Created attachment 174171 [details] [review]
Patch to solve on equals

This is by design, otherwise you cannot enter a calculation like:
x = 6 + 1

For = to work as an alternate solve key to enter it would have to be clever and only work if the preceeding text is not a variable.  I'm not convinced this would be a good idea though (the behaviour of = might feel inconsistent).

Review of attachment 174171 [details] [review]:

This patch breaks entering variables, e.g. "x = 6 + 1"

Yes, you are right, it wouldn't be consistent if in some cases = would solve and in others it wouldn't. I didn't know about GCalcTool being able to handle variables, but now I know. Then I assume this bug is a WON'T FIX one, isn't it?

Closing WONTFIX, thanks for the patch work though!

A possibility would be to only allow algol/pascal style assignment, so you'd have to write x := 6 + 1 instead. We'd still need some cleverness (but not too much), but it would be less inconsistent, both compared to giving the = key two meanings (as with this patch), and compared to the current state where the "=" button and the "=" key have different meanings.

If we did, I bet we'd get at least one bug report about someone preferring only using the equal sign to make assignments, though.