Re: [Octave-bug-tracker] [bug #59949] Various minor GUI issues

[Delorme, Arnaud]

- For popupmenu uicontrols, Matlab consider one line to calculate the extent 
while Octave considers the multiple entries

figure; h = uicontrol('style', 'popupmenu', 'string', {'a' 'b' 'c' 'd'}); 
get(h, 'extent’)

Matlab -> [0     0    10    19]
Octave -> [0    0    7   48]

- For text uicontrols, Matlab takes into account character 10 as CR while 
Octave does not

figure; h = uicontrol('style', 'text', 'string', ['a' 10 'b' 10 'c' 10 'd']); 
get(h, 'extent’)

Matlab -> [0     0    11    64]
Octave -> [0    0   33   12]

- Octave generates an error when a string is numerically empty [] while Matlab 
does not.

figure; h = uicontrol('style', 'text', 'string', []);
figure; h = uicontrol('style', ‘checkbox', 'string', []);
figure; h = uicontrol('style', ‘edit', 'string', []);
figure; h = uicontrol('style', ‘popupmenu', 'string', []);
figure; h = uicontrol('style', ‘listbox', 'string', []);

Matlab -> OK
Octave -> error