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