/// <summary>
/// Occurs when a manipulation is complete.
/// </summary>
/// <param name="e">
/// The <see cref="OxyPlot.OxyMouseEventArgs" /> instance containing the event data.
/// </param>
public override void Completed(OxyMouseEventArgs e)
{
base.Completed(e);
e.Handled = true;
currentSeries = null;
PlotView.HideTracker();
}
/// <summary>
/// Occurs when the input device changes position during a manipulation.
/// </summary>
/// <param name="e">
/// The <see cref="OxyPlot.OxyMouseEventArgs" /> instance containing the event data.
/// </param>
public override void Delta(OxyMouseEventArgs e)
{
base.Delta(e);
e.Handled = true;
if (currentSeries == null)
{
PlotView.HideTracker();
return;
}
var actualModel = PlotView.ActualModel;
if (actualModel == null)
{
return;
}
if (!actualModel.PlotArea.Contains(e.Position.X, e.Position.Y))
{
return;
}
var time = currentSeries.InverseTransform(e.Position).X;
var points = currentSeries.Points;
if (points == null)
{
return;
}
DataPoint dp = points.FirstOrDefault(d => d.X >= time);
if (dp.X != 0 || dp.Y != 0)
{
int index = points.IndexOf(dp);
var ss = PlotView.ActualModel.Series.Cast <DataPointSeries>();
TrackParam[] values = new TrackParam[PlotView.ActualModel.Series.Count + 1];
values[0] = new TrackParam()
{
Title = ""
};
int i = 0;
for (i = 0; i < PlotView.ActualModel.Series.Count; i++)
{
values[i + 1] = new TrackParam()
{
Title = PlotView.ActualModel.Series[i].Title
};
}
values[0].Value = dp.X;
i = 1;
foreach (var series in ss)
{
values[i++].Value = series.Points[index].Y;
}
var position = XAxis.Transform(dp.X, dp.Y, currentSeries.YAxis);
position = new ScreenPoint(position.X, e.Position.Y);
var result = new WpbTrackerHitResult(values)
{
Series = currentSeries,
DataPoint = dp,
Index = index,
Item = dp,
Position = position,
PlotModel = PlotView.ActualModel
};
PlotView.ShowTracker(result);
}
}
