src/exporter.C

   1 /**
   2  * \file exporter.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10
  11 #include <config.h>
  12
  13 #include "exporter.h"
  14 #include "buffer.h"
  15 #include "lyx_cb.h" //ShowMessage()
  16 #include "support/filetools.h"
  17 #include "lyxrc.h"
  18 #include "converter.h"
  19 #include "format.h"
  20 #include "frontends/Alert.h"
  21 #include "gettext.h"
  22 #include "BufferView.h"
  23
  24 #include <algorithm>
  25
  26 using std::vector;
  27 using std::find;
  28
  29 bool Exporter::Export(Buffer * buffer, string const & format,
  30                       bool put_in_tempdir, string & result_file)
  31 {
  32         // There are so many different places that this function can be called
  33         // from that the removal of auto insets is best done here.  This ensures
  34         // we always have a clean buffer for inserting errors found during export.
  35         BufferView * bv = buffer->getUser();
  36         if (bv) {
  37                 // Remove all error insets
  38                 if (bv->removeAutoInsets()) {
  39 #warning repaint() or update() or nothing ?
  40                         bv->repaint();
  41                         bv->fitCursor();
  42                 }
  43         }
  44
  45         string backend_format;
  46         LatexRunParams runparams;
  47         runparams.flavor = LatexRunParams::LATEX;
  48         vector<string> backends = Backends(buffer);
  49         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  50                 for (vector<string>::const_iterator it = backends.begin();
  51                      it != backends.end(); ++it) {
  52                         Graph::EdgePath p =
  53                                 converters.getPath(*it, format);
  54                         if (!p.empty()) {
  55                                 if (converters.usePdflatex(p))
  56                                         runparams.flavor = LatexRunParams::PDFLATEX;
  57                                 backend_format = *it;
  58                                 break;
  59                         }
  60                 }
  61                 if (backend_format.empty()) {
  62                         Alert::error(_("Couldn't export file"),
  63                                 bformat(_("No information for exporting the format %1$s."),
  64                                    formats.prettyName(format)));
  65                         return false;
  66                 }
  67         } else
  68                 backend_format = format;
  69
  70         string filename = buffer->getLatexName(false);
  71         if (!buffer->tmppath.empty())
  72                 filename = AddName(buffer->tmppath, filename);
  73         filename = ChangeExtension(filename,
  74                                    formats.extension(backend_format));
  75
  76         // Ascii backend
  77         if (backend_format == "text")
  78                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  79         // Linuxdoc backend
  80         else if (buffer->isLinuxDoc())
  81                 buffer->makeLinuxDocFile(filename, !put_in_tempdir);
  82         // Docbook backend
  83         else if (buffer->isDocBook())
  84                 buffer->makeDocBookFile(filename, !put_in_tempdir);
  85         // LaTeX backend
  86         else if (backend_format == format)
  87                 buffer->makeLaTeXFile(filename, string(), runparams, true);
  88         else if (contains(buffer->filePath(), ' ')) {
  89                 Alert::error(_("File name error"),
  90                            _("The directory path to the document cannot contain spaces."));
  91                 return false;
  92         } else
  93                 buffer->makeLaTeXFile(filename, buffer->filePath(),
  94                                       runparams, false);
  95
  96         string outfile_base = (put_in_tempdir)
  97                 ? filename : buffer->getLatexName(false);
  98
  99         if (!converters.convert(buffer, filename, outfile_base,
 100                                 backend_format, format, result_file))
 101                 return false;
 102
 103         if (!put_in_tempdir)
 104                 ShowMessage(buffer,
 105                             _("Document exported as ")
 106                             + formats.prettyName(format)
 107                             + _(" to file `")
 108                             + MakeDisplayPath(result_file) +'\'');
 109         return true;
 110 }
 111
 112
 113 bool Exporter::Export(Buffer * buffer, string const & format,
 114                       bool put_in_tempdir)
 115 {
 116         string result_file;
 117         return Export(buffer, format, put_in_tempdir, result_file);
 118 }
 119
 120
 121 bool Exporter::Preview(Buffer * buffer, string const & format)
 122 {
 123         string result_file;
 124         if (!Export(buffer, format, true, result_file))
 125                 return false;
 126         return formats.view(buffer, result_file, format);
 127 }
 128
 129
 130 bool Exporter::IsExportable(Buffer const * buffer, string const & format)
 131 {
 132         vector<string> backends = Backends(buffer);
 133         for (vector<string>::const_iterator it = backends.begin();
 134              it != backends.end(); ++it)
 135                 if (converters.isReachable(*it, format))
 136                         return true;
 137         return false;
 138 }
 139
 140
 141 vector<Format const *> const
 142 Exporter::GetExportableFormats(Buffer const * buffer, bool only_viewable)
 143 {
 144         vector<string> backends = Backends(buffer);
 145         vector<Format const *> result =
 146                 converters.getReachable(backends[0], only_viewable, true);
 147         for (vector<string>::const_iterator it = backends.begin() + 1;
 148              it != backends.end(); ++it) {
 149                 vector<Format const *>  r =
 150                         converters.getReachable(*it, only_viewable, false);
 151                 result.insert(result.end(), r.begin(), r.end());
 152         }
 153         return result;
 154 }
 155
 156
 157 string const Exporter::BufferFormat(Buffer const * buffer)
 158 {
 159         if (buffer->isLinuxDoc())
 160                 return "linuxdoc";
 161         else if (buffer->isDocBook())
 162                 return "docbook";
 163         else if (buffer->isLiterate())
 164                 return "literate";
 165         else
 166                 return "latex";
 167 }
 168
 169
 170 vector<string> const Exporter::Backends(Buffer const * buffer)
 171 {
 172         vector<string> v;
 173         if (buffer->params.getLyXTextClass().isTeXClassAvailable())
 174                 v.push_back(BufferFormat(buffer));
 175         v.push_back("text");
 176         return v;
 177 }