protected override void OnPointerPressed(PointerRoutedEventArgs e)
{
if (EnableSegmentDragging)
{
OnChartDragStart(e.GetCurrentPoint(SeriesPanel).Position, e.OriginalSource);
SeriesPanel.CapturePointer(e.Pointer);
}
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerRoutedEventArgs e)
{
if ((EnableSegmentDragging || EnableSeriesDragging) && PreviewSeries == null && DraggingSegment == null && e.Pointer.PointerDeviceType == PointerDeviceType.Touch)
{
SeriesPanel.CapturePointer(e.Pointer);
var mousePos = e.GetCurrentPoint(SeriesPanel).Position;
var element = e.OriginalSource as FrameworkElement;
if (element != null && element.Tag is ChartSegment)
{
if (Math.Abs(mousePos.X - mousePos.X) < 20 && Math.Abs(mousePos.Y - mousePos.Y) < 20)
{
ActivateDragging(mousePos, e.OriginalSource);
}
}
}
else if (EnableSeriesDragging)
{
OnChartDragDelta(e.GetCurrentPoint(SeriesPanel).Position, e.OriginalSource);
}
else
{
base.OnPointerMoved(e);
}
}