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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
41wxList wxHtmlWinParser::m_Modules;
42
43wxHtmlWinParser::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
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 delete m_EncConv;
102 delete[] m_tmpStrBuf;
103}
104
105
106void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module)
107{
108 m_Modules.Append(module);
109}
110
111
112
113void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module)
114{
115 m_Modules.DeleteObject(module);
116}
117
118
119
120void 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
145void 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
174void wxHtmlWinParser::DoneParser()
175{
176 m_Container = NULL;
177 SetInputEncoding(wxFONTENCODING_DEFAULT); // for next call
178 wxHtmlParser::DoneParser();
179}
180
181
182
183wxObject* 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
196void 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
261wxHtmlContainerCell* 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
272wxHtmlContainerCell* 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
281wxHtmlContainerCell* wxHtmlWinParser::CloseContainer()
282{
283 m_Container = m_Container->GetParent();
284 return m_Container;
285}
286
287
288void 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
297wxFont* 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
334void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link)
335{
336 m_Link = link;
337 m_UseLink = (link.GetHref() != wxEmptyString);
338}
339
340
341void 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
352void 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
418IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler)
419
420
421
422//-----------------------------------------------------------------------------
423// wxHtmlTagsModule
424//-----------------------------------------------------------------------------
425
426
427IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule)
428
429
430bool wxHtmlTagsModule::OnInit()
431{
432 wxHtmlWinParser::AddModule(this);
433 return TRUE;
434}
435
436
437
438void wxHtmlTagsModule::OnExit()
439{
440 wxHtmlWinParser::RemoveModule(this);
441}
442#endif
443