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Qt-interest Archive, July 2007
QGraphicsItemGroup problem

Message 1 in thread

Hi All,
 
I am trying to create an item group in the QGraphicsView.
Unlike the default behaviour, I would like to show individual items to
be also shown as selected
when the group is selected. OR once group is selected, each individual
items also can be selected.
 
I have tried:- 
1. setHandlesChildEvents(false);

2. I have tried doing :-

QVariant ItemGroup::itemChange ( GraphicsItemChange change, const
QVariant & value )
{
    QVariant ret = QGraphicsItemGroup::itemChange(change, value);
    if (change == ItemSelectedChange && scene()) 
    {
        bool isSelected = value.toBool();
        if(isSelected == true)
        {
            QPainterPath path = shape();    // Line A
            QGraphicsScene * s = scene(); // Line B
            s->setSelectionArea(path);        // Line C
        }
        else
        {
 
        }
    }
    return ret;
}
This gives wierd results with line A, B and C beign executed infinite
times, I dont know why, maybe its a bug ?
 
Can anyone suggest, how to do this ?
 
Regards
Prateek