private void RefreshUI()
{
foreach (PieSlice sliceControl in xSlices.Children.OfType<PieSlice>())
{
sliceControl.MouseMove -= OnSliceMouseMove;
}
xSlices.Children.Clear();
double numFractions = _sliceWeights.Length;
double acc = 0.0;
for (int i = 0; i < _sliceWeights.Length; ++i)
{
double sliceWeight = _sliceWeights[i];
Color sliceColor = _colorSpace[i];
PieSlice sliceControl = new PieSlice();
sliceControl.StartDegree = acc;
sliceControl.EndDegree = Math.Min(acc + sliceWeight * 360.0, 359.9);
sliceControl.Color = sliceColor;
sliceControl.MouseMove += OnSliceMouseMove;
sliceControl.MouseDown += OnSliceMouseDown;
sliceControl.MouseLeave += OnSliceMouseLeave;
sliceControl.MouseUp += OnSliceMouseUp;
xSlices.Children.Add(sliceControl);
acc = sliceControl.EndDegree;
}
foreach (PieSlice slice in this.xSlices.Children)
{
if (_enableArrows && slice.ChildContent == null)
{
Arrow arrow = new Arrow();
arrow.Width = 5;
arrow.Height = 5;
arrow.RenderTransform = new RotateTransform(180);
arrow.RenderTransformOrigin = new Point(0.5, 0.5);
arrow.HorizontalAlignment = HorizontalAlignment.Center;
arrow.VerticalAlignment = VerticalAlignment.Center;
arrow.Margin = new Thickness(0, -2, 0, 0);
arrow.IsHitTestVisible = false;
slice.ChildContent = arrow;
}
else if (!_enableArrows && slice.ChildContent != null)
{
slice.ChildContent = null;
}
}
}
