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 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include <algorithm>
  18
  19 #include "exporter.h"
  20 #include "buffer.h"
  21 #include "lyx_cb.h" //ShowMessage()
  22 #include "support/filetools.h"
  23 #include "lyxrc.h"
  24 #include "converter.h"
  25 #include "frontends/Alert.h"
  26 #include "gettext.h"
  27 #include "BufferView.h"
  28
  29 using std::vector;
  30 using std::find;
  31
  32 bool Exporter::Export(Buffer * buffer, string const & format,
  33                       bool put_in_tempdir, string & result_file)
  34 {
  35         // There are so many different places that this function can be called
  36         // from that the removal of auto insets is best done here.  This ensures
  37         // we always have a clean buffer for inserting errors found during export.
  38         BufferView * bv = buffer->getUser();
  39         if (bv) {
  40                 // Remove all error insets
  41                 if (bv->removeAutoInsets()) {
  42                         bv->redraw();
  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                         Converters::EdgePath p =
  53                                 converters.getPath(*it, format);
  54                         if (!p.empty()) {
  55                                 lyxrc.pdf_mode = converters.usePdflatex(p);
  56                                 backend_format = *it;
  57                                 break;
  58                         }
  59                 }
  60                 if (backend_format.empty()) {
  61                         Alert::alert(_("Cannot export file"),
  62                                    _("No information for exporting to ")
  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::alert(_("Cannot run latex."),
  89                            _("The path to the lyx file 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 bool Exporter::Export(Buffer * buffer, string const & format,
 111                       bool put_in_tempdir)
 112 {
 113         string result_file;
 114         return Export(buffer, format, put_in_tempdir, result_file);
 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 vector<string> const Exporter::Backends(Buffer const * buffer)
 166 {
 167         vector<string> v;
 168         v.push_back(BufferFormat(buffer));
 169         v.push_back("text");
 170         return v;
 171 }