On Fri, Jun 20, 2008 at 7:20 AM, _why <[EMAIL PROTECTED]> wrote:
> You were very, very close.
>
> Shoes.app :width => 800, :height => 630 do
>
> a = stack do
> fill "#FFF"
> stroke "#222"
> rect(0,0,200,200)
> stroke "#F00"
> @r = rect(10,10,180,180)
> end
>
> keypress {|key|
> @r.remove
> append {
> stroke "#222"
> nofill
> @r = rect(10,10,180,180)
> }
> }
>
> end
>
> The trick is to remove the old rectangle and replace it with a new
> one. It's not a problem with an alpha color. It's just that when
> you pile up rectangles, the stroke appears to get thicker, since it
> is antialiased.
Ah - I see! One further question on the topic - why does this not work
when I put the @r.remove within the append {} block? (Why I'd like to
do this is so that the remove-change-colour-and-repaint sequence can
be in a method of its own invoked within the block)
martin
