@interface PUParallaxComputer : NSObject @property (nonatomic) long long model; @property (nonatomic) double parallaxFactor; @property (nonatomic) unsigned long long axis; - (struct CGPoint { double x0; double x1; })contentParallaxOffsetForViewFrame:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0 visibleRect:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a1; @end