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bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not
From: |
martin rudalics |
Subject: |
bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame |
Date: |
Wed, 04 Oct 2017 11:04:31 +0200 |
>> From the attached image it's easy to see that both fringes of the window
>> on the right miss one pixel.
>
>
> I fail to see that without the diff-hl-mode example.
I see that the continuation arrows in the rightmost fringe have their
tips truncated. Do you really need diff-hl-mode enabled to see that?
>> Please try:
>>
>> - C-x 3 with emacs -Q
>>
>> - C-x 3 with emacs -Q and scrollbars disabled
>>
>
> I tried that, but nothing stood out.
Can you try again with a buffer with wide enough lines to see the
continuation arrows in the window on the right? This is important
because it would constitute another, probably different bug.
> Below images and animation are after following the emacs -Q recipe I posted
> earlier - https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27830#5
>
>
> [image: image.png]
>
> As seen above (figure attached), any window not sharing the edge the with
> frame sees that ~1 pixel truncation.
I see: The first pixel of each fringe in a window that has another one
on the left gets overwritten by the "vertical window border". With
window dividers or scroll bars on, that border is not drawn. I think we
should remove that border completely and draw a one pixel wide window
divider instead when scroll bars are disabled in a window and dividers
are off. Tricky because scroll bars can be turned off individually for
windows and dividers are frame wide. Strictly for Emacs 27.
As a workaround for things to come I suggest using a one pixel wide
right only window divider with scroll bars off.
> Here is the frame dump with scroll bars disabled:
>
> frame pixel: 656 x 540 cols/lines: 82 x 36 units: 8 x 15
[...]
> height header-line: 0 mode-line: 0 divider: 0
[...]
> Here's the same after *enabling* scroll bars:
>
> frame pixel: 672 x 540 cols/lines: 84 x 36 units: 8 x 15
[...]
> height header-line: 0 mode-line: 0 divider: 0
Both dumps are completely normal.
Thanks, martin
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, Kaushal Modi, 2017/10/03
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame,
martin rudalics <=
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, Kaushal Modi, 2017/10/04
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, Kaushal Modi, 2017/10/04
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, martin rudalics, 2017/10/05
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, Eli Zaretskii, 2017/10/05
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, Kaushal Modi, 2017/10/05
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, martin rudalics, 2017/10/06
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, Eli Zaretskii, 2017/10/06
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, martin rudalics, 2017/10/07
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, Eli Zaretskii, 2017/10/07
- bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame, martin rudalics, 2017/10/07