src/html/m_pre.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #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(m_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(wxT("&copy;"), wxT("(c)"), TRUE);
  74         tmp.Replace(wxT("&nbsp;"), wxT(" "), TRUE);
  75         tmp.Replace(wxT("&quot;"), wxT("\""), TRUE);
  76         tmp.Replace(wxT("&lt;"), wxT("<"), TRUE);
  77         tmp.Replace(wxT("&gt;"), wxT(">"), TRUE);
  78         tmp.Replace(wxT("&amp;"), wxT("&"), TRUE);
  79         tmp.Replace(wxT("\t"), wxT("        "), TRUE);
  80         tmp.Replace(wxT("\r"), wxT(""), TRUE);
  81         m_Text[i++] = new wxString(tmp);
  82
  83         dc.GetTextExtent(tmp, &x, &z, &z);
  84         if (x > m_Width) m_Width = x;
  85         m_Height += m_LineHeight;
  86         m_LinesCnt++;
  87     }
  88 }
  89
  90
  91
  92 wxHtmlPRECell::~wxHtmlPRECell()
  93 {
  94     for (int i = 0; i < m_LinesCnt; i++) delete m_Text[i];
  95     free(m_Text);
  96 }
  97
  98
  99 void wxHtmlPRECell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
 100 {
 101     for (int i = 0; i < m_LinesCnt; i++)
 102         dc.DrawText(*(m_Text[i]), x + m_PosX, y + m_PosY + m_LineHeight * i);
 103
 104     wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 105 }
 106
 107
 108
 109
 110 //-----------------------------------------------------------------------------
 111 // The list handler:
 112 //-----------------------------------------------------------------------------
 113
 114
 115 TAG_HANDLER_BEGIN(PRE, "PRE")
 116
 117     TAG_HANDLER_PROC(tag)
 118     {
 119         wxHtmlContainerCell *c;
 120
 121         int fixed = m_WParser -> GetFontFixed(),
 122             italic = m_WParser -> GetFontItalic(),
 123             underlined = m_WParser -> GetFontUnderlined(),
 124             bold = m_WParser -> GetFontBold(),
 125             fsize = m_WParser -> GetFontSize();
 126
 127         m_WParser -> CloseContainer();
 128         c = m_WParser -> OpenContainer();
 129         c -> SetAlignHor(wxHTML_ALIGN_LEFT);
 130         c -> SetIndent(m_WParser -> GetCharHeight(), wxHTML_INDENT_VERTICAL);
 131
 132         m_WParser -> SetFontUnderlined(FALSE);
 133         m_WParser -> SetFontBold(FALSE);
 134         m_WParser -> SetFontItalic(FALSE);
 135         m_WParser -> SetFontFixed(TRUE);
 136         m_WParser -> SetFontSize(3);
 137         c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
 138
 139         {
 140             wxString cit;
 141             cit = m_WParser -> GetSource() -> Mid(tag.GetBeginPos(), tag.GetEndPos1() - tag.GetBeginPos());
 142             c -> InsertCell(new wxHtmlPRECell(cit, *(m_WParser -> GetDC())));
 143         }
 144
 145         m_WParser -> SetFontUnderlined(underlined);
 146         m_WParser -> SetFontBold(bold);
 147         m_WParser -> SetFontItalic(italic);
 148         m_WParser -> SetFontFixed(fixed);
 149         m_WParser -> SetFontSize(fsize);
 150         c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
 151
 152         m_WParser -> CloseContainer();
 153         m_WParser -> OpenContainer();
 154         return TRUE;
 155     }
 156
 157 TAG_HANDLER_END(PRE)
 158
 159
 160
 161
 162
 163 TAGS_MODULE_BEGIN(Pre)
 164
 165     TAGS_MODULE_ADD(PRE)
 166
 167 TAGS_MODULE_END(Pre)
 168
 169 #endif