Re: [Tcllib-devel] FamFam icon sets as packages - Tklib candidate - Requesting Review

[Damon C. <da...@tc...>]

On Feb 11, 2009, at 12:18 PM, Jeff Hobbs wrote:

> On 11-Feb-09, at 10:11 AM, Joe English wrote:
>> I've also found it useful to have variants based on state; for
>> instance
>> a toolbar icon might have a grayscale variant for when it's disabled
>> and a brighter variant for when it's active.  (AIUI, Qt and Gtk+
>> manage this programmatically.  Tk can do this to a certain degree --
>> autostippling images when disabled, f'rinstance -- but the results
>> aren't ideal.)
>
> I think this is something we should rely on Tk to do, then improve Tk
> to do it right.  treectrl has an imagetint command that should be used
> by (added into) the core for such things.

I wrote a toolbar for Mac that used imagetint and the transparency  
capabilities of tkpng to make a button that did exactly what it was  
supposed to as a toolbutton.  If the -image option has a single image,  
handling disabled, pressed and active images should be automatic.  If  
they pass in a map of image states, we don't muck with it and let them  
handle it all themselves.

D