graphicsview Problem

[tampstaffs]

Hi,

The problem is That I have a structure like this:

I have a QGraphicsWdget which is more or less acting as a container for all me items.
Than I have used qgridlayout and added all me items to it .this gridlayout is than set as child to the qgraphicswidget.

Now when i update any thing,its trying to paint all the scene items.I saw that using cache to gQGraphicItem would reduce repainting.
If so than where would be the best place to have it,QGraphicsWidget or to the items themselves??

[wysota]

Now when i update any thing,its trying to paint all the scene items.

That's probably the graphics widget item has to be repainted and that forces a repaint of all items that occupy its boundingRect() which means all items in your case.

If so than where would be the best place to have it,QGraphicsWidget or to the items themselves??

If all you want is a grid and you don't intend to resize the widget or anything, I'd suggest getting rid of QGraphicsWidget and positioning items yourself. Then only those items that get modified will get repainted.