/**
* @param draggable is attached to the actor.
* @param actor is being dragged.
* @param overActor is directly under the dragged actor.
* @param dragPane contains the actor under dragged widget.
* @return true if actor is accepted and added to the group.
*/
protected boolean addActor(
final Draggable draggable,
final Actor actor,
final Actor overActor,
final DragPane dragPane) {
final Actor directPaneChild = getActorInDragPane(overActor, dragPane);
directPaneChild.stageToLocalCoordinates(DRAG_POSITION);
if (dragPane.isVertical() || dragPane.isVerticalFlow()) {
return addToVerticalGroup(actor, dragPane, directPaneChild);
} else if (dragPane.isHorizontal() || dragPane.isHorizontalFlow()) {
return addToHorizontalGroup(actor, dragPane, directPaneChild);
} else if (dragPane.isFloating()) {
return addToFloatingGroup(draggable, actor, dragPane);
} // This is the default behavior for grid and unknown groups:
return addToOtherGroup(actor, dragPane, directPaneChild);
}
