+string BufferParams::bufferFormat() const
+{
+ string format = documentClass().outputFormat();
+ if (format == "latex") {
+ if (useNonTeXFonts)
+ return "xetex";
+ if (encoding().package() == Encoding::japanese)
+ return "platex";
+ }
+ return format;
+}
+
+
+bool BufferParams::isExportable(string const & format) const
+{
+ vector<string> backs = backends();
+ for (vector<string>::const_iterator it = backs.begin();
+ it != backs.end(); ++it)
+ if (theConverters().isReachable(*it, format))
+ return true;
+ return false;
+}
+
+
+namespace {
+
+bool formatSorter(Format const * lhs, Format const * rhs)
+{
+ return _(lhs->prettyname()) < _(rhs->prettyname());
+}
+
+}
+
+
+vector<Format const *> BufferParams::exportableFormats(bool only_viewable) const
+{
+ vector<string> const backs = backends();
+ set<string> excludes;
+ if (useNonTeXFonts) {
+ excludes.insert("latex");
+ excludes.insert("pdflatex");
+ }
+ vector<Format const *> result =
+ theConverters().getReachable(backs[0], only_viewable, true, excludes);
+ for (vector<string>::const_iterator it = backs.begin() + 1;
+ it != backs.end(); ++it) {
+ vector<Format const *> r =
+ theConverters().getReachable(*it, only_viewable, false, excludes);
+ result.insert(result.end(), r.begin(), r.end());
+ }
+ sort(result.begin(), result.end(), formatSorter);
+ return result;
+}
+
+
+bool BufferParams::isExportableFormat(string const & format) const
+{
+ typedef vector<Format const *> Formats;
+ Formats formats;
+ formats = exportableFormats(true);
+ Formats::const_iterator fit = formats.begin();
+ Formats::const_iterator end = formats.end();
+ for (; fit != end ; ++fit) {
+ if ((*fit)->name() == format)
+ return true;
+ }
+ return false;
+}
+
+
+vector<string> BufferParams::backends() const
+{
+ vector<string> v;
+ string const buffmt = bufferFormat();
+
+ // FIXME: Don't hardcode format names here, but use a flag
+ if (buffmt == "latex") {
+ if (!useNonTeXFonts) {
+ v.push_back("pdflatex");
+ v.push_back("latex");
+ }
+ v.push_back("luatex");
+ v.push_back("dviluatex");
+ v.push_back("xetex");
+ } else if (buffmt == "xetex") {
+ v.push_back("xetex");
+ v.push_back("luatex");
+ v.push_back("dviluatex");
+ } else
+ v.push_back(buffmt);
+
+ v.push_back("xhtml");
+ v.push_back("text");
+ v.push_back("lyx");
+ return v;
+}
+
+
+OutputParams::FLAVOR BufferParams::getOutputFlavor(string const format) const
+{
+ string const dformat = (format.empty() || format == "default") ?
+ getDefaultOutputFormat() : format;
+ DefaultFlavorCache::const_iterator it =
+ default_flavors_.find(dformat);
+
+ if (it != default_flavors_.end())
+ return it->second;
+
+ OutputParams::FLAVOR result = OutputParams::LATEX;
+
+ // FIXME It'd be better not to hardcode this, but to do
+ // something with formats.
+ if (dformat == "xhtml")
+ result = OutputParams::HTML;
+ else if (dformat == "text")
+ result = OutputParams::TEXT;
+ else if (dformat == "lyx")
+ result = OutputParams::LYX;
+ else if (dformat == "pdflatex")
+ result = OutputParams::PDFLATEX;
+ else if (dformat == "xetex")
+ result = OutputParams::XETEX;
+ else if (dformat == "luatex")
+ result = OutputParams::LUATEX;
+ else if (dformat == "dviluatex")
+ result = OutputParams::DVILUATEX;
+ else {
+ // Try to determine flavor of default output format
+ vector<string> backs = backends();
+ if (find(backs.begin(), backs.end(), dformat) == backs.end()) {
+ // Get shortest path to format
+ Graph::EdgePath path;
+ for (vector<string>::const_iterator it = backs.begin();
+ it != backs.end(); ++it) {
+ Graph::EdgePath p = theConverters().getPath(*it, dformat);
+ if (!p.empty() && (path.empty() || p.size() < path.size())) {
+ path = p;
+ }
+ }
+ if (!path.empty())
+ result = theConverters().getFlavor(path);
+ }
+ }
+ // cache this flavor
+ default_flavors_[dformat] = result;
+ return result;
+}
+
+
+string BufferParams::getDefaultOutputFormat() const
+{
+ if (!default_output_format.empty()
+ && default_output_format != "default")
+ return default_output_format;
+ if (isDocBook()
+ || useNonTeXFonts
+ || encoding().package() == Encoding::japanese) {
+ vector<Format const *> const formats = exportableFormats(true);
+ if (formats.empty())
+ return string();
+ // return the first we find
+ return formats.front()->name();
+ }
+ return lyxrc.default_view_format;
+}
+