RaumfeldNET.ImageBuilder.buildRandomImageCoverThread C# (CSharp) Метод

        protected void buildRandomImageCoverThread(int _imageRowCount = 3, int _width = 40, delegate_OnImageReady _delegate = null)
        {
            int imageCount = _imageRowCount * _imageRowCount;
            int subImageWidth = _width / _imageRowCount;
            int imageWidth = _width, imageHeight = _width;
            int x=1,y=1;
            List<Image> imageList = this.loadRandomImagesFromDB(imageCount+1);

            Image image = null;

            if (imageList == null)
                return;

            if (imageList.Count >= imageCount)
            {
                Bitmap outputImage = new Bitmap(imageWidth, imageHeight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
                Graphics graphics = Graphics.FromImage(outputImage);

                foreach(Image img in imageList)
                {
                    graphics.DrawImage(img, x, y, subImageWidth, subImageWidth);
                    x += subImageWidth;
                    if (x >= imageWidth)
                    {
                        x = 0;
                        y += subImageWidth;
                        if (y >= imageHeight)
                            break;
                    }
                }

                image = (Image)outputImage;

            }

            if (_delegate != null) _delegate(image);
        }