/// <summary>
/// Force redraw after data has been updated
/// </summary>
private void ForceRedraw()
{
State = HistogramState.Ready;
Dispatcher.Invoke((Action)
delegate()
{
InvalidateVisual();
}
);
}
/// <summary>
/// Overridden method that is invoked when a redraw is required
/// </summary>
/// <param name="dc"></param>
protected override void OnRender(DrawingContext dc)
{
if (State != HistogramState.Ready) return;
State = HistogramState.Redraw;
if(Data == null || Data.Count == 0)
RenderEmpty(dc);
else
{
var box = CalculateBox();
RenderBox(dc, box);
RenderHints(dc, box);
RenderColumns(dc, box);
}
State = HistogramState.Ready;
}
