Unlike the buttons or checkboxes and stuff, there seems not to be a way to check if a label was clicked on…
How to do that with the tonegodGUI?
Ugh… sorry for not seeing this. Extend the Label class and implement the listener you would like. A secondary option is to pass in null for the image of an AbstractButton, clear the alt images (or remove the hover/pressed effects) and you have a label with the following interaction:
left button down
left button up
right button down
right button up
mouse wheel down
mouse wheel up
left button still down