Display meta-information from Opus file

[pisarik]

Hi!

It would be nice to be able to see meta-information from opus file in Orange.

We can add a "Metainfo" button in the File widget. Once that button pressed a new window will popup and simply show a table with list of deciphered keys and values.

I can make a pull request for it, if there is no need for deep knowledge of orange architecture.

[borondics]

I think the File widget is coming from Orange, so unless we implement this metainfo functionality for other file types too this might be a complicated one. What do you think @markotoplak?

[markotoplak]

Yes, this comes from Orange.

If we'd need some special functionality, we could (for now) make a special widget.

@pisarik, could you show an example of what you'd like to see under metainfo?

[pisarik]

Often you don't need this information. But in some cases when you interpret the results, mix several datasets, or try to find mistakes in the dataset, you might want to know some specific details about the measurement e.g. aperture size, number of scans, datetime of measurement, experiment file and so on..

I would show just all meta information from opus file, because otherwise the user will have to go for the opus program, which might be not installed on his PC and then it is pain:)