Enum Value 

pub enum Value<T> {
    Static(T),
    Dynamic(Rc<dyn Fn() -> T>),
}

A property that is either fixed or computed from signals.

Value::Static is written once, when the element is built. Value::Dynamic becomes a binding: the closure is read when the node mounts and again whenever a signal it reads changes.

A value converts into this type, so a builder method can take either one.

Variants

Static(T)

A value that never changes.

Dynamic(Rc<dyn Fn() -> T>)

A closure that reads the value from signals.

Trait Implementations

impl<T: Clone> Clone for Value<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl From<&str> for Value<String>

fn from(text: &str) -> Value<String>

Converts to this type from the input type.

impl From<Align> for Value<Align>

fn from(value: Align) -> Value<Align>

Converts to this type from the input type.

impl From<Color> for Value<ColorValue>

fn from(color: Color) -> Value<ColorValue>

Converts to this type from the input type.

impl From<ColorToken> for Value<ColorValue>

fn from(token: ColorToken) -> Value<ColorValue>

Converts to this type from the input type.

impl From<ColorValue> for Value<ColorValue>

fn from(value: ColorValue) -> Value<ColorValue>

Converts to this type from the input type.

impl From<Cursor> for Value<Option<Cursor>>

fn from(cursor: Cursor) -> Value<Option<Cursor>>

Converts to this type from the input type.

impl From<Direction> for Value<Direction>

fn from(value: Direction) -> Value<Direction>

Converts to this type from the input type.

impl From<Edges<Length>> for Value<Edges<Length>>

fn from(value: Edges<Length>) -> Value<Edges<Length>>

Converts to this type from the input type.

impl<F: Fn() -> T + 'static, T: 'static> From<F> for Value<T>

fn from(get: F) -> Value<T>

Converts to this type from the input type.

impl From<Justify> for Value<Justify>

fn from(value: Justify) -> Value<Justify>

Converts to this type from the input type.

impl From<Length> for Value<Length>

fn from(value: Length) -> Value<Length>

Converts to this type from the input type.

impl From<Option<Cursor>> for Value<Option<Cursor>>

fn from(cursor: Option<Cursor>) -> Value<Option<Cursor>>

Converts to this type from the input type.

impl From<Option<Image>> for Value<Option<Image>>

fn from(value: Option<Image>) -> Value<Option<Image>>

Converts to this type from the input type.

impl From<Option<u32>> for Value<Option<u32>>

fn from(value: Option<u32>) -> Value<Option<u32>>

Converts to this type from the input type.

impl From<Overflow> for Value<Overflow>

fn from(value: Overflow) -> Value<Overflow>

Converts to this type from the input type.

impl From<Point> for Value<Point>

fn from(value: Point) -> Value<Point>

Converts to this type from the input type.

impl From<RadiusToken> for Value<RadiusValue>

fn from(token: RadiusToken) -> Value<RadiusValue>

Converts to this type from the input type.

impl From<RadiusValue> for Value<RadiusValue>

fn from(value: RadiusValue) -> Value<RadiusValue>

Converts to this type from the input type.

impl From<Size> for Value<Size>

fn from(value: Size) -> Value<Size>

Converts to this type from the input type.

impl From<String> for Value<String>

fn from(text: String) -> Value<String>

Converts to this type from the input type.

impl From<bool> for Value<bool>

fn from(value: bool) -> Value<bool>

Converts to this type from the input type.

impl From<f32> for Value<f32>

fn from(value: f32) -> Value<f32>

Converts to this type from the input type.

impl From<f32> for Value<RadiusValue>

fn from(radius: f32) -> Value<RadiusValue>

Converts to this type from the input type.

impl From<u32> for Value<u32>

fn from(value: u32) -> Value<u32>

Converts to this type from the input type.