From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#42406: Mouse-wheel scrolling can be flickering Date: Fri, 18 Dec 2020 00:19:48 +0100 Message-ID: <25f0682d-5f12-4db2-a913-edd3bb8c0610@gmx.at> References: <01B63545-A435-48C5-AB62-441EAD24F24C@univie.ac.at> <8A9929A0-1C51-4CC7-9EB1-1555788465F0@univie.ac.at> <3FA2BD5E-5EAA-496E-AA2F-83810F62082C@univie.ac.at> <5945639e-0fe1-1308-e9e7-62ef44407e89@gmx.at> <8AF2FA71-E12D-414A-9224-31DCC5528BA9@univie.ac.at> <3a8d5d16-4362-a267-acc6-3f2c845fc8ed@gmx.at> <83zh2d91wh.fsf@gnu.org> <5dfe58f9-cddd-cf7b-5061-8929de3f8995@gmx.at> <83r1np8y9o.fsf@gnu.org> <8505b808-3c5b-7864-fc10-90c8e3409e61@gmx.at> <1a3b1fd6-e438-0c77-d317-576e707930a0@gmx.at> <1950D435-7BC8-41AF-99D5-FD673455B3AE@univie.ac.at> <83tusk7aro.fsf@gnu.org> <31e56bf1-203f-f895-20cd-32bab5e05988@gmx.at> <83pn3874r0.fsf@gnu.org> <5014029f-852f-e52e-3f2f-5f7deeba8d67@gmx.at> <83k0tg71mn.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; 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Thu, 17 Dec 2020 18:20:09 -0500 Original-Received: from mout.gmx.net ([212.227.15.18]:49401) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kq2Z5-0002VQ-Qh for 42406@debbugs.gnu.org; Thu, 17 Dec 2020 18:20:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1608247189; bh=hxg7WyD3zNb5K1+QOiThHTA8smM7hIaMSvBUxCpuZXM=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=aZD21sEZrhd8XHF620K20gC9pL8gExJqZ8XfUreD1EYFFMFxwSWHSaokmPOtPWxhl BFHS01cPWOW9STF/OJlhioGHrQwWJOGoUtbI/sJ5GFw8ydSOlbYGpQDwy6w8XTkG2Z +MgA6azEf6kbvztL+A0vIpk6iCS68cEZ9XgJ8JpU= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Original-Received: from [192.168.1.100] ([46.125.249.70]) by mail.gmx.com (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MnakR-1kQHzs2Sof-00jX8f; Fri, 18 Dec 2020 00:19:49 +0100 In-Reply-To: <83k0tg71mn.fsf@gnu.org> Content-Language: en-US X-Provags-ID: V03:K1:tRwj/38oNiMMwHLui3PojmR3e6agKV18P7iDiaFaw/0v0ddulHp 3ujrSNuxLeScBS9kt9ALQoOpQ8uD1/J5xnrR1zFtSyToLzd5Uagek+U8x+yYi1iZYfNIYmx EMC1gz7RYpLhJC1gv6NR81zZwnU5Pw15RB6Q2OC6TFyU9VgZqnn2awtFa7vfglnsBCKcHIo LLrD4u1ixXUeao+20KRCg== X-UI-Out-Filterresults: notjunk:1;V03:K0:enlIU+aNUgw=:fJtBfoHBIwyj/fXoFSY/WI dI6qCH+fpEuY2ZW1sXsB71l+TFqsGkfxeM90GWpkKLckSqXbJtG9CHr+U9mJ6feoOQUCIn/IA YNqhIFOm6hiSMhfPYKvtojma6YF1BOtd9hLwcKctnkwR9cJi31ozF6TkQFa02u98O0V9ZSNv2 CO4jt1OqJnF//QYlOKRXWc7qsowRpR4b7DCDU4Hvc486CDjBi7MoJbuk4YcB03yQLlDLzHOu5 83OrjZeOPAM+I5linMi/Y6M/FCkRFGp/i+R4OV6kissuiQ4j6kPFkIBcAqBg3XNQ8RMjLkMmi +N6TqbJake2XbCEP0H3tpCktWZKXpcjULmcKdYFAs9knWEGA8inEtbjT2GSlYogk78U72f24B w0H1vSNXvEOtPHBl/7Absn0hK1foUWxNlm/csss+sEgXp8VzXVKGmiSffqUetJ8wbAGds0ZJe N7ikrkEzZb31xnvxdeZoq2/oDMZR8dFR8kbKj+nXEamroWmht+CJu/v985WBRy0iMIvNrBiPJ EuidN4CAqhKMF2NITLPSuCcAyorIWdC1Jz0CsiXiS9hGH4VrBhKujHpgCTRjlhLRX4+yQKWLh qHpxKTNfoQFUfIFe+BygfT5MUSZr5SRLu74oNiK+Pv9Pg0JslvIjmAx89VZWJK3rG4n21JYyP nfI7+rVDKWd7lx+LcXM+WiDEdZB+U7M4RBsibS9i1DAfP2+arKHWuWIZmdi+4cpRLoQTxxdUP tl6BwmTBRkGHSdNTorE6OsL6xsLCBWXT3OttHzYdQ99/1/7shNHmNdB/CRVh01RW2X4UWHnY X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:196296 Archived-At: >> In the case at hand Emacs relies on redisplaying all frames when >> scrolling a window that is not on the selected frame in order to >> correctly reflect the change in the scrolled window's mode line. > > That's not my understanding. My understanding is that the user > scrolls the _selected_ window, because otherwise wset_update_mode_line > doesn't set update_mode_lines: > > static void > wset_update_mode_line (struct window *w) > { > /* If this window is the selected window on its frame, set the > global variable update_mode_lines, so that gui_consider_frame_title > will consider this frame's title for redisplay. */ > Lisp_Object fselected_window = XFRAME (WINDOW_FRAME (w))->selected_window; > > if (WINDOWP (fselected_window) && XWINDOW (fselected_window) == w) > update_mode_lines = 42; > else > w->update_mode_line = true; > } Indeed, you're right. This doesn't make any sense to me at all. Why should a non-selected frame care about whether I scrolled a window on the selected frame? >> IIUC windows_or_buffers_changed affects frames as well. For example, I >> have no idea why making a frame (in)visible should redisplay all other >> frames while moving a frame on the screen apparently does not. > > That's commented out now, Not in Fmake_frame_invisible AFAICT. > although the comment seems to hint on the > reason. martin