Re: Dynamic color changes in a text view

FROM : Greg Titus
DATE : Tue Dec 31 21:52:40 2002

On Tuesday, December 31, 2002, at 11:17  AM, Daryn wrote:

> In a nutshell, I'm displaying ansi color output from another app in a
> text view.  Since the scrollback is arbitrarily large (user pref) and
> thus the ranges may be excessive, I planned to dynamically update the
> visible rect, and defer changing all text until the color ui is
> dismissed.
>
> Greg Titus had a interesting suggestion for subversively faking a
> mutable color, although I'm worried something else wouldn't work as
> expected since the color thinks it's one thing, but is really another.
>  I occasionally derive colors, although I can adapt that the use the
> real colors.  I'll have to see if it interferes with selection colors
> or text copying.

If you take this approach you will notice that if you copy and paste
rich text that your colors will all turn out black in another
application, unless you do some additional work. Everything else will
work fine.

(Ever tried copying and pasting a link from OmniWeb into TextEdit, for
instance? Colored text transfers correctly, but links all turn black.
That's because we use instances of the OHAnchorColor class (which you
could examine in OmniHTML) in the text storage in order to make the
normal/active/visited link colors happen dynamically.

   - Greg
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