GNU bug report logs - #47360
27.1; using 'bar cursor, mouseclick is rounded to the wrong char position

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Julian Rohrhuber <rohrhuber <at> protonmail.com>
Cc: larsi <at> gnus.org, 47360 <at> debbugs.gnu.org
Subject: bug#47360: 27.1; using 'bar cursor, mouseclick is rounded to the wrong char position
Date: Sat, 27 Mar 2021 22:47:41 +0300

> Date: Sat, 27 Mar 2021 17:53:41 +0000
> From: Julian Rohrhuber <rohrhuber <at> protonmail.com>
> Cc: Lars Ingebrigtsen <larsi <at> gnus.org>, Eli Zaretskii <eliz <at> gnu.org>, 47360 <at> debbugs.gnu.org
> 
> There is one more case where one can feel the difference: when selecting with the mouse and dragging to the right, the selection jumps to each character a little "too late", that is, after you have already crossed the position you want the selection to end at. You have to point to a character *after* the one you want to include. The current selection always is up to one character behind the cursor barline.  This results in a "sticky" feeling.

Yes, selection in Emacs works on per-character granularity, because it
uses the faces infrastructure.  We'd need to do something very
different to make that use pixel granularity.  Patches are welcome.

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