A group of BaseButton-derived buttons. The buttons in a ButtonGroup are treated like radio buttons: No more than one button can be pressed at a time. Some types of buttons (such as CheckBox) may have a special appearance in this state.
Every member of a ButtonGroup should have BaseButton.toggle_mode set to true
.
Emitted when one of the buttons of the group is pressed.
If true
, it is possible to unpress all buttons in this ButtonGroup.
Returns an Array of Buttons who have this as their ButtonGroup (see BaseButton.button_group).
Returns the current pressed button.