How to update QListWidgetItem geometry.

tokafr

Hello
I am using QListWidget to have a list of widgets. to fill this list I use QListWidgetItem and set sizeHint to it.

listWidget_ = new QListWidget(this);

void addWidgetToList(QWidget *widget)
{
    QListWidgetItem wItem  = new QListWidgetItem(listWidget_);
    wItem -> setSizeHint(widget -> sizeHint());
    listWidget_ -> addItem(wItem);
    wItem -> setItemWidget(widget);
}

on other part of code I need to change the sizeHint of items and I set different sizeHints to all items in list.
but they don't update the geometry but wItem -> sizeHint() shows new correct value.
I tried to call update, layout() -> invalidate/activate, updateGeometry repaint but they didn't affect.
any idea?

m.sue

Hi,
it will probably work if you remove the item and add it again with the different size hint.
-Michael.

SGaist

Hi,

Why not use a QScrollArea for that ?

A container QWidget with a QVBoxLayout on it and you have pretty much the behavior you want without having to play with the item size hint.

VRonin

The widget sizeHint is probably not that important to the QListWidget.

It might be worth switching to a custom delegate instead... see QStyledItemDelegate

tokafr

Well seems that it needs to emit model's layoutChanged() to do what I need. I created new class which inherits QListWidget and there I connected signal to layoutChanged signal of model() object and it worked.