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 (p *PaintChildren) Paint(c gxui.Canvas) {
for i, v := range p.outer.Children() {
if v.Control.IsVisible() {
c.Push()
c.AddClip(v.Control.Size().Rect().Offset(v.Offset))
p.outer.PaintChild(c, v, i)
c.Pop()
}
}
}