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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 |