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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 | #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_tmpStrBuf = NULL; | |
46 | m_tmpStrBufSize = 0; | |
47 | m_Window = wnd; | |
48 | m_Container = NULL; | |
49 | m_DC = NULL; | |
50 | m_CharHeight = m_CharWidth = 0; | |
51 | m_UseLink = FALSE; | |
52 | m_EncConv = NULL; | |
53 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; | |
54 | ||
55 | { | |
56 | int i, j, k, l, m; | |
57 | for (i = 0; i < 2; i++) | |
58 | for (j = 0; j < 2; j++) | |
59 | for (k = 0; k < 2; k++) | |
60 | for (l = 0; l < 2; l++) | |
61 | for (m = 0; m < 7; m++) | |
62 | { | |
63 | m_FontsTable[i][j][k][l][m] = NULL; | |
64 | m_FontsFacesTable[i][j][k][l][m] = wxEmptyString; | |
65 | m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT; | |
66 | } | |
67 | #ifdef __WXMSW__ | |
68 | static int default_sizes[7] = {7, 8, 10, 12, 16, 22, 30}; | |
69 | #elif defined(__WXMAC__) | |
70 | static int default_sizes[7] = {9, 12, 14, 18, 24, 30, 36}; | |
71 | #else | |
72 | static int default_sizes[7] = {10, 12, 14, 16, 19, 24, 32}; | |
73 | #endif | |
74 | SetFonts("", "", default_sizes); | |
75 | } | |
76 | ||
77 | // fill in wxHtmlParser's tables: | |
78 | wxNode *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 | ||
88 | wxHtmlWinParser::~wxHtmlWinParser() | |
89 | { | |
90 | int i, j, k, l, m; | |
91 | ||
92 | for (i = 0; i < 2; i++) | |
93 | for (j = 0; j < 2; j++) | |
94 | for (k = 0; k < 2; k++) | |
95 | for (l = 0; l < 2; l++) | |
96 | for (m = 0; m < 7; m++) | |
97 | { | |
98 | if (m_FontsTable[i][j][k][l][m] != NULL) | |
99 | delete m_FontsTable[i][j][k][l][m]; | |
100 | } | |
101 | delete m_EncConv; | |
102 | delete[] m_tmpStrBuf; | |
103 | } | |
104 | ||
105 | ||
106 | void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module) | |
107 | { | |
108 | m_Modules.Append(module); | |
109 | } | |
110 | ||
111 | ||
112 | ||
113 | void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module) | |
114 | { | |
115 | m_Modules.DeleteObject(module); | |
116 | } | |
117 | ||
118 | ||
119 | ||
120 | void wxHtmlWinParser::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes) | |
121 | { | |
122 | int i, j, k, l, m; | |
123 | ||
124 | for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i]; | |
125 | m_FontFaceFixed = fixed_face; | |
126 | m_FontFaceNormal = normal_face; | |
127 | ||
128 | SetInputEncoding(m_InputEnc); | |
129 | ||
130 | for (i = 0; i < 2; i++) | |
131 | for (j = 0; j < 2; j++) | |
132 | for (k = 0; k < 2; k++) | |
133 | for (l = 0; l < 2; l++) | |
134 | for (m = 0; m < 7; m++) { | |
135 | if (m_FontsTable[i][j][k][l][m] != NULL) | |
136 | { | |
137 | delete m_FontsTable[i][j][k][l][m]; | |
138 | m_FontsTable[i][j][k][l][m] = NULL; | |
139 | } | |
140 | } | |
141 | } | |
142 | ||
143 | ||
144 | ||
145 | void wxHtmlWinParser::InitParser(const wxString& source) | |
146 | { | |
147 | wxHtmlParser::InitParser(source); | |
148 | wxASSERT_MSG(m_DC != NULL, _T("no DC assigned to wxHtmlWinParser!!")); | |
149 | ||
150 | m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE; | |
151 | m_FontSize = 3; //default one | |
152 | CreateCurrentFont(); // we're selecting default font into | |
153 | m_DC->GetTextExtent("H", &m_CharWidth, &m_CharHeight); | |
154 | /* NOTE : we're not using GetCharWidth/Height() because | |
155 | of differences under X and win | |
156 | */ | |
157 | ||
158 | m_UseLink = FALSE; | |
159 | m_Link = wxHtmlLinkInfo("", ""); | |
160 | m_LinkColor.Set(0, 0, 0xFF); | |
161 | m_ActualColor.Set(0, 0, 0); | |
162 | m_Align = wxHTML_ALIGN_LEFT; | |
163 | m_tmpLastWasSpace = FALSE; | |
164 | ||
165 | OpenContainer(); | |
166 | ||
167 | OpenContainer(); | |
168 | m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor)); | |
169 | m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont())); | |
170 | } | |
171 | ||
172 | ||
173 | ||
174 | void wxHtmlWinParser::DoneParser() | |
175 | { | |
176 | m_Container = NULL; | |
177 | SetInputEncoding(wxFONTENCODING_DEFAULT); // for next call | |
178 | wxHtmlParser::DoneParser(); | |
179 | } | |
180 | ||
181 | ||
182 | ||
183 | wxObject* wxHtmlWinParser::GetProduct() | |
184 | { | |
185 | wxHtmlContainerCell *top; | |
186 | ||
187 | CloseContainer(); | |
188 | OpenContainer(); | |
189 | ||
190 | top = m_Container; | |
191 | while (top->GetParent()) top = top->GetParent(); | |
192 | return top; | |
193 | } | |
194 | ||
195 | ||
196 | void wxHtmlWinParser::AddText(const wxChar* txt) | |
197 | { | |
198 | wxHtmlCell *c; | |
199 | size_t i = 0, | |
200 | x, | |
201 | lng = wxStrlen(txt); | |
202 | register wxChar d; | |
203 | int templen = 0; | |
204 | ||
205 | if (lng+1 > m_tmpStrBufSize) | |
206 | { | |
207 | delete[] m_tmpStrBuf; | |
208 | m_tmpStrBuf = new wxChar[lng+1]; | |
209 | m_tmpStrBufSize = lng+1; | |
210 | } | |
211 | wxChar *temp = m_tmpStrBuf; | |
212 | ||
213 | if (m_tmpLastWasSpace) | |
214 | { | |
215 | while ((i < lng) && | |
216 | ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || (txt[i] == wxT(' ')) || | |
217 | (txt[i] == wxT('\t')))) i++; | |
218 | } | |
219 | ||
220 | while (i < lng) | |
221 | { | |
222 | x = 0; | |
223 | d = temp[templen++] = txt[i]; | |
224 | if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t'))) | |
225 | { | |
226 | i++, x++; | |
227 | while ((i < lng) && ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || | |
228 | (txt[i] == wxT(' ')) || (txt[i] == wxT('\t')))) i++, x++; | |
229 | } | |
230 | else i++; | |
231 | ||
232 | if (x) | |
233 | { | |
234 | temp[templen-1] = wxT(' '); | |
235 | temp[templen] = 0; | |
236 | templen = 0; | |
237 | if (m_EncConv) | |
238 | m_EncConv->Convert(temp); | |
239 | c = new wxHtmlWordCell(GetEntitiesParser()->Parse(temp), *(GetDC())); | |
240 | if (m_UseLink) | |
241 | c->SetLink(m_Link); | |
242 | m_Container->InsertCell(c); | |
243 | m_tmpLastWasSpace = TRUE; | |
244 | } | |
245 | } | |
246 | if (templen) | |
247 | { | |
248 | temp[templen] = 0; | |
249 | if (m_EncConv) | |
250 | m_EncConv->Convert(temp); | |
251 | c = new wxHtmlWordCell(GetEntitiesParser()->Parse(temp), *(GetDC())); | |
252 | if (m_UseLink) | |
253 | c->SetLink(m_Link); | |
254 | m_Container->InsertCell(c); | |
255 | m_tmpLastWasSpace = FALSE; | |
256 | } | |
257 | } | |
258 | ||
259 | ||
260 | ||
261 | wxHtmlContainerCell* wxHtmlWinParser::OpenContainer() | |
262 | { | |
263 | m_Container = new wxHtmlContainerCell(m_Container); | |
264 | m_Container->SetAlignHor(m_Align); | |
265 | m_tmpLastWasSpace = TRUE; | |
266 | /* to avoid space being first character in paragraph */ | |
267 | return m_Container; | |
268 | } | |
269 | ||
270 | ||
271 | ||
272 | wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c) | |
273 | { | |
274 | m_tmpLastWasSpace = TRUE; | |
275 | /* to avoid space being first character in paragraph */ | |
276 | return m_Container = c; | |
277 | } | |
278 | ||
279 | ||
280 | ||
281 | wxHtmlContainerCell* wxHtmlWinParser::CloseContainer() | |
282 | { | |
283 | m_Container = m_Container->GetParent(); | |
284 | return m_Container; | |
285 | } | |
286 | ||
287 | ||
288 | void wxHtmlWinParser::SetFontSize(int s) | |
289 | { | |
290 | if (s < 1) s = 1; | |
291 | else if (s > 7) s = 7; | |
292 | m_FontSize = s; | |
293 | } | |
294 | ||
295 | ||
296 | ||
297 | wxFont* wxHtmlWinParser::CreateCurrentFont() | |
298 | { | |
299 | int fb = GetFontBold(), | |
300 | fi = GetFontItalic(), | |
301 | fu = GetFontUnderlined(), | |
302 | ff = GetFontFixed(), | |
303 | fs = GetFontSize() - 1 /*remap from <1;7> to <0;6>*/ ; | |
304 | ||
305 | wxString face = ff ? m_FontFaceFixed : m_FontFaceNormal; | |
306 | wxString *faceptr = &(m_FontsFacesTable[fb][fi][fu][ff][fs]); | |
307 | wxFont **fontptr = &(m_FontsTable[fb][fi][fu][ff][fs]); | |
308 | wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]); | |
309 | ||
310 | if (*fontptr != NULL && (*faceptr != face || *encptr != m_OutputEnc)) | |
311 | { | |
312 | delete *fontptr; | |
313 | *fontptr = NULL; | |
314 | } | |
315 | ||
316 | if (*fontptr == NULL) | |
317 | { | |
318 | *faceptr = face; | |
319 | *encptr = m_OutputEnc; | |
320 | *fontptr = new wxFont( | |
321 | (int) (m_FontsSizes[fs] * m_PixelScale), | |
322 | ff ? wxMODERN : wxSWISS, | |
323 | fi ? wxITALIC : wxNORMAL, | |
324 | fb ? wxBOLD : wxNORMAL, | |
325 | fu ? TRUE : FALSE, face, | |
326 | m_OutputEnc); | |
327 | } | |
328 | m_DC->SetFont(**fontptr); | |
329 | return (*fontptr); | |
330 | } | |
331 | ||
332 | ||
333 | ||
334 | void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link) | |
335 | { | |
336 | m_Link = link; | |
337 | m_UseLink = (link.GetHref() != wxEmptyString); | |
338 | } | |
339 | ||
340 | ||
341 | void wxHtmlWinParser::SetFontFace(const wxString& face) | |
342 | { | |
343 | if (GetFontFixed()) m_FontFaceFixed = face; | |
344 | else m_FontFaceNormal = face; | |
345 | ||
346 | if (m_InputEnc != wxFONTENCODING_DEFAULT) | |
347 | SetInputEncoding(m_InputEnc); | |
348 | } | |
349 | ||
350 | ||
351 | ||
352 | void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc) | |
353 | { | |
354 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; | |
355 | if (m_EncConv) | |
356 | { | |
357 | delete m_EncConv; | |
358 | m_EncConv = NULL; | |
359 | } | |
360 | ||
361 | if (enc == wxFONTENCODING_DEFAULT) return; | |
362 | ||
363 | wxFontEncoding altfix, altnorm; | |
364 | bool availfix, availnorm; | |
365 | ||
366 | // exact match? | |
367 | availnorm = wxTheFontMapper->IsEncodingAvailable(enc, m_FontFaceNormal); | |
368 | availfix = wxTheFontMapper->IsEncodingAvailable(enc, m_FontFaceFixed); | |
369 | if (availnorm && availfix) | |
370 | m_OutputEnc = enc; | |
371 | ||
372 | // alternatives? | |
373 | else if (wxTheFontMapper->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE) && | |
374 | wxTheFontMapper->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, FALSE) && | |
375 | altnorm == altfix) | |
376 | m_OutputEnc = altnorm; | |
377 | ||
378 | // at least normal face? | |
379 | else if (availnorm) | |
380 | m_OutputEnc = enc; | |
381 | else if (wxTheFontMapper->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE)) | |
382 | m_OutputEnc = altnorm; | |
383 | ||
384 | // okay, let convert to ISO_8859-1, available always | |
385 | else | |
386 | m_OutputEnc = wxFONTENCODING_DEFAULT; | |
387 | ||
388 | m_InputEnc = enc; | |
389 | if (m_OutputEnc == wxFONTENCODING_DEFAULT) | |
390 | GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM); | |
391 | else | |
392 | GetEntitiesParser()->SetEncoding(m_OutputEnc); | |
393 | ||
394 | if (m_InputEnc == m_OutputEnc) return; | |
395 | ||
396 | m_EncConv = new wxEncodingConverter(); | |
397 | if (!m_EncConv->Init(m_InputEnc, | |
398 | (m_OutputEnc == wxFONTENCODING_DEFAULT) ? | |
399 | wxFONTENCODING_ISO8859_1 : m_OutputEnc, | |
400 | wxCONVERT_SUBSTITUTE)) | |
401 | { // total failture :-( | |
402 | wxLogError(_("Failed to display HTML document in %s encoding"), | |
403 | wxFontMapper::GetEncodingName(enc).c_str()); | |
404 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; | |
405 | delete m_EncConv; | |
406 | m_EncConv = NULL; | |
407 | } | |
408 | } | |
409 | ||
410 | ||
411 | ||
412 | ||
413 | ||
414 | //----------------------------------------------------------------------------- | |
415 | // wxHtmlWinTagHandler | |
416 | //----------------------------------------------------------------------------- | |
417 | ||
418 | IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler) | |
419 | ||
420 | ||
421 | ||
422 | //----------------------------------------------------------------------------- | |
423 | // wxHtmlTagsModule | |
424 | //----------------------------------------------------------------------------- | |
425 | ||
426 | ||
427 | IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule) | |
428 | ||
429 | ||
430 | bool wxHtmlTagsModule::OnInit() | |
431 | { | |
432 | wxHtmlWinParser::AddModule(this); | |
433 | return TRUE; | |
434 | } | |
435 | ||
436 | ||
437 | ||
438 | void wxHtmlTagsModule::OnExit() | |
439 | { | |
440 | wxHtmlWinParser::RemoveModule(this); | |
441 | } | |
442 | #endif | |
443 |