Proper way to add an item to StandardListView?

[AllenDang]

My current implementation kind of works, but not ideal, here is the code.

let mut logs: Vec<StandardListViewItem> = ui.get_log_model().iter().collect();
logs.push(StandardListViewItem {
    text: some_text.clone().into(),
});

let logs_model = Rc::new(slint::VecModel::from(logs));
ui.set_log_model(logs_model.into());

    in property <[StandardListViewItem]> log_model;
    ...
        StandardListView { 
          height: 200px;
          model: root.log_model;
          viewport-y: min(0px, self.visible-height - self.viewport-height);
        }

It's kind of wired, get whole vector of StandardListViewItem, push new, set the vector to the model, maybe I'm not doing it correct?

Ideally I should do something like ui.get_log_model().push(...).

[bjorn]

What does your ui.get_log_model() return? Did you try using VecModel::push?

[AllenDang]

[ogoffart]

The idea is that you would keep a reference to the VecModel and you can add your log like that.

You can also do ui.get_log_model().as_any().downcast_ref::<slint::VecModel<StandardListViewItem>>() to get the VecModel back (assuming you initialized the model with a VecModel before)

[AllenDang]

I thought the initialization is done by slint internally, should I manually set that from rust side?

[ogoffart]

I thought the initialization is done by slint internally, should I manually set that from rust side?

Yes, slint could also create something else than a VecModel

[AllenDang]

I see, the conversion works if I manually initiate the model, thx!

[AllenDang]

Is that a potential bug for slint? I define the property as property <[StandardListItem>] but it doesn't initiate as that?

[ogoffart]

Well, Slint could use any kind of model which might not be a VecModel. For example, it could use a model to a static array, or an empty model.