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