Struct DrawRefCell 

pub struct DrawRefCell<T> { /* private fields */ }

A RefCell-flavoured variant for state that is not Copy (strings, vectors, structs). Reading is unchanged; a mutable borrow requests a repaint when its guard drops.

Caveat

Unlike DrawCell, this cannot do change detection — it doesn’t know whether a &mut borrow actually modified anything — so every borrow_mut requests a draw on drop, even if the caller changed nothing. Prefer DrawCell for Copy values where redundant frames matter; reach for DrawRefCell when the payload can’t be Copy and you accept a repaint per mutable borrow.

Implementations

impl<T> DrawRefCell<T>

pub const fn new(value: T) -> Self

Create a cell holding value.

pub fn borrow(&self) -> Ref<'_, T>

Immutably borrow the contents. Does not request a draw.

pub fn borrow_mut(&self) -> DrawRefMut<'_, T>

Mutably borrow the contents. The returned guard requests a repaint when it drops (see the type-level caveat about no change detection).

Trait Implementations

impl<T: Debug> Debug for DrawRefCell<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Default> Default for DrawRefCell<T>

fn default() -> Self

Returns the “default value” for a type.