bug#17788: 24.3; ruler-mode: column indicators "hop" left if you drag them diagonally

[Stephen Berman]

On Mon, 16 Jun 2014 22:26:40 +0200 Andrea Rossetti <andrea.rossetti@gmail.com> 
wrote:

> martin rudalics <rudalics@gmx.at> writes:
>
>> After applying your earlier patch this won't apply any more.  Kindly
>> provide a new one against the present trunk.
>>
>
> Hi! I did the following:
>
> - cloned http://git.savannah.gnu.org/cgit/emacs.git
>   at commit 19428947aaf2c68ad735a65bdc02d0523b5d15ae 
>   (Mon Jun 16 12:49:09 2014 +0400)
>
> - applied the same changes as before, additionally taking into account
>   Stephen's observations about left scroll-bar and a compilation error
>
> - checked that the modified ruler-mode.el compiles with no errors
>   and no warnings
>   
> - rebuilt the patch with "git format-patch 
> 19428947aaf2c68ad735a65bdc02d0523b5d15ae"
>
>   The new tentative patch is attached here below:

I confirm that starting Emacs with -Q and this patch, # in the ruler no
longer jumps when mouse-2 is dragged straight down out of the ruler.
(For some reason, patch failed to apply the first hunk, but I applied it
by hand and rebuilt Emacs without a problem or warning.)

Steve Berman