Redrawing Widget after replacing containing Widget

[ModelTech]

I have a Widget (Parent) that has a layout in which another Widget (Child) is used. At some point, I need to replace the Child Widget by a new one and the Parent Widget needs to be redrawn. Naively, I wrote the following code as part of the Parent Widget:

delete Child;
Child = new ChildWidget();
repaint();

The problem is that the new Child is not drawn and instead the whole Child Widget area is no longer part of the layout. How can I solve this?

[VRonin]

you have yo add the new ChildWidget to the layout. You don't need to call repaint either

[SGaist]

Hi,

You're creating a new widget in the "void". You should put it in place of the old one. For example, if Child was in a layout, put the new object there.

If you must replace it like that, why not have a "reset" function in ChildWidget ? That might be less aggressive.

[ModelTech]

Ok, how can I get the position in the Layout of Parent widget?

I can do a reset as in this case the new Child concerns a completely different widget...

[ModelTech]

Ok guys, I found a solution thanks to your hints. I store the Layout and add the new Child after the old Child is deleted. This works perfectly well :)