the bounds, if they exist. when bounds are given
and clip
is true
, the time position is clipped
to the span of bounds
the underlying model's sample rate
the sample rate used for displaying frame positions. if zero, then the model's sample-rate is used
true
to clip values to the span start of bounds
, false
to allow values that lie before this span's start
true
to clip values to the span stop of bounds
, false
to allow values that lie after this span's stop
the underlying model's sample rate
Extension of
ParamField
for displaying time positions.