1 ///////////////////////////////////////////////////////////////////////////// 2 // Name: src/html/m_pre.cpp 3 // Purpose: wxHtml module for <PRE> ... </PRE> tag (code citation) 4 // Author: Vaclav Slavik 5 // RCS-ID: $Id: m_pre.cpp 56547 2008-10-28 10:06:32Z VS $ 6 // Copyright: (c) 1999 Vaclav Slavik 7 // Licence: wxWindows licence 8 ///////////////////////////////////////////////////////////////////////////// 9 10 #include "wx/wxprec.h" 11 12 #ifdef __BORLANDC__ 13 #pragma hdrstop 14 #endif 15 16 #if wxUSE_HTML && wxUSE_STREAMS 17 18 #ifndef WXPRECOMP 19 #endif 20 21 #include "wx/html/forcelnk.h" 22 #include "wx/html/m_templ.h" 23 24 #include "wx/html/htmlcell.h" 25 #include "wx/tokenzr.h" 26 #include "wx/encconv.h" 27 FORCE_LINK_ME(m_pre)28FORCE_LINK_ME(m_pre) 29 30 // replaces '\t', ' ' and '\n' with HTML markup: 31 static wxString LINKAGEMODE HtmlizeLinebreaks(const wxString& str) 32 { 33 wxString out; 34 out.reserve(str.length()); // we'll certainly need at least that 35 36 size_t len = str.Len(); 37 38 for (size_t i = 0; i < len; i++) 39 { 40 switch (str[i]) 41 { 42 case wxT('<'): 43 while (i < len && str[i] != wxT('>')) 44 { 45 out << str[i++]; 46 } 47 out << wxT('>'); 48 break; 49 50 // We need to translate any line break into exactly one <br>. 51 // Quoting HTML spec: "A line break is defined to be a carriage 52 // return (
), a line feed (
), or a carriage 53 // return/line feed pair." 54 case wxT('\r'): 55 { 56 size_t j = i + 1; 57 if ( j < len && str[j] == wxT('\n') ) 58 i = j; 59 } 60 // fall through 61 case wxT('\n'): 62 out << wxT("<br>"); 63 break; 64 65 default: 66 out << str[i]; 67 break; 68 } 69 } 70 return out; 71 } 72 73 74 //----------------------------------------------------------------------------- 75 // The list handler: 76 //----------------------------------------------------------------------------- 77 78 79 TAG_HANDLER_BEGIN(PRE, "PRE") TAG_HANDLER_CONSTR(PRE)80 TAG_HANDLER_CONSTR(PRE) { } 81 TAG_HANDLER_PROC(tag)82 TAG_HANDLER_PROC(tag) 83 { 84 wxHtmlContainerCell *c; 85 86 const int fixed = m_WParser->GetFontFixed(); 87 const int italic = m_WParser->GetFontItalic(); 88 const int underlined = m_WParser->GetFontUnderlined(); 89 const int bold = m_WParser->GetFontBold(); 90 const int fsize = m_WParser->GetFontSize(); 91 const wxHtmlWinParser::WhitespaceMode whitespace = 92 m_WParser->GetWhitespaceMode(); 93 94 c = m_WParser->GetContainer(); 95 m_WParser->SetWhitespaceMode(wxHtmlWinParser::Whitespace_Pre); 96 m_WParser->SetFontUnderlined(false); 97 m_WParser->SetFontBold(false); 98 m_WParser->SetFontItalic(false); 99 m_WParser->SetFontFixed(true); 100 m_WParser->SetFontSize(3); 101 c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont())); 102 103 m_WParser->CloseContainer(); 104 c = m_WParser->OpenContainer(); 105 c->SetWidthFloat(tag); 106 c = m_WParser->OpenContainer(); 107 c->SetAlignHor(wxHTML_ALIGN_LEFT); 108 c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP); 109 110 wxString srcMid = m_WParser->GetInnerSource(tag); 111 112 // setting Whitespace_Pre mode takes care of spaces and TABs, but 113 // not linebreaks, so we have to translate them into <br> by 114 // calling HtmlizeLinebreaks() here 115 ParseInnerSource(HtmlizeLinebreaks(srcMid)); 116 117 m_WParser->CloseContainer(); 118 m_WParser->CloseContainer(); 119 c = m_WParser->OpenContainer(); 120 121 m_WParser->SetWhitespaceMode(whitespace); 122 m_WParser->SetFontUnderlined(underlined); 123 m_WParser->SetFontBold(bold); 124 m_WParser->SetFontItalic(italic); 125 m_WParser->SetFontFixed(fixed); 126 m_WParser->SetFontSize(fsize); 127 c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont())); 128 129 return true; 130 } 131 132 TAG_HANDLER_END(PRE) 133 134 135 136 137 138 TAGS_MODULE_BEGIN(Pre) 139 140 TAGS_MODULE_ADD(PRE) 141 142 TAGS_MODULE_END(Pre) 143 144 #endif 145