protected virtual void DrawGraph(RangeControlPaintEventArgs e, Rectangle contentBounds)
{
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
int start = Math.Max(0, (int)(e.RangeControl.VisibleRangeStartPosition * BarCount) - 2);
int end = Math.Min(Data.Length, start + ((int)(e.RangeControl.VisibleRangeWidth * BarCount) + 4));
Point?prevPoint = null;
using (Pen pen = new Pen(Color.Blue, 1)) {
for (int i = start; i < end; i++)
{
int y = contentBounds.Y + contentBounds.Height - (int)((double)(Data[i] - MinValue) / (MaxValue - MinValue) * contentBounds.Height);
int x = e.CalcX((double)i / BarCount);
if (prevPoint.HasValue)
{
e.Cache.DrawLine(new Point(prevPoint.Value.X, prevPoint.Value.Y), new Point(x, y), Color.Blue, 1);
}
prevPoint = new Point(x, y);
}
}
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.Default;
}