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
sourceimpl<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
sourcefn 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 more
sourcefn 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
sourcefn model_tracker(&self) -> &dyn ModelTracker
fn model_tracker(&self) -> &dyn ModelTracker
The implementation should return a reference to its ModelNotify
field. Read more
sourcefn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Return something that can be downcast’ed (typically self) Read more
sourcefn iter(&self) -> ModelIterator<'_, Self::Data>ⓘNotable traits for ModelIterator<'a, T>impl<'a, T> Iterator for ModelIterator<'a, T> type Item = T;
fn iter(&self) -> ModelIterator<'_, Self::Data>ⓘNotable traits for ModelIterator<'a, T>impl<'a, T> Iterator for ModelIterator<'a, T> type Item = T;
Returns an iterator visiting all elements of the model.
Auto 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 T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
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> ModelExt for T where
T: Model,
impl<T> ModelExt for T where
T: Model,
sourcefn 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 [Self::row_data
]. Read more
impl<T> NoneValue for T where
T: Default,
impl<T> NoneValue for T where
T: Default,
type NoneType = T
fn null_value() -> T
fn null_value() -> T
The none-equivalent value.
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more