fix crash when collapsing ert with cursor inside

[lyx.git] / src / converter.C

diff --git a/src/converter.C b/src/converter.C
index 693ba8e444d765778a71451049da390386ed552d..79feb70ffeb02e61af370d81acdfb40f55b49592 100644 (file)
--- a/src/converter.C
+++ b/src/converter.C
@@ -36,6 +36,8 @@ using lyx::support::compare_ascii_no_case;
 using lyx::support::contains;
 using lyx::support::DirList;
 using lyx::support::GetExtension;
+using lyx::support::IsFileReadable;
+using lyx::support::LibFileSearch;
 using lyx::support::LibScriptSearch;
 using lyx::support::MakeRelPath;
 using lyx::support::OnlyFilename;
@@ -279,16 +281,42 @@ OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path)
 bool Converters::convert(Buffer const * buffer,
                         string const & from_file, string const & to_file_base,
                         string const & from_format, string const & to_format,
-                        string & to_file)
+                        string & to_file, bool try_default)
 {
-       to_file = ChangeExtension(to_file_base,
-                                 formats.extension(to_format));
+       string const to_ext = formats.extension(to_format);
+       to_file = ChangeExtension(to_file_base, to_ext);
 
        if (from_format == to_format)
                return move(from_format, from_file, to_file, false);
 
        Graph::EdgePath edgepath = getPath(from_format, to_format);
        if (edgepath.empty()) {
+               if (try_default) {
+                       // if no special converter defined, then we take the
+                       // default one from ImageMagic.
+                       string const from_ext = formats.extension(from_format);
+                       string const command =
+                               "sh " +
+                               QuoteName(LibFileSearch("scripts", "convertDefault.sh")) +
+                               ' ' +
+                               QuoteName(from_ext + ':' + from_file) +
+                               ' ' +
+                               QuoteName(to_ext + ':' + to_file);
+                       lyxerr[Debug::FILES]
+                               << "No converter defined! "
+                                  "I use convertDefault.sh:\n\t"
+                               << command << endl;
+                       Systemcall one;
+                       one.startscript(Systemcall::Wait, command);
+                       if (IsFileReadable(to_file)) {
+                               return true;
+                       }
+               }
+               Alert::error(_("Cannot convert file"),
+                       bformat(_("No information for converting %1$s "
+                               "format files to %2$s.\n"
+                               "Try defining a convertor in the preferences."),
+                       from_format, to_format));
                return false;
        }
        OutputParams runparams;
@@ -481,11 +509,12 @@ bool Converters::move(string const & fmt,
 
 bool Converters::convert(Buffer const * buffer,
                         string const & from_file, string const & to_file_base,
-                        string const & from_format, string const & to_format)
+                        string const & from_format, string const & to_format,
+                         bool try_default)
 {
        string to_file;
        return convert(buffer, from_file, to_file_base, from_format, to_format,
-                      to_file);
+                      to_file, try_default);
 }