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  * \author Alfredo Braunstein
   8  * \author Lars Gullik Bjønnes
   9  * \author Jean Marc Lasgouttes
  10  * \author Angus Leeming
  11  * \author John Levon
  12  * \author André Pönitz
  13  *
  14  * Full author contact details are available in file CREDITS.
  15  */
  16
  17 #include <config.h>
  18
  19 #include "exporter.h"
  20
  21 #include "buffer.h"
  22 #include "buffer_funcs.h"
  23 #include "converter.h"
  24 #include "format.h"
  25 #include "gettext.h"
  26 #include "latexrunparams.h"
  27 #include "lyxrc.h"
  28
  29 #include "frontends/Alert.h"
  30
  31 #include "support/filetools.h"
  32
  33 using namespace lyx::support;
  34
  35 using std::find;
  36
  37 using std::vector;
  38
  39
  40 namespace {
  41
  42 vector<string> const Backends(Buffer const & buffer)
  43 {
  44         vector<string> v;
  45         if (buffer.params().getLyXTextClass().isTeXClassAvailable())
  46                 v.push_back(BufferFormat(buffer));
  47         v.push_back("text");
  48         return v;
  49 }
  50
  51 } //namespace anon
  52
  53
  54 bool Exporter::Export(Buffer * buffer, string const & format,
  55                       bool put_in_tempdir, string & result_file)
  56 {
  57         string backend_format;
  58         LatexRunParams runparams;
  59         runparams.flavor = LatexRunParams::LATEX;
  60         vector<string> backends = Backends(*buffer);
  61         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  62                 for (vector<string>::const_iterator it = backends.begin();
  63                      it != backends.end(); ++it) {
  64                         Graph::EdgePath p =
  65                                 converters.getPath(*it, format);
  66                         if (!p.empty()) {
  67                                 if (converters.usePdflatex(p))
  68                                         runparams.flavor = LatexRunParams::PDFLATEX;
  69                                 backend_format = *it;
  70                                 break;
  71                         }
  72                 }
  73                 if (backend_format.empty()) {
  74                         Alert::error(_("Couldn't export file"),
  75                                 bformat(_("No information for exporting the format %1$s."),
  76                                    formats.prettyName(format)));
  77                         return false;
  78                 }
  79         } else
  80                 backend_format = format;
  81
  82         string filename = buffer->getLatexName(false);
  83         if (!buffer->temppath().empty())
  84                 filename = AddName(buffer->temppath(), filename);
  85         filename = ChangeExtension(filename,
  86                                    formats.extension(backend_format));
  87
  88         // Ascii backend
  89         if (backend_format == "text")
  90                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  91         // Linuxdoc backend
  92         else if (buffer->isLinuxDoc())
  93                 buffer->makeLinuxDocFile(filename, !put_in_tempdir);
  94         // Docbook backend
  95         else if (buffer->isDocBook())
  96                 buffer->makeDocBookFile(filename, !put_in_tempdir);
  97         // LaTeX backend
  98         else if (backend_format == format) {
  99                 runparams.nice = true;
 100                 buffer->makeLaTeXFile(filename, string(), runparams);
 101         } else if (contains(buffer->filePath(), ' ')) {
 102                 Alert::error(_("File name error"),
 103                            _("The directory path to the document cannot contain spaces."));
 104                 return false;
 105         } else {
 106                 runparams.nice = false;
 107                 buffer->makeLaTeXFile(filename, buffer->filePath(), runparams);
 108         }
 109
 110         string outfile_base = (put_in_tempdir)
 111                 ? filename : buffer->getLatexName(false);
 112
 113         if (!converters.convert(buffer, filename, outfile_base,
 114                                 backend_format, format, result_file))
 115                 return false;
 116
 117         if (!put_in_tempdir)
 118                 buffer->message(_("Document exported as ")
 119                                       + formats.prettyName(format)
 120                                       + _(" to file `")
 121                                       + MakeDisplayPath(result_file) +'\'');
 122         return true;
 123 }
 124
 125
 126 bool Exporter::Export(Buffer * buffer, string const & format,
 127                       bool put_in_tempdir)
 128 {
 129         string result_file;
 130         return Export(buffer, format, put_in_tempdir, result_file);
 131 }
 132
 133
 134 bool Exporter::Preview(Buffer * buffer, string const & format)
 135 {
 136         string result_file;
 137         if (!Export(buffer, format, true, result_file))
 138                 return false;
 139         return formats.view(*buffer, result_file, format);
 140 }
 141
 142
 143 bool Exporter::IsExportable(Buffer const & buffer, string const & format)
 144 {
 145         vector<string> backends = Backends(buffer);
 146         for (vector<string>::const_iterator it = backends.begin();
 147              it != backends.end(); ++it)
 148                 if (converters.isReachable(*it, format))
 149                         return true;
 150         return false;
 151 }
 152
 153
 154 vector<Format const *> const
 155 Exporter::GetExportableFormats(Buffer const & buffer, bool only_viewable)
 156 {
 157         vector<string> backends = Backends(buffer);
 158         vector<Format const *> result =
 159                 converters.getReachable(backends[0], only_viewable, true);
 160         for (vector<string>::const_iterator it = backends.begin() + 1;
 161              it != backends.end(); ++it) {
 162                 vector<Format const *>  r =
 163                         converters.getReachable(*it, only_viewable, false);
 164                 result.insert(result.end(), r.begin(), r.end());
 165         }
 166         return result;
 167 }