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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/wx.h" | |
26 | #endif | |
27 | ||
28 | #include "wx/html/htmldefs.h" | |
29 | #include "wx/html/winpars.h" | |
30 | #include "wx/html/htmlwin.h" | |
31 | #include "wx/fontmap.h" | |
32 | #include "wx/log.h" | |
33 | ||
34 | ||
35 | //----------------------------------------------------------------------------- | |
36 | // wxHtmlWinParser | |
37 | //----------------------------------------------------------------------------- | |
38 | ||
39 | ||
40 | wxList wxHtmlWinParser::m_Modules; | |
41 | ||
42 | wxHtmlWinParser::wxHtmlWinParser(wxWindow *wnd) : wxHtmlParser() | |
43 | { | |
44 | m_Window = wnd; | |
45 | m_Container = NULL; | |
46 | m_DC = NULL; | |
47 | m_CharHeight = m_CharWidth = 0; | |
48 | m_UseLink = FALSE; | |
49 | m_EncConv = NULL; | |
50 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; | |
51 | ||
52 | { | |
53 | int i, j, k, l, m; | |
54 | for (i = 0; i < 2; i++) | |
55 | for (j = 0; j < 2; j++) | |
56 | for (k = 0; k < 2; k++) | |
57 | for (l = 0; l < 2; l++) | |
58 | for (m = 0; m < 7; m++) | |
59 | { | |
60 | m_FontsTable[i][j][k][l][m] = NULL; | |
61 | m_FontsFacesTable[i][j][k][l][m] = wxEmptyString; | |
62 | m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT; | |
63 | } | |
64 | #ifdef __WXMSW__ | |
65 | static int default_sizes[7] = {7, 8, 10, 12, 16, 22, 30}; | |
66 | #elif defined(__WXMAC__) | |
67 | static int default_sizes[7] = {9, 12, 14, 18, 24, 30, 36}; | |
68 | #else | |
69 | static int default_sizes[7] = {10, 12, 14, 16, 19, 24, 32}; | |
70 | #endif | |
71 | SetFonts("", "", default_sizes); | |
72 | } | |
73 | ||
74 | // fill in wxHtmlParser's tables: | |
75 | wxNode *node = m_Modules.GetFirst(); | |
76 | while (node) | |
77 | { | |
78 | wxHtmlTagsModule *mod = (wxHtmlTagsModule*) node->GetData(); | |
79 | mod->FillHandlersTable(this); | |
80 | node = node->GetNext(); | |
81 | } | |
82 | } | |
83 | ||
84 | ||
85 | wxHtmlWinParser::~wxHtmlWinParser() | |
86 | { | |
87 | int i, j, k, l, m; | |
88 | ||
89 | for (i = 0; i < 2; i++) | |
90 | for (j = 0; j < 2; j++) | |
91 | for (k = 0; k < 2; k++) | |
92 | for (l = 0; l < 2; l++) | |
93 | for (m = 0; m < 7; m++) | |
94 | { | |
95 | if (m_FontsTable[i][j][k][l][m] != NULL) | |
96 | delete m_FontsTable[i][j][k][l][m]; | |
97 | } | |
98 | if (m_EncConv) delete m_EncConv; | |
99 | } | |
100 | ||
101 | ||
102 | void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module) | |
103 | { | |
104 | m_Modules.Append(module); | |
105 | } | |
106 | ||
107 | ||
108 | ||
109 | void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module) | |
110 | { | |
111 | m_Modules.DeleteObject(module); | |
112 | } | |
113 | ||
114 | ||
115 | ||
116 | void wxHtmlWinParser::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes) | |
117 | { | |
118 | int i, j, k, l, m; | |
119 | ||
120 | for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i]; | |
121 | m_FontFaceFixed = fixed_face; | |
122 | m_FontFaceNormal = normal_face; | |
123 | ||
124 | SetInputEncoding(m_InputEnc); | |
125 | ||
126 | for (i = 0; i < 2; i++) | |
127 | for (j = 0; j < 2; j++) | |
128 | for (k = 0; k < 2; k++) | |
129 | for (l = 0; l < 2; l++) | |
130 | for (m = 0; m < 7; m++) { | |
131 | if (m_FontsTable[i][j][k][l][m] != NULL) | |
132 | { | |
133 | delete m_FontsTable[i][j][k][l][m]; | |
134 | m_FontsTable[i][j][k][l][m] = NULL; | |
135 | } | |
136 | } | |
137 | } | |
138 | ||
139 | ||
140 | ||
141 | void wxHtmlWinParser::InitParser(const wxString& source) | |
142 | { | |
143 | wxHtmlParser::InitParser(source); | |
144 | wxASSERT_MSG(m_DC != NULL, _T("no DC assigned to wxHtmlWinParser!!")); | |
145 | ||
146 | m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE; | |
147 | m_FontSize = 3; //default one | |
148 | CreateCurrentFont(); // we're selecting default font into | |
149 | m_DC->GetTextExtent("H", &m_CharWidth, &m_CharHeight); | |
150 | /* NOTE : we're not using GetCharWidth/Height() because | |
151 | of differences under X and win | |
152 | */ | |
153 | ||
154 | m_UseLink = FALSE; | |
155 | m_Link = wxHtmlLinkInfo("", ""); | |
156 | m_LinkColor.Set(0, 0, 0xFF); | |
157 | m_ActualColor.Set(0, 0, 0); | |
158 | m_Align = wxHTML_ALIGN_LEFT; | |
159 | m_tmpLastWasSpace = FALSE; | |
160 | ||
161 | OpenContainer(); | |
162 | ||
163 | OpenContainer(); | |
164 | m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor)); | |
165 | m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont())); | |
166 | } | |
167 | ||
168 | ||
169 | ||
170 | void wxHtmlWinParser::DoneParser() | |
171 | { | |
172 | m_Container = NULL; | |
173 | SetInputEncoding(wxFONTENCODING_DEFAULT); // for next call | |
174 | wxHtmlParser::DoneParser(); | |
175 | } | |
176 | ||
177 | ||
178 | ||
179 | wxObject* wxHtmlWinParser::GetProduct() | |
180 | { | |
181 | wxHtmlContainerCell *top; | |
182 | ||
183 | CloseContainer(); | |
184 | OpenContainer(); | |
185 | ||
186 | top = m_Container; | |
187 | while (top->GetParent()) top = top->GetParent(); | |
188 | return top; | |
189 | } | |
190 | ||
191 | ||
192 | ||
193 | void wxHtmlWinParser::AddText(const char* txt) | |
194 | { | |
195 | wxHtmlCell *c; | |
196 | int i = 0, x, lng = strlen(txt); | |
197 | char temp[wxHTML_BUFLEN]; | |
198 | register char d; | |
199 | int templen = 0; | |
200 | ||
201 | if (m_tmpLastWasSpace) | |
202 | { | |
203 | while ((i < lng) && | |
204 | ((txt[i] == '\n') || (txt[i] == '\r') || (txt[i] == ' ') || | |
205 | (txt[i] == '\t'))) i++; | |
206 | } | |
207 | ||
208 | while (i < lng) | |
209 | { | |
210 | x = 0; | |
211 | d = temp[templen++] = txt[i]; | |
212 | if ((d == '\n') || (d == '\r') || (d == ' ') || (d == '\t')) | |
213 | { | |
214 | i++, x++; | |
215 | while ((i < lng) && ((txt[i] == '\n') || (txt[i] == '\r') || | |
216 | (txt[i] == ' ') || (txt[i] == '\t'))) i++, x++; | |
217 | } | |
218 | else i++; | |
219 | ||
220 | if (x) | |
221 | { | |
222 | temp[templen-1] = ' '; | |
223 | temp[templen] = 0; | |
224 | templen = 0; | |
225 | if (m_EncConv) | |
226 | m_EncConv->Convert(temp); | |
227 | c = new wxHtmlWordCell(GetEntitiesParser()->Parse(temp), *(GetDC())); | |
228 | if (m_UseLink) | |
229 | c->SetLink(m_Link); | |
230 | m_Container->InsertCell(c); | |
231 | m_tmpLastWasSpace = TRUE; | |
232 | } | |
233 | } | |
234 | if (templen) | |
235 | { | |
236 | temp[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 = FALSE; | |
244 | } | |
245 | } | |
246 | ||
247 | ||
248 | ||
249 | wxHtmlContainerCell* wxHtmlWinParser::OpenContainer() | |
250 | { | |
251 | m_Container = new wxHtmlContainerCell(m_Container); | |
252 | m_Container->SetAlignHor(m_Align); | |
253 | m_tmpLastWasSpace = TRUE; | |
254 | /* to avoid space being first character in paragraph */ | |
255 | return m_Container; | |
256 | } | |
257 | ||
258 | ||
259 | ||
260 | wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c) | |
261 | { | |
262 | m_tmpLastWasSpace = TRUE; | |
263 | /* to avoid space being first character in paragraph */ | |
264 | return m_Container = c; | |
265 | } | |
266 | ||
267 | ||
268 | ||
269 | wxHtmlContainerCell* wxHtmlWinParser::CloseContainer() | |
270 | { | |
271 | m_Container = m_Container->GetParent(); | |
272 | return m_Container; | |
273 | } | |
274 | ||
275 | ||
276 | void wxHtmlWinParser::SetFontSize(int s) | |
277 | { | |
278 | if (s < 1) s = 1; | |
279 | else if (s > 7) s = 7; | |
280 | m_FontSize = s; | |
281 | } | |
282 | ||
283 | ||
284 | ||
285 | wxFont* wxHtmlWinParser::CreateCurrentFont() | |
286 | { | |
287 | int fb = GetFontBold(), | |
288 | fi = GetFontItalic(), | |
289 | fu = GetFontUnderlined(), | |
290 | ff = GetFontFixed(), | |
291 | fs = GetFontSize() - 1 /*remap from <1;7> to <0;6>*/ ; | |
292 | ||
293 | wxString face = ff ? m_FontFaceFixed : m_FontFaceNormal; | |
294 | wxString *faceptr = &(m_FontsFacesTable[fb][fi][fu][ff][fs]); | |
295 | wxFont **fontptr = &(m_FontsTable[fb][fi][fu][ff][fs]); | |
296 | wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]); | |
297 | ||
298 | if (*fontptr != NULL && (*faceptr != face || *encptr != m_OutputEnc)) | |
299 | { | |
300 | delete *fontptr; | |
301 | *fontptr = NULL; | |
302 | } | |
303 | ||
304 | if (*fontptr == NULL) | |
305 | { | |
306 | *faceptr = face; | |
307 | *encptr = m_OutputEnc; | |
308 | *fontptr = new wxFont( | |
309 | (int) (m_FontsSizes[fs] * m_PixelScale), | |
310 | ff ? wxMODERN : wxSWISS, | |
311 | fi ? wxITALIC : wxNORMAL, | |
312 | fb ? wxBOLD : wxNORMAL, | |
313 | fu ? TRUE : FALSE, face, | |
314 | m_OutputEnc); | |
315 | } | |
316 | m_DC->SetFont(**fontptr); | |
317 | return (*fontptr); | |
318 | } | |
319 | ||
320 | ||
321 | ||
322 | void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link) | |
323 | { | |
324 | m_Link = link; | |
325 | m_UseLink = (link.GetHref() != wxEmptyString); | |
326 | } | |
327 | ||
328 | ||
329 | void wxHtmlWinParser::SetFontFace(const wxString& face) | |
330 | { | |
331 | if (GetFontFixed()) m_FontFaceFixed = face; | |
332 | else m_FontFaceNormal = face; | |
333 | ||
334 | if (m_InputEnc != wxFONTENCODING_DEFAULT) | |
335 | SetInputEncoding(m_InputEnc); | |
336 | } | |
337 | ||
338 | ||
339 | ||
340 | void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc) | |
341 | { | |
342 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; | |
343 | if (m_EncConv) | |
344 | { | |
345 | delete m_EncConv; | |
346 | m_EncConv = NULL; | |
347 | } | |
348 | ||
349 | if (enc == wxFONTENCODING_DEFAULT) return; | |
350 | ||
351 | wxFontEncoding altfix, altnorm; | |
352 | bool availfix, availnorm; | |
353 | ||
354 | // exact match? | |
355 | availnorm = wxTheFontMapper->IsEncodingAvailable(enc, m_FontFaceNormal); | |
356 | availfix = wxTheFontMapper->IsEncodingAvailable(enc, m_FontFaceFixed); | |
357 | if (availnorm && availfix) | |
358 | m_OutputEnc = enc; | |
359 | ||
360 | // alternatives? | |
361 | else if (wxTheFontMapper->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE) && | |
362 | wxTheFontMapper->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, FALSE) && | |
363 | altnorm == altfix) | |
364 | m_OutputEnc = altnorm; | |
365 | ||
366 | // at least normal face? | |
367 | else if (availnorm) | |
368 | m_OutputEnc = enc; | |
369 | else if (wxTheFontMapper->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE)) | |
370 | m_OutputEnc = altnorm; | |
371 | ||
372 | // okay, let convert to ISO_8859-1, available always | |
373 | else | |
374 | m_OutputEnc = wxFONTENCODING_DEFAULT; | |
375 | ||
376 | m_InputEnc = enc; | |
377 | if (m_OutputEnc == wxFONTENCODING_DEFAULT) | |
378 | GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM); | |
379 | else | |
380 | GetEntitiesParser()->SetEncoding(m_OutputEnc); | |
381 | ||
382 | if (m_InputEnc == m_OutputEnc) return; | |
383 | ||
384 | m_EncConv = new wxEncodingConverter(); | |
385 | if (!m_EncConv->Init(m_InputEnc, | |
386 | (m_OutputEnc == wxFONTENCODING_DEFAULT) ? | |
387 | wxFONTENCODING_ISO8859_1 : m_OutputEnc, | |
388 | wxCONVERT_SUBSTITUTE)) | |
389 | { // total failture :-( | |
390 | wxLogError(_("Failed to display HTML document in %s encoding"), | |
391 | wxFontMapper::GetEncodingName(enc).c_str()); | |
392 | m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; | |
393 | delete m_EncConv; | |
394 | m_EncConv = NULL; | |
395 | } | |
396 | } | |
397 | ||
398 | ||
399 | ||
400 | ||
401 | ||
402 | //----------------------------------------------------------------------------- | |
403 | // wxHtmlWinTagHandler | |
404 | //----------------------------------------------------------------------------- | |
405 | ||
406 | IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler) | |
407 | ||
408 | ||
409 | ||
410 | //----------------------------------------------------------------------------- | |
411 | // wxHtmlTagsModule | |
412 | //----------------------------------------------------------------------------- | |
413 | ||
414 | ||
415 | IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule) | |
416 | ||
417 | ||
418 | bool wxHtmlTagsModule::OnInit() | |
419 | { | |
420 | wxHtmlWinParser::AddModule(this); | |
421 | return TRUE; | |
422 | } | |
423 | ||
424 | ||
425 | ||
426 | void wxHtmlTagsModule::OnExit() | |
427 | { | |
428 | wxHtmlWinParser::RemoveModule(this); | |
429 | } | |
430 | #endif | |
431 |