From: "Stephen J. Turnbull" <stephen@xemacs.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: aaditya sood <aaditya@sood.net.in>, emacs-devel@gnu.org
Subject: Re: alpha support for colors
Date: Wed, 31 Oct 2012 11:06:11 +0900 [thread overview]
Message-ID: <87lienjsz0.fsf@uwakimon.sk.tsukuba.ac.jp> (raw)
In-Reply-To: <83objj7t21.fsf@gnu.org>
Eli Zaretskii writes:
> What do you mean by "composition of all the faces"? Why "all"?
I suspect aaditya is thinking in terms of bitmap composition
operations on graphics layers, not Emacs faces.
So he'd like to put an overlay on some text, give that overlay a 'face
property of '(+ red), and turn all the blue text in the overlay to
violet (the RGB sum of #F00 and #00F == #F0F).
next prev parent reply other threads:[~2012-10-31 2:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-29 20:19 alpha support for colors aaditya sood
2012-10-30 1:52 ` Chong Yidong
2012-10-30 5:02 ` aaditya sood
2012-10-30 5:07 ` Masatake YAMATO
2012-10-30 6:51 ` joakim
2012-10-30 7:37 ` aaditya sood
2012-10-30 13:28 ` Stefan Monnier
2012-10-30 17:45 ` Eli Zaretskii
2012-10-31 2:06 ` Stephen J. Turnbull [this message]
2012-10-31 4:00 ` Eli Zaretskii
2012-10-30 17:43 ` Eli Zaretskii
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