right click "Add to Playlist"+"Add to Crate" items for tracks should have "new" as option

[RAWRR]

I know that you could just create a new playlist or crate beforehand and then add selected tracks to it. However, it would be smoother and faster for it to also be connected to right click options for selected tracks, especially since other playlist and crate functions are present there too.

[vedant agarwala (vedu)]

Attached patch fixes the bug. It Builds and runs as expected.

However, there was a lot of code duplication between the 2 (playlist and crate). Also, I mainly copied code from the BasePlaylistFeature and CrateFeature. I tried to avoid more code duplication by inheritance or using "friend" but the problem was that I would be creating a new object. There was no way of accessing the existing the objects of the said classes. Any ideas on this?
Or it will be a major task?
OR, is it best the way it is. Because using templates, inheritance, free form functions, or friend functions/classes will increase coupling? I agree that due to the decoupled nature of mixxx I only had to change one class to add both the features.

[RAWRR (rawrr)]

Well, it works at least. Awesome job getting the patch in! Sorry to take this long to congratulate you *9_9*

Thanks so much fixing my bug!!

[Daniel Schürmann (daschuer)]

@Vedant, are you still working on this patch? Or is it ready for review?
Can you remove the QtCreator project files? Does it merge cleanly?

@RAWRR, do you have a public GitHub branch which includes this patch. If yes, it would be helpful to issue a merge request against current mixxxdj/master branch. Thank you.

[RAWRR (rawrr)]

Ixnay on that, I checked in haste and under lack of sleep. I mistook the normal tree view right click feature for it 9_9

Sorry.

[jus (jus)]

Merged, see https://github.com/mixxxdj/mixxx/pull/93

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/7025