/// <summary>
/// Handles the StateChanged event of a DataPoint.
/// </summary>
/// <param name="sender">Event source.</param>
/// <param name="e">Event arguments.</param>
private void DataPointStateChanged(object sender, RoutedPropertyChangedEventArgs<DataPointState> e)
{
DataPoint dataPoint = (DataPoint)sender;
if ((int)DataPointState.Hidden == dataPoint.State)
{
DataItems.Remove(DataItems.Where(di => di.DataPoint == dataPoint).Single());
RemovedDataItems();
}
}
/// <summary>
/// Handles the IndependentValueChanged event of a DataPoint.
/// </summary>
/// <param name="sender">Event source.</param>
/// <param name="e">Event arguments.</param>
private void DataPointIndependentValueChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
DataPoint dataPoint = (DataPoint)sender;
SeriesDefinition definition = DataItemFromDataPoint(dataPoint).SeriesDefinition;
TimeSpan transitionDuration = definition.TransitionDuration;
if (0 < transitionDuration.TotalMilliseconds)
{
dataPoint.BeginAnimation(DataPoint.ActualIndependentValueProperty, "ActualIndependentValue", e.NewValue, definition.TransitionDuration, definition.TransitionEasingFunction);
}
else
{
dataPoint.ActualIndependentValue = e.NewValue;
}
}
/// <summary>
/// Handles the ActualIndependentValueChanged event of a DataPoint.
/// </summary>
/// <param name="sender">Event source.</param>
/// <param name="e">Event arguments.</param>
private void DataPointActualIndependentValueChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
DataPoint dataPoint = (DataPoint)sender;
QueueUpdateDataItemPlacement(false, true, DataItems.Where(di => di.DataPoint == dataPoint));
}
/// <summary>
/// Updates the data point when the pie data point's actual offset ratio
/// is changed.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">Information about the event.</param>
private void OnPieDataPointActualOffsetRatioChanged(object sender, RoutedPropertyChangedEventArgs<double> args)
{
UpdateDataPoint(sender as DataPoint);
}
/// <summary>
/// Updates the data point when the pie data point's offset ratio is
/// changed.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">Information about the event.</param>
private void OnPieDataPointOffsetRatioChanged(object sender, RoutedPropertyChangedEventArgs<double> args)
{
DataPoint dataPoint = sender as DataPoint;
dataPoint.BeginAnimation(PieDataPoint.ActualOffsetRatioProperty, "ActualOffsetRatio", args.NewValue, TransitionDuration, this.TransitionEasingFunction);
}
/// <summary>
/// Handles data point actual dependent value property changes.
/// </summary>
/// <param name="sender">The data point.</param>
/// <param name="args">Information about the event.</param>
private void OnDataPointActualDependentValueChanged(object sender, RoutedPropertyChangedEventArgs<IComparable> args)
{
OnDataPointActualDependentValueChanged(sender as DataPoint, args.OldValue, args.NewValue);
}
/// <summary>
/// Handles data point independent value property changes.
/// </summary>
/// <param name="sender">The data point.</param>
/// <param name="args">Information about the event.</param>
private void OnDataPointIndependentValueChanged(object sender, RoutedPropertyChangedEventArgs<object> args)
{
OnDataPointIndependentValueChanged(sender as DataPoint, args.OldValue, args.NewValue);
}
/// <summary>
/// Method executed when a data point is either selected or unselected.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">Information about the event.</param>
private void OnDataPointIsSelectedChanged(object sender, RoutedPropertyChangedEventArgs<bool> e)
{
DataPoint dataPoint = sender as DataPoint;
if (e.NewValue)
{
Select(dataPoint);
}
else
{
Unselect(dataPoint);
}
}
/// <summary>
/// Rebuild the chart area if an axis location is changed.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">Information about the event.</param>
private void AxisLocationChanged(object sender, RoutedPropertyChangedEventArgs<AxisLocation> args)
{
Axis axis = (Axis)sender;
if (args.NewValue == AxisLocation.Auto)
{
throw new InvalidOperationException(Properties.Resources.Chart_AxisLocationChanged_CantBeChangedToAutoWhenHostedInsideOfASeriesHost);
}
SetEdge(axis);
_edgeAxes.Remove(axis);
_edgeAxes.Add(axis);
}
/// <summary>
/// Rebuilds the chart area if an axis orientation is changed.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">Information about the event.</param>
private void AxisOrientationChanged(object sender, RoutedPropertyChangedEventArgs<AxisOrientation> args)
{
Axis axis = (Axis)sender;
axis.Location = GetAutoAxisLocation(axis);
}
/// <summary>
/// Animates the value of the ActualSize property to the size property
/// when it changes.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">Information about the event.</param>
private void BubbleDataPointSizePropertyChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
{
BubbleDataPoint dataPoint = (BubbleDataPoint)sender;
DependencyPropertyAnimationHelper.BeginAnimation(
dataPoint,
BubbleDataPoint.ActualSizeProperty,
"ActualSize",
e.NewValue,
TransitionDuration,
this.TransitionEasingFunction);
}
/// <summary>
/// Updates all data points when the actual size property of a data
/// point changes.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">Information about the event.</param>
private void BubbleDataPointActualSizePropertyChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
{
Range<double> newRangeOfActualSizeValues = ActiveDataPoints.OfType<BubbleDataPoint>().Select(d => Math.Abs(d.ActualSize)).GetRange();
if (newRangeOfActualSizeValues == _rangeOfActualSizeValues)
{
// No range change - only need to update the current point
UpdateDataPoint((BubbleDataPoint)sender);
}
else
{
// Range has changed - need to update all points
UpdateDataPoints(ActiveDataPoints);
}
}
