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 #include "wx/encconv.h"
  33
  34 FORCE_LINK_ME(m_pre)
  35
  36
  37 //-----------------------------------------------------------------------------
  38 // wxHtmlCodeCell
  39 //-----------------------------------------------------------------------------
  40
  41 class wxHtmlPRECell : public wxHtmlCell
  42 {
  43     private:
  44         wxString** m_Text;
  45                 // list of wxString objects.
  46         int m_LinesCnt;
  47                 // number of lines
  48         int m_LineHeight;
  49                 // height of single line of text
  50
  51     public:
  52         wxHtmlPRECell(const wxString& s, wxDC& dc);
  53         ~wxHtmlPRECell();
  54         void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
  55 };
  56
  57
  58 wxHtmlPRECell::wxHtmlPRECell(const wxString& s, wxDC& dc) : wxHtmlCell()
  59 {
  60     wxStringTokenizer tokenizer(s, "\n");
  61     wxString tmp;
  62     long int x, z;
  63     int i;
  64
  65     m_LineHeight = dc.GetCharHeight();
  66     m_LinesCnt = 0;
  67     m_Text = NULL;
  68     m_Width = m_Height = 0;
  69
  70     i = 0;
  71     while (tokenizer.HasMoreTokens()) {
  72         if (i % 10 == 0) m_Text = (wxString**) realloc(m_Text, sizeof(wxString*) * (i + 10));
  73         tmp = tokenizer.NextToken();
  74         tmp.Replace(wxT("&copy;"), wxT("(c)"), TRUE);
  75         tmp.Replace(wxT("&nbsp;"), wxT(" "), TRUE);
  76         tmp.Replace(wxT("&quot;"), wxT("\""), TRUE);
  77         tmp.Replace(wxT("&lt;"), wxT("<"), TRUE);
  78         tmp.Replace(wxT("&gt;"), wxT(">"), TRUE);
  79         tmp.Replace(wxT("&amp;"), wxT("&"), TRUE);
  80         tmp.Replace(wxT("\t"), wxT("        "), TRUE);
  81         tmp.Replace(wxT("\r"), wxT(""), 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(wxHTML_ALIGN_LEFT);
 131         c -> SetIndent(m_WParser -> GetCharHeight(), wxHTML_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(3);
 138         c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
 139
 140         {
 141             wxString cit;
 142             wxEncodingConverter *encconv = m_WParser -> GetEncodingConverter();
 143             cit = m_WParser -> GetSource() -> Mid(tag.GetBeginPos(),
 144                                        tag.GetEndPos1() - tag.GetBeginPos());
 145             if (encconv)
 146                 c -> InsertCell(new wxHtmlPRECell(encconv -> Convert(cit),
 147                                                   *(m_WParser -> GetDC())));
 148             else
 149                 c -> InsertCell(new wxHtmlPRECell(cit,
 150                                                   *(m_WParser -> GetDC())));
 151         }
 152
 153         m_WParser -> SetFontUnderlined(underlined);
 154         m_WParser -> SetFontBold(bold);
 155         m_WParser -> SetFontItalic(italic);
 156         m_WParser -> SetFontFixed(fixed);
 157         m_WParser -> SetFontSize(fsize);
 158         c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
 159
 160         m_WParser -> CloseContainer();
 161         m_WParser -> OpenContainer();
 162         return TRUE;
 163     }
 164
 165 TAG_HANDLER_END(PRE)
 166
 167
 168
 169
 170
 171 TAGS_MODULE_BEGIN(Pre)
 172
 173     TAGS_MODULE_ADD(PRE)
 174
 175 TAGS_MODULE_END(Pre)
 176
 177 #endif