
| 380 | wxString *faceptr = &(m_FontsFacesTable[fb][fi][fu][ff][fs]); |
| 381 | wxFont **fontptr = &(m_FontsTable[fb][fi][fu][ff][fs]); |
| 382 | #if !wxUSE_UNICODE |
| 383 | wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]); |
| 384 | #endif |
| 385 | |
| 386 | if (*fontptr != NULL && (*faceptr != face |
| 387 | #if !wxUSE_UNICODE |
| 388 | || *encptr != m_OutputEnc |
| 389 | #endif |
| 390 | )) |
| 391 | { |
| 392 | delete *fontptr; |
| 393 | *fontptr = NULL; |
| 394 | } |
| 395 | |
| 396 | if (*fontptr == NULL) |
| 397 | { |
| 398 | *faceptr = face; |
| 399 | *fontptr = new wxFont( |
| 400 | (int) (m_FontsSizes[fs] * m_PixelScale), |
| 401 | ff ? wxMODERN : wxSWISS, |
| 402 | fi ? wxITALIC : wxNORMAL, |
| 403 | fb ? wxBOLD : wxNORMAL, |
| 404 | fu ? TRUE : FALSE, face |
| 405 | #if wxUSE_UNICODE |
| 406 | ); |
| 407 | #else |
| 408 | , m_OutputEnc); |
| 409 | *encptr = m_OutputEnc; |
| 410 | #endif |
| 411 | } |
| 412 | m_DC->SetFont(**fontptr); |
| 413 | return (*fontptr); |
| 414 | } |
| 415 | |
| 416 | |
| 417 | |
| 418 | void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link) |
| 419 | { |
| 420 | m_Link = link; |
| 421 | m_UseLink = (link.GetHref() != wxEmptyString); |
| 422 | } |
| 423 | |
| 424 | |
| 425 | void wxHtmlWinParser::SetFontFace(const wxString& face) |
| 426 | { |
| 427 | if (GetFontFixed()) m_FontFaceFixed = face; |
| 428 | else m_FontFaceNormal = face; |
| 429 | |
| 430 | #if !wxUSE_UNICODE |
| 431 | if (m_InputEnc != wxFONTENCODING_DEFAULT) |
| 432 | SetInputEncoding(m_InputEnc); |
| 433 | #endif |
| 434 | } |
| 435 | |
| 436 | |
| 437 | |
| 438 | #if !wxUSE_UNICODE |
| 439 | void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc) |
| 440 | { |
| 441 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; |
| 442 | if (m_EncConv) |
| 443 | { |
| 444 | delete m_EncConv; |
| 445 | m_EncConv = NULL; |
| 446 | } |
| 447 | |
| 448 | if (enc == wxFONTENCODING_DEFAULT) return; |
| 449 | |
| 450 | wxFontEncoding altfix, altnorm; |
| 451 | bool availfix, availnorm; |
| 452 | |
| 453 | // exact match? |
| 454 | availnorm = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceNormal); |
| 455 | availfix = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceFixed); |
| 456 | if (availnorm && availfix) |
| 457 | m_OutputEnc = enc; |
| 458 | |
| 459 | // alternatives? |
| 460 | else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE) && |
| 461 | wxFontMapper::Get()->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, FALSE) && |
| 462 | altnorm == altfix) |
| 463 | m_OutputEnc = altnorm; |
| 464 | |
| 465 | // at least normal face? |
| 466 | else if (availnorm) |
| 467 | m_OutputEnc = enc; |
| 468 | else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE)) |
| 469 | m_OutputEnc = altnorm; |
| 470 | |
| 471 | else |
| 472 | { |
| 473 | #ifndef __WXMAC__ |
| 474 | // okay, let convert to ISO_8859-1, available always |
| 475 | m_OutputEnc = wxFONTENCODING_DEFAULT; |
| 476 | #else |
| 477 | m_OutputEnc = wxLocale::GetSystemEncoding() ; |
| 478 | #endif |
| 479 | } |
| 480 | |
| 481 | m_InputEnc = enc; |
| 482 | if (m_OutputEnc == wxFONTENCODING_DEFAULT) |
| 483 | GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM); |
| 484 | else |
| 485 | GetEntitiesParser()->SetEncoding(m_OutputEnc); |
| 486 | |
| 487 | if (m_InputEnc == m_OutputEnc) return; |
| 488 | |
| 489 | m_EncConv = new wxEncodingConverter(); |
| 490 | if (!m_EncConv->Init(m_InputEnc, |
| 491 | (m_OutputEnc == wxFONTENCODING_DEFAULT) ? |
| 492 | wxFONTENCODING_ISO8859_1 : m_OutputEnc, |
| 493 | wxCONVERT_SUBSTITUTE)) |
| 494 | { // total failture :-( |
| 495 | wxLogError(_("Failed to display HTML document in %s encoding"), |
| 496 | wxFontMapper::GetEncodingName(enc).c_str()); |
| 497 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; |
| 498 | delete m_EncConv; |
| 499 | m_EncConv = NULL; |
| 500 | } |
| 501 | } |
| 502 | #endif |
| 503 | |
| 504 | |
| 505 | |
| 506 | |
| 507 | //----------------------------------------------------------------------------- |
| 508 | // wxHtmlWinTagHandler |
| 509 | //----------------------------------------------------------------------------- |
| 510 | |
| 511 | IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler) |
| 512 | |
| 513 | //----------------------------------------------------------------------------- |
| 514 | // wxHtmlTagsModule |
| 515 | //----------------------------------------------------------------------------- |
| 516 | |
| 517 | // NB: This is *NOT* winpars.cpp's initialization and shutdown code!! |
| 518 | // This module is an ancestor for tag handlers modules defined |
| 519 | // in m_*.cpp files with TAGS_MODULE_BEGIN...TAGS_MODULE_END construct. |
| 520 | // |
| 521 | // Do not add any winpars.cpp shutdown or initialization code to it, |
| 522 | // create a new module instead! |
| 523 | |
| 524 | IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule) |
| 525 | |
| 526 | bool wxHtmlTagsModule::OnInit() |
| 527 | { |
| 528 | wxHtmlWinParser::AddModule(this); |
| 529 | return TRUE; |
| 530 | } |
| 531 | |
| 532 | void wxHtmlTagsModule::OnExit() |
| 533 | { |
| 534 | wxHtmlWinParser::RemoveModule(this); |
| 535 | } |
| 536 | |
| 537 | #endif |
| 538 | |