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