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Re: Cursor drawing
From: |
Stefan Monnier |
Subject: |
Re: Cursor drawing |
Date: |
Sat, 22 Dec 2018 11:43:31 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
> This kind of drawing cannot be part of the display engine, since you
> want to draw over the text, and thus redisplay will overwrite portions
> of your arrows.
That's why I was suggesting a separate layer.
> And probably also remove those at the beginning of each redisplay
> cycle, to avoid leaving artifacts on screen when/if redisplay decides
> to scroll.
Another way to look at it is that scrolling the display's pixels can
only be used when both layers (the glyph-matrix and the overlay) were
moved together.
Stefan
- Re: Cursor drawing, (continued)
- Re: Cursor drawing, Stefan Monnier, 2018/12/20
- Re: Cursor drawing, Eli Zaretskii, 2018/12/20
- Re: Cursor drawing, Stefan Monnier, 2018/12/20
- Re: Cursor drawing, Elias Mårtenson, 2018/12/20
- Re: Cursor drawing, Eli Zaretskii, 2018/12/21
- Re: Cursor drawing, Elias Mårtenson, 2018/12/21
- Re: Cursor drawing, Eli Zaretskii, 2018/12/21
- Re: Cursor drawing, Clément Pit-Claudel, 2018/12/21
- Re: Cursor drawing, Eli Zaretskii, 2018/12/21
- Re: Cursor drawing, Eli Zaretskii, 2018/12/21
- Re: Cursor drawing,
Stefan Monnier <=
- Re: Cursor drawing, Eli Zaretskii, 2018/12/22
Re: Process: Determining the origin of a command loop., Keith David Bershatsky, 2018/12/20