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