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 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         LatexRunParams runparams;
  64         runparams.flavor = LatexRunParams::LATEX;
  65         vector<string> backends = Backends(*buffer);
  66         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  67                 for (vector<string>::const_iterator it = backends.begin();
  68                      it != backends.end(); ++it) {
  69                         Graph::EdgePath p =
  70                                 converters.getPath(*it, format);
  71                         if (!p.empty()) {
  72                                 if (converters.usePdflatex(p))
  73                                         runparams.flavor = LatexRunParams::PDFLATEX;
  74                                 backend_format = *it;
  75                                 break;
  76                         }
  77                 }
  78                 if (backend_format.empty()) {
  79                         Alert::error(_("Couldn't export file"),
  80                                 bformat(_("No information for exporting the format %1$s."),
  81                                    formats.prettyName(format)));
  82                         return false;
  83                 }
  84         } else
  85                 backend_format = format;
  86
  87         string filename = buffer->getLatexName(false);
  88         if (!buffer->temppath().empty())
  89                 filename = AddName(buffer->temppath(), filename);
  90         filename = ChangeExtension(filename,
  91                                    formats.extension(backend_format));
  92
  93         // Ascii backend
  94         if (backend_format == "text")
  95                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  96         // Linuxdoc backend
  97         else if (buffer->isLinuxDoc())
  98                 buffer->makeLinuxDocFile(filename, !put_in_tempdir);
  99         // Docbook backend
 100         else if (buffer->isDocBook())
 101                 buffer->makeDocBookFile(filename, !put_in_tempdir);
 102         // LaTeX backend
 103         else if (backend_format == format) {
 104                 runparams.nice = true;
 105                 buffer->makeLaTeXFile(filename, string(), runparams);
 106         } else if (contains(buffer->filePath(), ' ')) {
 107                 Alert::error(_("File name error"),
 108                            _("The directory path to the document cannot contain spaces."));
 109                 return false;
 110         } else {
 111                 runparams.nice = false;
 112                 buffer->makeLaTeXFile(filename, buffer->filePath(), runparams);
 113         }
 114
 115         string outfile_base = (put_in_tempdir)
 116                 ? filename : buffer->getLatexName(false);
 117
 118         if (!converters.convert(buffer, filename, outfile_base,
 119                                 backend_format, format, result_file))
 120                 return false;
 121
 122         if (!put_in_tempdir)
 123                 buffer->message(_("Document exported as ")
 124                                       + formats.prettyName(format)
 125                                       + _(" to file `")
 126                                       + MakeDisplayPath(result_file) +'\'');
 127         return true;
 128 }
 129
 130
 131 bool Exporter::Export(Buffer * buffer, string const & format,
 132                       bool put_in_tempdir)
 133 {
 134         string result_file;
 135         return Export(buffer, format, put_in_tempdir, result_file);
 136 }
 137
 138
 139 bool Exporter::Preview(Buffer * buffer, string const & format)
 140 {
 141         string result_file;
 142         if (!Export(buffer, format, true, result_file))
 143                 return false;
 144         return formats.view(*buffer, result_file, format);
 145 }
 146
 147
 148 bool Exporter::IsExportable(Buffer const & buffer, string const & format)
 149 {
 150         vector<string> backends = Backends(buffer);
 151         for (vector<string>::const_iterator it = backends.begin();
 152              it != backends.end(); ++it)
 153                 if (converters.isReachable(*it, format))
 154                         return true;
 155         return false;
 156 }
 157
 158
 159 vector<Format const *> const
 160 Exporter::GetExportableFormats(Buffer const & buffer, bool only_viewable)
 161 {
 162         vector<string> backends = Backends(buffer);
 163         vector<Format const *> result =
 164                 converters.getReachable(backends[0], only_viewable, true);
 165         for (vector<string>::const_iterator it = backends.begin() + 1;
 166              it != backends.end(); ++it) {
 167                 vector<Format const *>  r =
 168                         converters.getReachable(*it, only_viewable, false);
 169                 result.insert(result.end(), r.begin(), r.end());
 170         }
 171         return result;
 172 }