[Octave-bug-tracker] [bug #51921] Variable editor gets confused about variable it is operating on

[Dan Sebald]

URL:
  <http://savannah.gnu.org/bugs/?51921>

                 Summary: Variable editor gets confused about variable it is
operating on
                 Project: GNU Octave
            Submitted by: sebald
            Submitted on: Sat 02 Sep 2017 07:14:41 PM UTC
                Category: GUI
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

    _______________________________________________________

Details:

Some observations about the variable editor.

1) When double clicking on a variable in Workspace window, the associated
variable in the Variable Editor is brought to the fore, but the Variable
Editor tab itself remains where it was in the stack of tabs.  It would be nice
to also bring the Variable Editor tab to the front.

2) I think there may be something not quite correct about the way tables are
associated to variables.  I forget the Qt model, but they have two entities,
IIRC.  There is like a data component and a display/table component through
which the data is fed.  Suffice it to say that it wouldn't surprise me if
somehow there is confusion about what data component is being operated on by
the table.  Try something like the following:


>> x = 1
x =  1
>> y = eye(5)
y =

Diagonal Matrix

   1   0   0   0   0
   0   1   0   0   0
   0   0   1   0   0
   0   0   0   1   0
   0   0   0   0   1

>> 4 * 5
ans =  20
>>


Now double click on the y variable in Workspace to bring the 5x5 table to the
screen in Variable Editor.  Double click on the element of the fifth row,
first column to edit.  Change the "0" to something like "34".  Hit enter and
the associated box becomes green background, but the element value has turned
back to "0" (when it should read 34).  Now, to make the table change effective
in Octave core space, mouse click in the Variable Editor somewhere there is
not the table.  Look over in Workspace window and notice that the value of
"ans" has changed to 34.

I'm guessing that the change from 0 to 34 is causing a change in the value of
"ans" data model of the GUI...hence the green background element of y matrix
is going back to "0" right away.




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?51921>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/