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 #if (wxVERSION_NUMBER < 2100)
  70     while (tokenizer.HasMoreToken()) {
  71 #else
  72     while (tokenizer.HasMoreTokens()) {
  73 #endif
  74         if (i % 10 == 0) m_Text = (wxString**) realloc(m_Text, sizeof(wxString*) * (i + 10));
  75         tmp = tokenizer.NextToken();
  76         tmp.Replace("&nbsp;", " ", TRUE);
  77         tmp.Replace("&quot;", "\"", TRUE);
  78         tmp.Replace("&lt;", "<", TRUE);
  79         tmp.Replace("&gt;", ">", TRUE);
  80         tmp.Replace("&amp;", "&", TRUE);
  81         tmp.Replace("\t", "        ", TRUE);
  82         tmp.Replace("\r", "", 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(HTML_ALIGN_LEFT);
 132         c -> SetIndent(m_WParser -> GetCharHeight(), HTML_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(0);
 139         c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
 140
 141         {
 142             wxString cit;
 143             cit = m_WParser -> GetSource() -> Mid(tag.GetBeginPos(), tag.GetEndPos1() - tag.GetBeginPos());
 144             c -> InsertCell(new wxHtmlPRECell(cit, *(m_WParser -> GetDC())));
 145         }
 146
 147         m_WParser -> SetFontUnderlined(underlined);
 148         m_WParser -> SetFontBold(bold);
 149         m_WParser -> SetFontItalic(italic);
 150         m_WParser -> SetFontFixed(fixed);
 151         m_WParser -> SetFontSize(fsize);
 152         c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
 153
 154         m_WParser -> CloseContainer();
 155         m_WParser -> OpenContainer();
 156         return TRUE;
 157     }
 158
 159 TAG_HANDLER_END(PRE)
 160
 161
 162
 163
 164
 165 TAGS_MODULE_BEGIN(Pre)
 166
 167     TAGS_MODULE_ADD(PRE)
 168
 169 TAGS_MODULE_END(Pre)
 170
 171 #endif