Struct slint::ReverseModel

pub struct ReverseModel<M>(_)
where
    M: Model + 'static;
Expand description

Provides a reversed view of another Model.

When the other Model is updated, the ReverseModel is updated accordingly.

Generic parameters:

  • M the type of the wrapped Model.

Example

Here we have a VecModel holding crate::SharedStrings. It is then reversed into a ReverseModel.

let model = VecModel::from(vec![
    SharedString::from("Lorem"),
    SharedString::from("ipsum"),
    SharedString::from("dolor"),
]);

let reverse_model = ReverseModel::new(model);

assert_eq!(reverse_model.row_data(0).unwrap(), SharedString::from("dolor"));
assert_eq!(reverse_model.row_data(1).unwrap(), SharedString::from("ipsum"));
assert_eq!(reverse_model.row_data(2).unwrap(), SharedString::from("Lorem"));

Alternatively you can use the shortcut ModelExt::reverse.

let reverse_model = VecModel::from(vec![
    SharedString::from("Lorem"),
    SharedString::from("ipsum"),
    SharedString::from("dolor"),
]).reverse();
assert_eq!(reverse_model.row_data(0).unwrap(), SharedString::from("dolor"));
assert_eq!(reverse_model.row_data(1).unwrap(), SharedString::from("ipsum"));
assert_eq!(reverse_model.row_data(2).unwrap(), SharedString::from("Lorem"));

If you want to modify the underlying VecModel you can give the ReverseModel a Rc of it:

let model = Rc::new(VecModel::from(vec![
    SharedString::from("Lorem"),
    SharedString::from("ipsum"),
    SharedString::from("dolor"),
]));

let reverse_model = ReverseModel::new(model.clone());

assert_eq!(reverse_model.row_data(0).unwrap(), SharedString::from("dolor"));
assert_eq!(reverse_model.row_data(1).unwrap(), SharedString::from("ipsum"));
assert_eq!(reverse_model.row_data(2).unwrap(), SharedString::from("Lorem"));

model.push(SharedString::from("opsom"));

assert_eq!(reverse_model.row_data(0).unwrap(), SharedString::from("opsom"));
assert_eq!(reverse_model.row_data(1).unwrap(), SharedString::from("dolor"));
assert_eq!(reverse_model.row_data(2).unwrap(), SharedString::from("ipsum"));
assert_eq!(reverse_model.row_data(3).unwrap(), SharedString::from("Lorem"));

Implementations§

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impl<M> ReverseModel<M>where M: Model + 'static,

pub fn new(wrapped_model: M) -> ReverseModel<M>

Creates a new ReverseModel based on the given wrapped_model. Alternativly you can use ModelExt::reverse on your Model.

Trait Implementations§

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impl<M> Model for ReverseModel<M>where M: Model + 'static,

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type Data = <M as Model>::Data

The model data: A model is a set of row and each row has this data
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fn row_count(&self) -> usize

The amount of row in the model
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fn row_data(&self, row: usize) -> Option<<ReverseModel<M> as Model>::Data>

Returns the data for a particular row. This function should be called with row < row_count(). Read more
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fn set_row_data(&self, row: usize, data: <ReverseModel<M> as Model>::Data)

Sets the data for a particular row. Read more
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fn model_tracker(&self) -> &dyn ModelTracker

The implementation should return a reference to its ModelNotify field. Read more
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fn iter(&self) -> ModelIterator<'_, Self::Data> where Self: Sized,

Returns an iterator visiting all elements of the model.
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fn as_any(&self) -> &(dyn Any + 'static)

Return something that can be downcast’ed (typically self) Read more

Auto Trait Implementations§

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impl<M> !RefUnwindSafe for ReverseModel<M>

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impl<M> !Send for ReverseModel<M>

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impl<M> !Sync for ReverseModel<M>

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impl<M> Unpin for ReverseModel<M>

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impl<M> !UnwindSafe for ReverseModel<M>

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

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

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, Global>) -> Rc<dyn Any, Global>

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ModelExt for Twhere T: Model,

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fn row_data_tracked(&self, row: usize) -> Option<Self::Data>

Convenience function that calls ModelTracker::track_row_data_changes before returning Model::row_data. Read more
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fn map<F, U>(self, map_function: F) -> MapModel<Self, F>where Self: Sized + 'static, F: Fn(Self::Data) -> U + 'static,

Returns a new Model where all elements are mapped by the function map_function. This is a shortcut for MapModel::new().
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fn filter<F>(self, filter_function: F) -> FilterModel<Self, F>where Self: Sized + 'static, F: Fn(&Self::Data) -> bool + 'static,

Returns a new Model where the elements are filtered by the function filter_function. This is a shortcut for FilterModel::new().
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fn sort(self) -> SortModel<Self, AscendingSortHelper>where Self: Sized + 'static, Self::Data: Ord,

Returns a new Model where the elements are sorted ascending. This is a shortcut for SortModel::new_ascending().
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fn sort_by<F>(self, sort_function: F) -> SortModel<Self, F>where Self: Sized + 'static, F: FnMut(&Self::Data, &Self::Data) -> Ordering + 'static,

Returns a new Model where the elements are sorted by the function sort_function. This is a shortcut for SortModel::new().
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fn reverse(self) -> ReverseModel<Self>where Self: Sized + 'static,

Returns a new Model where the elements are reversed. This is a shortcut for ReverseModel::new().
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more