/// <summary>
/// Set the initial layout state such that our current margin is stored and the new margin is taken from the given rb
/// </summary>
public void SetInitialLayoutState(RectangularClusterBoundary bounds)
{
isInInitialLayoutState = true;
if (RectangularBoundary != null && bounds != null)
{
RectangularBoundary.StoreDefaultMargin();
RectangularBoundary.LeftMargin = bounds.LeftMargin;
RectangularBoundary.RightMargin = bounds.RightMargin;
RectangularBoundary.BottomMargin = bounds.BottomMargin;
RectangularBoundary.TopMargin = bounds.TopMargin;
}
}
/// <summary>
/// Calculate cluster's RectangularBoundary to preserve the offsets calculated in initial layout, for example,
/// to allow for extra space required for non-shortest path edge routes or for labels.
/// </summary>
/// <param name="padding">amount of padding between child node bounding box and expected inner bounds</param>
internal void SetInitialLayoutState(double padding)
{
isInInitialLayoutState = true;
if (RectangularBoundary != null)
{
RectangularBoundary.StoreDefaultMargin();
var childBounds =
new Rectangle(from v in Nodes.Concat(Clusters) select v.BoundingBox);
childBounds.Pad(padding);
RectangularBoundary.LeftMargin = childBounds.Left - RectangularBoundary.Rect.Left;
RectangularBoundary.RightMargin = RectangularBoundary.Rect.Right - childBounds.Right;
RectangularBoundary.BottomMargin = childBounds.Bottom - RectangularBoundary.Rect.Bottom;
RectangularBoundary.TopMargin = RectangularBoundary.Rect.Top - childBounds.Top;
}
}
