/// <summary>
/// Handles the event when the <see cref="Population"/> property changes.
/// </summary>
/// <param name="obj">The <see cref="DependencyObject"/> that owns the property.</param>
/// <param name="e">The <see cref="DependencyPropertyChangedEventArgs"/> associated with the event.</param>
private static void OnPopulationChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
FitnessChart fitnessChart = (FitnessChart)obj;
if (e.OldValue is Population oldPopulation && oldPopulation.Algorithm != null)
{
oldPopulation.Algorithm.FitnessEvaluated -= fitnessChart.Algorithm_FitnessEvaluated;
oldPopulation.Algorithm.AlgorithmCompleted -= fitnessChart.Algorithm_AlgorithmCompleted;
}
if (e.NewValue != null && fitnessChart.Population.Algorithm != null)
{
fitnessChart.Population.Algorithm.FitnessEvaluated += fitnessChart.Algorithm_FitnessEvaluated;
fitnessChart.Population.Algorithm.AlgorithmCompleted += fitnessChart.Algorithm_AlgorithmCompleted;
// Whenever the user switches populations, refresh the chart to show the selected population.
// The population will also be changed when the algorithm is being initialized. In that case,
// it may not yet be fully populated so only refresh the chart if its reached the min. pop. size.
if (fitnessChart.Population.Entities.Count >= fitnessChart.Population.MinimumPopulationSize)
{
fitnessChart.TryInitializeStopwatch();
fitnessChart.RefreshChart(true);
}
}
else
{
fitnessChart.columnSeries.ItemsSource = null;
fitnessChart.stopwatch = null;
}
}
/// <summary>
/// Handles the event when the <see cref="FitnessSortOption"/> property changes.
/// </summary>
/// <param name="obj">The <see cref="DependencyObject"/> that owns the property.</param>
/// <param name="e">The <see cref="DependencyPropertyChangedEventArgs"/> associated with the event.</param>
private static void OnFitnessSortOptionChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
FitnessChart fitnessChart = (FitnessChart)obj;
fitnessChart.RefreshChart(true);
}
