+string const BufferParams::font_encoding() const
+{
+ return (fontenc == "global") ? lyxrc.fontenc : fontenc;
+}
+
+
+string BufferParams::babelCall(string const & lang_opts) const
+{
+ string lang_pack = lyxrc.language_package;
+ if (lang_pack != "\\usepackage{babel}")
+ return lang_pack;
+ // suppress the babel call when there is no babel language defined
+ // for the document language in the lib/languages file and if no
+ // other languages are used (lang_opts is then empty)
+ if (lang_opts.empty())
+ return string();
+ // If Vietnamese is used, babel must directly be loaded with the
+ // language options, see
+ // http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg129417.html
+ size_t viet = lang_opts.find("vietnam");
+ // viet = string::npos when not found
+ // the same is for all other languages that are not directly supported by
+ // babel, but where LaTeX-packages add babel support.
+ // this is currently the case for Latvian, Lithuanian, and Mongolian
+ size_t latvian = lang_opts.find("latvian");
+ size_t lithu = lang_opts.find("lithuanian");
+ size_t mongo = lang_opts.find("mongolian");
+ // If Japanese is used, babel must directly be loaded with the
+ // language options, see
+ // http://www.lyx.org/trac/ticket/4597#c4
+ size_t japan = lang_opts.find("japanese");
+ if (!lyxrc.language_global_options || viet != string::npos
+ || japan != string::npos || latvian != string::npos
+ || lithu != string::npos || mongo != string::npos)
+ return "\\usepackage[" + lang_opts + "]{babel}";
+ return lang_pack;
+}
+
+
+docstring BufferParams::getGraphicsDriver(string const & package) const
+{
+ docstring result;
+
+ if (package == "geometry") {
+ if (graphicsDriver == "dvips"
+ || graphicsDriver == "dvipdfm"
+ || graphicsDriver == "pdftex"
+ || graphicsDriver == "vtex")
+ result = from_ascii(graphicsDriver);
+ else if (graphicsDriver == "dvipdfmx")
+ result = from_ascii("dvipdfm");
+ }
+
+ return result;
+}
+
+