src/importer.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 "importer.h"
  18 #include "converter.h"
  19 #include "frontends/LyXView.h"
  20 #include "funcrequest.h"
  21
  22 #include "bufferlist.h"
  23 #include "support/filetools.h"
  24 #include "frontends/Alert.h"
  25 #include "gettext.h"
  26 #include "BufferView.h"
  27
  28 #include "BoostFormat.h"
  29
  30 #include <algorithm>
  31
  32 using std::vector;
  33 using std::find;
  34
  35 extern BufferList bufferlist;
  36 extern void InsertAsciiFile(BufferView *, string const &, bool);
  37
  38
  39 bool Importer::Import(LyXView * lv, string const & filename,
  40                       string const & format)
  41 {
  42         string const displaypath = MakeDisplayPath(filename);
  43         ostringstream s1;
  44         s1 << boost::format(_("Importing %1$s...")) % displaypath;
  45         lv->message(STRCONV(s1.str()));
  46
  47         string const lyxfile = ChangeExtension(filename, ".lyx");
  48
  49         string loader_format;
  50         vector<string> loaders = Loaders();
  51         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
  52                 for (vector<string>::const_iterator it = loaders.begin();
  53                      it != loaders.end(); ++it) {
  54                         if (converters.isReachable(format, *it)) {
  55                                 if (!converters.convert(0, filename, filename,
  56                                                         format, *it))
  57                                         return false;
  58                                 loader_format = *it;
  59                                 break;
  60                         }
  61                 }
  62                 if (loader_format.empty()) {
  63                         Alert::alert(_("Cannot import file"),
  64                                      boost::io::str(boost::format(_("No information for importing from %1$s"))
  65                                    % formats.prettyName(format)));
  66                         return false;
  67                 }
  68         } else
  69                 loader_format = format;
  70
  71
  72         if (loader_format == "lyx") {
  73                 Buffer * buffer = bufferlist.loadLyXFile(lyxfile);
  74                 if (buffer)
  75                         lv->view()->buffer(buffer);
  76         } else {
  77                 lv->view()->buffer(bufferlist.newFile(lyxfile, string(), true));
  78                 bool as_paragraphs = loader_format == "textparagraph";
  79                 string filename2 = (loader_format == format) ? filename
  80                         : ChangeExtension(filename,
  81                                           formats.extension(loader_format));
  82                 InsertAsciiFile(lv->view().get(), filename2, as_paragraphs);
  83                 lv->dispatch(FuncRequest(LFUN_MARK_OFF));
  84         }
  85
  86         // we are done
  87         lv->message(_("imported."));
  88         return true;
  89 }
  90
  91
  92 vector<Format const *> const Importer::GetImportableFormats()
  93 {
  94         vector<string> loaders = Loaders();
  95         vector<Format const *> result =
  96                 converters.getReachableTo(loaders[0], true);
  97         for (vector<string>::const_iterator it = loaders.begin() + 1;
  98              it != loaders.end(); ++it) {
  99                 vector<Format const *> r =
 100                         converters.getReachableTo(*it, false);
 101                 result.insert(result.end(), r.begin(), r.end());
 102         }
 103         return result;
 104 }
 105
 106
 107 vector<string> const Importer::Loaders()
 108 {
 109         vector<string> v;
 110         v.push_back("lyx");
 111         v.push_back("text");
 112         v.push_back("textparagraph");
 113         return v;
 114 }