ANSWER: Screentip and inheritance question...

[Lofton Henderson <lofton@rockynet.com>]

Hi Ben,

Rather than queue this as an issue, I'll give what I think is a reasonable 
answer.  If anyone doesn't like it and wants to raise an issue, please do so.

At 04:34 PM 4/21/2005 -0400, Benoit Bezaire wrote:
>[...]
>3.2.2.6 Screentip
>   - Why is a screentip not inherited?

1.)  Because inheritance of ApsAttrs is a new concept in 2.0, that didn't 
exist in 1.0, so we didn't consider the question.

But considering it now...

2.)  Does it need to be or want to be?  If the mouse is over the MOUSE 
REGION (MR) of the parent APS, then its screentip is displayed.  Doesn't 
the MR of the parent APS subsume the MRs of any children?  Well, yes and no...
2a).  If no 'region' ApsAttr, then yes.
2b).  If parent has a 'region', then not necessarily.  (Silly) 
counter-example (syntactically incorrect in some things like SDRs):

BegAps "parentId" "grobject"
ApsAttr "region" "1 0 0 1 1"
ApsAttr "screentip" "lower-left corner (object legend)"
...some stuff drawn in 0 0 1 1...
BegAps  "childId" "grobject"
...more stuff drawn in the rectangular area 0 0 10 10
EndAps
EndAps

If 'screentip' inherited, then it would be displayed for that portion of 
childId that lies outside of the MR of parentId.  I don't think that's what 
we want.

So I'd recommend to leave it alone, since it was 1.0 behavior and not 
obviously erroneous.

Regards,
-Lofton.