func (sl *slider) hover(x, y float64, w, h int) {
if sl.sliding {
ox, _, ok := ui.Intersects(sl.back, x, y, w, h)
if ok {
ww, _ := sl.back.Size()
v := math.Min(ww-10, math.Max(10, ox)) - 10
sl.Value = v / (ww - 20)
sl.update()
}
}
}
func (sl *slider) click(down bool, x, y float64, w, h int) {
if !down {
if sl.sliding {
sl.sliding = false
}
return
}
_, _, ok := ui.Intersects(sl.slider, x, y, w, h)
if ok {
sl.sliding = true
} else {
ox, _, ok := ui.Intersects(sl.back, x, y, w, h)
if ok {
ww, _ := sl.back.Size()
v := math.Min(ww-10, math.Max(10, ox)) - 10
sl.Value = v / (ww - 20)
sl.update()
}
}
}