src/exporter.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #include <algorithm>
  14
  15 #include "exporter.h"
  16 #include "buffer.h"
  17 #include "lyx_cb.h" //ShowMessage()
  18 #include "support/filetools.h"
  19 #include "lyxrc.h"
  20 #include "converter.h"
  21 #include "format.h"
  22 #include "frontends/Alert.h"
  23 #include "gettext.h"
  24 #include "BufferView.h"
  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         if (bv) {
  37                 // Remove all error insets
  38                 if (bv->removeAutoInsets()) {
  39 #warning repaint() or update() or nothing ?
  40                         bv->repaint();
  41                         bv->fitCursor();
  42                 }
  43         }
  44
  45         string backend_format;
  46         vector<string> backends = Backends(buffer);
  47         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  48                 for (vector<string>::const_iterator it = backends.begin();
  49                      it != backends.end(); ++it) {
  50                         Graph::EdgePath p =
  51                                 converters.getPath(*it, format);
  52                         if (!p.empty()) {
  53                                 lyxrc.pdf_mode = converters.usePdflatex(p);
  54                                 backend_format = *it;
  55                                 break;
  56                         }
  57                 }
  58                 if (backend_format.empty()) {
  59                         Alert::alert(_("Cannot export file"),
  60                                    _("No information for exporting to ")
  61                                    + formats.prettyName(format));
  62                         return false;
  63                 }
  64         } else
  65                 backend_format = format;
  66
  67         string filename = buffer->getLatexName(false);
  68         if (!buffer->tmppath.empty())
  69                 filename = AddName(buffer->tmppath, filename);
  70         filename = ChangeExtension(filename,
  71                                    formats.extension(backend_format));
  72
  73         // Ascii backend
  74         if (backend_format == "text")
  75                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  76         // Linuxdoc backend
  77         else if (buffer->isLinuxDoc())
  78                 buffer->makeLinuxDocFile(filename, !put_in_tempdir);
  79         // Docbook backend
  80         else if (buffer->isDocBook())
  81                 buffer->makeDocBookFile(filename, !put_in_tempdir);
  82         // LaTeX backend
  83         else if (backend_format == format)
  84                 buffer->makeLaTeXFile(filename, string(), true);
  85         else if (contains(buffer->filePath(), ' ')) {
  86                 Alert::alert(_("Cannot run LaTeX."),
  87                            _("The path to the lyx file cannot contain spaces."));
  88                 return false;
  89         } else
  90                 buffer->makeLaTeXFile(filename, buffer->filePath(), false);
  91
  92         string outfile_base = (put_in_tempdir)
  93                 ? filename : buffer->getLatexName(false);
  94
  95         if (!converters.convert(buffer, filename, outfile_base,
  96                                 backend_format, format, result_file))
  97                 return false;
  98
  99         if (!put_in_tempdir)
 100                 ShowMessage(buffer,
 101                             _("Document exported as ")
 102                             + formats.prettyName(format)
 103                             + _(" to file `")
 104                             + MakeDisplayPath(result_file) +'\'');
 105         return true;
 106 }
 107
 108
 109 bool Exporter::Export(Buffer * buffer, string const & format,
 110                       bool put_in_tempdir)
 111 {
 112         string result_file;
 113         return Export(buffer, format, put_in_tempdir, result_file);
 114 }
 115
 116
 117 bool Exporter::Preview(Buffer * buffer, string const & format)
 118 {
 119         string result_file;
 120         if (!Export(buffer, format, true, result_file))
 121                 return false;
 122         return formats.view(buffer, result_file, format);
 123 }
 124
 125
 126 bool Exporter::IsExportable(Buffer const * buffer, string const & format)
 127 {
 128         vector<string> backends = Backends(buffer);
 129         for (vector<string>::const_iterator it = backends.begin();
 130              it != backends.end(); ++it)
 131                 if (converters.isReachable(*it, format))
 132                         return true;
 133         return false;
 134 }
 135
 136
 137 vector<Format const *> const
 138 Exporter::GetExportableFormats(Buffer const * buffer, bool only_viewable)
 139 {
 140         vector<string> backends = Backends(buffer);
 141         vector<Format const *> result =
 142                 converters.getReachable(backends[0], only_viewable, true);
 143         for (vector<string>::const_iterator it = backends.begin() + 1;
 144              it != backends.end(); ++it) {
 145                 vector<Format const *>  r =
 146                         converters.getReachable(*it, only_viewable, false);
 147                 result.insert(result.end(), r.begin(), r.end());
 148         }
 149         return result;
 150 }
 151
 152
 153 string const Exporter::BufferFormat(Buffer const * buffer)
 154 {
 155         if (buffer->isLinuxDoc())
 156                 return "linuxdoc";
 157         else if (buffer->isDocBook())
 158                 return "docbook";
 159         else if (buffer->isLiterate())
 160                 return "literate";
 161         else
 162                 return "latex";
 163 }
 164
 165
 166 vector<string> const Exporter::Backends(Buffer const * buffer)
 167 {
 168         vector<string> v;
 169         v.push_back(BufferFormat(buffer));
 170         v.push_back("text");
 171         return v;
 172 }