Joe English wrote:
>  Kevin Walzer wrote:
> > Joe English wrote:
> >> Note that [ttk::button] widgets provide an easier way to
> >> achieve this effect:
> >> [...]
> > The issue here is that, under Aqua, Tk buttons (whether standard or
> > Tile's toolbutton style) darken completely when they are pressed. Modern
> > toolbutton behavior on the Mac (if accessed via the HIToolbar API)
> > doesn't work this way: the image and/or text darkens, but the rest of
> > the button retains transparency. Tk buttons with images are mapped to
> > the bevel button widget under Aqua, which is an older widget style not
> > much used anymore.
>  
>  Tile's built-in aqua Toolbutton style also uses bevel buttons.
>  But that's easy to fix, see below...
>  
>  (The aqua theme, unfortunately, still looks circa OSX 10.2.
>  I haven't done a very good job keeping up with Apple, sorry :-(.
>  
>  
> > Using your suggestion works to alter the image
> > depending on the button's state, but the entire button still gets dark
> > when pressed--which is what I'm trying to avoid.
> >
> > I'm pretty sure changing this behavior at the C level would be a lot of
> > work, and I don't have the first clue how to do it.
>  
>  In this particular case you don't need to do anything in C --
>  you can replace the default Toolbutton layout with:
>  
>  	style theme settings aqua {
>  	    style layout Toolbar.TButton {
>  	    	Toolbar.TButton.padding -children {
>  		    Toolbar.TButton.label
>  		}
>  	    }
>  	    style configure Toolbar.TButton -padding {whatever's appropriate}
>  	    # Possibly: use [style map ... ] to change foreground settings.
>  	}
>  
>  (Using "Toolbar.TButton" style instead of "Toolbutton",
>  so as not to interfere with Toolbutton-style check- and
>  radiobuttons.)
>  
>  Some of the other OSX-specific stuff -- round buttons,
>  small and tiny sizes for various controls, etc., --
>  do require new C code for support [*], but 10.4-style
>  toolbar buttons are simple enough -- there's almost nothing
>  to them, just a label -- that you can build one in Tcl.
>  
>  [*] Which I will get around to implementing someday ...
>  
>  
>  --Joe English
>  
>    jenglish@[...].com
>  

Thanks for the tip on styles, I will give this a try.

--Kevin



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