multi finger pan

[sebakerckhof]

Currently the library either pans if there's a single-finger touch, or zooms when there's a 2 finger touch.

Looking at how most native pan/zoom applications (e.g. google maps) work, then you can see that usually these actions are not mutually exclusive. E.g. you can pan while zooming, where you'd pan the average vector of both fingers. This not only feels more natural, but together with #40 it would also open new use cases of for example having drag drop inside a panzoom region (drag drop handled by single-finger touches and panzoom by two-finger touches).

I could make a PR for this if you'd agree with this.

[CharlieSavve]

Has 2 finger pan been implemented yet? that would be such an awesome thing to have, since one finger pan really intervenes with normal scrolling!

[sebakerckhof]

@CharlieSavve look at the list of PRs. I added one whoch implements two finger pan

[CharlieSavve]

@CharlieSavve look at the list of PRs. I added one whoch implements two finger pan

Saw it, thank you for your great work! But it hasn't been merged yet right?