Op 27/11/2015 om 10:19 schreef Andrej Kacian:
Hello all,
I have a class derived from QTreeWidgetItem, and would like it to
be able to use Qt's signal/slot system.
Since QTreeWidgetItem is not itself derived from QObject, can I safely
inherit from QTreeWidgetItem and QObject at the same time? E.g.:
class MyTreeWidgetItem: public QTreeWidgetItem, public QObject
{
Q_OBJECT
...
}
Well, you will need to reverse the two. The QObject needs to be the
first of the two. Other than that, there are no reasons that won't work.
Or is there a better way to do what I described?
Perhaps, depending on what you really want to achieve. Instantiating
QObjects everywhere is quite expensive. If you have a lot of items in
your tree, it may cause performance issues.
André
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