| 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 | #ifdef __GNUG__ |
| 12 | #pragma implementation |
| 13 | #endif |
| 14 | |
| 15 | #include "wx/wxprec.h" |
| 16 | |
| 17 | #include "wx/defs.h" |
| 18 | #if wxUSE_HTML && wxUSE_STREAMS |
| 19 | |
| 20 | #ifdef __BORDLANDC__ |
| 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 | |
| 35 | |
| 36 | //----------------------------------------------------------------------------- |
| 37 | // wxHtmlWinParser |
| 38 | //----------------------------------------------------------------------------- |
| 39 | |
| 40 | |
| 41 | wxList wxHtmlWinParser::m_Modules; |
| 42 | |
| 43 | wxHtmlWinParser::wxHtmlWinParser(wxWindow *wnd) : wxHtmlParser() |
| 44 | { |
| 45 | m_Window = wnd; |
| 46 | m_Container = NULL; |
| 47 | m_DC = NULL; |
| 48 | m_CharHeight = m_CharWidth = 0; |
| 49 | m_UseLink = FALSE; |
| 50 | m_EncConv = NULL; |
| 51 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; |
| 52 | |
| 53 | { |
| 54 | int i, j, k, l, m; |
| 55 | for (i = 0; i < 2; i++) |
| 56 | for (j = 0; j < 2; j++) |
| 57 | for (k = 0; k < 2; k++) |
| 58 | for (l = 0; l < 2; l++) |
| 59 | for (m = 0; m < 7; m++) |
| 60 | { |
| 61 | m_FontsTable[i][j][k][l][m] = NULL; |
| 62 | m_FontsFacesTable[i][j][k][l][m] = wxEmptyString; |
| 63 | m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT; |
| 64 | } |
| 65 | #ifdef __WXMSW__ |
| 66 | static int default_sizes[7] = {7, 8, 10, 12, 16, 22, 30}; |
| 67 | #elif defined(__WXMAC__) |
| 68 | static int default_sizes[7] = {9, 12, 14, 18, 24, 30, 36}; |
| 69 | #else |
| 70 | static int default_sizes[7] = {10, 12, 14, 16, 19, 24, 32}; |
| 71 | #endif |
| 72 | SetFonts("", "", default_sizes); |
| 73 | } |
| 74 | |
| 75 | // fill in wxHtmlParser's tables: |
| 76 | wxNode *node = m_Modules.GetFirst(); |
| 77 | while (node) |
| 78 | { |
| 79 | wxHtmlTagsModule *mod = (wxHtmlTagsModule*) node->GetData(); |
| 80 | mod->FillHandlersTable(this); |
| 81 | node = node->GetNext(); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | |
| 86 | wxHtmlWinParser::~wxHtmlWinParser() |
| 87 | { |
| 88 | int i, j, k, l, m; |
| 89 | |
| 90 | for (i = 0; i < 2; i++) |
| 91 | for (j = 0; j < 2; j++) |
| 92 | for (k = 0; k < 2; k++) |
| 93 | for (l = 0; l < 2; l++) |
| 94 | for (m = 0; m < 7; m++) |
| 95 | { |
| 96 | if (m_FontsTable[i][j][k][l][m] != NULL) |
| 97 | delete m_FontsTable[i][j][k][l][m]; |
| 98 | } |
| 99 | if (m_EncConv) delete m_EncConv; |
| 100 | } |
| 101 | |
| 102 | |
| 103 | void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module) |
| 104 | { |
| 105 | m_Modules.Append(module); |
| 106 | } |
| 107 | |
| 108 | |
| 109 | |
| 110 | void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module) |
| 111 | { |
| 112 | m_Modules.DeleteObject(module); |
| 113 | } |
| 114 | |
| 115 | |
| 116 | |
| 117 | void wxHtmlWinParser::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes) |
| 118 | { |
| 119 | int i, j, k, l, m; |
| 120 | |
| 121 | for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i]; |
| 122 | m_FontFaceFixed = fixed_face; |
| 123 | m_FontFaceNormal = normal_face; |
| 124 | |
| 125 | SetInputEncoding(m_InputEnc); |
| 126 | |
| 127 | for (i = 0; i < 2; i++) |
| 128 | for (j = 0; j < 2; j++) |
| 129 | for (k = 0; k < 2; k++) |
| 130 | for (l = 0; l < 2; l++) |
| 131 | for (m = 0; m < 7; m++) { |
| 132 | if (m_FontsTable[i][j][k][l][m] != NULL) |
| 133 | { |
| 134 | delete m_FontsTable[i][j][k][l][m]; |
| 135 | m_FontsTable[i][j][k][l][m] = NULL; |
| 136 | } |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | |
| 141 | |
| 142 | void wxHtmlWinParser::InitParser(const wxString& source) |
| 143 | { |
| 144 | wxHtmlParser::InitParser(source); |
| 145 | wxASSERT_MSG(m_DC != NULL, _T("no DC assigned to wxHtmlWinParser!!")); |
| 146 | |
| 147 | m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE; |
| 148 | m_FontSize = 3; //default one |
| 149 | CreateCurrentFont(); // we're selecting default font into |
| 150 | m_DC->GetTextExtent("H", &m_CharWidth, &m_CharHeight); |
| 151 | /* NOTE : we're not using GetCharWidth/Height() because |
| 152 | of differences under X and win |
| 153 | */ |
| 154 | |
| 155 | m_UseLink = FALSE; |
| 156 | m_Link = wxHtmlLinkInfo("", ""); |
| 157 | m_LinkColor.Set(0, 0, 0xFF); |
| 158 | m_ActualColor.Set(0, 0, 0); |
| 159 | m_Align = wxHTML_ALIGN_LEFT; |
| 160 | m_tmpLastWasSpace = FALSE; |
| 161 | |
| 162 | OpenContainer(); |
| 163 | |
| 164 | OpenContainer(); |
| 165 | m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor)); |
| 166 | m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont())); |
| 167 | } |
| 168 | |
| 169 | |
| 170 | |
| 171 | void wxHtmlWinParser::DoneParser() |
| 172 | { |
| 173 | m_Container = NULL; |
| 174 | SetInputEncoding(wxFONTENCODING_DEFAULT); // for next call |
| 175 | wxHtmlParser::DoneParser(); |
| 176 | } |
| 177 | |
| 178 | |
| 179 | |
| 180 | wxObject* wxHtmlWinParser::GetProduct() |
| 181 | { |
| 182 | wxHtmlContainerCell *top; |
| 183 | |
| 184 | CloseContainer(); |
| 185 | OpenContainer(); |
| 186 | |
| 187 | top = m_Container; |
| 188 | while (top->GetParent()) top = top->GetParent(); |
| 189 | return top; |
| 190 | } |
| 191 | |
| 192 | |
| 193 | |
| 194 | void wxHtmlWinParser::AddText(const char* txt) |
| 195 | { |
| 196 | wxHtmlCell *c; |
| 197 | int i = 0, x, lng = strlen(txt); |
| 198 | char temp[wxHTML_BUFLEN]; |
| 199 | register char d; |
| 200 | int templen = 0; |
| 201 | |
| 202 | if (m_tmpLastWasSpace) |
| 203 | { |
| 204 | while ((i < lng) && |
| 205 | ((txt[i] == '\n') || (txt[i] == '\r') || (txt[i] == ' ') || |
| 206 | (txt[i] == '\t'))) i++; |
| 207 | } |
| 208 | |
| 209 | while (i < lng) |
| 210 | { |
| 211 | x = 0; |
| 212 | d = temp[templen++] = txt[i]; |
| 213 | if ((d == '\n') || (d == '\r') || (d == ' ') || (d == '\t')) |
| 214 | { |
| 215 | i++, x++; |
| 216 | while ((i < lng) && ((txt[i] == '\n') || (txt[i] == '\r') || |
| 217 | (txt[i] == ' ') || (txt[i] == '\t'))) i++, x++; |
| 218 | } |
| 219 | else i++; |
| 220 | |
| 221 | if (x) |
| 222 | { |
| 223 | temp[templen-1] = ' '; |
| 224 | temp[templen] = 0; |
| 225 | templen = 0; |
| 226 | if (m_EncConv) |
| 227 | m_EncConv->Convert(temp); |
| 228 | c = new wxHtmlWordCell(GetEntitiesParser()->Parse(temp), *(GetDC())); |
| 229 | if (m_UseLink) |
| 230 | c->SetLink(m_Link); |
| 231 | m_Container->InsertCell(c); |
| 232 | m_tmpLastWasSpace = TRUE; |
| 233 | } |
| 234 | } |
| 235 | if (templen) |
| 236 | { |
| 237 | temp[templen] = 0; |
| 238 | if (m_EncConv) |
| 239 | m_EncConv->Convert(temp); |
| 240 | c = new wxHtmlWordCell(GetEntitiesParser()->Parse(temp), *(GetDC())); |
| 241 | if (m_UseLink) |
| 242 | c->SetLink(m_Link); |
| 243 | m_Container->InsertCell(c); |
| 244 | m_tmpLastWasSpace = FALSE; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | |
| 249 | |
| 250 | wxHtmlContainerCell* wxHtmlWinParser::OpenContainer() |
| 251 | { |
| 252 | m_Container = new wxHtmlContainerCell(m_Container); |
| 253 | m_Container->SetAlignHor(m_Align); |
| 254 | m_tmpLastWasSpace = TRUE; |
| 255 | /* to avoid space being first character in paragraph */ |
| 256 | return m_Container; |
| 257 | } |
| 258 | |
| 259 | |
| 260 | |
| 261 | wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c) |
| 262 | { |
| 263 | m_tmpLastWasSpace = TRUE; |
| 264 | /* to avoid space being first character in paragraph */ |
| 265 | return m_Container = c; |
| 266 | } |
| 267 | |
| 268 | |
| 269 | |
| 270 | wxHtmlContainerCell* wxHtmlWinParser::CloseContainer() |
| 271 | { |
| 272 | m_Container = m_Container->GetParent(); |
| 273 | return m_Container; |
| 274 | } |
| 275 | |
| 276 | |
| 277 | void wxHtmlWinParser::SetFontSize(int s) |
| 278 | { |
| 279 | if (s < 1) s = 1; |
| 280 | else if (s > 7) s = 7; |
| 281 | m_FontSize = s; |
| 282 | } |
| 283 | |
| 284 | |
| 285 | |
| 286 | wxFont* wxHtmlWinParser::CreateCurrentFont() |
| 287 | { |
| 288 | int fb = GetFontBold(), |
| 289 | fi = GetFontItalic(), |
| 290 | fu = GetFontUnderlined(), |
| 291 | ff = GetFontFixed(), |
| 292 | fs = GetFontSize() - 1 /*remap from <1;7> to <0;6>*/ ; |
| 293 | |
| 294 | wxString face = ff ? m_FontFaceFixed : m_FontFaceNormal; |
| 295 | wxString *faceptr = &(m_FontsFacesTable[fb][fi][fu][ff][fs]); |
| 296 | wxFont **fontptr = &(m_FontsTable[fb][fi][fu][ff][fs]); |
| 297 | wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]); |
| 298 | |
| 299 | if (*fontptr != NULL && (*faceptr != face || *encptr != m_OutputEnc)) |
| 300 | { |
| 301 | delete *fontptr; |
| 302 | *fontptr = NULL; |
| 303 | } |
| 304 | |
| 305 | if (*fontptr == NULL) |
| 306 | { |
| 307 | *faceptr = face; |
| 308 | *encptr = m_OutputEnc; |
| 309 | *fontptr = new wxFont( |
| 310 | (int) (m_FontsSizes[fs] * m_PixelScale), |
| 311 | ff ? wxMODERN : wxSWISS, |
| 312 | fi ? wxITALIC : wxNORMAL, |
| 313 | fb ? wxBOLD : wxNORMAL, |
| 314 | fu ? TRUE : FALSE, face, |
| 315 | m_OutputEnc); |
| 316 | } |
| 317 | m_DC->SetFont(**fontptr); |
| 318 | return (*fontptr); |
| 319 | } |
| 320 | |
| 321 | |
| 322 | |
| 323 | void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link) |
| 324 | { |
| 325 | m_Link = link; |
| 326 | m_UseLink = (link.GetHref() != wxEmptyString); |
| 327 | } |
| 328 | |
| 329 | |
| 330 | void wxHtmlWinParser::SetFontFace(const wxString& face) |
| 331 | { |
| 332 | if (GetFontFixed()) m_FontFaceFixed = face; |
| 333 | else m_FontFaceNormal = face; |
| 334 | |
| 335 | if (m_InputEnc != wxFONTENCODING_DEFAULT) |
| 336 | SetInputEncoding(m_InputEnc); |
| 337 | } |
| 338 | |
| 339 | |
| 340 | |
| 341 | void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc) |
| 342 | { |
| 343 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; |
| 344 | if (m_EncConv) |
| 345 | { |
| 346 | delete m_EncConv; |
| 347 | m_EncConv = NULL; |
| 348 | } |
| 349 | |
| 350 | if (enc == wxFONTENCODING_DEFAULT) return; |
| 351 | |
| 352 | wxFontEncoding altfix, altnorm; |
| 353 | bool availfix, availnorm; |
| 354 | |
| 355 | // exact match? |
| 356 | availnorm = wxTheFontMapper->IsEncodingAvailable(enc, m_FontFaceNormal); |
| 357 | availfix = wxTheFontMapper->IsEncodingAvailable(enc, m_FontFaceFixed); |
| 358 | if (availnorm && availfix) |
| 359 | m_OutputEnc = enc; |
| 360 | |
| 361 | // alternatives? |
| 362 | else if (wxTheFontMapper->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE) && |
| 363 | wxTheFontMapper->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, FALSE) && |
| 364 | altnorm == altfix) |
| 365 | m_OutputEnc = altnorm; |
| 366 | |
| 367 | // at least normal face? |
| 368 | else if (availnorm) |
| 369 | m_OutputEnc = enc; |
| 370 | else if (wxTheFontMapper->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE)) |
| 371 | m_OutputEnc = altnorm; |
| 372 | |
| 373 | // okay, let convert to ISO_8859-1, available always |
| 374 | else |
| 375 | m_OutputEnc = wxFONTENCODING_DEFAULT; |
| 376 | |
| 377 | m_InputEnc = enc; |
| 378 | if (m_OutputEnc == wxFONTENCODING_DEFAULT) |
| 379 | GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM); |
| 380 | else |
| 381 | GetEntitiesParser()->SetEncoding(m_OutputEnc); |
| 382 | |
| 383 | if (m_InputEnc == m_OutputEnc) return; |
| 384 | |
| 385 | m_EncConv = new wxEncodingConverter(); |
| 386 | if (!m_EncConv->Init(m_InputEnc, |
| 387 | (m_OutputEnc == wxFONTENCODING_DEFAULT) ? |
| 388 | wxFONTENCODING_ISO8859_1 : m_OutputEnc, |
| 389 | wxCONVERT_SUBSTITUTE)) |
| 390 | { // total failture :-( |
| 391 | wxLogError(_("Failed to display HTML document in %s encoding"), |
| 392 | wxFontMapper::GetEncodingName(enc).c_str()); |
| 393 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; |
| 394 | delete m_EncConv; |
| 395 | m_EncConv = NULL; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | |
| 400 | |
| 401 | |
| 402 | |
| 403 | //----------------------------------------------------------------------------- |
| 404 | // wxHtmlWinTagHandler |
| 405 | //----------------------------------------------------------------------------- |
| 406 | |
| 407 | IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler) |
| 408 | |
| 409 | |
| 410 | |
| 411 | //----------------------------------------------------------------------------- |
| 412 | // wxHtmlTagsModule |
| 413 | //----------------------------------------------------------------------------- |
| 414 | |
| 415 | |
| 416 | IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule) |
| 417 | |
| 418 | |
| 419 | bool wxHtmlTagsModule::OnInit() |
| 420 | { |
| 421 | wxHtmlWinParser::AddModule(this); |
| 422 | return TRUE; |
| 423 | } |
| 424 | |
| 425 | |
| 426 | |
| 427 | void wxHtmlTagsModule::OnExit() |
| 428 | { |
| 429 | wxHtmlWinParser::RemoveModule(this); |
| 430 | } |
| 431 | #endif |
| 432 | |