pub trait RangeImpl: RangeImplExt + WidgetImpl {
fn adjust_bounds(&self, new_value: f64) { ... }
fn change_value(&self, scroll_type: ScrollType, new_value: f64) -> bool { ... }
fn range_border(&self) -> Border { ... }
fn move_slider(&self, scroll_type: ScrollType) { ... }
fn value_changed(&self) { ... }
}