Re: raise / lower API

[Bruno Coudoin <bruno coudoin free fr>]

Le mercredi 17 décembre 2008 à 17:31 -0500, Donny Viszneki a écrit :
> On Wed, Dec 17, 2008 at 4:59 PM, Bruno Coudoin <bruno coudoin free fr> wrote:
> > I know and I already use this feature. It is used to raise to top or
> > lower to bottom an item. This was also present in the gnomecanvas. But
> > we still miss a raise/lower by one z increment.
> 
> There may in fact be no real Z value, except for one which you might
> notionally derive from comparing the relative Z positions of each
> item.

Sure, I suppose there is no real Z value but a painting order.

> A better approach, and the one you should use, is to create a canvas
> item which represent each notional layer of your organization, and use
> that as a reference point for setting the Z order you want.

Ouch, seems overly complex or I don't understand. What do you mean by
"create a canvas item" ?

What I would expect is to let the user change the painting order. It
means moving up / down the given item in the list of items to draw.

-- 
Bruno Coudoin
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