src/html/m_pre.cpp

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