pangomm: New API in pangomm 1.22
- Member Pango::CairoFontMap::set_default ()
- Member Pango::FontMap::create_context ()
- Member Pango::Layout::get_baseline () const
- Member Pango::Renderer::draw_glyph_item (const Glib::ustring& text, const GlyphItem& glyph_item, int x, int y)