/// <summary>
/// Layouts and calculates the space used by the pie chart.
/// </summary>
internal override void Format()
{
ChartRendererInfo cri = (ChartRendererInfo)this.rendererParms.RendererInfo;
LegendRenderer lr = new PieLegendRenderer(this.rendererParms);
lr.Format();
// Calculate rects and positions.
XRect chartRect = LayoutLegend();
cri.plotAreaRendererInfo.Rect = chartRect;
double edge = Math.Min(chartRect.Width, chartRect.Height);
cri.plotAreaRendererInfo.X += (chartRect.Width - edge) / 2;
cri.plotAreaRendererInfo.Y += (chartRect.Height - edge) / 2;
cri.plotAreaRendererInfo.Width = edge;
cri.plotAreaRendererInfo.Height = edge;
DataLabelRenderer dlr = new PieDataLabelRenderer(this.rendererParms);
dlr.Format();
// Calculated remaining plot area, now it's safe to format.
PlotAreaRenderer renderer = GetPlotAreaRenderer();
renderer.Format();
dlr.CalcPositions();
}
/// <summary>
/// Draws the pie chart.
/// </summary>
internal override void Draw()
{
LegendRenderer lr = new PieLegendRenderer(this.rendererParms);
lr.Draw();
WallRenderer wr = new WallRenderer(this.rendererParms);
wr.Draw();
PlotAreaBorderRenderer pabr = new PlotAreaBorderRenderer(this.rendererParms);
pabr.Draw();
PlotAreaRenderer renderer = GetPlotAreaRenderer();
renderer.Draw();
DataLabelRenderer dlr = new PieDataLabelRenderer(this.rendererParms);
dlr.Draw();
}
/// <summary>
/// Returns an initialized and renderer specific rendererInfo.
/// </summary>
internal override RendererInfo Init()
{
ChartRendererInfo cri = new ChartRendererInfo();
cri.chart = (Chart)this.rendererParms.DrawingItem;
this.rendererParms.RendererInfo = cri;
InitSeries(cri);
LegendRenderer lr = new PieLegendRenderer(this.rendererParms);
cri.legendRendererInfo = (LegendRendererInfo)lr.Init();
PlotArea plotArea = cri.chart.PlotArea;
PlotAreaRenderer renderer = GetPlotAreaRenderer();
cri.plotAreaRendererInfo = (PlotAreaRendererInfo)renderer.Init();
DataLabelRenderer dlr = new PieDataLabelRenderer(this.rendererParms);
dlr.Init();
return(cri);
}
