pub fn group<'a>(
ui: &mut Ui,
fields: &'a [Field<'a>],
show_extended: bool,
style: &FieldStyle,
draw: impl FnMut(&mut Ui, &'a Field<'a>),
)Expand description
A set of fields, laid down a column.
show_extended is the disclosure, and it is a parameter rather than state
held here because the disclosure belongs to the form and not to any field:
Field::extended marks which fields are behind one, and the app owns
whether it is open. That is the same division makeover-webview draws when
it marks the group data-extended and emits no control to toggle it.
draw is called once per field that should be visible, in order. Taking a
callback rather than a slice of Fillings is what keeps the app’s own
values borrowed one at a time: a form’s fields usually live in different
structs, and a parallel array would have to be built each frame and kept in
step with the description by hand.