GNU bug report logs - #18789
24.4; Can't resize frame pixelwise on w32, causing partial columns when using non-standard font

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From: Eli Zaretskii <eliz <at> gnu.org>
To: martin rudalics <rudalics <at> gmx.at>
Cc: 18789 <at> debbugs.gnu.org, andlind <at> gmail.com
Subject: bug#18789: 24.4; Can't resize frame pixelwise on w32, causing partial columns when	using non-standard font
Date: Wed, 22 Oct 2014 17:59:34 +0300

> Date: Wed, 22 Oct 2014 15:43:01 +0200
> From: martin rudalics <rudalics <at> gmx.at>
> 
>  >      emacs -q
>  >
>  >      Switch to *scratch*: C-x b RET
>  >
>  >      Evaluate:
>  >      (set-default-font
>  >        (create-fontset-from-ascii-font
>  >         "-raster-Terminal-bold-r-normal-normal-8-60-96-96-c-*-ms-oemlatin"))
>  >
>  >      Split the window using: C-x 3
>  >
>  >      Insert a long line: C-u 37 x
>  >
>  >      Here, the cursor is at the end of the line in the left window, it is
>  > rendered in the right fringe. (OK)
>  >
>  >      Go to the other window: C-x o
>  >
>  >      Place the cursor at the end: C-x >
>  >
>  >      Here, the cursor is visible in the partially visible column. (NOT OK)
> 
> Sorry.  Such problems can't be avoided, even without fringes and scroll
> bars, when the window size is not a multiple of the size of the default
> font.

Moreover, the frame size after evaluating the
create-fontset-from-ascii-font form is odd, so "C-x 3" cannot possibly
create 2 windows of the same width.  And that is what you see: one
window has one pixel more in its width, so we show the corresponding
part of the cursor.  I don't see anything wrong with that.

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