QGraphicsTextItem is blurring at certain regions

[Lykurg]

but the index of stackedWidget were probed to communication past one month ..
currently i cant change that one ..

Ok, that's tough luck, but could you at least change the buttons around the stacked widget? because then you would have a QWidget with inside layouted buttons and a stacked widget, without a graphics view inside a view. That would be also good for the speed performance...

EDIT: see attached mockup

[wagmare]

yes i will and thanks for whole suggestion and now i will change it ...