private void Add(object sender, NotifyCollectionChangedEventArgs args)
{
if ((args.NewItems == null) || (args.NewItems.Count == 0))
{
return;
}
foreach (object item in args.NewItems)
{
SeriesDataItem dataItem = item as SeriesDataItem;
if (dataItem.Value < 0)
{
dataItem.Value = 50.0;
}
if (_chartPoints.Count < _chartPoints.Capacity)
{
_chartPoints.Add(100.0 - dataItem.Value);
DrawSeries();
}
else
{
// shift points in the array
for (int i = 1; i < _chartPoints.Count; i++)
{
_chartPoints[i - 1] = _chartPoints[i];
}
_chartPoints[_chartPoints.Count - 1] = 100.0 - dataItem.Value;
DrawSeries();
//_chartClock.Controller.Begin();
if (_updateInterval.Ticks > 0)
{
uiTimer.Stop();
_chartCanvas.SetValue(Canvas.LeftProperty, (double)0);
timerFrame = 0.0;
uiTimer.Start();
}
}
}
}
private void OnInitialized(object sender, EventArgs e)
{
_updateInterval = TimeSpan.FromMilliseconds(this.UpdateInterval);
//init the items collection
_seriesDataItems = new SeriesDataItems();
// initialize chart points buffer
_chartPoints = new List <double>(this.Points + 2);
// are there items provided inline
if (this.ItemsSource == null && this.Items.Count > 0)
{
foreach (object item in this.Items)
{
if (item.GetType() == typeof(SeriesDataItem))
{
SeriesDataItem dataItem = item as SeriesDataItem;
_chartPoints.Add(100.0 - dataItem.Value);
}
}
}
else
{
for (int i = 0; i < _chartPoints.Capacity; i++)
{
_chartPoints.Add(100.0);
}
}
if (_updateInterval.Ticks > 0)
{
//start the uitimer
uiTimer = new System.Windows.Threading.DispatcherTimer();
uiTimer.Interval = TimeSpan.FromMilliseconds(timerFrameRate);
uiTimer.Tick += new EventHandler(uiTimer_Tick);
uiTimer.Stop();
}
}