From: Kero van Gelder <kero@...4050.upc-d.chello.nl>
Date: 2001-10-28T19:47:03+09:00
Subject: [ruby-talk:23673] Re: Two Ruby-Tk questions

> > You can scale() the canvas.
> Thanks a lot.
> 
> Does scale only "increase" my canvas, or
> would it make my ovals bigger/smaller, too?

scale() scales the content of the canvas.

> I only want to make the canvas bigger and leave
> the ovals as they are;

oops, I misunderstood your question.

> My code fragment looks like:
> 
> parent.bind("Configure", proc{|e| p "configure"; 
>           @canvas.configure('height'=> e.height, 'width'=> e.width);  
> } )
> 
> But that does not do the trick, as configure calls configure
> again & when I start the programm the window grows
> in "size"; Really nice effect - could be avoided by a control variable,
> but I'm sure there must be an easier way;  :-(

canvas = TkCanvas.new()
canvas.pack('fill'=>'both', 'expand'=>true)

Now your canvas will "expand" in "both" directions when you enlarge
the window. No need to bind to an event for that. See also
http://httpd.chello.nl/k.vangelder/ruby/learntk/ mainly chapter 2
(Simple Widgets) and 4 (Combining widgets)

(and yes, I should find time to extend this tutorial)

Bye,
Kero.

+--- Kero ------------------------------ kero@chello.nl ---+
|  Don't split your mentality without thinking twice       |
|                          Proud like a God -- Guano Apes  |
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