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Re: alpha support for colors
From: |
Stefan Monnier |
Subject: |
Re: alpha support for colors |
Date: |
Tue, 30 Oct 2012 09:28:40 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.2.50 (gnu/linux) |
> I think a good use case is things like flymake error faces. I want my
> error lines to be more "reddish" while still retaining the original
> font lock highlighting.
I was sold on your idea long before you suggested it (actually, I've
been wishing for it mostly to automatically create "lighter/darker"
faces and I'm not completely sure if alpha-blending can do that well).
I think to do it you'll want to look at the face merging code in
src/xfaces.c. There's already code to merge heights (where faces can
specify relative sizes or even an Elisp function that computes the new
height from the height of underlying faces), so it really shouldn't be
that hard.
There's a secondary alpha-blending issue, which I think is orthogonal,
which is how to blend foreground and background. This part would not be
handled in src/xfaces.c.
And then again there's the alpha-blending of the Emacs window with the
windows that might appear underneath, but this is yet another
orthogonal issue.
Stefan
- alpha support for colors, aaditya sood, 2012/10/29
- Re: alpha support for colors, Chong Yidong, 2012/10/29
- Re: alpha support for colors, aaditya sood, 2012/10/30
- Re: alpha support for colors, Masatake YAMATO, 2012/10/30
- Re: alpha support for colors, joakim, 2012/10/30
- Re: alpha support for colors, aaditya sood, 2012/10/30
- Re: alpha support for colors,
Stefan Monnier <=
- Re: alpha support for colors, Eli Zaretskii, 2012/10/30
- Re: alpha support for colors, Stephen J. Turnbull, 2012/10/30
- Re: alpha support for colors, Eli Zaretskii, 2012/10/31
- Re: alpha support for colors, Eli Zaretskii, 2012/10/30