snapshot_child

Description:

public void snapshot_child (Widget child, Snapshot snapshot)

When a widget receives a call to the snapshot function, it must send synthetic snapshot calls to all children.

This function provides a convenient way of doing this. A widget, when it receives a call to its snapshot function, calls snapshot_child once for each child, passing in the snapshot the widget received.

snapshot_child takes care of translating the origin of snapshot, and deciding whether the child needs to be snapshot.

This function does nothing for children that implement Native.

Parameters:

this	a Widget
child	a child of this
snapshot	Snapshot as passed to the widget. In particular, no calls to translate or other transform calls should have been made.