protected void RenderLegend(CanvasWrapper canvasWrapper, Axis axis, SKCanvas canvas,
PointPlotVariant plotVariant)
{
var start = (canvasWrapper.ChartArea.Bottom + 60);
var end = start + (40f * canvasWrapper.NumberPlottedChart);
var leftEdge = canvasWrapper.ChartArea.Left + 10;
float heightPaddingForText = 0;
canvas.Save();
axis.AntiOrientAxis(float.MaxValue);
switch (plotVariant)
{
case PointPlotVariant.LineChart:
_chartPaint.IsStroke = false;
heightPaddingForText = 7;
canvas.DrawLine(leftEdge, end, canvasWrapper.ChartArea.Left + 40, end, _chartPaint);
break;
case PointPlotVariant.ScatterChart:
_chartPaint.IsStroke = false;
heightPaddingForText = 7;
canvas.DrawCircle(leftEdge + 20, end, 7, _chartPaint);
break;
case PointPlotVariant.AreaChart:
heightPaddingForText = 15;
canvas.DrawRect(leftEdge, end, 37, 25, _chartPaint);
break;
default:
break;
}
canvas.Restore();
axis.DrawAndPositionLegend(ChartName, end + heightPaddingForText, leftEdge + 40, _chartPaint);
}
protected void RenderLegend(CanvasWrapper canvasWrapper, Axis axis, SKCanvas canvas,
PointPlotVariant plotVariant)
{
canvasWrapper.NumberOfDrawnLegend++;
float start;
if (canvasWrapper.ThisIsiOSOrAndroid)
{
start = canvasWrapper.ChartArea.Bottom + MarginFromChartToLegend;
}
else
{
start = (canvasWrapper.Converter.YOffset * 2) + MarginFromChartToLegend;
}
float end = 0;
float leftEdge = 0;
end = start + (canvasWrapper.LegendItemSpacing * canvasWrapper.NumberOfDrawnLegend);
leftEdge = canvasWrapper.LegendDrawingStartX + LeftEdgeLegendMargin;
float heightPaddingForText = 0;
canvas.Save();
axis.AntiOrientAxis(float.MaxValue);
switch (plotVariant)
{
case PointPlotVariant.LineChart:
_chartPaint.IsStroke = false;
heightPaddingForText = 7;
canvas.DrawLine(leftEdge, end, canvasWrapper.LegendDrawingStartX + canvasWrapper.LegendItemSpacing,
end, _chartPaint);
break;
case PointPlotVariant.ScatterChart:
_chartPaint.IsStroke = false;
heightPaddingForText = 7;
canvas.DrawCircle(leftEdge + DistanceToCenterOfLegendCircle,
end, 7, _chartPaint);
if (!canvasWrapper.ThisIsiOSOrAndroid)
{
leftEdge += 10;
}
break;
case PointPlotVariant.AreaChart:
heightPaddingForText = 15;
canvas.DrawRect(leftEdge, end, WidthOfLegendRect, HeightOfLegendRect
, _chartPaint);
if (!canvasWrapper.ThisIsiOSOrAndroid)
{
leftEdge += WidthOfLegendRect;
}
break;
default:
break;
}
canvas.Restore();
axis.DrawAndPositionLegend(ChartName, end + heightPaddingForText,
leftEdge + canvasWrapper.LegendItemSpacing, _chartPaint);
if (canvasWrapper.NumberOfDrawnLegend == NumberOfLegendItem)
{
canvasWrapper.LegendDrawingStartX += canvasWrapper.ChartArea.Width / (NumberOfLegendItem + 1);
canvasWrapper.NumberOfDrawnLegend = 0;
}
}
