@Override
public void add(int index, Layer layer) {
Asserts.checkArgument(layer instanceof HtmlLayerGL);
impl.add(this, index, (HtmlLayerGL) layer);
}
@Override
public void remove(Layer layer) {
Asserts.checkArgument(layer instanceof HtmlLayerGL);
impl.remove(this, (HtmlLayerGL) layer);
}
@Override
public float width() {
Asserts.checkNotNull(surface, "Surface must not be null");
return surface.width();
}