Hi Siemen, there is such a place, but it is not as easy as it seems. First, the widget has to accept per-pixel position of the top of the view, which is often something you want to avoid because it is fairly complex. Then you need to ensure that the scrolling can be done per pixel; whereas it is often done with a stepping in the scrollbar, because the ability to scroll by one line is essential. And last, you need to play with transformations, because the scrollbar is only giving a number between 0.0 and 1.0, not a line number nor a pixel position.
And more than last: per pixel scrolling is slow, so you need to look into having variable speed scrolling, with an ease-in, ease-out behavior to have proper feedback. Regards, Thierry 2017-01-13 11:41 GMT+01:00 Siemen Baader <siemenbaa...@gmail.com>: > There must be a place that defines that scroll should happen by a line > height, rather than continuously... Does anyone know where to look? > > -- Siemen > >
