private static void OnDoughnutSizeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var series = d as DoughnutSeries;
series.InternalDoughnutSize = ChartMath.MinMax((double)e.NewValue, 0, 1);
series.UpdateArea();
}
private static void OnPieCoefficientPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var series = d as PieSeries;
series.InternalPieCoefficient = ChartMath.MinMax((double)e.NewValue, 0, 1);
series.UpdateArea();
}
/// <summary>
/// Updates the series when doughnut coefficient changed.
/// </summary>
/// <param name="d">The Dependency Object</param>
/// <param name="e">The Event Arguments</param>
private static void OnDoughnutCoefficientChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var doughnutSeries3D = d as DoughnutSeries3D;
doughnutSeries3D.InternlDoughnutCoefficient = ChartMath.MinMax((double)e.NewValue, 0, 1);
doughnutSeries3D.UpdateArea();
}
private static void OnDoughnutHoleSizeChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
var chartArea = sender as SfChart;
if (chartArea != null)
{
chartArea.InternalDoughnutHoleSize = ChartMath.MinMax((double)e.NewValue, 0, 1);
chartArea.ScheduleUpdate();
}
}
/// <summary>
/// Updates the series when the circle coefficient changes.
/// </summary>
/// <param name="sender">The Sender</param>
/// <param name="e">The Dependency Object</param>
private static void OnCircleCoefficientChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
var circularSeriesBase3D = sender as CircularSeriesBase3D;
if (circularSeriesBase3D != null)
{
circularSeriesBase3D.InternalCircleCoefficient = ChartMath.MinMax((double)e.NewValue, 0, 1);
circularSeriesBase3D.UpdateArea();
}
}
/// <summary>
/// Updates the <see cref="ZoomOut"/> icon.
/// </summary>
/// <param name="e">The Event Arguments</param>
protected override void OnPointerPressed(PointerRoutedEventArgs e)
{
if (this.Source.ChartArea.AreaType != ChartAreaType.CartesianAxes)
{
return;
}
bool canZoom = false;
int updatedAxes = 0;
foreach (ChartAxisBase2D axis in this.Source.ChartArea.Axes)
{
if (axis.RegisteredSeries.Count > 0 && (axis.RegisteredSeries[0] as CartesianSeries) != null && (axis.RegisteredSeries[0] as CartesianSeries).IsActualTransposed)
{
if ((axis.Orientation == Orientation.Horizontal && (Source.ZoomMode == ZoomMode.Y || Source.ZoomMode == ZoomMode.XY)) ||
(axis.Orientation == Orientation.Vertical && (Source.ZoomMode == ZoomMode.X || Source.ZoomMode == ZoomMode.XY)))
{
canZoom = true;
}
}
else
{
if ((axis.Orientation == Orientation.Vertical && (Source.ZoomMode == ZoomMode.Y || Source.ZoomMode == ZoomMode.XY)) ||
(axis.Orientation == Orientation.Horizontal && (Source.ZoomMode == ZoomMode.X || Source.ZoomMode == ZoomMode.XY)))
{
canZoom = true;
}
}
if (canZoom)
{
var origin = 0.5;
double currentScale = Math.Max(1 / ChartMath.MinMax(axis.ZoomFactor, 0, 1), 1);
double cumulativeScale = Math.Max(currentScale + (0.25 * -1), 1);
Source.Zoom(cumulativeScale, origin > 1d ? 1d : origin < 0d ? 0d : origin, axis);
}
canZoom = false;
if (axis.ZoomFactor == 1 || axis.ZoomPosition == 0)
{
updatedAxes++;
}
}
e.Handled = true;
}
