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 "bufferparams.h"
  24 #include "converter.h"
  25 #include "format.h"
  26 #include "gettext.h"
  27 #include "lyxrc.h"
  28 #include "output_plaintext.h"
  29 #include "outputparams.h"
  30 #include "frontends/Alert.h"
  31
  32 #include "support/filetools.h"
  33
  34 using lyx::support::AddName;
  35 using lyx::support::bformat;
  36 using lyx::support::ChangeExtension;
  37 using lyx::support::contains;
  38 using lyx::support::MakeDisplayPath;
  39
  40 using std::find;
  41 using std::string;
  42 using std::vector;
  43
  44
  45 namespace {
  46
  47 vector<string> const Backends(Buffer const & buffer)
  48 {
  49         vector<string> v;
  50         if (buffer.params().getLyXTextClass().isTeXClassAvailable())
  51                 v.push_back(BufferFormat(buffer));
  52         v.push_back("text");
  53         return v;
  54 }
  55
  56 } //namespace anon
  57
  58
  59 bool Exporter::Export(Buffer * buffer, string const & format,
  60                       bool put_in_tempdir, string & result_file)
  61 {
  62         string backend_format;
  63         OutputParams runparams;
  64         runparams.flavor = OutputParams::LATEX;
  65         runparams.linelen = lyxrc.ascii_linelen;
  66         vector<string> backends = Backends(*buffer);
  67         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  68                 for (vector<string>::const_iterator it = backends.begin();
  69                      it != backends.end(); ++it) {
  70                         Graph::EdgePath p =
  71                                 converters.getPath(*it, format);
  72                         if (!p.empty()) {
  73                                 if (converters.usePdflatex(p))
  74                                         runparams.flavor = OutputParams::PDFLATEX;
  75                                 backend_format = *it;
  76                                 break;
  77                         }
  78                 }
  79                 if (backend_format.empty()) {
  80                         Alert::error(_("Couldn't export file"),
  81                                 bformat(_("No information for exporting the format %1$s."),
  82                                    formats.prettyName(format)));
  83                         return false;
  84                 }
  85         } else
  86                 backend_format = format;
  87
  88         string filename = buffer->getLatexName(false);
  89         if (!buffer->temppath().empty())
  90                 filename = AddName(buffer->temppath(), filename);
  91         filename = ChangeExtension(filename,
  92                                    formats.extension(backend_format));
  93
  94         // Ascii backend
  95         if (backend_format == "text")
  96                 writeFileAscii(*buffer, filename, runparams);
  97         // Linuxdoc backend
  98         else if (buffer->isLinuxDoc()) {
  99                 runparams.nice = !put_in_tempdir;
 100                 buffer->makeLinuxDocFile(filename, runparams);
 101         }
 102         // Docbook backend
 103         else if (buffer->isDocBook()) {
 104                 runparams.nice = !put_in_tempdir;
 105                 buffer->makeDocBookFile(filename, runparams);
 106         }
 107         // LaTeX backend
 108         else if (backend_format == format) {
 109                 runparams.nice = true;
 110                 buffer->makeLaTeXFile(filename, string(), runparams);
 111         } else if (contains(buffer->filePath(), ' ')) {
 112                 Alert::error(_("File name error"),
 113                            _("The directory path to the document cannot contain spaces."));
 114                 return false;
 115         } else {
 116                 runparams.nice = false;
 117                 buffer->makeLaTeXFile(filename, buffer->filePath(), runparams);
 118         }
 119
 120         string outfile_base = (put_in_tempdir)
 121                 ? filename : buffer->getLatexName(false);
 122
 123         if (!converters.convert(buffer, filename, outfile_base,
 124                                 backend_format, format, result_file))
 125                 return false;
 126
 127         if (!put_in_tempdir)
 128                 buffer->message(_("Document exported as ")
 129                                       + formats.prettyName(format)
 130                                       + _(" to file `")
 131                                       + MakeDisplayPath(result_file) +'\'');
 132         return true;
 133 }
 134
 135
 136 bool Exporter::Export(Buffer * buffer, string const & format,
 137                       bool put_in_tempdir)
 138 {
 139         string result_file;
 140         return Export(buffer, format, put_in_tempdir, result_file);
 141 }
 142
 143
 144 bool Exporter::Preview(Buffer * buffer, string const & format)
 145 {
 146         string result_file;
 147         if (!Export(buffer, format, true, result_file))
 148                 return false;
 149         return formats.view(*buffer, result_file, format);
 150 }
 151
 152
 153 bool Exporter::IsExportable(Buffer const & buffer, string const & format)
 154 {
 155         vector<string> backends = Backends(buffer);
 156         for (vector<string>::const_iterator it = backends.begin();
 157              it != backends.end(); ++it)
 158                 if (converters.isReachable(*it, format))
 159                         return true;
 160         return false;
 161 }
 162
 163
 164 vector<Format const *> const
 165 Exporter::GetExportableFormats(Buffer const & buffer, bool only_viewable)
 166 {
 167         vector<string> backends = Backends(buffer);
 168         vector<Format const *> result =
 169                 converters.getReachable(backends[0], only_viewable, true);
 170         for (vector<string>::const_iterator it = backends.begin() + 1;
 171              it != backends.end(); ++it) {
 172                 vector<Format const *>  r =
 173                         converters.getReachable(*it, only_viewable, false);
 174                 result.insert(result.end(), r.begin(), r.end());
 175         }
 176         return result;
 177 }