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