[Caml-list] LABLTK?

[Caml-list] LABLTK?

[deerf hal]

hello,

i use a canvas, in a toplevel, but i decide to rezise the canvas when i 
rezise the main window (toplevel).
i found a solution with xview and yview function to know the size of the 
toplevel, and i use the canvas as a global variable, wich i destroy and then 
i give to the global variable a new canvas with a good size.
it 's work , but i use event in my canvas, and when i destroy it, it seems  
to made canvas.bind disable, even i made copy of my global canvas variable.
i must to make canvas.bind another time:
it 's work but, could i use a differrent way to keep the original bind (on 
my global variable !canvas).

thank





_________________________________________________________________
Pro ou perso, toutes les adresses et numéros de tél que vous cherchez 
http://g.msn.fr/FR1000/9491

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Re: [Caml-list] LABLTK?

[Jacques Garrigue]

From: "deerf hal" <halnaf@hotmail.com>

> i use a canvas, in a toplevel, but i decide to rezise the canvas when i 
> rezise the main window (toplevel).
> i found a solution with xview and yview function to know the size of the 
> toplevel, and i use the canvas as a global variable, wich i destroy and then 
> i give to the global variable a new canvas with a good size.

You don't have to destroy the canvas: you can use
[Canvas.configure canvas ~width ~height] to resize it dynamically.

Jacques Garrigue

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Re: [Caml-list] LABLTK?

[Matt Gushee]

On Thu, Apr 10, 2003 at 12:07:39AM +0000, deerf hal wrote:
> 
> i use a canvas, in a toplevel, but i decide to rezise the canvas when i 
> rezise the main window (toplevel).
> i found a solution with xview and yview function to know the size of the 
> toplevel, and i use the canvas as a global variable, wich i destroy and 
> then i give to the global variable a new canvas with a good size.

The usual way to make a child widget change size along with its parent
is to use the 'expand' and 'fill' arguments to 'pack', e.g.:

  pack [c] ~expand:`Yes ~fill:`Both;

It's a bit more complex with Grid, but you can still do it; I suppose
there's a way to do it with Place, too, but I never use Place, so I
can't tell you how.

Or is there some reason that won't work for you?

-- 
Matt Gushee                 When a nation follows the Way,
Englewood, Colorado, USA    Horses bear manure through
mgushee@havenrock.com           its fields;
http://www.havenrock.com/   When a nation ignores the Way,
                            Horses bear soldiers through
                                its streets.
                                
                            --Lao Tzu (Peter Merel, trans.)

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Re: [Caml-list] LABLTK?

[Matt Gushee]

On Thu, Apr 10, 2003 at 12:07:39AM +0000, deerf hal wrote:
> 
> i use a canvas, in a toplevel, but i decide to rezise the canvas when i 
> rezise the main window (toplevel).
> i found a solution with xview and yview function to know the size of the 
> toplevel, and i use the canvas as a global variable, wich i destroy and 
> then i give to the global variable a new canvas with a good size.

The usual way to make a child widget change size along with its parent
is to use the 'expand' and 'fill' arguments to 'pack', e.g.:

  pack [c] ~expand:`Yes ~fill:`Both;

It's a bit more complex with Grid, but you can still do it; I suppose
there's a way to do it with Place, too, but I never use Place, so I
can't tell you how.

Or is there some reason that won't work for you?

-- 
Matt Gushee                 When a nation follows the Way,
Englewood, Colorado, USA    Horses bear manure through
mgushee@havenrock.com           its fields;
http://www.havenrock.com/   When a nation ignores the Way,
                            Horses bear soldiers through
                                its streets.
                                
                            --Lao Tzu (Peter Merel, trans.)

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