SFViewer - Show individual Spectrum

[tknopp]

In the system matrix viewer it would be nice to click on a position and show the spectrum at that position. This might be slow, because the SM is not fully loaded but it should be doable.

Remarks / Implementation strategy:

• One will likely also want to see the time data and then one can just reuse a "RawDataViewer", which could be opened in a new window. This would allow the user even to open several spectra and compare them on the screen.
• Loading data is done by getMeasurement.
• The clicked position is somewhere in the DataViewer. If one wants the spectrum to be opened on double click, one needs a callback in the DataViewer. So the SFViewer would create a function that is called and this function needs to be registered within the DataViewer. The reason is that the DataViewer should not know anything about the SFViewer.