offset method
void
offset({
- required Offset offset,
- required VoidCallback paint,
- Rect? bounds,
- LayerKey<
Layer> ? key,
Pushes an OffsetLayer to the compositing tree, calling paint
to paint
on top of the layer.
The bounds
argument defines the bounds in which the paint
should
paint, this is useful for debugging tools and does not affect rendering.
See also:
Implementation
void offset({
required Offset offset,
required VoidCallback paint,
Rect? bounds,
LayerKey? key,
}) {
OffsetLayer layer;
if (key?.layer is OffsetLayer) {
layer = (key!.layer! as OffsetLayer)..offset = offset;
} else {
layer = OffsetLayer(offset: offset);
key?.layer = layer;
}
push(layer: layer, paint: paint, bounds: bounds);
}