[Octave-bug-tracker] [bug #54918] uicontrol: validation of cdata property

[Guillaume]

URL:
  <https://savannah.gnu.org/bugs/?54918>

                 Summary: uicontrol: validation of cdata property
                 Project: GNU Octave
            Submitted by: gyom
            Submitted on: Tue 30 Oct 2018 03:10:57 PM UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: Guillaume
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

It seems that the validation of an uicontrol cdata property is a bit too tight
as it doesn't allow an empty array []:


>> figure, h = uicontrol ();
>> get (h, "cdata")
ans = [](0x0)
>> set (h, "cdata", [])
error: invalid value for array property "cdata"
>> set (h, "cdata", zeros(0,0,0))
>>


i.e. it does not allow its own default value.

I assume the fix is about changing this line:
http://hg.savannah.gnu.org/hgweb/octave/file/69a160d7ab68/libinterp/corefcn/graphics.in.h#l5476
but am not sure exactly how.




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