Re: [micro-manager-general] Steps to get a functional plugin, lesson n+1

[Nico S. <nic...@uc...>]

Hi Carlos,

On 4/7/2020 3:00 PM, Carlos G Mendioroz wrote:
> Here, I was hoping to be informed using DataProviderHasNewImageEvent.
> But my first try did not work.
>
> I'm doing:
>
>        // Run an acquisition using the current MDA parameters.
>        acquireButton_ = new JButton("Run Acquisition");
>        acquireButton_.addActionListener(new ActionListener() {
>           @Override
>           public void actionPerformed(ActionEvent e) {
>              // All GUI event handlers are invoked on the EDT (Event Dispatch
>              // Thread). Acquisitions are not allowed to be started from the
>              // EDT. Therefore we must make a new thread to run this.
>              Thread acqThread = new Thread(new Runnable() {
>                 @Override
>                 public void run() {
>                    ds_ = studio_.acquisitions().runAcquisition();
>                    ds_.registerForEvents(me);
>                 }
>              });
>              acqThread.start();
>           }
>        });
>
> where "me" is a reference to the Frame instance, and there:
>
>     @Subscribe
>     public void onNewImage(DataProviderHasNewImageEvent event) {
> 	   imagesReceived_++;
> 	   title.setText("We have an image to work with!");
>     }
>
> I'm not getting along this bus thing.
> Help ?


Change:

ds_ = studio_.acquisitions().runAcquisition();

to:

ds_ = studio_.acquisitions().runAcquisitionNonBlocking();

Your current code registers the datastore to the Eventbus only after the 
acquisition finished, hence your code never received a 
DataProvierHasNewImageEvent.

Thanks for exercising the API!


Best,

Nico