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