From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#50660: 28.0.50; Text artifacting when the cursor moves over text under mouse face that originally displayed a box Date: Sat, 18 Sep 2021 15:48:19 +0200 Message-ID: <87y27uro4c.fsf@gnus.org> References: <87czp6ysw7.fsf.ref@yahoo.com> <87czp6ysw7.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31277"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 50660@debbugs.gnu.org To: Po Lu Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Sep 18 15:49:15 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mRaiQ-0007vj-LR for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 18 Sep 2021 15:49:14 +0200 Original-Received: from localhost ([::1]:54188 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mRaiO-00084k-4n for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 18 Sep 2021 09:49:12 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47870) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mRaiE-00084a-WB for bug-gnu-emacs@gnu.org; Sat, 18 Sep 2021 09:49:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:50582) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mRaiE-0006Em-MS for bug-gnu-emacs@gnu.org; Sat, 18 Sep 2021 09:49:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mRaiE-0001pM-9o for bug-gnu-emacs@gnu.org; Sat, 18 Sep 2021 09:49:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 18 Sep 2021 13:49:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 50660 X-GNU-PR-Package: emacs Original-Received: via spool by 50660-submit@debbugs.gnu.org id=B50660.16319729116984 (code B ref 50660); Sat, 18 Sep 2021 13:49:02 +0000 Original-Received: (at 50660) by debbugs.gnu.org; 18 Sep 2021 13:48:31 +0000 Original-Received: from localhost ([127.0.0.1]:33895 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mRahj-0001oZ-3k for submit@debbugs.gnu.org; Sat, 18 Sep 2021 09:48:31 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:58002) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mRahg-0001oI-K9 for 50660@debbugs.gnu.org; Sat, 18 Sep 2021 09:48:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=htXAeEdTwzn5pLiPfD+qWD6Lezc3MB5/u2vmu5Fp0eU=; b=Di3QTYSdD62LA4dali9Zn/4ulK tuLZiTT+2r3kTsn1Djl4cb4jjZvFWsE73IAQ9/6+p7OUt8vUrXzM+pTKtTdeUxrADXqrfB5vtRdPy 0WfLTT22tWEajHCTLlZsYiMBHS2yiiTUALULZ6Mm1X7PE5UWdc5fTsjxeW4s6wug/jEk=; Original-Received: from [84.212.220.105] (helo=elva) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mRahX-0003qE-IC; Sat, 18 Sep 2021 15:48:22 +0200 In-Reply-To: <87czp6ysw7.fsf@yahoo.com> (Po Lu's message of "Sat, 18 Sep 2021 20:23:20 +0800") 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:214629 Archived-At: --=-=-= Content-Type: text/plain Po Lu writes: > If you're lucky, you will be able to observe artifacting, usually around > the characters "O", "Q", "R", "W", "X", "Y", and/or "Z". If you're not, > you can usually at least observe the text being redrawn in a manner > inconsistent with its surroundings, where characters surrounding the > cursor appear to be spaced overly close to or overly far from their > surroundings. I can't reproduce this -- perhaps it's dependent on which fonts are used? I do see one odd thing here. When marking a region with the mouse, I get this: --=-=-= Content-Type: image/png Content-Disposition: inline Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAAAC0AAABrCAIAAABseZy8AAAABGdBTUEAALGPC/xhBQAAACBjSFJN AAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAABmJLR0QA/wD/AP+gvaeTAAAA EGNhTnYAAAeAAAAEsAAABpgAAAJwggJU7gAACqxJREFUaN7tmnlUk1cWwG++7IAQSCCQmIRFWseK opaUUpVaBIWqoAKWsogsomPRaaUzTjttPdbOaYceFaUCLoggKDBFtFJZVHQUsYoFLFrUYgIJiyRk YUlIAvnmj6AGSEvIGUs9k/tPOO+93O/H++697953g/Hy8gIAwLrGZhyIoKsHSXhhXnLyCZ4W9AVx i0lPj6Rf37NXHv3x25jyv8WlNajAgFB8Pzuyw0dz6ZPE1Jv9YLwgI5/DjwoLrmtIJJLiP7lFYyAA QNtSeKiyx2Lhth2B9gM1R3IMQ4D1oi2bfaZJL6RlTgpCjwPjGLiSiwcAC27gYlsDC1UNx47f0mCx mIfFRy7LDeqy8t743mIbycUDGTf6AEzioC3bEjMbL/g2rbiV/HpCPNfCwFJZe/sAANrR0YEa0mSx IGmrH0V6OS2jth/AJA6K75aEV8mi8gO55fmHqqS2fptjXiFMTg9pXkJyAFV2ab8JezHCYeWTlOQz TV6dcaxxEJR1x3NuKxnBW8JdEOO1ED1i/xJEl1anH7zeCyYJQp63YctbtgM3s7NqdP+ItDKrmAcu 695bRTdSB35m7PsrHeVX9h+s6QMTBbc+OZCmuXvwYJX0qW+0fpt1PvDLt6M2L72y84J0QhWM4KQQ JqLkkX02bvcZMye58XV2jVEcwUztL7nffNepb3vq+tycm0s+fD0hgVubenNgAhXWdrYIANmF6+8y bk4oNpIDMxLHplqQPwKEmcPMYeZ4ITkwdGLdY80j9uxUOvHZ6JAk8aeWBRi7rJdtfH7meSC09Dku TfrI6EBI073lKsvS2bPKiZKNdS3zDWunZrzq2mgMB47JqZU88OkQcKkzbuJ0Y9qXhIIFQ7hGN3Y9 Gd/h1D1LKF7d5XiPQX6aplFEQr9BENPZF0kAQHxAo6nH6FX3cXtVCAFv7PGLw9qUsGw9H0lXt/c2 cKzVABhF5zqRWmXjfMoODwCPHdnVop+Xdgm87V+6jtdxyld29OJxdiVMKw0AgOVllzEni3px80/e QLjBYfCMt49+KrvEGrEVCQKUKIDqzdYuJjKtlGM/ctJirL5n2fUPy1d19OownDqFPhrkAZP1I9aw ToqIv6ZPK6dximywk7JTQg2HyQPFsjYRu0ewsh/lM52v6FmLwpZ1dhqiexegEa/pUqBkx2L7X8nY NOJ3BXISnpbPpigm6y8oiV7gSMb1CrbzpSQLxgk6aXTGTrjKdmxHB5YLxfM72j20hOtsJwHGMIVX q2DOMP4HZ9YdLMBkOQAwAgajHtEStdg6ppNw3DNQC6diewJJyk8QqZW2089YG/Z3S0lbuHSol+Zc SMGZGD9oom4PLQAMe4gk1oYWNjOZTQiKoJYVLKrh9G9IFtYmmYanFrAm80ZGcahFEcI+HMnxhBOZ KBOskQ8bWIondWMBMEQR0aCm4VmCVm8N/pYzuwEHYBLHkFer8BUt4RqHeY3BqsVrvFvbZ6CT00Ps FUSK1X1UzimKCRQACICFrC1MNtRPZZ+2RgCxOcO0GVR1R3QqMMZr0faF8EVUvF0B23YATBJE2xvS 2mONtSlh2epeaq89q9ICmJ1tS1TGUrgI+b4qfB2HU48DEwUn5C9SIy1sTi3+6Ri5ikVbdF+0sq2n zp06cWBWdYd3DyJYMlEmiJWNtalGh+n1lsZwdKtQC2aBA1HfHjTWzFKKZINMsFZGOUaZKA5oNNYo wLDSQ6wcN0eSUozjMNcNZo4XgQO3ZMmS5/oABoMRGRkZFBQ09f5CJpOVSuXUv5empqYXxz4+C/AU vfvPYNq9gwkpZ7qeTdj4fpT90aKh6t3bbwekp3CVFZ/G7rmlf+Jg3WMPH1hH/yUnKbmw0/fj7/++ 0OAD1Jd2zdrYMjFHR1tD/jdVi3cHxCS+Wf355ZHjhDgnNnGRVf+NLzNrhHL+yVXz4/w3hJbczuc/ zRepgQmrmZiukowSIQpI152qqsExlmc/+01PJ6xUIjVqP4RCUPRnZ9W8vmNhXMzc2vRGFQAy451N y+2VdXu+qZYBQPvpjLNBe9eExS8t+6RSpjM9r+hoT4L88tH8uxoA0DZ/93XzaAp60FeH/KDnwv6C ZqPiR3s/AMirM7LrB+3f3hzqjAA4rvhzmIvmTs7+SvHI3t47efiynMyNiZpLAABA2Gvj/Snqn44f vfYrV7bU5dvi55IkFfuy6oxLSJB23aeoIv1E87BL+KbAGW8lRb+C3s9NO/f42Rncf+1I7h01NShx NRMDFL/4UBfgFWWe7/4VCv/kxAUWPRf2HzL6mh3pGfkDFZYc+Hcrbt7G1G0+5F8K00qEo0sHUXlm MQ/jHh4XsDBmPZcsrswseqQ1qJLi+17Sa5aSS/syfjD+glvPb6e05aDHMaUth2ccU9tyQJ6+1Klt Oeg4pr7lgADAH6HlgAP8n553y2Hnx0acL+6Ryc+75bAXYHgijt8jD2ppaXFzczM6fkyp/D9xeHh4 TLgGY2dn91wh5syZU1BQEBwcPPV2araPF5cDI5SILWD4QfbmrYWCkYBK8fs8J4VLBs39vKPiNZve sASQlu1Yv79e8+RbrKiMzGhXBIaaM+M+Ub9fvHWeYe3qS7tWflVr1H7kN2sAsC9FJPpRdCPE+Rti uWQA6DqbUXwmr7QNBQBb/4jl1CffIXuvC3ZFAEBSlXfu8f9mP7AKlbvv8lnWeObMac3nbnSiLu/s 3OpNwYCset/uUr5a1iJ3DlrMIWAd2Zjb390WowD0kA+3+dAQGLp37Ivj9wZQ0GpELY160o6f4e5A AIBh/pWisiaZMRw4zf2CwxeX7lxKoQYkhp8RypLCOAiA+k7u0ZoBAICBq3mlrQujOBh6UMSSk59e GJwXvnYmFgB6KvO/fwwAmoeXTj7U0+gQuDvMCgBA/bAgtZhvvJ0qa7Nz6gcBEE7YrtQYTyKAlleU dV40sgJtPZ13tR8ASK+Fh7hSl0X42wGA5m7hyR81482NHrQ9aYEFAKibj311ijc0KX/pqcosbNEC EO3trQGgpzJrVE2guJZXwtMCACs4ZVf4XDwA9FSeMFC8YBxXbU/wJAOAsuHwv04LtJP1Wy2/+OkG KG9kH68fXROgbaX5V/sAwMrN1QEANE2nTjaox1EwQz6In0sGgP66rNSznZO6GX8SPywdHKxG/IXm YDMuqiifbAkAgLjiRLlonCLm6pQ4DyIA9Namf10hNimOERfEbfAij4zMWLfRf9zZhwrOnP5RB8I/ d7px7GYg00P/un4WAQBk1fvSqqUAJnBg3cI3+VMBQNb8cwcKQJq/IY5LHrclipHscEAxNk1EnMNT omcSAEBUsSe9Rm5aXLdfkRTK1vnq7n8crpYDgO3SxHXuxt7Z41zCU6JeJgCgnWWpGbdM+NEWAOCs FsZHzSUAaHlFmedFCu3R4w1vbPUkTg/dtOL89lIjoiVj9QfvuuMBQNvZqvRYGzkq5xHdLq5oNqZv gYtO8H3iqzwtAIgrMotWHIx2xc+OTFh08YurE5YjdBZT16pAGN6h0d6jJ+8qSo3jQFY4AYCy9pmv annFWeViALBanBg12drSZDHnY2YOM4eZ40XnMNcNo8VcN4yzU3PdMM5vzXXDaA5z3aDHYa4b9DnM dcNopzfXDWaOF4ED/V3E3d29rKzsNzj+C2qBjxfYQopvAAAAAElFTkSuQmCC --=-=-= Content-Type: text/plain Note the little dots above to the right of the Zs. I don't think those should be there, so there might be a off-by-one error (or something) when computing something here... -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no --=-=-=--