Method onCursor

gui/slider.go:189–222

onCursor process subscribed cursor events

(evname string, ev interface{})

// onCursor process subscribed cursor events
func (s *Slider) onCursor(evname string, ev interface{}) {

	if evname == OnCursorEnter {
		s.cursorOver = true
		if s.horiz {
			window.Get().SetCursor(window.HResizeCursor)
		} else {
			window.Get().SetCursor(window.VResizeCursor)
		}
		s.update()
	} else if evname == OnCursorLeave {
		s.cursorOver = false
		window.Get().SetCursor(window.ArrowCursor)
		s.update()
	} else if evname == OnCursor {
		if !s.pressed {
			return
		}
		cev := ev.(*window.CursorEvent)
		var pos float32
		if s.horiz {
			delta := cev.Xpos - s.posLast
			s.posLast = cev.Xpos
			newpos := s.slider.Width() + delta
			pos = newpos / s.Panel.ContentWidth()
		} else {
			delta := cev.Ypos - s.posLast
			s.posLast = cev.Ypos
			newpos := s.slider.Height() - delta
			pos = newpos / s.Panel.ContentHeight()
		}
		s.setPos(pos)
	}
}

// onScroll process subscribed scroll events
func (s *Slider) onScroll(evname string, ev interface{}) {