mouse wheel on ScrollView scroll bar does not scroll

[Be-ing]

trafficstars

Using the mouse scroll wheel on the content area of a ScrollView scrolls the view, but if the cursor is over the scroll bar, the view is not scrolled.

[tronical]

I can reproduce this (with fluent style). It seems TouchArea needs a wheel-event callback.

[tronical]

@ogoffart: Does that sound correct to you? A wheel-event in Slint that takes a WheelEvent struct as parameter, with position_x, position_y, delta_x and delta_y?

[ogoffart]

See #1280