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         // There are so many different places that this function can be called
  33         // from that the removal of auto insets is best done here.  This ensures
  34         // we always have a clean buffer for inserting errors found during export.
  35         BufferView * bv = buffer->getUser();
  36
  37         string backend_format;
  38         LatexRunParams runparams;
  39         runparams.flavor = LatexRunParams::LATEX;
  40         vector<string> backends = Backends(buffer);
  41         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  42                 for (vector<string>::const_iterator it = backends.begin();
  43                      it != backends.end(); ++it) {
  44                         Graph::EdgePath p =
  45                                 converters.getPath(*it, format);
  46                         if (!p.empty()) {
  47                                 if (converters.usePdflatex(p))
  48                                         runparams.flavor = LatexRunParams::PDFLATEX;
  49                                 backend_format = *it;
  50                                 break;
  51                         }
  52                 }
  53                 if (backend_format.empty()) {
  54                         Alert::error(_("Couldn't export file"),
  55                                 bformat(_("No information for exporting the format %1$s."),
  56                                    formats.prettyName(format)));
  57                         return false;
  58                 }
  59         } else
  60                 backend_format = format;
  61
  62         string filename = buffer->getLatexName(false);
  63         if (!buffer->tmppath.empty())
  64                 filename = AddName(buffer->tmppath, filename);
  65         filename = ChangeExtension(filename,
  66                                    formats.extension(backend_format));
  67
  68         // Ascii backend
  69         if (backend_format == "text")
  70                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  71         // Linuxdoc backend
  72         else if (buffer->isLinuxDoc())
  73                 buffer->makeLinuxDocFile(filename, !put_in_tempdir);
  74         // Docbook backend
  75         else if (buffer->isDocBook())
  76                 buffer->makeDocBookFile(filename, !put_in_tempdir);
  77         // LaTeX backend
  78         else if (backend_format == format) {
  79                 runparams.nice = true;
  80                 buffer->makeLaTeXFile(filename, string(), runparams);
  81         } else if (contains(buffer->filePath(), ' ')) {
  82                 Alert::error(_("File name error"),
  83                            _("The directory path to the document cannot contain spaces."));
  84                 return false;
  85         } else {
  86                 runparams.nice = false;
  87                 buffer->makeLaTeXFile(filename, buffer->filePath(), runparams);
  88         }
  89
  90         string outfile_base = (put_in_tempdir)
  91                 ? filename : buffer->getLatexName(false);
  92
  93         if (!converters.convert(buffer, filename, outfile_base,
  94                                 backend_format, format, result_file))
  95                 return false;
  96
  97         if (!put_in_tempdir)
  98                 ShowMessage(buffer,
  99                             _("Document exported as ")
 100                             + formats.prettyName(format)
 101                             + _(" to file `")
 102                             + MakeDisplayPath(result_file) +'\'');
 103         return true;
 104 }
 105
 106
 107 bool Exporter::Export(Buffer * buffer, string const & format,
 108                       bool put_in_tempdir)
 109 {
 110         string result_file;
 111         return Export(buffer, format, put_in_tempdir, result_file);
 112 }
 113
 114
 115 bool Exporter::Preview(Buffer * buffer, string const & format)
 116 {
 117         string result_file;
 118         if (!Export(buffer, format, true, result_file))
 119                 return false;
 120         return formats.view(buffer, result_file, format);
 121 }
 122
 123
 124 bool Exporter::IsExportable(Buffer const * buffer, string const & format)
 125 {
 126         vector<string> backends = Backends(buffer);
 127         for (vector<string>::const_iterator it = backends.begin();
 128              it != backends.end(); ++it)
 129                 if (converters.isReachable(*it, format))
 130                         return true;
 131         return false;
 132 }
 133
 134
 135 vector<Format const *> const
 136 Exporter::GetExportableFormats(Buffer const * buffer, bool only_viewable)
 137 {
 138         vector<string> backends = Backends(buffer);
 139         vector<Format const *> result =
 140                 converters.getReachable(backends[0], only_viewable, true);
 141         for (vector<string>::const_iterator it = backends.begin() + 1;
 142              it != backends.end(); ++it) {
 143                 vector<Format const *>  r =
 144                         converters.getReachable(*it, only_viewable, false);
 145                 result.insert(result.end(), r.begin(), r.end());
 146         }
 147         return result;
 148 }
 149
 150
 151 string const Exporter::BufferFormat(Buffer const * buffer)
 152 {
 153         if (buffer->isLinuxDoc())
 154                 return "linuxdoc";
 155         else if (buffer->isDocBook())
 156                 return "docbook";
 157         else if (buffer->isLiterate())
 158                 return "literate";
 159         else
 160                 return "latex";
 161 }
 162
 163
 164 vector<string> const Exporter::Backends(Buffer const * buffer)
 165 {
 166         vector<string> v;
 167         if (buffer->params.getLyXTextClass().isTeXClassAvailable())
 168                 v.push_back(BufferFormat(buffer));
 169         v.push_back("text");
 170         return v;
 171 }