/// <summary>
/// Get interior BrushInfo points.
/// </summary>
/// <param name="curValue">The current value of the cell.</param>
/// <param name="sparkline">The sparkline</param>
/// <param name="isNegative">The value indicating whether the source value is negative or not.</param>
/// <returns>returns the BrushInfo interior</returns>
private BrushInfo GetInteriorColumn(double curValue, Syncfusion.Windows.Forms.Chart.SparkLine sparkline, bool isNegative)
{
BrushInfo interior = sparkline.ColumnStyle.ColumnColor;
if (Convert.ToDouble(curValue) == sparkline.StartPoint && sparkline.Markers.ShowStartPoint)
{
interior = sparkline.Markers.StartPointColor;
}
if (Convert.ToDouble(curValue) == sparkline.EndPoint && sparkline.Markers.ShowEndPoint)
{
interior = sparkline.Markers.EndPointColor;
}
int count = sparkline.GetNegativePoint().GetUpperBound(0);
if (isNegative)
{
for (int index = 0; index <= count; index++)
{
if (Convert.ToDouble(curValue) == (double)sparkline.GetNegativePoint().GetValue(index) && sparkline.Markers.ShowNegativePoint)
{
interior = sparkline.Markers.NegativePointColor;
}
}
}
if (Convert.ToDouble(curValue) == sparkline.HighPoint && sparkline.Markers.ShowHighPoint)
{
interior = sparkline.Markers.HighPointColor;
}
if (Convert.ToDouble(curValue) == sparkline.LowPoint && sparkline.Markers.ShowLowPoint)
{
interior = sparkline.Markers.LowPointColor;
}
return(interior);
}
///<summary>
///Renders the line type Sparkline.
///</summary>
///<param name="graphics">The <see cref="System.Windows.Forms.PaintEventArgs"/> instance containing the event data.</param>
///<param name="sparkline">The Sparkline.</param>
public void DrawSparkline(Graphics graphics, Syncfusion.Windows.Forms.Chart.SparkLine sparkline)
{
SparkLineSource sparkLineSource = new SparkLineSource();
int areaMarginX = 3;
int areaMarginY = 3;
double firstPointX = 0, firstPointY = 0, secondPointX = 0, secondPointY = 0;
double areaWidth = sparkline.ControlWidth - areaMarginX * areaMarginX;
double areaHeight = sparkline.ControlHeight - areaMarginY * areaMarginY;
var sourceList = (List <object>)sparkLineSource.GetSourceList(sparkline.Source, sparkline);
if (sourceList.Count == 0)
{
return;
}
double lineInterval = areaWidth / (sourceList.Count);
double lineRange = sparkline.HighPoint - sparkline.LowPoint;
for (int i = 0; i < sourceList.Count; i++)
{
double Value = Convert.ToDouble(sourceList[i]) - sparkline.LowPoint;
secondPointX = firstPointX;
secondPointY = firstPointY;
firstPointX = this.Sparkline.Location.X + (lineInterval * i + (lineInterval / 2));
firstPointY = this.Sparkline.Location.Y + (areaHeight - (areaHeight * (Value / lineRange)));
if (i > 0)
{
graphics.DrawLine(new Pen(sparkline.LineStyle.LineColor, 1), (float)(areaMarginX + firstPointX), (float)(areaMarginY + firstPointY), (float)(areaMarginX + secondPointX), (float)(areaMarginY + secondPointY));
}
if (sparkline.Markers.ShowMarker)
{
graphics.FillEllipse(new SolidBrush(sparkline.Markers.MarkerColor.BackColor), (float)(areaMarginX + firstPointX - 2), (float)(areaMarginY + firstPointY - 2), 5, 5);
}
if (Convert.ToDouble(sourceList[i]) == sparkline.StartPoint && sparkline.Markers.ShowStartPoint)
{
graphics.FillEllipse(new SolidBrush(sparkline.Markers.StartPointColor.BackColor), (float)(areaMarginX + firstPointX - 2), (float)(areaMarginY + firstPointY - 2), 5, 5);
}
if (Convert.ToDouble(sourceList[i]) == sparkline.EndPoint && sparkline.Markers.ShowEndPoint)
{
graphics.FillEllipse(new SolidBrush(sparkline.Markers.EndPointColor.BackColor), (float)(areaMarginX + firstPointX - 2), (float)(areaMarginY + firstPointY - 2), 5, 5);
}
if (sparkline.GetNegativePoint() != null)
{
int count = sparkline.GetNegativePoint().GetUpperBound(0);
for (int k = 0; k <= count; k++)
{
if (Convert.ToDouble(sourceList[i]) == (double)sparkline.GetNegativePoint().GetValue(k) && sparkline.Markers.ShowNegativePoint)
{
graphics.FillEllipse(new SolidBrush(sparkline.Markers.NegativePointColor.BackColor), (float)(areaMarginX + firstPointX - 2), (float)(areaMarginY + firstPointY - 2), 5, 5);
}
}
}
if (Convert.ToDouble(sourceList[i]) == sparkline.HighPoint && sparkline.Markers.ShowHighPoint)
{
graphics.FillEllipse(new SolidBrush(sparkline.Markers.HighPointColor.BackColor), (float)(areaMarginX + firstPointX - 2), (float)(areaMarginY + firstPointY - 2), 5, 5);
}
if (Convert.ToDouble(sourceList[i]) == sparkline.LowPoint && sparkline.Markers.ShowLowPoint)
{
graphics.FillEllipse(new SolidBrush(sparkline.Markers.LowPointColor.BackColor), (float)(areaMarginX + firstPointX - 2), (float)(areaMarginY + firstPointY - 2), 5, 5);
}
}
}