Cleaning QFormLayout

Zoptune

Hi,

I'm using a QFormLayout to display rows of QString and QSpinBox
I need to clean the content of my layout to add new row.

I have tried things like removeItem(itemAt()) but it's not working, i still have some labels superposition.

Thx

EDIT : I have also tried takeAt(0) but i have error like : QFormLayout::takeAt: Invalid index 0

mrjj

Hi
The layout owns the widgets so u should use
takeAt to transfer ownership back if you plan on deleting the
"row" widgets u remove.

try this for clean all.

void clearLayout(QLayout *layout) 
{
    if (layout) {
        while(layout->count() > 0){
            QLayoutItem *item = layout->takeAt(0);
            delete item->widget();
            delete item;
        }
    }
}

Zoptune

Ha ok !

I have also tried to delete the item but i thought i was automatically deleting the widget.

Thx :)

mrjj

@Zoptune

One would assume that QLayoutItem owns the widget and deletes it.
I never tested it :)

Sounds like it wont ?

Zoptune

@mrjj
Tried by adding comment to : delete item->widget();

Didn't work

mrjj

@Zoptune
Ok, thanks.
so QLayoutItem dont own the widget, it really is the layout. :)

SGaist

Hi,

There's currently no way to directly remove or remove + delete content of a QFormLayout. But there's a work in progress patch for that.