src/exporter.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 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 "frontends/Alert.h"
  26 #include "gettext.h"
  27
  28 using std::vector;
  29 using std::find;
  30
  31 bool Exporter::Export(Buffer * buffer, string const & format,
  32                       bool put_in_tempdir, string & result_file)
  33 {
  34         string backend_format;
  35         vector<string> backends = Backends(buffer);
  36         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  37                 for (vector<string>::const_iterator it = backends.begin();
  38                      it != backends.end(); ++it) {
  39                         Converters::EdgePath p =
  40                                 converters.getPath(*it, format);
  41                         if (!p.empty()) {
  42                                 lyxrc.pdf_mode = converters.usePdflatex(p);
  43                                 backend_format = *it;
  44                                 break;
  45                         }
  46                 }
  47                 if (backend_format.empty()) {
  48                         Alert::alert(_("Cannot export file"),
  49                                    _("No information for exporting to ")
  50                                    + formats.prettyName(format));
  51                         return false;
  52                 }
  53         } else
  54                 backend_format = format;
  55
  56         string filename = buffer->getLatexName(false);
  57         if (!buffer->tmppath.empty())
  58                 filename = AddName(buffer->tmppath, filename);
  59         filename = ChangeExtension(filename,
  60                                    formats.extension(backend_format));
  61
  62         // Ascii backend
  63         if (backend_format == "text")
  64                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  65         // Linuxdoc backend
  66         else if (buffer->isLinuxDoc())
  67                 buffer->makeLinuxDocFile(filename, true);
  68         // Docbook backend
  69         else if (buffer->isDocBook())
  70                 buffer->makeDocBookFile(filename, true);
  71         // LaTeX backend
  72         else if (backend_format == format)
  73                 buffer->makeLaTeXFile(filename, string(), true);
  74         else if (contains(buffer->filePath(), ' ')) {
  75                 Alert::alert(_("Cannot run latex."),
  76                            _("The path to the lyx file cannot contain spaces."));
  77                 return false;
  78         } else
  79                 buffer->makeLaTeXFile(filename, buffer->filePath(), false);
  80
  81         string outfile_base = (put_in_tempdir)
  82                 ? filename : buffer->getLatexName(false);
  83
  84         if (!converters.convert(buffer, filename, outfile_base,
  85                                 backend_format, format, result_file))
  86                 return false;
  87
  88         if (!put_in_tempdir)
  89                 ShowMessage(buffer,
  90                             _("Document exported as ")
  91                             + formats.prettyName(format)
  92                             + _(" to file `")
  93                             + MakeDisplayPath(result_file) +'\'');
  94         return true;
  95 }
  96
  97 bool Exporter::Export(Buffer * buffer, string const & format,
  98                       bool put_in_tempdir)
  99 {
 100         string result_file;
 101         return Export(buffer, format, put_in_tempdir, result_file);
 102 }
 103
 104 bool Exporter::Preview(Buffer * buffer, string const & format)
 105 {
 106         string result_file;
 107         if (!Export(buffer, format, true, result_file))
 108                 return false;
 109         return formats.view(buffer, result_file, format);
 110 }
 111
 112
 113 bool Exporter::IsExportable(Buffer const * buffer, string const & format)
 114 {
 115         vector<string> backends = Backends(buffer);
 116         for (vector<string>::const_iterator it = backends.begin();
 117              it != backends.end(); ++it)
 118                 if (converters.isReachable(*it, format))
 119                         return true;
 120         return false;
 121 }
 122
 123
 124 vector<Format const *> const
 125 Exporter::GetExportableFormats(Buffer const * buffer, bool only_viewable)
 126 {
 127         vector<string> backends = Backends(buffer);
 128         vector<Format const *> result =
 129                 converters.getReachable(backends[0], only_viewable, true);
 130         for (vector<string>::const_iterator it = backends.begin() + 1;
 131              it != backends.end(); ++it) {
 132                 vector<Format const *>  r =
 133                         converters.getReachable(*it, only_viewable, false);
 134                 result.insert(result.end(), r.begin(), r.end());
 135         }
 136         return result;
 137 }
 138
 139
 140 string const Exporter::BufferFormat(Buffer const * buffer)
 141 {
 142         if (buffer->isLinuxDoc())
 143                 return "linuxdoc";
 144         else if (buffer->isDocBook())
 145                 return "docbook";
 146         else if (buffer->isLiterate())
 147                 return "literate";
 148         else
 149                 return "latex";
 150 }
 151
 152 vector<string> const Exporter::Backends(Buffer const * buffer)
 153 {
 154         vector<string> v;
 155         v.push_back(BufferFormat(buffer));
 156         v.push_back("text");
 157         return v;
 158 }