I am not a designer, just regular programmer so my terminology might not be correct.
What I am trying to solve is that I have a quite narrow area where I should have n amount of input fields and an operator next to it.
My problem is that because of the limited space horizontally I need to have very compact control for operator, but it should be obvious that you can change it. As you can see the default select list has a huge arrow on the right-side of the select box and it is consuming space us much as the information itself (the operator).
What kind of control would be ideal for this kind three state selection?