src/html/winpars.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/html/winpars.cpp
   3 // Purpose:     wxHtmlParser class (generic parser)
   4 // Author:      Vaclav Slavik
   5 // Copyright:   (c) 1999 Vaclav Slavik
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 #include "wx/wxprec.h"
  10
  11 #ifdef __BORLANDC__
  12     #pragma hdrstop
  13 #endif
  14
  15 #if wxUSE_HTML && wxUSE_STREAMS
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/intl.h"
  19     #include "wx/dc.h"
  20     #include "wx/log.h"
  21     #include "wx/settings.h"
  22 #endif
  23
  24 #include "wx/html/htmldefs.h"
  25 #include "wx/html/winpars.h"
  26 #include "wx/html/htmlwin.h"
  27 #include "wx/html/styleparams.h"
  28 #include "wx/fontmap.h"
  29 #include "wx/uri.h"
  30
  31
  32 //-----------------------------------------------------------------------------
  33 // wxHtmlWinParser
  34 //-----------------------------------------------------------------------------
  35
  36 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinParser, wxHtmlParser)
  37
  38 wxList wxHtmlWinParser::m_Modules;
  39
  40 wxHtmlWinParser::wxHtmlWinParser(wxHtmlWindowInterface *wndIface)
  41 {
  42     m_tmpStrBuf = NULL;
  43     m_tmpStrBufSize = 0;
  44     m_windowInterface = wndIface;
  45     m_Container = NULL;
  46     m_DC = NULL;
  47     m_CharHeight = m_CharWidth = 0;
  48     m_UseLink = false;
  49 #if !wxUSE_UNICODE
  50     m_nbsp = 0;
  51     m_EncConv = NULL;
  52     m_InputEnc = wxFONTENCODING_ISO8859_1;
  53     m_OutputEnc = wxFONTENCODING_DEFAULT;
  54 #endif
  55     m_whitespaceMode = Whitespace_Normal;
  56     m_lastWordCell = NULL;
  57     m_posColumn = 0;
  58
  59     {
  60         int i, j, k, l, m;
  61         for (i = 0; i < 2; i++)
  62             for (j = 0; j < 2; j++)
  63                 for (k = 0; k < 2; k++)
  64                     for (l = 0; l < 2; l++)
  65                         for (m = 0; m < 7; m++)
  66                         {
  67                             m_FontsTable[i][j][k][l][m] = NULL;
  68                             m_FontsFacesTable[i][j][k][l][m] = wxEmptyString;
  69 #if !wxUSE_UNICODE
  70                             m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT;
  71 #endif
  72                         }
  73
  74         SetFonts(wxEmptyString, wxEmptyString, NULL);
  75     }
  76
  77     // fill in wxHtmlParser's tables:
  78     wxList::compatibility_iterator node = m_Modules.GetFirst();
  79     while (node)
  80     {
  81         wxHtmlTagsModule *mod = (wxHtmlTagsModule*) node->GetData();
  82         mod->FillHandlersTable(this);
  83         node = node->GetNext();
  84     }
  85 }
  86
  87 wxHtmlWinParser::~wxHtmlWinParser()
  88 {
  89     int i, j, k, l, m;
  90
  91     for (i = 0; i < 2; i++)
  92         for (j = 0; j < 2; j++)
  93             for (k = 0; k < 2; k++)
  94                 for (l = 0; l < 2; l++)
  95                     for (m = 0; m < 7; m++)
  96                     {
  97                         if (m_FontsTable[i][j][k][l][m] != NULL)
  98                             delete m_FontsTable[i][j][k][l][m];
  99                     }
 100 #if !wxUSE_UNICODE
 101     delete m_EncConv;
 102 #endif
 103     delete[] m_tmpStrBuf;
 104 }
 105
 106 void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module)
 107 {
 108     m_Modules.Append(module);
 109 }
 110
 111 void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module)
 112 {
 113     m_Modules.DeleteObject(module);
 114 }
 115
 116 // build all HTML font sizes (1..7) from the given base size
 117 static void wxBuildFontSizes(int *sizes, int size)
 118 {
 119     // using a fixed factor (1.2, from CSS2) is a bad idea as explained at
 120     // http://www.w3.org/TR/CSS21/fonts.html#font-size-props but this is by far
 121     // simplest thing to do so still do it like this for now
 122     sizes[0] = int(size * 0.75); // exception to 1.2 rule, otherwise too small
 123     sizes[1] = int(size * 0.83);
 124     sizes[2] = size;
 125     sizes[3] = int(size * 1.2);
 126     sizes[4] = int(size * 1.44);
 127     sizes[5] = int(size * 1.73);
 128     sizes[6] = int(size * 2);
 129 }
 130
 131 static int wxGetDefaultHTMLFontSize()
 132 {
 133     // base the default font size on the size of the default system font but
 134     // also ensure that we have a font of reasonable size, otherwise small HTML
 135     // fonts are unreadable
 136     int size = wxNORMAL_FONT->GetPointSize();
 137     if ( size < 10 )
 138         size = 10;
 139     return size;
 140 }
 141
 142 void wxHtmlWinParser::SetFonts(const wxString& normal_face,
 143                                const wxString& fixed_face,
 144                                const int *sizes)
 145 {
 146     static int default_sizes[7] = { 0 };
 147     if ( !sizes )
 148     {
 149         if ( !default_sizes[0] )
 150             wxBuildFontSizes(default_sizes, wxGetDefaultHTMLFontSize());
 151
 152         sizes = default_sizes;
 153     }
 154
 155     int i, j, k, l, m;
 156
 157     for (i = 0; i < 7; i++)
 158         m_FontsSizes[i] = sizes[i];
 159
 160     m_FontFaceFixed = fixed_face;
 161     m_FontFaceNormal = normal_face;
 162
 163 #if !wxUSE_UNICODE
 164     SetInputEncoding(m_InputEnc);
 165 #endif
 166
 167     for (i = 0; i < 2; i++)
 168         for (j = 0; j < 2; j++)
 169             for (k = 0; k < 2; k++)
 170                 for (l = 0; l < 2; l++)
 171                     for (m = 0; m < 7; m++) {
 172                         if (m_FontsTable[i][j][k][l][m] != NULL)
 173                         {
 174                             delete m_FontsTable[i][j][k][l][m];
 175                             m_FontsTable[i][j][k][l][m] = NULL;
 176                         }
 177                     }
 178 }
 179
 180 void wxHtmlWinParser::SetStandardFonts(int size,
 181                                        const wxString& normal_face,
 182                                        const wxString& fixed_face)
 183 {
 184     if (size == -1)
 185         size = wxGetDefaultHTMLFontSize();
 186
 187     int f_sizes[7];
 188     wxBuildFontSizes(f_sizes, size);
 189
 190     wxString normal = normal_face;
 191     if ( normal.empty() )
 192         normal = wxNORMAL_FONT->GetFaceName();
 193
 194     SetFonts(normal, fixed_face, f_sizes);
 195 }
 196
 197 void wxHtmlWinParser::InitParser(const wxString& source)
 198 {
 199     wxHtmlParser::InitParser(source);
 200     wxASSERT_MSG(m_DC != NULL, wxT("no DC assigned to wxHtmlWinParser!!"));
 201
 202     m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE;
 203     m_FontSize = 3; //default one
 204     CreateCurrentFont();           // we're selecting default font into
 205
 206     // we're not using GetCharWidth/Height() because of
 207     // differences under X and win
 208     wxCoord w,h;
 209     m_DC->GetTextExtent( wxT("H"), &w, &h);
 210     m_CharWidth = w;
 211     m_CharHeight = h;
 212
 213     m_UseLink = false;
 214     m_Link = wxHtmlLinkInfo( wxEmptyString );
 215     m_LinkColor.Set(0, 0, 0xFF);
 216     m_ActualColor.Set(0, 0, 0);
 217     const wxColour windowColour = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW) ;
 218     m_ActualBackgroundColor = m_windowInterface
 219                             ? m_windowInterface->GetHTMLBackgroundColour()
 220                             : windowColour;
 221     m_ActualBackgroundMode = wxTRANSPARENT;
 222     m_Align = wxHTML_ALIGN_LEFT;
 223     m_ScriptMode = wxHTML_SCRIPT_NORMAL;
 224     m_ScriptBaseline = 0;
 225     m_tmpLastWasSpace = false;
 226     m_lastWordCell = NULL;
 227
 228     // open the toplevel container that contains everything else and that
 229     // is never closed (this makes parser's life easier):
 230     OpenContainer();
 231
 232     // then open the first container into which page's content will go:
 233     OpenContainer();
 234
 235 #if !wxUSE_UNICODE
 236     wxString charset = ExtractCharsetInformation(source);
 237     if (!charset.empty())
 238     {
 239         wxFontEncoding enc = wxFontMapper::Get()->CharsetToEncoding(charset);
 240         if (enc != wxFONTENCODING_SYSTEM)
 241           SetInputEncoding(enc);
 242     }
 243 #endif
 244
 245     m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor));
 246
 247     m_Container->InsertCell
 248                  (
 249                    new wxHtmlColourCell
 250                        (
 251                          m_ActualBackgroundColor,
 252                          m_ActualBackgroundMode == wxTRANSPARENT ? wxHTML_CLR_TRANSPARENT_BACKGROUND : wxHTML_CLR_BACKGROUND
 253                        )
 254                   );
 255
 256     m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont()));
 257 }
 258
 259 void wxHtmlWinParser::DoneParser()
 260 {
 261     m_Container = NULL;
 262 #if !wxUSE_UNICODE
 263     SetInputEncoding(wxFONTENCODING_ISO8859_1); // for next call
 264 #endif
 265     wxHtmlParser::DoneParser();
 266 }
 267
 268 #if WXWIN_COMPATIBILITY_2_6
 269 wxHtmlWindow *wxHtmlWinParser::GetWindow()
 270 {
 271     if (!m_windowInterface)
 272         return NULL;
 273     return wxDynamicCast(m_windowInterface->GetHTMLWindow(), wxHtmlWindow);
 274 }
 275 #endif
 276
 277 wxObject* wxHtmlWinParser::GetProduct()
 278 {
 279     wxHtmlContainerCell *top;
 280
 281     CloseContainer();
 282     OpenContainer();
 283
 284     top = m_Container;
 285     while (top->GetParent()) top = top->GetParent();
 286     top->RemoveExtraSpacing(true, true);
 287
 288     return top;
 289 }
 290
 291 wxFSFile *wxHtmlWinParser::OpenURL(wxHtmlURLType type,
 292                                    const wxString& url) const
 293 {
 294     if ( !m_windowInterface )
 295         return wxHtmlParser::OpenURL(type, url);
 296
 297     wxString myurl(url);
 298     wxHtmlOpeningStatus status;
 299     for (;;)
 300     {
 301         wxString myfullurl(myurl);
 302
 303         // consider url as absolute path first
 304         wxURI current(myurl);
 305         myfullurl = current.BuildUnescapedURI();
 306
 307         // if not absolute then ...
 308         if( current.IsReference() )
 309         {
 310             wxString basepath = GetFS()->GetPath();
 311             wxURI base(basepath);
 312
 313             // ... try to apply base path if valid ...
 314             if( !base.IsReference() )
 315             {
 316                 wxURI path(myfullurl);
 317                 path.Resolve( base );
 318                 myfullurl = path.BuildUnescapedURI();
 319             }
 320             else
 321             {
 322                 // ... or force such addition if not included already
 323                 if( !current.GetPath().Contains(base.GetPath()) )
 324                 {
 325                     basepath += myurl;
 326                     wxURI connected( basepath );
 327                     myfullurl = connected.BuildUnescapedURI();
 328                 }
 329             }
 330         }
 331
 332         wxString redirect;
 333         status = m_windowInterface->OnHTMLOpeningURL(type, myfullurl, &redirect);
 334         if ( status != wxHTML_REDIRECT )
 335             break;
 336
 337         myurl = redirect;
 338     }
 339
 340     if ( status == wxHTML_BLOCK )
 341         return NULL;
 342
 343     int flags = wxFS_READ;
 344     if (type == wxHTML_URL_IMAGE)
 345         flags |= wxFS_SEEKABLE;
 346
 347     return GetFS()->OpenFile(myurl, flags);
 348 }
 349
 350 #define NBSP_UNICODE_VALUE  (wxChar(160))
 351 #if !wxUSE_UNICODE
 352     #define CUR_NBSP_VALUE m_nbsp
 353 #else
 354     #define CUR_NBSP_VALUE NBSP_UNICODE_VALUE
 355 #endif
 356
 357 void wxHtmlWinParser::AddText(const wxString& txt)
 358 {
 359 #if !wxUSE_UNICODE
 360     if ( m_nbsp == 0 )
 361         m_nbsp = GetEntitiesParser()->GetCharForCode(NBSP_UNICODE_VALUE);
 362 #endif
 363
 364     if ( m_whitespaceMode == Whitespace_Normal )
 365     {
 366         int templen = 0;
 367
 368         size_t lng = txt.length();
 369         if (lng+1 > m_tmpStrBufSize)
 370         {
 371             delete[] m_tmpStrBuf;
 372             m_tmpStrBuf = new wxChar[lng+1];
 373             m_tmpStrBufSize = lng+1;
 374         }
 375         wxChar *temp = m_tmpStrBuf;
 376
 377         wxString::const_iterator i = txt.begin();
 378         const wxString::const_iterator end = txt.end();
 379
 380         if (m_tmpLastWasSpace)
 381         {
 382             while ( (i < end) &&
 383                     (*i == wxT('\n') || *i == wxT('\r') || *i == wxT(' ') ||
 384                      *i == wxT('\t')) )
 385             {
 386                 ++i;
 387             }
 388         }
 389
 390         while (i < end)
 391         {
 392             size_t x = 0;
 393             const wxChar d = temp[templen++] = *i;
 394             if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t')))
 395             {
 396                 ++i, ++x;
 397                 while ( (i < end) &&
 398                         (*i == wxT('\n') || *i == wxT('\r') ||
 399                          *i == wxT(' ') || *i == wxT('\t')) )
 400                 {
 401                     ++i;
 402                     ++x;
 403                 }
 404             }
 405             else
 406             {
 407                 ++i;
 408             }
 409
 410             if (x)
 411             {
 412                 temp[templen-1] = wxT(' ');
 413                 FlushWordBuf(temp, templen);
 414                 m_tmpLastWasSpace = true;
 415             }
 416         }
 417
 418         if (templen && (templen > 1 || temp[0] != wxT(' ')))
 419         {
 420             FlushWordBuf(temp, templen);
 421             m_tmpLastWasSpace = false;
 422         }
 423     }
 424     else // m_whitespaceMode == Whitespace_Pre
 425     {
 426         if ( txt.find(CUR_NBSP_VALUE) != wxString::npos )
 427         {
 428             // we need to substitute spaces for &nbsp; here just like we
 429             // did in the Whitespace_Normal branch above
 430             wxString txt2(txt);
 431             txt2.Replace(CUR_NBSP_VALUE, ' ');
 432             AddPreBlock(txt2);
 433         }
 434         else
 435         {
 436             AddPreBlock(txt);
 437         }
 438
 439         // don't eat any whitespace in <pre> block
 440         m_tmpLastWasSpace = false;
 441     }
 442 }
 443
 444 void wxHtmlWinParser::FlushWordBuf(wxChar *buf, int& len)
 445 {
 446     buf[len] = 0;
 447
 448     for ( int i = 0; i < len; i++ )
 449     {
 450         if ( buf[i] == CUR_NBSP_VALUE )
 451             buf[i] = ' ';
 452     }
 453
 454 #if !wxUSE_UNICODE
 455     if (m_EncConv)
 456         m_EncConv->Convert(buf);
 457 #endif
 458
 459     AddWord(wxString(buf, len));
 460
 461     len = 0;
 462 }
 463
 464 void wxHtmlWinParser::AddWord(wxHtmlWordCell *word)
 465 {
 466     ApplyStateToCell(word);
 467
 468     m_Container->InsertCell(word);
 469     word->SetPreviousWord(m_lastWordCell);
 470     m_lastWordCell = word;
 471 }
 472
 473 void wxHtmlWinParser::AddPreBlock(const wxString& text)
 474 {
 475     if ( text.find('\t') != wxString::npos )
 476     {
 477         wxString text2;
 478         text2.reserve(text.length());
 479
 480         const wxString::const_iterator end = text.end();
 481         wxString::const_iterator copyFrom = text.begin();
 482         size_t pos = 0;
 483         int posColumn = m_posColumn;
 484         for ( wxString::const_iterator i = copyFrom; i != end; ++i, ++pos )
 485         {
 486             if ( *i == '\t' )
 487             {
 488                 if ( copyFrom != i )
 489                     text2.append(copyFrom, i);
 490
 491                 const unsigned SPACES_PER_TAB = 8;
 492                 const size_t expandTo = SPACES_PER_TAB - posColumn % SPACES_PER_TAB;
 493                 text2.append(expandTo, ' ');
 494
 495                 posColumn += expandTo;
 496                 copyFrom = i + 1;
 497             }
 498             else
 499             {
 500                 ++posColumn;
 501             }
 502         }
 503         if ( copyFrom != text.end() )
 504             text2.append(copyFrom, text.end());
 505
 506         AddWord(new wxHtmlWordWithTabsCell(text2, text, m_posColumn, *(GetDC())));
 507
 508         m_posColumn = posColumn;
 509     }
 510     else
 511     {
 512         // no special formatting needed
 513         AddWord(text);
 514         m_posColumn += text.length();
 515     }
 516 }
 517
 518
 519 wxHtmlContainerCell* wxHtmlWinParser::OpenContainer()
 520 {
 521     m_Container = new wxHtmlContainerCell(m_Container);
 522     m_Container->SetAlignHor(m_Align);
 523     m_posColumn = 0;
 524     m_tmpLastWasSpace = true;
 525         /* to avoid space being first character in paragraph */
 526     return m_Container;
 527 }
 528
 529
 530
 531 wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c)
 532 {
 533     m_tmpLastWasSpace = true;
 534         /* to avoid space being first character in paragraph */
 535     return m_Container = c;
 536 }
 537
 538
 539
 540 wxHtmlContainerCell* wxHtmlWinParser::CloseContainer()
 541 {
 542     m_Container = m_Container->GetParent();
 543     return m_Container;
 544 }
 545
 546
 547 void wxHtmlWinParser::SetFontSize(int s)
 548 {
 549     if (s < 1)
 550         s = 1;
 551     else if (s > 7)
 552         s = 7;
 553     m_FontSize = s;
 554 }
 555
 556
 557 void wxHtmlWinParser::SetDC(wxDC *dc, double pixel_scale, double font_scale)
 558 {
 559     m_DC = dc;
 560     m_PixelScale = pixel_scale;
 561     m_FontScale = font_scale;
 562 }
 563
 564 void wxHtmlWinParser::SetFontPointSize(int pt)
 565 {
 566     if (pt <= m_FontsSizes[0])
 567         m_FontSize = 1;
 568     else if (pt >= m_FontsSizes[6])
 569         m_FontSize = 7;
 570     else
 571     {
 572         // Find the font closest to the given value with a simple linear search
 573         // (binary search is not worth it here for so small number of elements)
 574         for ( int n = 0; n < 6; n++ )
 575         {
 576             if ( (pt > m_FontsSizes[n]) && (pt <= m_FontsSizes[n + 1]) )
 577             {
 578                 if ( (pt - m_FontsSizes[n]) >= (m_FontsSizes[n + 1] - pt) )
 579                 {
 580                     // The actual size is closer to the next entry than to this
 581                     // one, so use it.
 582                     n++;
 583                 }
 584
 585                 // Notice that m_FontSize starts from 1, hence +1 here.
 586                 m_FontSize = n + 1;
 587
 588                 break;
 589             }
 590         }
 591     }
 592 }
 593
 594 wxFont* wxHtmlWinParser::CreateCurrentFont()
 595 {
 596     int fb = GetFontBold(),
 597         fi = GetFontItalic(),
 598         fu = GetFontUnderlined(),
 599         ff = GetFontFixed(),
 600         fs = GetFontSize() - 1 /*remap from <1;7> to <0;6>*/ ;
 601
 602     wxString face = ff ? m_FontFaceFixed : m_FontFaceNormal;
 603     wxString *faceptr = &(m_FontsFacesTable[fb][fi][fu][ff][fs]);
 604     wxFont **fontptr = &(m_FontsTable[fb][fi][fu][ff][fs]);
 605 #if !wxUSE_UNICODE
 606     wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]);
 607 #endif
 608
 609     if (*fontptr != NULL && (*faceptr != face
 610 #if !wxUSE_UNICODE
 611                              || *encptr != m_OutputEnc
 612 #endif
 613                             ))
 614     {
 615         wxDELETE(*fontptr);
 616     }
 617
 618     if (*fontptr == NULL)
 619     {
 620         *faceptr = face;
 621         *fontptr = new wxFont(
 622                        (int) (m_FontsSizes[fs] * m_FontScale),
 623                        ff ? wxMODERN : wxSWISS,
 624                        fi ? wxITALIC : wxNORMAL,
 625                        fb ? wxBOLD : wxNORMAL,
 626                        fu ? true : false, face
 627 #if wxUSE_UNICODE
 628                        );
 629 #else
 630                        , m_OutputEnc);
 631         *encptr = m_OutputEnc;
 632 #endif
 633     }
 634     m_DC->SetFont(**fontptr);
 635     return (*fontptr);
 636 }
 637
 638
 639
 640 void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link)
 641 {
 642     m_Link = link;
 643     m_UseLink = (link.GetHref() != wxEmptyString);
 644 }
 645
 646 void wxHtmlWinParser::SetFontFace(const wxString& face)
 647 {
 648     if (GetFontFixed())
 649         m_FontFaceFixed = face;
 650     else
 651         m_FontFaceNormal = face;
 652
 653 #if !wxUSE_UNICODE
 654     if (m_InputEnc != wxFONTENCODING_DEFAULT)
 655         SetInputEncoding(m_InputEnc);
 656 #endif
 657 }
 658
 659 void wxHtmlWinParser::ApplyStateToCell(wxHtmlCell *cell)
 660 {
 661     // set the link:
 662     if (m_UseLink)
 663         cell->SetLink(GetLink());
 664
 665     // apply current script mode settings:
 666     cell->SetScriptMode(GetScriptMode(), GetScriptBaseline());
 667 }
 668
 669
 670 #if !wxUSE_UNICODE
 671 void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc)
 672 {
 673     // the character used for non-breakable space may change:
 674     m_nbsp = 0;
 675
 676     m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
 677     wxDELETE(m_EncConv);
 678
 679     if (enc == wxFONTENCODING_DEFAULT)
 680         return;
 681
 682     wxFontEncoding altfix, altnorm;
 683     bool availfix, availnorm;
 684
 685     availnorm = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceNormal);
 686     availfix = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceFixed);
 687
 688     if (availnorm && availfix)
 689     {
 690         // exact match?
 691         m_OutputEnc = enc;
 692     }
 693
 694     else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, false) &&
 695              wxFontMapper::Get()->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, false) &&
 696              altnorm == altfix)
 697     {
 698         // alternatives?
 699         m_OutputEnc = altnorm;
 700     }
 701     else if (availnorm)
 702     {
 703         // at least normal face?
 704         m_OutputEnc = enc;
 705     }
 706     else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, false))
 707     {
 708         m_OutputEnc = altnorm;
 709     }
 710     else
 711     {
 712 #ifndef __WXMAC__
 713         // okay, let's convert to ISO_8859-1, available always
 714         m_OutputEnc = wxFONTENCODING_DEFAULT;
 715 #else
 716         m_OutputEnc = wxLocale::GetSystemEncoding() ;
 717 #endif
 718     }
 719
 720     m_InputEnc = enc;
 721     if (m_OutputEnc == wxFONTENCODING_DEFAULT)
 722     {
 723         GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM);
 724     }
 725     else
 726     {
 727         GetEntitiesParser()->SetEncoding(m_OutputEnc);
 728     }
 729
 730     if (m_InputEnc == m_OutputEnc)
 731         return;
 732
 733     m_EncConv = new wxEncodingConverter();
 734     if (!m_EncConv->Init(m_InputEnc,
 735                            (m_OutputEnc == wxFONTENCODING_DEFAULT) ?
 736                                       wxFONTENCODING_ISO8859_1 : m_OutputEnc,
 737                            wxCONVERT_SUBSTITUTE))
 738     { // total failure :-(
 739         wxLogError(_("Failed to display HTML document in %s encoding"),
 740                    wxFontMapper::GetEncodingName(enc).c_str());
 741         m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
 742         wxDELETE(m_EncConv);
 743     }
 744 }
 745 #endif
 746
 747
 748
 749
 750 //-----------------------------------------------------------------------------
 751 // wxHtmlWinTagHandler
 752 //-----------------------------------------------------------------------------
 753
 754 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler)
 755
 756 void wxHtmlWinTagHandler::ApplyStyle(const wxHtmlStyleParams &styleParams)
 757 {
 758     wxString str;
 759
 760     str = styleParams.GetParam(wxS("color"));
 761     if ( !str.empty() )
 762     {
 763         wxColour clr;
 764         if ( wxHtmlTag::ParseAsColour(str, &clr) )
 765         {
 766             m_WParser->SetActualColor(clr);
 767             m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr));
 768         }
 769     }
 770
 771     str = styleParams.GetParam(wxS("background-color"));
 772     if ( !str.empty() )
 773     {
 774         wxColour clr;
 775         if ( wxHtmlTag::ParseAsColour(str, &clr) )
 776         {
 777             m_WParser->SetActualBackgroundColor(clr);
 778             m_WParser->SetActualBackgroundMode(wxSOLID);
 779             m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr, wxHTML_CLR_BACKGROUND));
 780         }
 781     }
 782
 783     str = styleParams.GetParam(wxS("font-size"));
 784     if ( !str.empty() )
 785     {
 786         // Point size
 787         int foundIndex = str.Find(wxS("pt"));
 788         if (foundIndex != wxNOT_FOUND)
 789         {
 790             str.Truncate(foundIndex);
 791
 792             long sizeValue;
 793             if (str.ToLong(&sizeValue) == true)
 794             {
 795                 // Set point size
 796                 m_WParser->SetFontPointSize(sizeValue);
 797                 m_WParser->GetContainer()->InsertCell(
 798                     new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 799             }
 800         }
 801         // else: check for other ways of specifying size (TODO)
 802     }
 803
 804     str = styleParams.GetParam(wxS("font-weight"));
 805     if ( !str.empty() )
 806     {
 807         // Only bold and normal supported just now
 808         if ( str == wxS("bold") )
 809         {
 810             m_WParser->SetFontBold(true);
 811             m_WParser->GetContainer()->InsertCell(
 812                 new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 813         }
 814         else if ( str == wxS("normal") )
 815         {
 816             m_WParser->SetFontBold(false);
 817             m_WParser->GetContainer()->InsertCell(
 818                 new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 819         }
 820     }
 821
 822     str = styleParams.GetParam(wxS("font-style"));
 823     if ( !str.empty() )
 824     {
 825         // "oblique" and "italic" are more or less the same.
 826         // "inherit" (using the parent font) is not supported.
 827         if ( str == wxS("oblique") || str == wxS("italic") )
 828         {
 829             m_WParser->SetFontItalic(true);
 830             m_WParser->GetContainer()->InsertCell(
 831                 new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 832         }
 833         else if ( str == wxS("normal") )
 834         {
 835             m_WParser->SetFontItalic(false);
 836             m_WParser->GetContainer()->InsertCell(
 837                 new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 838         }
 839     }
 840
 841     str = styleParams.GetParam(wxS("text-decoration"));
 842     if ( !str.empty() )
 843     {
 844         // Only underline is supported.
 845         if ( str == wxS("underline") )
 846         {
 847             m_WParser->SetFontUnderlined(true);
 848             m_WParser->GetContainer()->InsertCell(
 849                 new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 850         }
 851     }
 852
 853     str = styleParams.GetParam(wxS("font-family"));
 854     if ( !str.empty() )
 855     {
 856         m_WParser->SetFontFace(str);
 857         m_WParser->GetContainer()->InsertCell(
 858             new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 859     }
 860 }
 861
 862 //-----------------------------------------------------------------------------
 863 // wxHtmlTagsModule
 864 //-----------------------------------------------------------------------------
 865
 866 // NB: This is *NOT* winpars.cpp's initialization and shutdown code!!
 867 //     This module is an ancestor for tag handlers modules defined
 868 //     in m_*.cpp files with TAGS_MODULE_BEGIN...TAGS_MODULE_END construct.
 869 //
 870 //     Do not add any winpars.cpp shutdown or initialization code to it,
 871 //     create a new module instead!
 872
 873 IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule)
 874
 875 bool wxHtmlTagsModule::OnInit()
 876 {
 877     wxHtmlWinParser::AddModule(this);
 878     return true;
 879 }
 880
 881 void wxHtmlTagsModule::OnExit()
 882 {
 883     wxHtmlWinParser::RemoveModule(this);
 884 }
 885
 886 #endif