From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.devel Subject: Re: Emacs's set-frame-size can not work well with gnome-shell? 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:244421 Archived-At: > > Mostly I don't care because normal Emacs frames > > always flicker during resizing anyway. > > Even when resizing doesn't actually change the size? You mean when making a frame invisible and then visible? Here it's always changing the frame size itself that causes flickers, mostly when redisplaying the scroll bars and mode lines. >> > It doesn't flicker always, but like 3 out of 4 times is does. And running resize-test in a loop always shows 1-2 flickers, at least. >> >> So when you now resize a child frame by dragging its corners, it usually >> flickers. > > I still can't resize it by dragging its corners. The "dragging" code doesn't know to make the frame invisible/visible, and I don't know where to change that. It would be no fun anyway. > (defun resize-test (frame height) > (let ((x-wait-for-event-timeout 0.05)) > (make-frame-invisible frame) > (set-frame-height frame height) > (make-frame-visible frame))) > > I tried different values: 0.05, 0.001, 0.2, 0.5. The upshot, in this round of testing, is that it always flickers at least once. It might only flicker the mode-line and the scrollbar. Or it might flicker to show the contents of the underlying window. But that seems to happen regardless of the value above. I see. martin