Re: White caret cursor, how to do it?
Re: White caret cursor, how to do it?
- Subject: Re: White caret cursor, how to do it?
- From: "I. Savant" <email@hidden>
- Date: Mon, 20 Mar 2006 11:14:13 -0500
So what I guess I'm meaning here is the "color complement",
according to John's reply. Is there an easy way of getting the
complement of a given NSColor? I don't see anything obvious in the
API docs.
--
I.S.
On Mar 20, 2006, at 10:43 AM, John C. Randolph wrote:
On Mar 20, 2006, at 6:00 AM, Camillo Lugaresi wrote:
On 20/mar/06, at 14:06, I. Savant wrote:
Excellent post, Dominik and thanks for the answer Greg.
Along these lines, I have another question. How can you easily
get the "opposite" color for the background color? In other
words, how do we get the best contrasting color for a given
background color?
That's not quite the same thing. The opposite of red is green, but
red on green is unreadable to color-blind people, and red on white
or black looks more contrasted to anyone. For text, I'd just take
the color's brightness, and use black if it's above 50%, otherwise
white. You might want to adjust the threshold depending on which
of the two colors is going to be the background.
Actually, the color complement to red is cyan, not green.
-jcr
John C. Randolph <email@hidden> (408) 914-0013
Roaming Cocoa Engineer,
Available for your projects at great Expense and Inconvenience.
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