]> git.saurik.com Git - wxWidgets.git/blame_incremental - src/html/winpars.cpp
Insure suitable choices of path/drive separator on OS/2.
[wxWidgets.git] / src / html / winpars.cpp
... / ...
CommitLineData
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
42wxList wxHtmlWinParser::m_Modules;
43
44wxHtmlWinParser::wxHtmlWinParser(wxHtmlWindow *wnd) : wxHtmlParser()
45{
46 m_tmpStrBuf = NULL;
47 m_tmpStrBufSize = 0;
48 m_Window = wnd;
49 m_Container = NULL;
50 m_DC = NULL;
51 m_CharHeight = m_CharWidth = 0;
52 m_UseLink = FALSE;
53#if !wxUSE_UNICODE
54 m_EncConv = NULL;
55 m_InputEnc = wxFONTENCODING_ISO8859_1;
56 m_OutputEnc = wxFONTENCODING_DEFAULT;
57#endif
58 m_lastWordCell = NULL;
59
60 {
61 int i, j, k, l, m;
62 for (i = 0; i < 2; i++)
63 for (j = 0; j < 2; j++)
64 for (k = 0; k < 2; k++)
65 for (l = 0; l < 2; l++)
66 for (m = 0; m < 7; m++)
67 {
68 m_FontsTable[i][j][k][l][m] = NULL;
69 m_FontsFacesTable[i][j][k][l][m] = wxEmptyString;
70#if !wxUSE_UNICODE
71 m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT;
72#endif
73 }
74
75 SetFonts(wxEmptyString, wxEmptyString, NULL);
76 }
77
78 // fill in wxHtmlParser's tables:
79 wxList::compatibility_iterator node = m_Modules.GetFirst();
80 while (node)
81 {
82 wxHtmlTagsModule *mod = (wxHtmlTagsModule*) node->GetData();
83 mod->FillHandlersTable(this);
84 node = node->GetNext();
85 }
86}
87
88wxHtmlWinParser::~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#if !wxUSE_UNICODE
102 delete m_EncConv;
103#endif
104 delete[] m_tmpStrBuf;
105}
106
107void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module)
108{
109 m_Modules.Append(module);
110}
111
112void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module)
113{
114 m_Modules.DeleteObject(module);
115}
116
117void wxHtmlWinParser::SetFonts(wxString normal_face, wxString fixed_face,
118 const int *sizes)
119{
120 static int default_sizes[7] =
121 {
122 wxHTML_FONT_SIZE_1,
123 wxHTML_FONT_SIZE_2,
124 wxHTML_FONT_SIZE_3,
125 wxHTML_FONT_SIZE_4,
126 wxHTML_FONT_SIZE_5,
127 wxHTML_FONT_SIZE_6,
128 wxHTML_FONT_SIZE_7
129 };
130
131 if (sizes == NULL) sizes = default_sizes;
132
133 int i, j, k, l, m;
134
135 for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
136 m_FontFaceFixed = fixed_face;
137 m_FontFaceNormal = normal_face;
138
139#if !wxUSE_UNICODE
140 SetInputEncoding(m_InputEnc);
141#endif
142
143 for (i = 0; i < 2; i++)
144 for (j = 0; j < 2; j++)
145 for (k = 0; k < 2; k++)
146 for (l = 0; l < 2; l++)
147 for (m = 0; m < 7; m++) {
148 if (m_FontsTable[i][j][k][l][m] != NULL)
149 {
150 delete m_FontsTable[i][j][k][l][m];
151 m_FontsTable[i][j][k][l][m] = NULL;
152 }
153 }
154}
155
156void wxHtmlWinParser::InitParser(const wxString& source)
157{
158 wxHtmlParser::InitParser(source);
159 wxASSERT_MSG(m_DC != NULL, wxT("no DC assigned to wxHtmlWinParser!!"));
160
161 m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE;
162 m_FontSize = 3; //default one
163 CreateCurrentFont(); // we're selecting default font into
164 m_DC->GetTextExtent( wxT("H"), &m_CharWidth, &m_CharHeight);
165 /* NOTE : we're not using GetCharWidth/Height() because
166 of differences under X and win
167 */
168
169 m_UseLink = FALSE;
170 m_Link = wxHtmlLinkInfo( wxT(""), wxT("") );
171 m_LinkColor.Set(0, 0, 0xFF);
172 m_ActualColor.Set(0, 0, 0);
173 m_Align = wxHTML_ALIGN_LEFT;
174 m_tmpLastWasSpace = FALSE;
175 m_lastWordCell = NULL;
176
177 OpenContainer();
178 OpenContainer();
179
180#if !wxUSE_UNICODE
181 wxString charset = ExtractCharsetInformation(source);
182 if (!charset.empty())
183 {
184 wxFontEncoding enc = wxFontMapper::Get()->CharsetToEncoding(charset);
185 if (enc != wxFONTENCODING_SYSTEM)
186 SetInputEncoding(enc);
187 }
188#endif
189
190 m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor));
191 m_Container->InsertCell(
192 new wxHtmlColourCell(GetWindow() ?
193 GetWindow()->GetBackgroundColour() :
194 wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW),
195 wxHTML_CLR_BACKGROUND));
196 m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont()));
197}
198
199void wxHtmlWinParser::DoneParser()
200{
201 m_Container = NULL;
202#if !wxUSE_UNICODE
203 SetInputEncoding(wxFONTENCODING_ISO8859_1); // for next call
204#endif
205 wxHtmlParser::DoneParser();
206}
207
208wxObject* wxHtmlWinParser::GetProduct()
209{
210 wxHtmlContainerCell *top;
211
212 CloseContainer();
213 OpenContainer();
214
215 top = m_Container;
216 while (top->GetParent()) top = top->GetParent();
217 top->RemoveExtraSpacing(true, true);
218
219 return top;
220}
221
222wxFSFile *wxHtmlWinParser::OpenURL(wxHtmlURLType type,
223 const wxString& url) const
224{
225 // FIXME - normalize the URL to full path before passing to
226 // OnOpeningURL!!
227 if ( m_Window )
228 {
229 wxString myurl(url);
230 wxHtmlOpeningStatus status;
231 for (;;)
232 {
233 wxString redirect;
234 status = m_Window->OnOpeningURL(type, myurl, &redirect);
235 if ( status != wxHTML_REDIRECT )
236 break;
237
238 myurl = redirect;
239 }
240
241 if ( status == wxHTML_BLOCK )
242 return NULL;
243
244 return GetFS()->OpenFile(myurl);
245 }
246
247 return wxHtmlParser::OpenURL(type, url);
248}
249
250void wxHtmlWinParser::AddText(const wxChar* txt)
251{
252 wxHtmlCell *c;
253 size_t i = 0,
254 x,
255 lng = wxStrlen(txt);
256 register wxChar d;
257 int templen = 0;
258 wxChar nbsp = GetEntitiesParser()->GetCharForCode(160 /* nbsp */);
259
260 if (lng+1 > m_tmpStrBufSize)
261 {
262 delete[] m_tmpStrBuf;
263 m_tmpStrBuf = new wxChar[lng+1];
264 m_tmpStrBufSize = lng+1;
265 }
266 wxChar *temp = m_tmpStrBuf;
267
268 if (m_tmpLastWasSpace)
269 {
270 while ((i < lng) &&
271 ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || (txt[i] == wxT(' ')) ||
272 (txt[i] == wxT('\t')))) i++;
273 }
274
275 while (i < lng)
276 {
277 x = 0;
278 d = temp[templen++] = txt[i];
279 if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t')))
280 {
281 i++, x++;
282 while ((i < lng) && ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) ||
283 (txt[i] == wxT(' ')) || (txt[i] == wxT('\t')))) i++, x++;
284 }
285 else i++;
286
287 if (x)
288 {
289 temp[templen-1] = wxT(' ');
290 temp[templen] = 0;
291 templen = 0;
292#if !wxUSE_UNICODE
293 if (m_EncConv)
294 m_EncConv->Convert(temp);
295#endif
296 size_t len = wxStrlen(temp);
297 for (size_t j = 0; j < len; j++)
298 if (temp[j] == nbsp)
299 temp[j] = wxT(' ');
300 c = new wxHtmlWordCell(temp, *(GetDC()));
301 if (m_UseLink)
302 c->SetLink(m_Link);
303 m_Container->InsertCell(c);
304 ((wxHtmlWordCell*)c)->SetPreviousWord(m_lastWordCell);
305 m_lastWordCell = (wxHtmlWordCell*)c;
306 m_tmpLastWasSpace = TRUE;
307 }
308 }
309
310 if (templen && (templen > 1 || temp[0] != wxT(' ')))
311 {
312 temp[templen] = 0;
313#if !wxUSE_UNICODE
314 if (m_EncConv)
315 m_EncConv->Convert(temp);
316#endif
317 size_t len = wxStrlen(temp);
318 for (size_t j = 0; j < len; j++)
319 if (temp[j] == nbsp)
320 temp[j] = wxT(' ');
321 c = new wxHtmlWordCell(temp, *(GetDC()));
322 if (m_UseLink)
323 c->SetLink(m_Link);
324 m_Container->InsertCell(c);
325 ((wxHtmlWordCell*)c)->SetPreviousWord(m_lastWordCell);
326 m_lastWordCell = (wxHtmlWordCell*)c;
327 m_tmpLastWasSpace = FALSE;
328 }
329}
330
331
332
333wxHtmlContainerCell* wxHtmlWinParser::OpenContainer()
334{
335 m_Container = new wxHtmlContainerCell(m_Container);
336 m_Container->SetAlignHor(m_Align);
337 m_tmpLastWasSpace = TRUE;
338 /* to avoid space being first character in paragraph */
339 return m_Container;
340}
341
342
343
344wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c)
345{
346 m_tmpLastWasSpace = TRUE;
347 /* to avoid space being first character in paragraph */
348 return m_Container = c;
349}
350
351
352
353wxHtmlContainerCell* wxHtmlWinParser::CloseContainer()
354{
355 m_Container = m_Container->GetParent();
356 return m_Container;
357}
358
359
360void wxHtmlWinParser::SetFontSize(int s)
361{
362 if (s < 1) s = 1;
363 else if (s > 7) s = 7;
364 m_FontSize = s;
365}
366
367
368
369wxFont* wxHtmlWinParser::CreateCurrentFont()
370{
371 int fb = GetFontBold(),
372 fi = GetFontItalic(),
373 fu = GetFontUnderlined(),
374 ff = GetFontFixed(),
375 fs = GetFontSize() - 1 /*remap from <1;7> to <0;6>*/ ;
376
377 wxString face = ff ? m_FontFaceFixed : m_FontFaceNormal;
378 wxString *faceptr = &(m_FontsFacesTable[fb][fi][fu][ff][fs]);
379 wxFont **fontptr = &(m_FontsTable[fb][fi][fu][ff][fs]);
380#if !wxUSE_UNICODE
381 wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]);
382#endif
383
384 if (*fontptr != NULL && (*faceptr != face
385#if !wxUSE_UNICODE
386 || *encptr != m_OutputEnc
387#endif
388 ))
389 {
390 delete *fontptr;
391 *fontptr = NULL;
392 }
393
394 if (*fontptr == NULL)
395 {
396 *faceptr = face;
397 *fontptr = new wxFont(
398 (int) (m_FontsSizes[fs] * m_PixelScale),
399 ff ? wxMODERN : wxSWISS,
400 fi ? wxITALIC : wxNORMAL,
401 fb ? wxBOLD : wxNORMAL,
402 fu ? TRUE : FALSE, face
403#if wxUSE_UNICODE
404 );
405#else
406 , m_OutputEnc);
407 *encptr = m_OutputEnc;
408#endif
409 }
410 m_DC->SetFont(**fontptr);
411 return (*fontptr);
412}
413
414
415
416void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link)
417{
418 m_Link = link;
419 m_UseLink = (link.GetHref() != wxEmptyString);
420}
421
422
423void wxHtmlWinParser::SetFontFace(const wxString& face)
424{
425 if (GetFontFixed()) m_FontFaceFixed = face;
426 else m_FontFaceNormal = face;
427
428#if !wxUSE_UNICODE
429 if (m_InputEnc != wxFONTENCODING_DEFAULT)
430 SetInputEncoding(m_InputEnc);
431#endif
432}
433
434
435
436#if !wxUSE_UNICODE
437void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc)
438{
439 m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
440 if (m_EncConv)
441 {
442 delete m_EncConv;
443 m_EncConv = NULL;
444 }
445
446 if (enc == wxFONTENCODING_DEFAULT) return;
447
448 wxFontEncoding altfix, altnorm;
449 bool availfix, availnorm;
450
451 // exact match?
452 availnorm = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceNormal);
453 availfix = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceFixed);
454 if (availnorm && availfix)
455 m_OutputEnc = enc;
456
457 // alternatives?
458 else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE) &&
459 wxFontMapper::Get()->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, FALSE) &&
460 altnorm == altfix)
461 m_OutputEnc = altnorm;
462
463 // at least normal face?
464 else if (availnorm)
465 m_OutputEnc = enc;
466 else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE))
467 m_OutputEnc = altnorm;
468
469 // okay, let convert to ISO_8859-1, available always
470 else
471 m_OutputEnc = wxFONTENCODING_DEFAULT;
472
473 m_InputEnc = enc;
474 if (m_OutputEnc == wxFONTENCODING_DEFAULT)
475 GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM);
476 else
477 GetEntitiesParser()->SetEncoding(m_OutputEnc);
478
479 if (m_InputEnc == m_OutputEnc) return;
480
481 m_EncConv = new wxEncodingConverter();
482 if (!m_EncConv->Init(m_InputEnc,
483 (m_OutputEnc == wxFONTENCODING_DEFAULT) ?
484 wxFONTENCODING_ISO8859_1 : m_OutputEnc,
485 wxCONVERT_SUBSTITUTE))
486 { // total failture :-(
487 wxLogError(_("Failed to display HTML document in %s encoding"),
488 wxFontMapper::GetEncodingName(enc).c_str());
489 m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
490 delete m_EncConv;
491 m_EncConv = NULL;
492 }
493}
494#endif
495
496
497
498
499//-----------------------------------------------------------------------------
500// wxHtmlWinTagHandler
501//-----------------------------------------------------------------------------
502
503IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler)
504
505//-----------------------------------------------------------------------------
506// wxHtmlTagsModule
507//-----------------------------------------------------------------------------
508
509// NB: This is *NOT* winpars.cpp's initialization and shutdown code!!
510// This module is an ancestor for tag handlers modules defined
511// in m_*.cpp files with TAGS_MODULE_BEGIN...TAGS_MODULE_END construct.
512//
513// Do not add any winpars.cpp shutdown or initialization code to it,
514// create a new module instead!
515
516IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule)
517
518bool wxHtmlTagsModule::OnInit()
519{
520 wxHtmlWinParser::AddModule(this);
521 return TRUE;
522}
523
524void wxHtmlTagsModule::OnExit()
525{
526 wxHtmlWinParser::RemoveModule(this);
527}
528
529#endif
530