pub struct ModelRc<T>(_);
Expand description
A Reference counted Model
.
The ModelRc
struct holds something that implements the Model
trait.
This is used in for
expressions in the .slint language.
Array properties in the .slint language are holding a ModelRc.
An empty model can be constructed with ModelRc::default()
.
Use ModelRc::new()
To construct a ModelRc from something that implements the
Model
trait.
It is also possible to use the From
trait to convert from Rc<dyn Model>
.
Implementations
Trait Implementations
impl<T> Model for ModelRc<T>
impl<T> Model for ModelRc<T>
type Data = T
type Data = T
The model data: A model is a set of row and each row has this data
fn row_data(&self, row: usize) -> Option<<ModelRc<T> as Model>::Data>
fn row_data(&self, row: usize) -> Option<<ModelRc<T> as Model>::Data>
Returns the data for a particular row. This function should be called with
row < row_count()
. Read morefn set_row_data(&self, row: usize, data: <ModelRc<T> as Model>::Data)
fn set_row_data(&self, row: usize, data: <ModelRc<T> as Model>::Data)
Sets the data for a particular row. Read more
fn model_tracker(&self) -> &dyn ModelTracker
fn model_tracker(&self) -> &dyn ModelTracker
The implementation should return a reference to its
ModelNotify
field. Read moreAuto Trait Implementations
impl<T> !RefUnwindSafe for ModelRc<T>
impl<T> !Send for ModelRc<T>
impl<T> !Sync for ModelRc<T>
impl<T> Unpin for ModelRc<T>
impl<T> !UnwindSafe for ModelRc<T>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
impl<T> ModelExt for Twhere
T: Model,
impl<T> ModelExt for Twhere
T: Model,
fn row_data_tracked(&self, row: usize) -> Option<Self::Data>
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 morefn map<F, U>(self, map_function: F) -> MapModel<Self, F>where
Self: 'static + Sized,
F: 'static + Fn(Self::Data) -> U,
fn map<F, U>(self, map_function: F) -> MapModel<Self, F>where
Self: 'static + Sized,
F: 'static + Fn(Self::Data) -> U,
Returns a new Model where all elements are mapped by the function
map_function
.
This is a shortcut for MapModel::new()
. Read morefn filter<F>(self, filter_function: F) -> FilterModel<Self, F>where
Self: 'static + Sized,
F: 'static + Fn(&Self::Data) -> bool,
fn filter<F>(self, filter_function: F) -> FilterModel<Self, F>where
Self: 'static + Sized,
F: 'static + Fn(&Self::Data) -> bool,
Returns a new Model where the elements are filtered by the function
filter_function
.
This is a shortcut for FilterModel::new()
. Read moreimpl<T> NoneValue for Twhere
T: Default,
impl<T> NoneValue for Twhere
T: Default,
type NoneType = T
fn null_value() -> T
fn null_value() -> T
The none-equivalent value.
impl<T> Pointable for T
impl<T> Pointable for T
sourceimpl<R, P> ReadPrimitive<R> for Pwhere
R: Read + ReadEndian<P>,
P: Default,
impl<R, P> ReadPrimitive<R> for Pwhere
R: Read + ReadEndian<P>,
P: Default,
sourcefn read_from_little_endian(read: &mut R) -> Result<Self, Error>
fn read_from_little_endian(read: &mut R) -> Result<Self, Error>
Read this value from the supplied reader. Same as
ReadEndian::read_from_little_endian()
.sourcefn read_from_big_endian(read: &mut R) -> Result<Self, Error>
fn read_from_big_endian(read: &mut R) -> Result<Self, Error>
Read this value from the supplied reader. Same as
ReadEndian::read_from_big_endian()
.sourcefn read_from_native_endian(read: &mut R) -> Result<Self, Error>
fn read_from_native_endian(read: &mut R) -> Result<Self, Error>
Read this value from the supplied reader. Same as
ReadEndian::read_from_native_endian()
.