Combining Matlab and Java callbacks

Hi there,

I am working on a more complex GUI application with several axes objects. For pan and zoom in the axes I am using java callbacks of the parent uicontainer object of the axes object (Axes has no java object). This works quite good.

Now I tried to add a uicontextmenu to my axes. I discovered that it will never show up as long as a java callback on the parent object is active. If i deactivate the java callbacks for testing, the contextmenu works as expected. I also tried to use the "ButtonDownFcn" for some plotted lines. It shows exactly the same behavior.

It seems that, somehow, the java callbacks are preventing the execution of all axes callbacks. Is it possible to workaround this behavior? Can I forward the callback somehow to the axes?

Thanks for any help

Here is a small example wich simplifies the problem

fig = figure;

panel = matlab.ui.container.internal.UIContainer('Parent', fig);
jpanel = panel.JavaFrame.getPrintableComponent;
jpanel= handle(jpanel, 'CallbackProperties');

% comment the next two lines if you want to see the context menu
set(jpanel, 'MouseDraggedCallback', @(h,e)disp('drag'));
set(jpanel, 'MouseClickedCallback', @(h,e)disp('Click'));

ax = axes('Parent', panel);

plot(ax, 1:5,1:5);
hcmenu = uicontextmenu;
uimenu(hcmenu, 'Label', 'item 1', 'Callback', @(h,e)disp('item 1'));
ax.UIContextMenu = hcmenu;

I am using Matlab 2016a

[Adithya Addanki]

Hi Marco,

I tried reproducing the same at my end. I was able to observe the same behavior as you mentioned. However, I was not able to find any workarounds so far.

I would suggest you to reach out to MathWorks Technical Support for assistance regarding this issue, as it may need further investigation and to see if there is any possible workaround for this workflow. You may email [e-mail] or call us at 508-647-7000.

Thank you, Adithya