[KevinH]

@DiapDealer
Your idea about focus was right. It seems if CV loses the focus because any other dialog opens over it when you try to close the dialog, it causes focus to be regained which will completely rehighlight the entire document which causes a big delay.

I would think that there is no need to rehighlight (synchronously) the entire document when focus is lost then gained. Widget backingstore should take care of that without having to redo the complete highlighting.

So I have just pushed yet another change to master to disable this hopefully unneeded re-syntaxhighlighting with every change in focus in CV.

With this change, I can open and close dialogs that partially cover CV with no more spinning ball.

This is even with Preview open, but spellchecking and open/close tag pair highlighting disabled.

Please give it a try. I have my fingers crossed.

KevinH