/// <summary>
/// </summary>
/// <exception cref="ArgumentNullException"><para><paramref name="paintParams"/> is <see langword="null"/>.</para></exception>
public void DrawShadow(NuGenPaintParams paintParams)
{
if (paintParams == null)
{
throw new ArgumentNullException("paintParams");
}
Graphics g = paintParams.Graphics;
Rectangle bounds = paintParams.Bounds;
int alpha = 0;
Color baseColor = Color.Black;
int alphaStep = 5;
Padding deflatePadding = new Padding(1);
using (NuGenGrfxMode mode = new NuGenGrfxMode(g))
{
NuGenControlPaint.SetGraphicsVeryHighQuality(g);
using (Pen pen = new Pen(Color.FromArgb(alpha, baseColor)))
{
for (int i = 0; i <= _shadowStepCount; i++)
{
NuGenControlPaint.DrawRoundRectangle(g, pen, bounds, _shadowRadius);
pen.Color = Color.FromArgb(alpha += alphaStep, baseColor);
bounds = NuGenControlPaint.DeflateRectangle(bounds, deflatePadding);
if (i == 1)
{
alphaStep = 10;
}
}
}
}
}
