///////////////////////////////////////////////////////////////////////////// // Name: winpars.cpp // Purpose: wxHtmlParser class (generic parser) // Author: Vaclav Slavik // RCS-ID: $Id$ // Copyright: (c) 1999 Vaclav Slavik // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "winpars.h" #endif #include "wx/wxprec.h" #include "wx/defs.h" #if wxUSE_HTML && wxUSE_STREAMS #ifdef __BORLANDC__ #pragma hdrstop #endif #ifndef WXPRECOMP #include "wx/intl.h" #include "wx/dc.h" #endif #include "wx/html/htmldefs.h" #include "wx/html/winpars.h" #include "wx/html/htmlwin.h" #include "wx/fontmap.h" #include "wx/log.h" #include "wx/settings.h" //----------------------------------------------------------------------------- // wxHtmlWinParser //----------------------------------------------------------------------------- IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinParser, wxHtmlParser) wxList wxHtmlWinParser::m_Modules; wxHtmlWinParser::wxHtmlWinParser(wxHtmlWindow *wnd) : wxHtmlParser() { m_tmpStrBuf = NULL; m_tmpStrBufSize = 0; m_Window = wnd; m_Container = NULL; m_DC = NULL; m_CharHeight = m_CharWidth = 0; m_UseLink = FALSE; #if !wxUSE_UNICODE m_EncConv = NULL; m_InputEnc = wxFONTENCODING_ISO8859_1; m_OutputEnc = wxFONTENCODING_DEFAULT; #endif m_lastWordCell = NULL; { int i, j, k, l, m; for (i = 0; i < 2; i++) for (j = 0; j < 2; j++) for (k = 0; k < 2; k++) for (l = 0; l < 2; l++) for (m = 0; m < 7; m++) { m_FontsTable[i][j][k][l][m] = NULL; m_FontsFacesTable[i][j][k][l][m] = wxEmptyString; #if !wxUSE_UNICODE m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT; #endif } SetFonts(wxEmptyString, wxEmptyString, NULL); } // fill in wxHtmlParser's tables: wxList::compatibility_iterator node = m_Modules.GetFirst(); while (node) { wxHtmlTagsModule *mod = (wxHtmlTagsModule*) node->GetData(); mod->FillHandlersTable(this); node = node->GetNext(); } } wxHtmlWinParser::~wxHtmlWinParser() { int i, j, k, l, m; for (i = 0; i < 2; i++) for (j = 0; j < 2; j++) for (k = 0; k < 2; k++) for (l = 0; l < 2; l++) for (m = 0; m < 7; m++) { if (m_FontsTable[i][j][k][l][m] != NULL) delete m_FontsTable[i][j][k][l][m]; } #if !wxUSE_UNICODE delete m_EncConv; #endif delete[] m_tmpStrBuf; } void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module) { m_Modules.Append(module); } void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module) { m_Modules.DeleteObject(module); } void wxHtmlWinParser::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes) { static int default_sizes[7] = { wxHTML_FONT_SIZE_1, wxHTML_FONT_SIZE_2, wxHTML_FONT_SIZE_3, wxHTML_FONT_SIZE_4, wxHTML_FONT_SIZE_5, wxHTML_FONT_SIZE_6, wxHTML_FONT_SIZE_7 }; if (sizes == NULL) sizes = default_sizes; int i, j, k, l, m; for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i]; m_FontFaceFixed = fixed_face; m_FontFaceNormal = normal_face; #if !wxUSE_UNICODE SetInputEncoding(m_InputEnc); #endif for (i = 0; i < 2; i++) for (j = 0; j < 2; j++) for (k = 0; k < 2; k++) for (l = 0; l < 2; l++) for (m = 0; m < 7; m++) { if (m_FontsTable[i][j][k][l][m] != NULL) { delete m_FontsTable[i][j][k][l][m]; m_FontsTable[i][j][k][l][m] = NULL; } } } void wxHtmlWinParser::NormalizeFontSizes(int size) { int f_sizes[7]; if (size == -1) size = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT).GetPointSize(); f_sizes[0] = int(size * 0.6); f_sizes[1] = int(size * 0.8); f_sizes[2] = size; f_sizes[3] = int(size * 1.2); f_sizes[4] = int(size * 1.4); f_sizes[5] = int(size * 1.6); f_sizes[6] = int(size * 1.8); SetFonts(wxEmptyString, wxEmptyString, f_sizes); } void wxHtmlWinParser::InitParser(const wxString& source) { wxHtmlParser::InitParser(source); wxASSERT_MSG(m_DC != NULL, wxT("no DC assigned to wxHtmlWinParser!!")); m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE; m_FontSize = 3; //default one CreateCurrentFont(); // we're selecting default font into m_DC->GetTextExtent( wxT("H"), &m_CharWidth, &m_CharHeight); /* NOTE : we're not using GetCharWidth/Height() because of differences under X and win */ m_UseLink = FALSE; m_Link = wxHtmlLinkInfo( wxT(""), wxT("") ); m_LinkColor.Set(0, 0, 0xFF); m_ActualColor.Set(0, 0, 0); m_Align = wxHTML_ALIGN_LEFT; m_tmpLastWasSpace = FALSE; m_lastWordCell = NULL; OpenContainer(); OpenContainer(); #if !wxUSE_UNICODE wxString charset = ExtractCharsetInformation(source); if (!charset.empty()) { wxFontEncoding enc = wxFontMapper::Get()->CharsetToEncoding(charset); if (enc != wxFONTENCODING_SYSTEM) SetInputEncoding(enc); } #endif m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor)); wxColour windowColour = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW) ; m_Container->InsertCell( new wxHtmlColourCell(GetWindow() ? GetWindow()->GetBackgroundColour() : windowColour, wxHTML_CLR_BACKGROUND)); m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont())); } void wxHtmlWinParser::DoneParser() { m_Container = NULL; #if !wxUSE_UNICODE SetInputEncoding(wxFONTENCODING_ISO8859_1); // for next call #endif wxHtmlParser::DoneParser(); } wxObject* wxHtmlWinParser::GetProduct() { wxHtmlContainerCell *top; CloseContainer(); OpenContainer(); top = m_Container; while (top->GetParent()) top = top->GetParent(); top->RemoveExtraSpacing(true, true); return top; } wxFSFile *wxHtmlWinParser::OpenURL(wxHtmlURLType type, const wxString& url) const { // FIXME - normalize the URL to full path before passing to // OnOpeningURL!! if ( m_Window ) { wxString myurl(url); wxHtmlOpeningStatus status; for (;;) { wxString redirect; status = m_Window->OnOpeningURL(type, myurl, &redirect); if ( status != wxHTML_REDIRECT ) break; myurl = redirect; } if ( status == wxHTML_BLOCK ) return NULL; return GetFS()->OpenFile(myurl); } return wxHtmlParser::OpenURL(type, url); } void wxHtmlWinParser::AddText(const wxChar* txt) { wxHtmlCell *c; size_t i = 0, x, lng = wxStrlen(txt); register wxChar d; int templen = 0; wxChar nbsp = GetEntitiesParser()->GetCharForCode(160 /* nbsp */); if (lng+1 > m_tmpStrBufSize) { delete[] m_tmpStrBuf; m_tmpStrBuf = new wxChar[lng+1]; m_tmpStrBufSize = lng+1; } wxChar *temp = m_tmpStrBuf; if (m_tmpLastWasSpace) { while ((i < lng) && ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || (txt[i] == wxT(' ')) || (txt[i] == wxT('\t')))) i++; } while (i < lng) { x = 0; d = temp[templen++] = txt[i]; if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t'))) { i++, x++; while ((i < lng) && ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || (txt[i] == wxT(' ')) || (txt[i] == wxT('\t')))) i++, x++; } else i++; if (x) { temp[templen-1] = wxT(' '); temp[templen] = 0; templen = 0; #if !wxUSE_UNICODE if (m_EncConv) m_EncConv->Convert(temp); #endif size_t len = wxStrlen(temp); for (size_t j = 0; j < len; j++) if (temp[j] == nbsp) temp[j] = wxT(' '); c = new wxHtmlWordCell(temp, *(GetDC())); if (m_UseLink) c->SetLink(m_Link); m_Container->InsertCell(c); ((wxHtmlWordCell*)c)->SetPreviousWord(m_lastWordCell); m_lastWordCell = (wxHtmlWordCell*)c; m_tmpLastWasSpace = TRUE; } } if (templen && (templen > 1 || temp[0] != wxT(' '))) { temp[templen] = 0; #if !wxUSE_UNICODE if (m_EncConv) m_EncConv->Convert(temp); #endif size_t len = wxStrlen(temp); for (size_t j = 0; j < len; j++) if (temp[j] == nbsp) temp[j] = wxT(' '); c = new wxHtmlWordCell(temp, *(GetDC())); if (m_UseLink) c->SetLink(m_Link); m_Container->InsertCell(c); ((wxHtmlWordCell*)c)->SetPreviousWord(m_lastWordCell); m_lastWordCell = (wxHtmlWordCell*)c; m_tmpLastWasSpace = FALSE; } } wxHtmlContainerCell* wxHtmlWinParser::OpenContainer() { m_Container = new wxHtmlContainerCell(m_Container); m_Container->SetAlignHor(m_Align); m_tmpLastWasSpace = TRUE; /* to avoid space being first character in paragraph */ return m_Container; } wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c) { m_tmpLastWasSpace = TRUE; /* to avoid space being first character in paragraph */ return m_Container = c; } wxHtmlContainerCell* wxHtmlWinParser::CloseContainer() { m_Container = m_Container->GetParent(); return m_Container; } void wxHtmlWinParser::SetFontSize(int s) { if (s < 1) s = 1; else if (s > 7) s = 7; m_FontSize = s; } wxFont* wxHtmlWinParser::CreateCurrentFont() { int fb = GetFontBold(), fi = GetFontItalic(), fu = GetFontUnderlined(), ff = GetFontFixed(), fs = GetFontSize() - 1 /*remap from <1;7> to <0;6>*/ ; wxString face = ff ? m_FontFaceFixed : m_FontFaceNormal; wxString *faceptr = &(m_FontsFacesTable[fb][fi][fu][ff][fs]); wxFont **fontptr = &(m_FontsTable[fb][fi][fu][ff][fs]); #if !wxUSE_UNICODE wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]); #endif if (*fontptr != NULL && (*faceptr != face #if !wxUSE_UNICODE || *encptr != m_OutputEnc #endif )) { delete *fontptr; *fontptr = NULL; } if (*fontptr == NULL) { *faceptr = face; *fontptr = new wxFont( (int) (m_FontsSizes[fs] * m_PixelScale), ff ? wxMODERN : wxSWISS, fi ? wxITALIC : wxNORMAL, fb ? wxBOLD : wxNORMAL, fu ? TRUE : FALSE, face #if wxUSE_UNICODE ); #else , m_OutputEnc); *encptr = m_OutputEnc; #endif } m_DC->SetFont(**fontptr); return (*fontptr); } void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link) { m_Link = link; m_UseLink = (link.GetHref() != wxEmptyString); } void wxHtmlWinParser::SetFontFace(const wxString& face) { if (GetFontFixed()) m_FontFaceFixed = face; else m_FontFaceNormal = face; #if !wxUSE_UNICODE if (m_InputEnc != wxFONTENCODING_DEFAULT) SetInputEncoding(m_InputEnc); #endif } #if !wxUSE_UNICODE void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc) { m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; if (m_EncConv) { delete m_EncConv; m_EncConv = NULL; } if (enc == wxFONTENCODING_DEFAULT) return; wxFontEncoding altfix, altnorm; bool availfix, availnorm; // exact match? availnorm = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceNormal); availfix = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceFixed); if (availnorm && availfix) m_OutputEnc = enc; // alternatives? else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE) && wxFontMapper::Get()->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, FALSE) && altnorm == altfix) m_OutputEnc = altnorm; // at least normal face? else if (availnorm) m_OutputEnc = enc; else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE)) m_OutputEnc = altnorm; else { #ifndef __WXMAC__ // okay, let convert to ISO_8859-1, available always m_OutputEnc = wxFONTENCODING_DEFAULT; #else m_OutputEnc = wxLocale::GetSystemEncoding() ; #endif } m_InputEnc = enc; if (m_OutputEnc == wxFONTENCODING_DEFAULT) GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM); else GetEntitiesParser()->SetEncoding(m_OutputEnc); if (m_InputEnc == m_OutputEnc) return; m_EncConv = new wxEncodingConverter(); if (!m_EncConv->Init(m_InputEnc, (m_OutputEnc == wxFONTENCODING_DEFAULT) ? wxFONTENCODING_ISO8859_1 : m_OutputEnc, wxCONVERT_SUBSTITUTE)) { // total failture :-( wxLogError(_("Failed to display HTML document in %s encoding"), wxFontMapper::GetEncodingName(enc).c_str()); m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT; delete m_EncConv; m_EncConv = NULL; } } #endif //----------------------------------------------------------------------------- // wxHtmlWinTagHandler //----------------------------------------------------------------------------- IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler) //----------------------------------------------------------------------------- // wxHtmlTagsModule //----------------------------------------------------------------------------- // NB: This is *NOT* winpars.cpp's initialization and shutdown code!! // This module is an ancestor for tag handlers modules defined // in m_*.cpp files with TAGS_MODULE_BEGIN...TAGS_MODULE_END construct. // // Do not add any winpars.cpp shutdown or initialization code to it, // create a new module instead! IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule) bool wxHtmlTagsModule::OnInit() { wxHtmlWinParser::AddModule(this); return TRUE; } void wxHtmlTagsModule::OnExit() { wxHtmlWinParser::RemoveModule(this); } #endif