From: Joe Van Dyk <joevandyk@...>
Date: 2005-06-23T01:38:50+09:00
Subject: Re: tk canvas question

On 6/21/05, Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp> wrote:
> From: Joe Van Dyk <joevandyk@gmail.com>
> Subject: Re: tk canvas question
> Date: Wed, 22 Jun 2005 06:15:41 +0900
> Message-ID: <c715e64050621141518afc887@mail.gmail.com>
> > I found this code out there somewhere:
>     (snip)
> > grp.add(TkcRectangle.new(canvas, '1c', '2c', '3c', '3c',
> >                                'outline' => 'black', 'fill' => 'blue'))
> 
> Please use TkcGroup#include.
> For example,
> -----------------------------------------------
> require "tk"
> 
> canvas = TkCanvas.new
> grp = TkcGroup.new(canvas)
> grp.include(TkcRectangle.new(canvas, '1c', '2c', '3c', '3c',
>                              'outline' => 'black', 'fill' => 'blue'),
>             TkcRectangle.new(canvas, '3c', '4c', '5c', '5c',
>                              'outline' => 'black', 'fill' => 'blue'))
> canvas.pack
> 
> grp.bind 'Enter' do
>   grp.configure 'fill', 'red'
> end
> grp.bind 'Leave' do
>   grp.configure 'fill', 'green'
> end
> Tk.mainloop
> -----------------------------------------------
> 
> TkcGroup has some bugs.
> I'll fix it later. And then, I'll revive TkcGroup#add.

How can I hide and/or destroy all TkCanvas items that are in a group?