11-22-2017

Slot Viewer: (a) Select Slots when added to Viewer; (b) Fixes to Sel Stats
Bug Number: n/a
Release notes (y/n): no, mostly new development fixes.
For Release Nums: 7.2

This commit changes in these to areas:

   (A) Indicated Slots added to Slot Viewer by selecting those Slots .
   (B) Fixes to Selection Statistics:
      (1) Slot Count and (2) Update when navigating with arrow keys.

(A) Indicated Slots added to Slot Viewer by selecting those Slots 
 (display columns).

   This was a desirable feature identified yesterday in a feature review 
   meeting.  See notes here:
     http://cadswes2.colorado.edu/~philw/2017/ObjSlotViewerRev/ObjSlotViewerRevisions-Analysis.html

   The desirable behavior had been coded, but the effect of selecting the 
   slots being added was being wiped out by subsequent selection operations.
   The desirable behavior was restored by eliminating these subsequent 
   selection operations, including some that were redundantly setting the 
   QTableView's "current cell".

   Note: If slots being added to the Slot Viewer are already shown in that 
   dialog, those slots remain in their display column, but the dialog is 
   scrolled to those slots, and those slots become selected.

   Note: This slot selection behavior does not occur the first time the 
   Slot Viewer is shown (i.e. when first showing a slot of a type which 
   does get shown in the Slot Viewer).

(B) Fixes to Selection Statistics

   (B1) Slot Count defect.  The number of slots represented in the slot/
   timestep cell selection was not being computed properly.  One consequence 
   of this was that when cells from two slots were selected, the name of the 
   FIRST slot was presented INSTEAD OF showing the NUMBER OF selected slots,
   as intended.

   (B2) Update when navigating with arrow keys.  When pressing any of the 
   arrow keys, the adjacent cell (adjacent to the single "current" cell) 
   becomes selected.  However, when doing so, the selection statistics lines 
   became blank.  This is now appropriately updated with the current cell's 
   value.  This has more meaning than it had, with the recent introduction 
   of the Time-Integrated Sum for rate unit type values (e.g. Flow or Power).

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