[josm-dev] UI development

[Gervase Markham]

Petr Nejedly wrote:
> Well, my apple mighty mouse theoretically has two button (four, actually), yet
> the right-button drag seems to be very unreliable. After I started using it,
> I find myself selecting/moving objects more often than panning :-(

Indeed. Mouse-down-select, immediate-move and pan can't all be the same 
button. That wouldn't work, for the reasons you give.

> Ctrl-left drag would probably do the trick, but still, web maps I use usually
> pan using left button and zoom-out on right click, so I make a lot of mistakes
> in both environments.....

It's very difficult to match that UI. They have the freedom of using all 
the controls they like just for moving around, because there's no 
selection and editing. If we did that, we'd have no functions left to 
assign to these common operations.

So sadly, whatever we do, matching read-only web map behaviour is 
unlikely to be workable :-(