src/html/mod_pre.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        mod_pre.cpp
   3 // Purpose:     wxHtml module for <PRE> ... </PRE> tag (code citation)
   4 // Author:      Vaclav Slavik
   5 // Copyright:   (c) 1999 Vaclav Slavik
   6 // Licence:     wxWindows Licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 #ifdef __GNUG__
  10 #pragma implementation
  11 #endif
  12
  13 #include <wx/wxprec.h>
  14
  15 #if wxUSE_HTML
  16 #ifdef __BORDLANDC__
  17 #pragma hdrstop
  18 #endif
  19
  20 #ifndef WXPRECOMP
  21 #include <wx/wx.h>
  22 #endif
  23
  24
  25 #include <wx/html/forcelink.h>
  26 #include <wx/html/mod_templ.h>
  27
  28 #include <wx/html/htmlcell.h>
  29 #include <wx/tokenzr.h>
  30
  31 FORCE_LINK_ME(mod_pre)
  32
  33
  34 //-----------------------------------------------------------------------------
  35 // wxHtmlCodeCell
  36 //-----------------------------------------------------------------------------
  37
  38 class wxHtmlPRECell : public wxHtmlCell
  39 {
  40     private:
  41         wxString** m_Text;
  42                 // list of wxString objects.
  43         int m_LinesCnt;
  44                 // number of lines
  45         int m_LineHeight;
  46                 // height of single line of text
  47
  48     public:
  49         wxHtmlPRECell(const wxString& s, wxDC& dc);
  50         ~wxHtmlPRECell();
  51         void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
  52 };
  53
  54
  55 wxHtmlPRECell::wxHtmlPRECell(const wxString& s, wxDC& dc) : wxHtmlCell()
  56 {
  57     wxStringTokenizer tokenizer(s, "\n");
  58     wxString tmp;
  59     long int x, z;
  60     int i;
  61
  62     m_LineHeight = dc.GetCharHeight();
  63     m_LinesCnt = 0;
  64     m_Text = NULL;
  65     m_Width = m_Height = 0;
  66
  67     i = 0;
  68 #if (wxVERSION_NUMBER < 2100)
  69     while (tokenizer.HasMoreToken()) {
  70 #else
  71     while (tokenizer.HasMoreTokens()) {
  72 #endif
  73         if (i % 10 == 0) m_Text = (wxString**) realloc(m_Text, sizeof(wxString*) * (i + 10));
  74         tmp = tokenizer.NextToken();
  75         tmp.Replace("&nbsp;", " ", TRUE);
  76         tmp.Replace("&quot;", "\"", TRUE);
  77         tmp.Replace("&lt;", "<", TRUE);
  78         tmp.Replace("&gt;", ">", TRUE);
  79         tmp.Replace("&amp;", "&", TRUE);
  80         tmp.Replace("\t", "        ", TRUE);
  81         tmp.Replace("\r", "", TRUE);
  82         m_Text[i++] = new wxString(tmp);
  83
  84         dc.GetTextExtent(tmp, &x, &z, &z);
  85         if (x > m_Width) m_Width = x;
  86         m_Height += m_LineHeight;
  87         m_LinesCnt++;
  88     }
  89 }
  90
  91
  92
  93 wxHtmlPRECell::~wxHtmlPRECell()
  94 {
  95     for (int i = 0; i < m_LinesCnt; i++) delete m_Text[i];
  96     free(m_Text);
  97 }
  98
  99
 100 void wxHtmlPRECell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
 101 {
 102     for (int i = 0; i < m_LinesCnt; i++)
 103         dc.DrawText(*(m_Text[i]), x + m_PosX, y + m_PosY + m_LineHeight * i);
 104
 105     wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 106 }
 107
 108
 109
 110
 111 //-----------------------------------------------------------------------------
 112 // The list handler:
 113 //-----------------------------------------------------------------------------
 114
 115
 116 TAG_HANDLER_BEGIN(PRE, "PRE")
 117
 118     TAG_HANDLER_PROC(tag)
 119     {
 120         wxHtmlContainerCell *c;
 121
 122         int fixed = m_WParser -> GetFontFixed(),
 123             italic = m_WParser -> GetFontItalic(),
 124             underlined = m_WParser -> GetFontUnderlined(),
 125             bold = m_WParser -> GetFontBold(),
 126             fsize = m_WParser -> GetFontSize();
 127
 128         m_WParser -> CloseContainer();
 129         c = m_WParser -> OpenContainer();
 130         c -> SetAlignHor(HTML_ALIGN_LEFT);
 131         c -> SetIndent(m_WParser -> GetCharHeight(), HTML_INDENT_VERTICAL);
 132
 133         m_WParser -> SetFontUnderlined(FALSE);
 134         m_WParser -> SetFontBold(FALSE);
 135         m_WParser -> SetFontItalic(FALSE);
 136         m_WParser -> SetFontFixed(TRUE);
 137         m_WParser -> SetFontSize(0);
 138         c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
 139
 140         {
 141             wxString cit;
 142             cit = m_WParser -> GetSource() -> Mid(tag.GetBeginPos(), tag.GetEndPos1() - tag.GetBeginPos());
 143             c -> InsertCell(new wxHtmlPRECell(cit, *(m_WParser -> GetDC())));
 144         }
 145
 146         m_WParser -> SetFontUnderlined(underlined);
 147         m_WParser -> SetFontBold(bold);
 148         m_WParser -> SetFontItalic(italic);
 149         m_WParser -> SetFontFixed(fixed);
 150         m_WParser -> SetFontSize(fsize);
 151         c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
 152
 153         m_WParser -> CloseContainer();
 154         m_WParser -> OpenContainer();
 155         return TRUE;
 156     }
 157
 158 TAG_HANDLER_END(PRE)
 159
 160
 161
 162
 163
 164 TAGS_MODULE_BEGIN(Pre)
 165
 166     TAGS_MODULE_ADD(PRE)
 167
 168 TAGS_MODULE_END(Pre)
 169
 170 #endif