bugGNU Octave - Bugs: bug #44687, Properties of a popupmenu uicontrol

 
 

bug #44687: Properties of a popupmenu uicontrol

Submitter:  Guillaume <gyom>
Submitted:  Wed 01 Apr 2015 02:29:08 PM UTC
   
 
Category:  Plotting Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Fixed Assigned to:  lostbard
Originator Name:  Guillaume Open/Closed:  * Closed
Release:  * dev Operating System:  * Any
Fixed Release:  None Planned Release:  None
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Fri 03 Apr 2015 07:20:02 PM UTC, comment #10: 

Closing report

John Donoghue <lostbard>
Group Member
Thu 02 Apr 2015 08:52:51 PM UTC, comment #9: 
John Donoghue <lostbard>
Group Member
Thu 02 Apr 2015 07:20:56 PM UTC, comment #8: 

Thanks again!

Last thing I notice is that MATLAB returns a warning/error as soon as 'Value' is above numel(String):


F=figure;
H=uicontrol(F,'style','popupmenu','String',{'A','B','C'});
set(H,'Value',3.1)


while Octave only complains from numel(String)+1.

Guillaume <gyom>
Thu 02 Apr 2015 06:51:01 PM UTC, comment #7: 

Happens whenever setting the value it already is.

Fixed: http://hg.savannah.gnu.org/hgweb/octave/rev/e70df1ff58b7

John Donoghue <lostbard>
Group Member
Thu 02 Apr 2015 06:30:10 PM UTC, comment #6: 

Thanks. A wanning now also appears with a 'Value' of 1, while it should not happen.


F=figure;
uicontrol(F,'style','popupmenu','String',{'A','B','C'},'Value',1)


Guillaume <gyom>
Thu 02 Apr 2015 05:10:45 PM UTC, comment #5: 

Pushed http://hg.savannah.gnu.org/hgweb/octave/rev/519eb032ac35

which warns about invalid value set.

John Donoghue <lostbard>
Group Member
Thu 02 Apr 2015 04:32:42 PM UTC, comment #4: 

Same issue with checkbox set(H, 'Value', 10) provides  warning in matlab.

John Donoghue <lostbard>
Group Member
Thu 02 Apr 2015 11:22:02 AM UTC, comment #3: 

Works great, many thanks! You can close the report now.

Testing your change, I noticed that MATLAB displays a warning if one attempts to set 'Value' out of bound, while Octave silently ignores it.


set(H,'Value',4)
Warning: 'popupmenu' control requires that 'Value' be an integer within String range
Control will not be rendered until all of its parameter values are valid


Guillaume <gyom>
Wed 01 Apr 2015 07:18:15 PM UTC, comment #2: 
John Donoghue <lostbard>
Group Member
Wed 01 Apr 2015 07:10:50 PM UTC, comment #1: 

Confirmed in both Linux and Windows

John Donoghue <lostbard>
Group Member
Wed 01 Apr 2015 02:29:08 PM UTC, original submission:  

Run the following:


F = figure;
H = uicontrol(F,'Style','popupmenu','String',...
      {'A','B','C'},'Value',2,'Callback','disp(''cb'');');
get(H,'Value')


It should display 'B' (as 'Value' is 2) but instead displays 'A'.

Furthermore, if you now manually switch it to 'C' (which will display 'cb') and type this:


set(H,'Value',1)


it will execute the callback as well (and display 'cb') while MATLAB does not execute a callback when using 'set' programmatically.

Guillaume <gyom>

 

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    Follow 6 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2015-04-03 lostbard StatusReady For Test Fixed
        Open/ClosedOpen Closed
    2015-04-01 lostbard StatusNone Ready For Test
    2015-04-01 lostbard Item GroupNone Incorrect Result
        Assigned toNone lostbard
        Operating SystemGNU/Linux Any

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