src/exporter.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2000 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include <algorithm>
  18
  19 #include "exporter.h"
  20 #include "buffer.h"
  21 #include "lyx_cb.h" //ShowMessage()
  22 #include "support/filetools.h"
  23 #include "lyxrc.h"
  24 #include "converter.h"
  25 #include "lyx_gui_misc.h" //WriteAlert
  26
  27 using std::vector;
  28 using std::find;
  29
  30 bool Exporter::Export(Buffer * buffer, string const & format,
  31                       bool put_in_tempdir, string & result_file)
  32 {
  33         string backend_format;
  34         vector<string> backends = Backends(buffer);
  35         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  36                 for (vector<string>::const_iterator it = backends.begin();
  37                      it != backends.end(); ++it) {
  38                         Converters::EdgePath p =
  39                                 converters.GetPath(*it, format);
  40                         if (!p.empty()) {
  41                                 lyxrc.pdf_mode = converters.UsePdflatex(p);
  42                                 backend_format = *it;
  43                                 break;
  44                         }
  45                 }
  46                 if (backend_format.empty()) {
  47                         WriteAlert(_("Can not export file"),
  48                                    _("No information for exporting to ")
  49                                    + formats.PrettyName(format));
  50                         return false;
  51                 }
  52         } else
  53                 backend_format = format;
  54
  55         string filename = buffer->getLatexName(false);
  56         if (!buffer->tmppath.empty())
  57                 filename = AddName(buffer->tmppath, filename);
  58         filename = ChangeExtension(filename,
  59                                    formats.Extension(backend_format));
  60
  61         // Ascii backend
  62         if (backend_format == "text")
  63                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  64         // Linuxdoc backend
  65         else if (buffer->isLinuxDoc())
  66                 buffer->makeLinuxDocFile(filename, true);
  67         // Docbook backend
  68         else if (buffer->isDocBook())
  69                 buffer->makeDocBookFile(filename, true);
  70         // LaTeX backend
  71         else if (backend_format == format)
  72                 buffer->makeLaTeXFile(filename, string(), true);
  73         else
  74                 buffer->makeLaTeXFile(filename, buffer->filepath, false);
  75
  76         string outfile_base = (put_in_tempdir)
  77                 ? filename : buffer->getLatexName(false);
  78
  79         if (!converters.Convert(buffer, filename, outfile_base,
  80                                 backend_format, format, result_file))
  81                 return false;
  82
  83         if (!put_in_tempdir)
  84                 ShowMessage(buffer,
  85                             _("Document exported as ")
  86                             + formats.PrettyName(format)
  87                             + _(" to file `")
  88                             + MakeDisplayPath(result_file) +'\'');
  89         return true;
  90 }
  91
  92 bool Exporter::Export(Buffer * buffer, string const & format,
  93                       bool put_in_tempdir)
  94 {
  95         string result_file;
  96         return Export(buffer, format, put_in_tempdir, result_file);
  97 }
  98
  99 bool Exporter::Preview(Buffer * buffer, string const & format)
 100 {
 101         string result_file;
 102         if (!Export(buffer, format, true, result_file))
 103                 return false;
 104         return formats.View(buffer, result_file, format);
 105 }
 106
 107
 108 bool Exporter::IsExportable(Buffer const * buffer, string const & format)
 109 {
 110         vector<string> backends = Backends(buffer);
 111         for (vector<string>::const_iterator it = backends.begin();
 112              it != backends.end(); ++it)
 113                 if (converters.IsReachable(*it, format))
 114                         return true;
 115         return false;
 116 }
 117
 118
 119 vector<Format const *> const
 120 Exporter::GetExportableFormats(Buffer const * buffer, bool only_viewable)
 121 {
 122         vector<string> backends = Backends(buffer);
 123         vector<Format const *> result =
 124                 converters.GetReachable(backends[0], only_viewable, true);
 125         for (vector<string>::const_iterator it = backends.begin() + 1;
 126              it != backends.end(); ++it) {
 127                 vector<Format const *>  r =
 128                         converters.GetReachable(*it, only_viewable, false);
 129                 result.insert(result.end(), r.begin(), r.end());
 130         }
 131         return result;
 132 }
 133
 134
 135 string const Exporter::BufferFormat(Buffer const * buffer)
 136 {
 137         if (buffer->isLinuxDoc())
 138                 return "linuxdoc";
 139         else if (buffer->isDocBook())
 140                 return "docbook";
 141         else if (buffer->isLiterate())
 142                 return "literate";
 143         else
 144                 return "latex";
 145 }
 146
 147 vector<string> const Exporter::Backends(Buffer const * buffer)
 148 {
 149         vector<string> v;
 150         v.push_back(BufferFormat(buffer));
 151         v.push_back("text");
 152         return v;
 153 }