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