Add a child component to a graph.

When a scene pushes a graph containing a Component to its ViewPort, a new scene, containing the component, is created and added as a child to the scene that created it.

Any events the new component creates are sent up the parent. The parent can use functions in the Scenic.Scene module to manage its children, send them messages and such.

The standard components, such as button, slider, etc. have wrapper functions making them very easy to add to a graph. However, if you have a custom component you can add it to any graph manually using the add_to_graph/3 function.

You typically want to give components an :id. This will be used to identify events coming from that components back to your scene.

import Components  # contains the button helper

graph
|> button("Press Me", id: :press_me)
|> MyComponent.add_to_graph({"Some data", 123}, id: :my_component)