public void AddLegend(Canvas canvas, DataCollection<DataSeries> dc)
{
if (dc.DataList.Count == 0 || !IsLegend)
{
return;
}
const double textHeight = 17;
const double lineLength = 34;
double legendWidth = dc.CalculateLegendWidth();
double legendHeight = dc.CalculateLegendHeight(textHeight);
Rectangle legendRect = Canvas.GenerateLegendRect(legendWidth+lineLength+20, legendHeight+5);
if (IsLegend && IsBorder)
{
Canvas.Children.Add(legendRect);
}
Canvas.GenerateLegendLines(dc.DataList, textHeight, lineLength);
SetCanvasPosition(canvas, legendRect);
}
public LineChartControlLib()
{
InitializeComponent();
ChartStyle = new ChartStyleGridLines();
DataCollection = new DataCollection<DataSeries>();
DataSeries = new DataSeries();
ChartStyle.TextCanvas = TextCanvas;
ChartStyle.ChartCanvas = ChartCanvas;
Legend = new NorthEastLegend {Canvas = LegendCanvas};
}