question: static void paintFromSingleCachedImage ( final Graphics2D g , final JRSUIControl control , final JRSUIState controlState , final Rectangle bounds ) { if ( bounds . width <= 0 || bounds . height <= 0 ) { return ; } int focus = 0 ; if ( controlState . is ( JRSUIConstants . Focused . YES ) ) { focus = JRSUIConstants . FOCUS_SIZE ; } final int imgX = bounds . x - focus ; final int imgY = bounds . y - focus ; final int imgW = bounds . width + ( focus << 1 ) ; final int imgH = bounds . height + ( focus << 1 ) ; final GraphicsConfiguration config = g . getDeviceConfiguration ( ) ; final ImageCache cache = ImageCache . getInstance ( ) ; final AquaPixelsKey key = new AquaPixelsKey ( config , imgW , imgH , bounds , controlState ) ; Image img = cache . getImage ( key ) ; if ( img == null ) { img = new MultiResolutionCachedImage ( imgW , imgH , null ) ; if ( ! controlState . is ( JRSUIConstants . Animating . YES ) ) { cache . setImage ( key , img ) ; } } g . drawImage ( img , imgX , imgY , imgW , imgH , null ) ; }
target:  Paints a native control, which identified by its size and a set of additional arguments using a cached image.