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