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bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs
From: |
Eli Zaretskii |
Subject: |
bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs |
Date: |
Tue, 29 Oct 2019 14:01:05 +0200 |
> From: Juri Linkov <juri@linkov.net>
> Cc: 37667@debbugs.gnu.org
> Date: Tue, 29 Oct 2019 00:38:19 +0200
>
> I'm still trying to understand why truncation flags are not set in the
> tab-line.
> Test case:
>
> 0. emacs -Q
> 1. M-x global-tab-line-mode RET
> 2. C-x b 01234567890123456789012345678901234567890123456789 RET
> more buffers with long names might be needed
> to cause the tab-line truncation
>
> 3. M-x dump-glyph-row RET
>
> shows no truncation:
>
> Row Start End Used oE><\CTZFesm X Y W H V A P
> ==============================================================================
> 0 0 0 111 110000000000 0 0 677 16 0 12 9
>
> i.e. the columns '>' ('row->truncated_on_right_p')
> and '<' ('row->truncated_on_right_p') both have values '0'.
>
> Is this a bug? Or maybe there is another way to detect tab-line truncation
> in the glyph matrix?
These flags are reset because display_mode_line forcibly resets them:
it.glyph_row->full_width_p = true;
it.glyph_row->continued_p = false;
it.glyph_row->truncated_on_left_p = false;
it.glyph_row->truncated_on_right_p = false;
I think you will find that before the last two lines are executed, the
truncated_on_right_p flag is set for the tab-line in your example.
I think we need to make a change there to not reset the last 2 flags
when we are displaying the tab-line. (The full_width_p flag should
still be set, because we don't want margin areas on the tab-line.)
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, (continued)
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Eli Zaretskii, 2019/10/17
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/17
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Eli Zaretskii, 2019/10/18
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/20
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Eli Zaretskii, 2019/10/21
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/21
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Eli Zaretskii, 2019/10/22
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/22
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Eli Zaretskii, 2019/10/23
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/28
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs,
Eli Zaretskii <=
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/29
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Eli Zaretskii, 2019/10/30
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/30
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Eli Zaretskii, 2019/10/31
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/31
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Juri Linkov, 2019/10/30
- bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, Eli Zaretskii, 2019/10/31
bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs, martin rudalics, 2019/10/11