Feature Request: Swap language

[ghost]

Thank you for this great quality FOSS app.

Well, I think it will be useful if there is a button to swap language, to quickly switch between two interchangable languages to perform double-check translation, for instance, English->Esperanto to Esperanto->English.

[artetxem]

Thanks for your suggestion. I also think that this feature could be quite useful, but there are two main reasons why I haven't implemented it so far:

• It is not possible to translate in both directions for all the language pairs. If we add a button to swap languages, this could be quite confusing for the user.
• In Mitzuli, we have a single dropdown menu for the language pair instead of having one for the source language and another one for the target language. I think that the swap languages button fits very well in this second type of user interfaces, but not so well in the one that Mitzuli has.

In any case, this is an idea that I already had in mind, so I might end up implementing it.

[moshpirit]

I think that's a good solution:

1. Only show the button for those exchangeable languages
2. Why not including an option in the settings saying what languages to show? Or even sorting them manually. That way we could put together those that we use the most. It's actually a bit annoying having all of those entries that we're not using at all :(

That said, thanks a lot for the support!