method get_hadjustment = new GData.adjustment (MathView.get_hadjustment obj)
method get_vadjustment = new GData.adjustment (MathView.get_vadjustment obj)
method get_buffer = MathView.get_buffer obj
method get_hadjustment = new GData.adjustment (MathView.get_hadjustment obj)
method get_vadjustment = new GData.adjustment (MathView.get_vadjustment obj)
method get_buffer = MathView.get_buffer obj