protected override void OnPaint(PaintEventArgs e)
{
e.Graphics.Clear(BackColor);
if (TransparentBackground)
{
PaintHelper.DrawTransparentBackground(e.Graphics, ClientRectangle);
}
if (Image != null)
{
var clientSize = ClientSize;
var rectImage = new Rectangle(-HorizontalScroll.Value, -VerticalScroll.Value, ImageViewSize.Width, ImageViewSize.Height);
rectImage.X += Math.Max(0, (clientSize.Width - rectImage.Width) / 2);
rectImage.Y += Math.Max(0, (clientSize.Height - rectImage.Height) / 2);
e.Graphics.DrawImage(Image,
rectImage,
0, 0, Image.Width, Image.Height,
GraphicsUnit.Pixel);
}
}
