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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: Selection threshold with mouse
Date: Sun, 20 Jul 2014 11:37:34 -0400	[thread overview]
Message-ID: <jwvsilwxcxk.fsf-monnier+gnu.emacs.help@gnu.org> (raw)
In-Reply-To: mailman.5763.1405868682.1147.help-gnu-emacs@gnu.org

> That's the "silly iteration" I had in mind: the 2nd part of this is
> the tricky one, because all we know from posn-at-x-y and its ilk is
> the pixel width of the object at the coordinates we pass to the
> function; we don't know the coordinates where the object starts.

Hmm... but don't the display matrices contain the needed info (i.e. the
"left-pixel boundary position"), since it's needed to react to an
expose event?

> Actually, I disagree: every other GUI app I could try behaves like the
> OP asked by default, so I see no reason for Emacs to offer an option
> here.

They do, but not for all operations.  E.g. if you click on the rightmost
pixel of a hyperlink, your browser will happily consider that the click
was on the hyperlink, not on the position right after that one.


        Stefan


  parent reply	other threads:[~2014-07-20 15:37 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-19  8:32 Selection threshold with mouse Tak Kunihiro
2014-07-19 17:31 ` Drew Adams
2014-07-19 23:52   ` Tak Kunihiro
2014-07-20  1:22     ` Stefan Monnier
2014-07-20  4:23       ` Eli Zaretskii
     [not found]       ` <mailman.5728.1405830249.1147.help-gnu-emacs@gnu.org>
2014-07-20 14:37         ` Stefan Monnier
2014-07-20 15:04           ` Eli Zaretskii
     [not found]           ` <mailman.5763.1405868682.1147.help-gnu-emacs@gnu.org>
2014-07-20 15:37             ` Stefan Monnier [this message]
2014-07-20 16:24               ` Eli Zaretskii
     [not found]               ` <mailman.5768.1405873481.1147.help-gnu-emacs@gnu.org>
2014-07-20 16:44                 ` Stefan Monnier
2014-07-20 17:21                   ` Eli Zaretskii
2014-07-21 14:20                     ` Stefan Monnier
2014-07-21 15:31                       ` Eli Zaretskii
2014-07-23  0:27       ` Tak Kunihiro
2014-07-25  8:41         ` Eli Zaretskii
2014-07-20  1:26     ` Michael Heerdegen
     [not found] ` <mailman.5704.1405791121.1147.help-gnu-emacs@gnu.org>
2014-07-19 18:26   ` Barry Margolin
2014-07-19 18:47     ` Eli Zaretskii
     [not found]     ` <<837g395gp2.fsf@gnu.org>
2014-07-19 19:41       ` Drew Adams

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