ReverseModel[T]

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from slint import ReverseModel

python

ReverseModel is a Model that provides the rows of a source model in reverse order.

The ReverseModel follows the changes of the source model. Setting a row sets the corresponding row of the source model.

numbers = slint.ListModel([1, 2, 3])
reversed_numbers = slint.ReverseModel(numbers)
assert list(reversed_numbers) == [3, 2, 1]

python

Bases: _WritableAdapterModel[T]

Properties

source_model

source_model

Methods

notify_row_changed

notify_row_changed(row: int) -> None

Call this method from a sub-class to notify the views that a row has changed.

notify_row_removed

notify_row_removed(row: int, count: int) -> None

Call this method from a sub-class to notify the views that count rows have been removed starting at row.

notify_row_added

notify_row_added(row: int, count: int) -> None

Call this method from a sub-class to notify the views that count rows have been added starting at row.

set_row_data

set_row_data(row: int, value: T) -> None

Sets the row of the source model that corresponds to row. Raises IndexError if row is out of range.

row_count

row_count() -> int

row_data

row_data(row: int) -> T | None

push_row

push_row(value: T) -> None

Add a new row to the model with the provided value. The default implementation calls insert_row with the row count.

remove_row

remove_row(row: int) -> None

Remove the row at the given index. Raises an exception when the model rejects the modification. The default implementation raises NotImplementedError. A model that supports removing rows should also call notify_row_removed.

insert_row

insert_row(row: int, value: T) -> None

Insert a new row at the given index. Raises an exception when the model rejects the modification. The default implementation raises NotImplementedError. A model that supports inserting rows should also call notify_row_added.