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 pdf_mode = false;
  30
  31 bool Exporter::Export(Buffer * buffer, string const & format,
  32                       bool put_in_tempdir, string & result_file)
  33 {
  34         // There are so many different places that this function can be called
  35         // from that the removal of auto insets is best done here.  This ensures
  36         // we always have a clean buffer for inserting errors found during export.
  37         BufferView * bv = buffer->getUser();
  38         if (bv) {
  39                 // Remove all error insets
  40                 if (bv->removeAutoInsets()) {
  41 #warning repaint() or update() or nothing ?
  42                         bv->repaint();
  43                         bv->fitCursor();
  44                 }
  45         }
  46
  47         string backend_format;
  48         vector<string> backends = Backends(buffer);
  49         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  50                 for (vector<string>::const_iterator it = backends.begin();
  51                      it != backends.end(); ++it) {
  52                         Graph::EdgePath p =
  53                                 converters.getPath(*it, format);
  54                         if (!p.empty()) {
  55                                 pdf_mode = converters.usePdflatex(p);
  56                                 backend_format = *it;
  57                                 break;
  58                         }
  59                 }
  60                 if (backend_format.empty()) {
  61                         Alert::error(_("Couldn't export file"),
  62                                 bformat(_("No information for exporting the format %1$s."),
  63                                    formats.prettyName(format)));
  64                         return false;
  65                 }
  66         } else
  67                 backend_format = format;
  68
  69         string filename = buffer->getLatexName(false);
  70         if (!buffer->tmppath.empty())
  71                 filename = AddName(buffer->tmppath, filename);
  72         filename = ChangeExtension(filename,
  73                                    formats.extension(backend_format));
  74
  75         // Ascii backend
  76         if (backend_format == "text")
  77                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  78         // Linuxdoc backend
  79         else if (buffer->isLinuxDoc())
  80                 buffer->makeLinuxDocFile(filename, !put_in_tempdir);
  81         // Docbook backend
  82         else if (buffer->isDocBook())
  83                 buffer->makeDocBookFile(filename, !put_in_tempdir);
  84         // LaTeX backend
  85         else if (backend_format == format)
  86                 buffer->makeLaTeXFile(filename, string(), true);
  87         else if (contains(buffer->filePath(), ' ')) {
  88                 Alert::error(_("File name error"),
  89                            _("The directory path to the document cannot contain spaces."));
  90                 return false;
  91         } else
  92                 buffer->makeLaTeXFile(filename, buffer->filePath(), false);
  93
  94         string outfile_base = (put_in_tempdir)
  95                 ? filename : buffer->getLatexName(false);
  96
  97         if (!converters.convert(buffer, filename, outfile_base,
  98                                 backend_format, format, result_file))
  99                 return false;
 100
 101         if (!put_in_tempdir)
 102                 ShowMessage(buffer,
 103                             _("Document exported as ")
 104                             + formats.prettyName(format)
 105                             + _(" to file `")
 106                             + MakeDisplayPath(result_file) +'\'');
 107         return true;
 108 }
 109
 110
 111 bool Exporter::Export(Buffer * buffer, string const & format,
 112                       bool put_in_tempdir)
 113 {
 114         string result_file;
 115         return Export(buffer, format, put_in_tempdir, result_file);
 116 }
 117
 118
 119 bool Exporter::Preview(Buffer * buffer, string const & format)
 120 {
 121         string result_file;
 122         if (!Export(buffer, format, true, result_file))
 123                 return false;
 124         return formats.view(buffer, result_file, format);
 125 }
 126
 127
 128 bool Exporter::IsExportable(Buffer const * buffer, string const & format)
 129 {
 130         vector<string> backends = Backends(buffer);
 131         for (vector<string>::const_iterator it = backends.begin();
 132              it != backends.end(); ++it)
 133                 if (converters.isReachable(*it, format))
 134                         return true;
 135         return false;
 136 }
 137
 138
 139 vector<Format const *> const
 140 Exporter::GetExportableFormats(Buffer const * buffer, bool only_viewable)
 141 {
 142         vector<string> backends = Backends(buffer);
 143         vector<Format const *> result =
 144                 converters.getReachable(backends[0], only_viewable, true);
 145         for (vector<string>::const_iterator it = backends.begin() + 1;
 146              it != backends.end(); ++it) {
 147                 vector<Format const *>  r =
 148                         converters.getReachable(*it, only_viewable, false);
 149                 result.insert(result.end(), r.begin(), r.end());
 150         }
 151         return result;
 152 }
 153
 154
 155 string const Exporter::BufferFormat(Buffer const * buffer)
 156 {
 157         if (buffer->isLinuxDoc())
 158                 return "linuxdoc";
 159         else if (buffer->isDocBook())
 160                 return "docbook";
 161         else if (buffer->isLiterate())
 162                 return "literate";
 163         else
 164                 return "latex";
 165 }
 166
 167
 168 vector<string> const Exporter::Backends(Buffer const * buffer)
 169 {
 170         vector<string> v;
 171         if (buffer->params.getLyXTextClass().isTeXClassAvailable())
 172                 v.push_back(BufferFormat(buffer));
 173         v.push_back("text");
 174         return v;
 175 }