// Called by the TextPointer ctor. Initializes this instance.
private void Initialize(TextContainer tree, TextTreeNode node, ElementEdge edge, LogicalDirection gravity, uint generation,
bool caretUnitBoundaryCache, bool isCaretUnitBoundaryCacheValid, uint layoutGeneration)
{
_tree = tree;
// Fixup of the target node based on gravity.
// Positions always cling to a node edge that matches their gravity,
// so that insert ops never affect the position.
RepositionForGravity(ref node, ref edge, gravity);
SetNodeAndEdge(node.IncrementReferenceCount(edge), edge);
_generation = generation;
this.CaretUnitBoundaryCache = caretUnitBoundaryCache;
this.IsCaretUnitBoundaryCacheValid = isCaretUnitBoundaryCacheValid;
_layoutGeneration = layoutGeneration;
VerifyFlags();
tree.AssertTree();
AssertState();
}
