LIBGTKMM2EXT_API void rounded_top_half_rectangle (Cairo::RefPtr<Cairo::Context>, double x, double y, double w, double h, double r=10);
LIBGTKMM2EXT_API void rounded_bottom_half_rectangle (Cairo::RefPtr<Cairo::Context>, double x, double y, double w, double h, double r=10);
LIBGTKMM2EXT_API void rounded_right_half_rectangle (Cairo::RefPtr<Cairo::Context>, double x, double y, double w, double h, double r=10);
+ LIBGTKMM2EXT_API void rounded_left_half_rectangle (Cairo::RefPtr<Cairo::Context>, double x, double y, double w, double h, double r=10);
/* C API for rounded rectangles */
LIBGTKMM2EXT_API void rounded_top_half_rectangle (cairo_t*, double x, double y, double w, double h, double r=10);
LIBGTKMM2EXT_API void rounded_bottom_half_rectangle (cairo_t*, double x, double y, double w, double h, double r=10);
LIBGTKMM2EXT_API void rounded_right_half_rectangle (cairo_t*, double x, double y, double w, double h, double r=10);
+ LIBGTKMM2EXT_API void rounded_left_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r=10);
LIBGTKMM2EXT_API Gtk::Label* left_aligned_label (std::string const &);