Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!eecae!cps3xx!usenet
From: usenet@cps3xx.UUCP (Usenet file owner)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Layers speed (was Re: 1.4 Wish: Revamped sizing gadget)
Message-ID: <5165@cps3xx.UUCP>
Date: 28 Oct 89 05:33:08 GMT
References: <8779@ardent.UUCP> <66.filbo@gorn.santa-cruz.ca.us>
Reply-To: porkka@frith.UUCP (Joe Porkka)
Organization: Michigan State University
Lines: 29

In article <66.filbo@gorn.santa-cruz.ca.us> filbo@gorn.santa-cruz.ca.us (Bela Lubkin) writes:
>In article <8779@ardent.UUCP> (comp.sys.amiga) Rob Peck writes:
>> a GIMMEZEROZERO window prevents Intuition from rendering its gadgets and
>> borders into the superbitmap.  Intuition does this by providing -->5<---

>Could this alternatively be implemented by TWO layers, one for the drawable
>area and one that covers the entire window?  This would waste a bunch of

How about making it be two layers, with the partially obscured
layer being SIMPLE_REFRESH ---> not much wasted mem.

Much better idea -> Make layers be nestable. Then you could do
something like this:

rast=screen.RastPort;

	nw.Raster=rast;
	win1=OpenWindow(&nw);

	nw2.Raster=win1->Raster;
	win2=OpenWindow(&nw2);

This would place win2 inside of win1, much like windows are
now contained in screens.
This would provide GIMMEZEROZERO type windows for free, so to speak.

I suppose the guys at CBM will think this is hard to do or something,
right ? :-)
 Joe Porkka   porkka@frith.egr.msu.edu