Enum SliverGridDelegate

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pub enum SliverGridDelegate {
    FixedCrossAxisCount {
        count: usize,
        main_spacing: f64,
        cross_spacing: f64,
        child_aspect_ratio: f64,
    },
    MaxCrossAxisExtent {
        max_cross_extent: f64,
        main_spacing: f64,
        cross_spacing: f64,
        child_aspect_ratio: f64,
    },
}

Expand description

How a sliver_grid divides its cross axis into cells — Flutter’s two stock SliverGridDelegates. Spacings are logical px; child_aspect_ratio is a cell’s cross-axis extent over its main-axis extent (width over height in a vertical grid).

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FixedCrossAxisCount

Exactly count cells per row.

Fields

§count: usize

§main_spacing: f64

§cross_spacing: f64

§child_aspect_ratio: f64

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MaxCrossAxisExtent

As few cells per row as keep each one at most max_cross_extent across: ceil(cross / (max_cross_extent + cross_spacing)), at least one.

Fields

§max_cross_extent: f64

§main_spacing: f64

§cross_spacing: f64

§child_aspect_ratio: f64

Trait Implementations§

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impl Clone for SliverGridDelegate

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fn clone(&self) -> SliverGridDelegate

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Copy for SliverGridDelegate

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impl Debug for SliverGridDelegate

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

Formats the value using the given formatter. Read more

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impl Default for SliverGridDelegate

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fn default() -> SliverGridDelegate

Two square cells per row, no spacing.

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impl PartialEq for SliverGridDelegate

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fn eq(&self, other: &SliverGridDelegate) -> bool

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more

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impl StructuralPartialEq for SliverGridDelegate

Auto Trait Implementations§

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impl UnwindSafe for SliverGridDelegate

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> Brush for T
where T: Clone + PartialEq + Default + Debug,

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync> ⓘ

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

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