void UpdateLabels()
{
if (_loaded)
{
if (Chart != null)
{
var state = new ChartState(Chart);
if (!state.Equals(_state))
{
Debug.WriteLine("ChartLabels_LayoutUpdates -> Render");
_state = state;
Render();
}
}
}
}
void UpdateLabels()
{
if (_loaded)
{
if (Chart != null)
{
var state = new ChartState(Chart);
if (!state.Equals(_state))
{
Debug.WriteLine("ChartLabels_LayoutUpdates -> Render");
_state = state;
Render();
}
}
}
}
void Render()
{
if (!_loaded || UpdateCount > 0)
return;
if (Chart != null)
{
var prect = Chart.View.PlotRect;
var bnds = new Rect(0,0,prect.Width, prect.Height);
bnds.Inflate(1, 1);
var offset = Chart.TranslatePoint(new Point(), (UIElement)this.Parent);
offset.X = prect.X - offset.X;
offset.Y = prect.Y - offset.Y;
foreach (var label in Children)
{
if (!base.Children.Contains(label))
base.Children.Add(label);
var line = label.ConnectingLine;
if (!base.Children.Contains(line))
base.Children.Add(line);
if (!Chart.ChartType.ToString().StartsWith("Pie"))
{
label.UpdateAttachPoint(Chart, offset);
if (bnds.Contains(label.AttachPoint))
label.Visibility = Visibility.Visible;
else
label.Visibility = Visibility.Collapsed;
}
else
label.UpdateAttachPoint(Chart, new Point());
}
if (LabelArranger != null)
LabelArranger.Arrange(Children.ToArray(), OccupiedRects, new Rect(0, 0, prect.Width, prect.Height));
foreach (var label in Children)
{
var line = label.ConnectingLine;
var pt = label.AttachPoint;
line.X1 = pt.X; line.Y1 = pt.Y;
var pt1 = LabelHelper.GetConnectingPoint(label);
if (!double.IsNaN(pt1.X) && !double.IsNaN(pt1.Y))
{
line.X2 = pt1.X; line.Y2 = pt1.Y;
}
}
_state = new ChartState(Chart);
}
}
void Render()
{
if (!_loaded || UpdateCount > 0)
{
return;
}
if (Chart != null)
{
var prect = Chart.View.PlotRect;
var bnds = new Rect(0, 0, prect.Width, prect.Height);
bnds.Inflate(1, 1);
var offset = Chart.TranslatePoint(new Point(), (UIElement)this.Parent);
offset.X = prect.X - offset.X;
offset.Y = prect.Y - offset.Y;
foreach (var label in Children)
{
if (!base.Children.Contains(label))
{
base.Children.Add(label);
}
var line = label.ConnectingLine;
if (!base.Children.Contains(line))
{
base.Children.Add(line);
}
if (!Chart.ChartType.ToString().StartsWith("Pie"))
{
label.UpdateAttachPoint(Chart, offset);
if (bnds.Contains(label.AttachPoint))
{
label.Visibility = Visibility.Visible;
}
else
{
label.Visibility = Visibility.Collapsed;
}
}
else
{
label.UpdateAttachPoint(Chart, new Point());
}
}
if (LabelArranger != null)
{
LabelArranger.Arrange(Children.ToArray(), OccupiedRects, new Rect(0, 0, prect.Width, prect.Height));
}
foreach (var label in Children)
{
var line = label.ConnectingLine;
var pt = label.AttachPoint;
line.X1 = pt.X; line.Y1 = pt.Y;
var pt1 = LabelHelper.GetConnectingPoint(label);
if (!double.IsNaN(pt1.X) && !double.IsNaN(pt1.Y))
{
line.X2 = pt1.X; line.Y2 = pt1.Y;
}
}
_state = new ChartState(Chart);
}
}
