private Size CalculateBoundingBoxes(RadDiagramShape node)
{
if (!node.HasChildren())
{
var size = new Size(node.ActualBounds.Width, node.ActualBounds.Height);
this.sizeCache.Add(node.Id, size);
return size;
}
double width = 0;
double height = 0;
Size shapeBox;
var children = GetChildren(node);
foreach (var child in children)
{
shapeBox = this.CalculateBoundingBoxes(child);
width += shapeBox.Width;
height = Math.Max(height, shapeBox.Height);
}
width += (children.Count() - 1) * this.HorizontalLevelSeparation;
height += this.HorizontalLevelSeparation + node.ActualBounds.Height;
shapeBox = new Size(width, height);
this.sizeCache.Add(node.Id, shapeBox);
return shapeBox;
}
private void LayoutShape(RadDiagramShape node, Point point)
{
if (!node.HasChildren())
{
node.Position = new Point(point.X, point.Y);
}
else
{
double x, y;
Point selfLocation;
var boundingBox = this.sizeCache[node.Id];
selfLocation = new Point(point.X + ((boundingBox.Width - node.ActualBounds.Width) / 2), point.Y);
node.Position = selfLocation;
if (Math.Abs(selfLocation.X - point.X) < Telerik.Windows.Diagrams.Core.Utils.Epsilon)
{
x = point.X + ((node.ActualBounds.Width - boundingBox.Width) / 2);
}
else
{
x = point.X;
}
var children = GetChildren(node);
foreach (var childNode in children)
{
y = selfLocation.Y + this.VerticalLevelSeparation + node.ActualBounds.Height;
var childPoint = new Point(x, y);
this.LayoutShape(childNode, childPoint);
var size = this.sizeCache[childNode.Id];
x += size.Width + this.HorizontalLevelSeparation;
}
}
}
