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.