gistfile1.m

- (void)drawRect:(CGRect)rect;
{
    CGContextRef ctx = UIGraphicsGetCurrentContext();
    CGContextSetBlendMode(ctx, kCGBlendModeCopy);
    CGContextDrawImage(ctx, (CGRect){CGPointZero, self.topImage.size}, [self.topImage CGImage]);
    
    CGContextSaveGState(ctx);
        CGContextClipToRect(ctx, CGRectMake(0, self.topImage.size.height, self.bounds.size.width, self.bounds.size.height - self.topImage.size.height - self.bottomImage.size.height));
        CGContextDrawTiledImage(ctx, (CGRect){CGPointZero, self.middleImage.size}, [self.middleImage CGImage]);
    CGContextRestoreGState(ctx);
//    
//    CGContextDrawImage(ctx, (CGRect){CGPointMake(0, self.bounds.size.height - self.bottomImage.size.height), self.bottomImage.size}, [self.bottomImage CGImage]);
    
}