/// <summary>
/// Position PointChartItem
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void OnItemUnitPointChangedEvent(object sender, RoutedEventArgs e)
{
PointChart pointChart = sender as PointChart;
PointChartItem pointChartItem = e.OriginalSource as PointChartItem;
pointChart.UpdatePosition(pointChartItem, pointChart.ItemContainerGenerator.IndexFromContainer(pointChartItem));
}
/// <summary>
/// Recalc x y in pixel
/// </summary>
/// <param name="d">PointChartItem</param>
/// <param name="e">DependencyPropertyChangedEventArgs</param>
private static void PointPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
PointChartItem self = d as PointChartItem;
if (!self.internalIsLoaded)
{
return;
}
self.RaiseEvent(new RoutedEventArgs(PointChartItem.UnitPointChangedEvent, self));
}
/// <summary>
/// Update point chart item position
/// </summary>
/// <param name="pointChartItem">PointChartItem</param>
private void UpdatePosition(PointChartItem pointChartItem, int index)
{
if (PartDrawingArea == null || !internalIsLoaded)
{
return;
}
//Debug.WriteLine("UpdateSingle");
Point newPos = MathHelpers.ConvertUnitToPixelPoint(
new Point(pointChartItem.XUnitValue, pointChartItem.YUnitValue),
new CommonLibrary.Util.DrawingContext()
{
DrawingSize = PartDrawingArea.RenderSize,
XMaximum = XMaximum,
XMinimum = XMinimum,
YMaximum = YMaximum,
YMinimum = YMinimum
});
Canvas.SetLeft(pointChartItem, newPos.X);
Canvas.SetTop(pointChartItem, newPos.Y);
if (PartLine == null)
{
return;
}
if (index < PartLine.Points.Count)
{
PartLine.Points.RemoveAt(index);
}
PartLine.Points.Insert(index, newPos);
//Debug.WriteLine("Draw");
}
