how to define a widget which have custum defined event?

[wahaha]

i do not know how to define a widget wich have its own event type and
listener type.

[Ashton Thomas]

1) create a widget

2) create event

3) create event handler

4) have your widget implement the handler

5) register the widget as a handler of the new event with eventBus (probably at the very start of your application)

Hope that helps