How to distinguish two-fingers drag and pinch?

[KKzLEO]

Hi, thanks for creating this package, it's really awesome. I am wondering if you guys can tell me how to distinguish if the gesture is two-fingers drag or it's a pinch gesture. for example, I want a canvas can be zoomed by pinch but I also want to move the canvas just by two-fingers drag (single drag gesture has been used in other feature like drawing)