CODEWITHSUNDEEP
c++qtqt5qpropertyanimation
ManuelSchneid3r
ManuelSchneid3r

Reputation: 16121

Animate the resizing of a QListView

I have a QListView which I can fit to contents by calling updateGeometry. Now I want to animate it. I cant use the resizeEvent, since it is calles after the widget has been resized. What is the proper place to start this animation, ergo which members are called internally?

Upvotes: 0

Views: 175

Answers (1)

pragmanomos
pragmanomos

Reputation: 1006

Well, you should leave the QListView quite and focus instead on its model. Let's say that you have something like:

QListView *myListView;

In that case you should pay attention to its model, which means:

QAbstractItemModel *myListModel(myListView->model());

You can connect some slot (depending on when you want to start the animation, before or after the data is being fetched by the views), maybe something like:

connect(myListModel, &QAbstractItemModel::rowsAboutToBeInserted, myHandlingObject, &MyHandlingObjectClass::myHandlingSlot);

or:

connect(myListModel, &QAbstractItemModel::rowsInserted, myHandlingObject, &MyHandlingObjectClass::myHandlingSlot);

Inside MyHandlingObjectClass::myHandlingSlot() slot you will eventually start a QPropertyAnimation. I think it's not much more than this. Hope it helps!

Upvotes: 1

Related Questions