func (b *ProgressBar) PaintProgress(c gxui.Canvas, r math.Rect, frac float32) {
r.Max.X = math.Lerp(r.Min.X, r.Max.X, frac)
c.DrawRect(r, gxui.CreateBrush(gxui.Gray50))
c.Push()
c.AddClip(r)
c.DrawCanvas(b.chevrons, math.Point{X: b.scroll})
c.Pop()
}
func (s *ScrollBar) updateBarRect() {
sf, st := s.ScrollFraction()
size := s.Size()
b := size.Rect()
halfMinLen := s.minBarLength / 2
if s.orientation.Horizontal() {
b.Min.X = math.Lerp(0, size.W, sf)
b.Max.X = math.Lerp(0, size.W, st)
if b.W() < s.minBarLength {
c := (b.Min.X + b.Max.X) / 2
c = math.Clamp(c, b.Min.X+halfMinLen, b.Max.X-halfMinLen)
b.Min.X, b.Max.X = c-halfMinLen, c+halfMinLen
}
} else {
b.Min.Y = math.Lerp(0, size.H, sf)
b.Max.Y = math.Lerp(0, size.H, st)
if b.H() < s.minBarLength {
c := (b.Min.Y + b.Max.Y) / 2
c = math.Clamp(c, b.Min.Y+halfMinLen, b.Max.Y-halfMinLen)
b.Min.Y, b.Max.Y = c-halfMinLen, c+halfMinLen
}
}
s.barRect = b
}
func (b *ProgressBar) PaintProgress(c gxui.Canvas, r math.Rect, frac float32) {
r.Max.X = math.Lerp(r.Min.X, r.Max.X, frac)
c.DrawRect(r, gxui.CreateBrush(gxui.Gray50))
}