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 <algorithm>
  18
  19 #include "importer.h"
  20 #include "converter.h"
  21 #include "LyXView.h"
  22 #include "lyxfunc.h"
  23
  24 #include "bufferlist.h"
  25 #include "support/filetools.h"
  26 #include "frontends/Alert.h"
  27 #include "gettext.h"
  28 #include "BufferView.h"
  29
  30 using std::vector;
  31 using std::find;
  32
  33 extern BufferList bufferlist;
  34 extern void InsertAsciiFile(BufferView *, string const &, bool);
  35
  36
  37 bool Importer::Import(LyXView * lv, string const & filename,
  38                       string const & format)
  39 {
  40         string const displaypath = MakeDisplayPath(filename);
  41         ostringstream s1;
  42         s1 << _("Importing") << ' ' << displaypath << "...";
  43         lv->message(s1.str().c_str());
  44
  45         string const lyxfile = ChangeExtension(filename, ".lyx");
  46
  47         string loader_format;
  48         vector<string> loaders = Loaders();
  49         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
  50                 for (vector<string>::const_iterator it = loaders.begin();
  51                      it != loaders.end(); ++it) {
  52                         if (converters.isReachable(format, *it)) {
  53                                 if (!converters.convert(0, filename, filename,
  54                                                         format, *it))
  55                                         return false;
  56                                 loader_format = *it;
  57                                 break;
  58                         }
  59                 }
  60                 if (loader_format.empty()) {
  61                         Alert::alert(_("Cannot import file"),
  62                                    _("No information for importing from ")
  63                                    + formats.prettyName(format));
  64                         return false;
  65                 }
  66         } else
  67                 loader_format = format;
  68
  69
  70         if (loader_format == "lyx") {
  71                 Buffer * buffer = bufferlist.loadLyXFile(lyxfile);
  72                 if (buffer)
  73                         lv->view()->buffer(buffer);
  74         } else {
  75                 lv->view()->buffer(bufferlist.newFile(lyxfile, string(), true));
  76                 bool as_paragraphs = loader_format == "textparagraph";
  77                 string filename2 = (loader_format == format) ? filename
  78                         : ChangeExtension(filename,
  79                                           formats.extension(loader_format));
  80                 InsertAsciiFile(lv->view(), filename2, as_paragraphs);
  81                 lv->getLyXFunc()->dispatch(LFUN_MARK_OFF);
  82         }
  83
  84         // we are done
  85         lv->message(_("imported."));
  86         return true;
  87 }
  88
  89
  90 #if 0
  91 bool Importer::IsImportable(string const & format)
  92 {
  93         vector<string> loaders = Loaders();
  94         for (vector<string>::const_iterator it = loaders.begin();
  95              it != loaders.end(); ++it)
  96                 if (converters.IsReachable(format, *it))
  97                         return true;
  98         return false;
  99 }
 100 #endif
 101
 102
 103 vector<Format const *> const Importer::GetImportableFormats()
 104 {
 105         vector<string> loaders = Loaders();
 106         vector<Format const *> result =
 107                 converters.getReachableTo(loaders[0], true);
 108         for (vector<string>::const_iterator it = loaders.begin() + 1;
 109              it != loaders.end(); ++it) {
 110                 vector<Format const *> r =
 111                         converters.getReachableTo(*it, false);
 112                 result.insert(result.end(), r.begin(), r.end());
 113         }
 114         return result;
 115 }
 116
 117
 118 vector<string> const Importer::Loaders()
 119 {
 120         vector<string> v;
 121         v.push_back("lyx");
 122         v.push_back("text");
 123         v.push_back("textparagraph");
 124         return v;
 125 }