/*!
    \class QskSpinBoxSkinlet QskSpinBoxSkinlet.h

    \brief This skinlet's purpose is to draw a QskSpinBox instance

	In order to manage individual subcontrol states this skinlet uses
	subcontrol sampling. Although it is most usefull when dealing with
	dynamic or large numbers of subcontrols, it is a strategy to index
	the subcontrol in order to have individual states instead of one
	collective state on the skinnable object.

	\note The placement and dimensions of all subcontrols depend on the
	      following subctrontrol aspects:

		- QskSpinBox::Layout's alignment hint ( which affects the positions of all controls )
		- QskSpinBox::Layout's spacing hint
		- QskSpinBox::IncrementPanel's strut size hint
		- QskSpinBox::DecrementPanel's strut size hint
		- QskSpinBox::TextPanel's strut size hint
*/