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 #warning repaint() or update() or nothing ?
  43                         bv->repaint();
  44                         bv->fitCursor();
  45                 }
  46         }
  47
  48         string backend_format;
  49         vector<string> backends = Backends(buffer);
  50         if (find(backends.begin(), backends.end(), format) == backends.end()) {
  51                 for (vector<string>::const_iterator it = backends.begin();
  52                      it != backends.end(); ++it) {
  53                         Converters::EdgePath p =
  54                                 converters.getPath(*it, format);
  55                         if (!p.empty()) {
  56                                 lyxrc.pdf_mode = converters.usePdflatex(p);
  57                                 backend_format = *it;
  58                                 break;
  59                         }
  60                 }
  61                 if (backend_format.empty()) {
  62                         Alert::alert(_("Cannot export file"),
  63                                    _("No information for exporting to ")
  64                                    + formats.prettyName(format));
  65                         return false;
  66                 }
  67         } else
  68                 backend_format = format;
  69
  70         string filename = buffer->getLatexName(false);
  71         if (!buffer->tmppath.empty())
  72                 filename = AddName(buffer->tmppath, filename);
  73         filename = ChangeExtension(filename,
  74                                    formats.extension(backend_format));
  75
  76         // Ascii backend
  77         if (backend_format == "text")
  78                 buffer->writeFileAscii(filename, lyxrc.ascii_linelen);
  79         // Linuxdoc backend
  80         else if (buffer->isLinuxDoc())
  81                 buffer->makeLinuxDocFile(filename, !put_in_tempdir);
  82         // Docbook backend
  83         else if (buffer->isDocBook())
  84                 buffer->makeDocBookFile(filename, !put_in_tempdir);
  85         // LaTeX backend
  86         else if (backend_format == format)
  87                 buffer->makeLaTeXFile(filename, string(), true);
  88         else if (contains(buffer->filePath(), ' ')) {
  89                 Alert::alert(_("Cannot run latex."),
  90                            _("The path to the lyx file cannot contain spaces."));
  91                 return false;
  92         } else
  93                 buffer->makeLaTeXFile(filename, buffer->filePath(), false);
  94
  95         string outfile_base = (put_in_tempdir)
  96                 ? filename : buffer->getLatexName(false);
  97
  98         if (!converters.convert(buffer, filename, outfile_base,
  99                                 backend_format, format, result_file))
 100                 return false;
 101
 102         if (!put_in_tempdir)
 103                 ShowMessage(buffer,
 104                             _("Document exported as ")
 105                             + formats.prettyName(format)
 106                             + _(" to file `")
 107                             + MakeDisplayPath(result_file) +'\'');
 108         return true;
 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 bool Exporter::Preview(Buffer * buffer, string const & format)
 119 {
 120         string result_file;
 121         if (!Export(buffer, format, true, result_file))
 122                 return false;
 123         return formats.view(buffer, result_file, format);
 124 }
 125
 126
 127 bool Exporter::IsExportable(Buffer const * buffer, string const & format)
 128 {
 129         vector<string> backends = Backends(buffer);
 130         for (vector<string>::const_iterator it = backends.begin();
 131              it != backends.end(); ++it)
 132                 if (converters.isReachable(*it, format))
 133                         return true;
 134         return false;
 135 }
 136
 137
 138 vector<Format const *> const
 139 Exporter::GetExportableFormats(Buffer const * buffer, bool only_viewable)
 140 {
 141         vector<string> backends = Backends(buffer);
 142         vector<Format const *> result =
 143                 converters.getReachable(backends[0], only_viewable, true);
 144         for (vector<string>::const_iterator it = backends.begin() + 1;
 145              it != backends.end(); ++it) {
 146                 vector<Format const *>  r =
 147                         converters.getReachable(*it, only_viewable, false);
 148                 result.insert(result.end(), r.begin(), r.end());
 149         }
 150         return result;
 151 }
 152
 153
 154 string const Exporter::BufferFormat(Buffer const * buffer)
 155 {
 156         if (buffer->isLinuxDoc())
 157                 return "linuxdoc";
 158         else if (buffer->isDocBook())
 159                 return "docbook";
 160         else if (buffer->isLiterate())
 161                 return "literate";
 162         else
 163                 return "latex";
 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 }