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 #include <algorithm>
  14
  15 #include "exporter.h"
  16 #include "buffer.h"
  17 #include "lyx_cb.h" //ShowMessage()
  18 #include "support/filetools.h"
  19 #include "lyxrc.h"
  20 #include "converter.h"
  21 #include "frontends/Alert.h"
  22 #include "gettext.h"
  23 #include "BufferView.h"
  24
  25 using std::vector;
  26 using std::find;
  27
  28 bool Exporter::Export(Buffer * buffer, string const & format,
  29                       bool put_in_tempdir, string & result_file)
  30 {
  31         // There are so many different places that this function can be called
  32         // from that the removal of auto insets is best done here.  This ensures
  33         // we always have a clean buffer for inserting errors found during export.
  34         BufferView * bv = buffer->getUser();
  35         if (bv) {
  36                 // Remove all error insets
  37                 if (bv->removeAutoInsets()) {
  38 #warning repaint() or update() or nothing ?
  39                         bv->repaint();
  40                         bv->fitCursor();
  41                 }
  42         }
  43
  44         string backend_format;
  45         vector<string> backends = Backends(buffer);
  46         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  47                 for (vector<string>::const_iterator it = backends.begin();
  48                      it != backends.end(); ++it) {
  49                         Converters::EdgePath p =
  50                                 converters.getPath(*it, format);
  51                         if (!p.empty()) {
  52                                 lyxrc.pdf_mode = converters.usePdflatex(p);
  53                                 backend_format = *it;
  54                                 break;
  55                         }
  56                 }
  57                 if (backend_format.empty()) {
  58                         Alert::alert(_("Cannot export file"),
  59                                    _("No information for exporting to ")
  60                                    + formats.prettyName(format));
  61                         return false;
  62                 }
  63         } else
  64                 backend_format = format;
  65
  66         string filename = buffer->getLatexName(false);
  67         if (!buffer->tmppath.empty())
  68                 filename = AddName(buffer->tmppath, filename);
  69         filename = ChangeExtension(filename,
  70                                    formats.extension(backend_format));
  71
  72         // Ascii backend
  73         if (backend_format == "text")
  74                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  75         // Linuxdoc backend
  76         else if (buffer->isLinuxDoc())
  77                 buffer->makeLinuxDocFile(filename, !put_in_tempdir);
  78         // Docbook backend
  79         else if (buffer->isDocBook())
  80                 buffer->makeDocBookFile(filename, !put_in_tempdir);
  81         // LaTeX backend
  82         else if (backend_format == format)
  83                 buffer->makeLaTeXFile(filename, string(), true);
  84         else if (contains(buffer->filePath(), ' ')) {
  85                 Alert::alert(_("Cannot run LaTeX."),
  86                            _("The path to the lyx file cannot contain spaces."));
  87                 return false;
  88         } else
  89                 buffer->makeLaTeXFile(filename, buffer->filePath(), false);
  90
  91         string outfile_base = (put_in_tempdir)
  92                 ? filename : buffer->getLatexName(false);
  93
  94         if (!converters.convert(buffer, filename, outfile_base,
  95                                 backend_format, format, result_file))
  96                 return false;
  97
  98         if (!put_in_tempdir)
  99                 ShowMessage(buffer,
 100                             _("Document exported as ")
 101                             + formats.prettyName(format)
 102                             + _(" to file `")
 103                             + MakeDisplayPath(result_file) +'\'');
 104         return true;
 105 }
 106
 107
 108 bool Exporter::Export(Buffer * buffer, string const & format,
 109                       bool put_in_tempdir)
 110 {
 111         string result_file;
 112         return Export(buffer, format, put_in_tempdir, result_file);
 113 }
 114
 115
 116 bool Exporter::Preview(Buffer * buffer, string const & format)
 117 {
 118         string result_file;
 119         if (!Export(buffer, format, true, result_file))
 120                 return false;
 121         return formats.view(buffer, result_file, format);
 122 }
 123
 124
 125 bool Exporter::IsExportable(Buffer const * buffer, string const & format)
 126 {
 127         vector<string> backends = Backends(buffer);
 128         for (vector<string>::const_iterator it = backends.begin();
 129              it != backends.end(); ++it)
 130                 if (converters.isReachable(*it, format))
 131                         return true;
 132         return false;
 133 }
 134
 135
 136 vector<Format const *> const
 137 Exporter::GetExportableFormats(Buffer const * buffer, bool only_viewable)
 138 {
 139         vector<string> backends = Backends(buffer);
 140         vector<Format const *> result =
 141                 converters.getReachable(backends[0], only_viewable, true);
 142         for (vector<string>::const_iterator it = backends.begin() + 1;
 143              it != backends.end(); ++it) {
 144                 vector<Format const *>  r =
 145                         converters.getReachable(*it, only_viewable, false);
 146                 result.insert(result.end(), r.begin(), r.end());
 147         }
 148         return result;
 149 }
 150
 151
 152 string const Exporter::BufferFormat(Buffer const * buffer)
 153 {
 154         if (buffer->isLinuxDoc())
 155                 return "linuxdoc";
 156         else if (buffer->isDocBook())
 157                 return "docbook";
 158         else if (buffer->isLiterate())
 159                 return "literate";
 160         else
 161                 return "latex";
 162 }
 163
 164
 165 vector<string> const Exporter::Backends(Buffer const * buffer)
 166 {
 167         vector<string> v;
 168         v.push_back(BufferFormat(buffer));
 169         v.push_back("text");
 170         return v;
 171 }