Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!brutus.cs.uiuc.edu!apple!oliveb!amiga!cbmvax!peter
From: peter@cbmvax.commodore.com (Peter Cherna)
Newsgroups: comp.sys.amiga.tech
Subject: Re: BUG in intuition (fix in 1.4? please?)
Keywords: BUG Intuition Requesters Windows Clipping
Message-ID: <8978@cbmvax.commodore.com>
Date: 13 Dec 89 15:46:15 GMT
References: <1989Dec12.151514.17700@uncecs.edu>
Reply-To: peter@cbmvax.commodore.com (Peter Cherna)
Organization: Commodore, West Chester, PA
Lines: 43

In article <1989Dec12.151514.17700@uncecs.edu> utoddl@uncecs.edu (Todd M. Lewis) writes:
>
>A friend of mine came across this bug in Intuition.  It seems
>that Intuition incorrectly clips requesters in windows.  To see
>the problem, try to open a requester that covers the interior
>of the window right up to the borders.  You can't.  Assuming
>normal screen colors (blue backgrounds, white borders) you'll
>get a 1-pixel blue line next to the right border and along
>the bottom border that you can't cover with a requester.

Intuition's Window borders are actually double-borders:  There is
an outside border rendered in the window's BlockPen (which normally
is pen 1, but can be whatever the opener of the window likes), and that
is the part everyone is aware of.  Just inside that is an "inner border"
rendered in pen 0.  This inner border is apparent in any window that
is not of type BORDERLESS, so indeed your requester does cover the
window upto the borders.

The discussion of borders is on p. 56 of the Intuition Reference Manual
in the Windows chapter.  Both the inner and outer borders are mentioned,
although the manual incorrectly states that the inner border is rendered
in the DetailPen of the window, while in truth it is always rendered
in pen 0.  (They're usually, but not always, the same).

>  Just thought you'd like to know.

We always like to know, even if it turns out there's no bug.

>_____        
>  |      Todd M. Lewis            Disclaimer: If you want my employer's
>  ||\/|  utoddl@ecsvax.uncecs.edu             ideas, you'll have to
>  ||  || utoddl@ecsvax.bitnet                 _buy_ them. 
>   |  ||     
>       |___   ("Prgrms wtht cmmnts r lk sntncs wtht vwls." --TML)

--
     Peter Cherna, Software Engineer, Commodore-Amiga, Inc.
     {uunet|rutgers}!cbmvax!peter    peter@cbmvax.cbm.commodore.com
My opinions do not necessarily represent the opinions of my employer.

"A friend of mine is into Voodoo Acupuncture.  You don't have to go.  You'll
just be walking down the street and ..... oooohhh, that's much better..."
     - Steven Wright