Conference cookie::mru

321.0. "OP:LOW Can't change number of columns; sometimes." by NABETH::alan (Dr. File System's Home for Wayward Inodes.) Thu Apr 10 1997 20:37

Xuis Software Ltd - Company Confidential

Software Performance Report - SPR# XS.01041 

Entered by: Brian J. Ives                               on:      8-APR-1997

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Company   : XuiS Software Ltd
Contact   : Brian J. Ives               Telephone : 01372 728881
Product   : MediaRobotUtility           O/S type : Axp
Version   : T1.2(5)                     O/S version : V6.2
Priority  : 3Low                        SPR Type  : Suggestion
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Problem Summary: Should be able to display intermediate number of
slots/column
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PROBLEM DESCRIPTION

Simple TLZ07 DAT stacker has just 4 slots & 1 drive. The GUI option to
display a variable number of slots per column can deal with 1, 2 or 4,
but when 3 is selected on the slider - it drops back to 2. Does it have
to have a number that exactly goes into the total number of slots? I
would have expected (in this case) one row of 3 and another row of 1.

One of our students wrote something similar for media management, and
he would auto-configure based on the total number of tapes. Is this
another possible option?

	I'd love to be able to do this, but Motif won't let me!

	The slots icons are in a Motif RowColumn widget.  We
	do the initial placement of icons by "hand", but then
	turn it over to Motif.  When you use the Preferences
	option to change it, we simply change the XmNnumColumns
	resource of the RowColumn widget and let it handle the
	rest.  Usually.  I discovered early in the development
	of V1.1 that sometimes Motif wouldn't honor a particular
	value.  I don't know how it decides whether to honor
	a value or not, but I haven't a way to get some values
	to work.  It does seem to be related to the number of
	slots.

	Our initial selection of the number of columns depends
	on type of robot and the number of slots.  On the TL820
	family library we use the number of bin-packs in a face
	as the number of columns.  On other library with more
	than 7 slots we use 4 columns.  Smaller libraries use
	1.  But even on this initial placement, Motif will
	sometimes override us.  On a 10 slot library we tested
	recently it used 5 columns.

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