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 && wxUSE_STREAMS
  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     {
  73         if (i % 10 == 0) m_Text = (wxString**) realloc(m_Text, sizeof(wxString*) * (i + 10));
  74         tmp = tokenizer.NextToken();
  75         tmp.Replace(wxT("&copy;"), wxT("(c)"), TRUE);
  76         tmp.Replace(wxT("&nbsp;"), wxT(" "), TRUE);
  77         tmp.Replace(wxT("&quot;"), wxT("\""), TRUE);
  78         tmp.Replace(wxT("&lt;"), wxT("<"), TRUE);
  79         tmp.Replace(wxT("&gt;"), wxT(">"), TRUE);
  80         tmp.Replace(wxT("&amp;"), wxT("&"), TRUE);
  81         tmp.Replace(wxT("\t"), wxT("        "), TRUE);
  82         tmp.Replace(wxT("\r"), wxT(""), TRUE);
  83         m_Text[i++] = new wxString(tmp);
  84
  85         dc.GetTextExtent(tmp, &x, &z, &z);
  86         if (x > m_Width) m_Width = x;
  87         m_Height += m_LineHeight;
  88         m_LinesCnt++;
  89     }
  90 }
  91
  92
  93
  94 wxHtmlPRECell::~wxHtmlPRECell()
  95 {
  96     for (int i = 0; i < m_LinesCnt; i++) delete m_Text[i];
  97     free(m_Text);
  98 }
  99
 100
 101 void wxHtmlPRECell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
 102 {
 103     for (int i = 0; i < m_LinesCnt; i++)
 104         dc.DrawText(*(m_Text[i]), x + m_PosX, y + m_PosY + m_LineHeight * i);
 105
 106     wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 107 }
 108
 109
 110
 111
 112 //-----------------------------------------------------------------------------
 113 // The list handler:
 114 //-----------------------------------------------------------------------------
 115
 116
 117 TAG_HANDLER_BEGIN(PRE, "PRE")
 118
 119     TAG_HANDLER_PROC(tag)
 120     {
 121         wxHtmlContainerCell *c;
 122
 123         int fixed = m_WParser->GetFontFixed(),
 124             italic = m_WParser->GetFontItalic(),
 125             underlined = m_WParser->GetFontUnderlined(),
 126             bold = m_WParser->GetFontBold(),
 127             fsize = m_WParser->GetFontSize();
 128
 129         m_WParser->CloseContainer();
 130         c = m_WParser->OpenContainer();
 131         c->SetAlignHor(wxHTML_ALIGN_LEFT);
 132         c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_VERTICAL);
 133
 134         m_WParser->SetFontUnderlined(FALSE);
 135         m_WParser->SetFontBold(FALSE);
 136         m_WParser->SetFontItalic(FALSE);
 137         m_WParser->SetFontFixed(TRUE);
 138         m_WParser->SetFontSize(3);
 139         c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 140
 141         {
 142             wxString cit;
 143             wxEncodingConverter *encconv = m_WParser->GetEncodingConverter();
 144             cit = m_WParser->GetSource()->Mid(tag.GetBeginPos(),
 145                                        tag.GetEndPos1() - tag.GetBeginPos());
 146             if (encconv)
 147                 c->InsertCell(new wxHtmlPRECell(encconv->Convert(cit),
 148                                                   *(m_WParser->GetDC())));
 149             else
 150                 c->InsertCell(new wxHtmlPRECell(cit,
 151                                                   *(m_WParser->GetDC())));
 152         }
 153
 154         m_WParser->SetFontUnderlined(underlined);
 155         m_WParser->SetFontBold(bold);
 156         m_WParser->SetFontItalic(italic);
 157         m_WParser->SetFontFixed(fixed);
 158         m_WParser->SetFontSize(fsize);
 159         c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
 160
 161         m_WParser->CloseContainer();
 162         m_WParser->OpenContainer();
 163         return TRUE;
 164     }
 165
 166 TAG_HANDLER_END(PRE)
 167
 168
 169
 170
 171
 172 TAGS_MODULE_BEGIN(Pre)
 173
 174     TAGS_MODULE_ADD(PRE)
 175
 176 TAGS_MODULE_END(Pre)
 177
 178 #endif