protected Brush GetStrokeBySlice(PieSliceVal slice)
{
Color c = this.predefinedColors.Length > slice.Index
? predefinedColors[slice.Index]
: Colors.Black;
return(new SolidColorBrush {
Color = c
});
}
protected ArcSegment GetArc(double radius, double angle, PieSliceVal slice, SweepDirection direction = SweepDirection.Clockwise)
{
var arcSegment = new ArcSegment();
var endOfArc = ToPoint(angle, radius);
arcSegment.IsLargeArc = slice.Value >= 180.0;
arcSegment.Point = endOfArc;
arcSegment.Size = new Size(radius, radius);
arcSegment.SweepDirection = direction;
arcSegment.IsSmoothJoin = true;
return(arcSegment);
}
protected void SetStyle(Path path, PieSliceVal slice)
{
var style = GetStyle(slice, path);
if (style != null)
{
path.Style = style;
}
else
{
path.Stroke = GetStrokeBySlice(slice);
path.Fill = GetFillBySlice(slice);
}
}
private Brush GetStrokeBySlice(PieSliceVal slice)
{
if (this.sliceStrokes.Length > slice.Index)
{
return(this.sliceStrokes[slice.Index]);
}
if (SliceStroke != null)
{
return(SliceStroke);
}
Color c = this.predefinedColors.Length > slice.Index
? predefinedColors[slice.Index]
: Colors.Black;
return(new SolidColorBrush {
Color = c
});
}
private Style GetStyle(PieSliceVal slice, Path path)
{
return(SliceStyleSelector?.SelectStyle(slice.Index, path));
}
private string GetToolTip(PieSliceVal slice)
{
return(!string.IsNullOrEmpty(ToolTipFormattingString) ? string.Format(ToolTipFormattingString, CalcPercentage(slice.Value)) : CalcPercentage(slice.Value).ToString(CultureInfo.InvariantCulture));
}