/// <summary>
/// Resets the segment drag tooltip information.
/// </summary>
private void ResetSegmentDragTooltipInfo()
{
if (highTooltip != null)
{
SeriesPanel.Children.Remove(highTooltip);
highTooltip = null;
highDragInfo = null;
}
if (lowTooltip != null)
{
SeriesPanel.Children.Remove(lowTooltip);
lowTooltip = null;
lowDragInfo = null;
}
}
internal void UpdateSegmentDragValueToolTipHigh(Point pos, ChartSegment segment, double newValue, double offsetY)
{
if (!EnableDragTooltip)
{
return;
}
if (highTooltip == null)
{
highDragInfo = new ChartDragSegmentInfo()
{
PostfixLabelTemplate = ActualYAxis.PostfixLabelTemplate, PrefixLabelTemplate = ActualYAxis.PostfixLabelTemplate
};
highTooltip = new ContentControl {
Content = highDragInfo
};
SeriesPanel.Children.Add(highTooltip);
if (DragTooltipTemplate == null)
{
highTooltip.ContentTemplate = IsActualTransposed ? ChartDictionaries.GenericCommonDictionary["SegmentDragInfoOppRight"] as DataTemplate :
ChartDictionaries.GenericCommonDictionary["SegmentDragInfo"] as DataTemplate;
}
else
{
highTooltip.ContentTemplate = DragTooltipTemplate;
}
}
highDragInfo.Segment = segment;
highDragInfo.Brush = segment.Interior;
highDragInfo.ScreenCoordinates = pos;
((ChartDragSegmentInfo)highDragInfo).NewValue = newValue;
highDragInfo.Segment = segment;
highTooltip.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
if (IsActualTransposed)
{
if (pos.X < 0)
{
Canvas.SetTop(highTooltip, pos.Y - highTooltip.DesiredSize.Height / 2);
Canvas.SetLeft(highTooltip, 0);
}
else
{
Canvas.SetTop(highTooltip, pos.Y - highTooltip.DesiredSize.Height / 2);
Canvas.SetLeft(highTooltip, pos.X);
}
}
else
{
double posY = pos.Y - highTooltip.DesiredSize.Height;
if (posY < 0)
{
Canvas.SetTop(highTooltip, 0);
Canvas.SetLeft(highTooltip, pos.X - highTooltip.DesiredSize.Width / 2);
}
else
{
Canvas.SetTop(highTooltip, posY);
Canvas.SetLeft(highTooltip, pos.X - highTooltip.DesiredSize.Width / 2);
}
}
}
