src/html/m_pre.cpp

   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:      $Id$
   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 WX_PRECOMP
  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
  28 FORCE_LINK_ME(m_pre)
  29
  30 // replaces '\t', ' ' and '\n' with HTML markup:
  31 static wxString LINKAGEMODE HtmlizeWhitespaces(const wxString& str)
  32 {
  33     wxString out;
  34     size_t len = str.Len();
  35     size_t linepos = 0;
  36     for (size_t i = 0; i < len; i++)
  37     {
  38         switch ( str[i].GetValue() )
  39         {
  40             case wxT('<'):
  41                 while (i < len && str[i] != wxT('>'))
  42                 {
  43                     out << str[i++];
  44                 }
  45                 out << wxT('>');
  46                 break;
  47             case wxT(' '):
  48                 out << wxT("&nbsp;");
  49                 linepos++;
  50                 break;
  51             case wxT('\n'):
  52                 out << wxT("<br>");
  53                 linepos = 0;
  54                 break;
  55             case wxT('\t'):
  56                 {
  57                     for (size_t j = 8 - linepos % 8; j > 0; j--)
  58                         out << wxT("&nbsp;");
  59                     linepos += 8 - linepos % 8;
  60                 }
  61                 break;
  62             default:
  63                 out << str[i];
  64                 linepos++;
  65                 break;
  66         }
  67     }
  68     return out;
  69 }
  70
  71
  72 //-----------------------------------------------------------------------------
  73 // The list handler:
  74 //-----------------------------------------------------------------------------
  75
  76
  77 TAG_HANDLER_BEGIN(PRE, "PRE")
  78     TAG_HANDLER_CONSTR(PRE) { }
  79
  80     TAG_HANDLER_PROC(tag)
  81     {
  82         wxHtmlContainerCell *c;
  83
  84         int fixed = m_WParser->GetFontFixed(),
  85             italic = m_WParser->GetFontItalic(),
  86             underlined = m_WParser->GetFontUnderlined(),
  87             bold = m_WParser->GetFontBold(),
  88             fsize = m_WParser->GetFontSize();
  89
  90         c = m_WParser->GetContainer();
  91         m_WParser->SetFontUnderlined(false);
  92         m_WParser->SetFontBold(false);
  93         m_WParser->SetFontItalic(false);
  94         m_WParser->SetFontFixed(true);
  95         m_WParser->SetFontSize(3);
  96         c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
  97
  98         m_WParser->CloseContainer();
  99         c = m_WParser->OpenContainer();
 100         c->SetWidthFloat(tag);
 101         c = m_WParser->OpenContainer();
 102         c->SetAlignHor(wxHTML_ALIGN_LEFT);
 103         c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
 104
 105         wxString srcMid = m_WParser->GetInnerSource(tag);
 106         ParseInnerSource(HtmlizeWhitespaces(srcMid));
 107
 108         m_WParser->CloseContainer();
 109         m_WParser->CloseContainer();
 110         c = m_WParser->OpenContainer();
 111
 112         m_WParser->SetFontUnderlined(underlined);
 113         m_WParser->SetFontBold(bold);
 114         m_WParser->SetFontItalic(italic);
 115         m_WParser->SetFontFixed(fixed);
 116         m_WParser->SetFontSize(fsize);
 117         c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 118
 119         return true;
 120     }
 121
 122 TAG_HANDLER_END(PRE)
 123
 124
 125
 126
 127
 128 TAGS_MODULE_BEGIN(Pre)
 129
 130     TAGS_MODULE_ADD(PRE)
 131
 132 TAGS_MODULE_END(Pre)
 133
 134 #endif