iPhone dev Stupidity 42: use category for convenient methods

These are nice for UIView and they can be declared as properties:

@property (readonly, nonatomic) int width;

@property (readonly, nonatomic) int height;

@property (readonly, nonatomic) int x;

@property (readonly, nonatomic) int y;

@property (readonly, nonatomic) int centerX;

@property (readonly, nonatomic) int centerY;

@property (readonly, nonatomic) int right;

@property (readonly, nonatomic) int bottom;

- (int) width{

return (int) self.frame.size.width;

}

- (int) height{

return (int) self.frame.size.height;

}

- (int) x{

return (int) self.frame.origin.x;

}

- (int) y{

return (int) self.frame.origin.y;

}

- (int) centerX{

return self.center.x;

}

- (int) centerY{

return self.center.y;

}

- (int) right{

return CGRectGetMaxX(self.frame);

}

- (int) bottom{

return CGRectGetMaxY(self.frame);

}