private PNodeList unselectList = null; // Used within drag handler temporarily
#endregion Fields
#region Constructors
/// <summary>
/// Constructs a new PSelectionEventHandler that will handle selection for the
/// children of the given selectable parent node.
/// </summary>
/// <param name="marqueeParent">
/// The node to which the event handler dynamically adds a marquee (temporarily)
/// to represent the area being selected.
/// </param>
/// <param name="selectableParent">
/// The node whose children will be selected by this event handler.
/// </param>
public PSelectionEventHandler(PNode marqueeParent, PNode selectableParent)
{
this.marqueeParent = marqueeParent;
selectableParents = new PNodeList();
selectableParents.Add(selectableParent);
Init();
}
/// <summary>
/// Removes bounds handles from the given node.
/// </summary>
/// <param name="aNode">The node to remove the bounds handles from.</param>
public static void RemoveBoundsHandlesFrom(PNode aNode)
{
PNodeList handles = new PNodeList();
PNodeList children = aNode.ChildrenReference;
foreach (PNode each in children) {
if (each is PBoundsHandle) {
handles.Add(each);
}
}
aNode.RemoveChildren(handles);
}
/// <summary>
/// Get a list of all neighbors (parent, siblings and children).
/// </summary>
/// <returns>A list of all neighbors.</returns>
public virtual PNodeList GetNeighbors()
{
PNodeList result = new PNodeList();
if (focusNode == null) return result;
if (focusNode.Parent == null) return result;
PNode focusParent = focusNode.Parent;
PNodeList focusParentChildren = focusParent.ChildrenReference;
foreach (PNode each in focusParentChildren) {
if (each != focusNode && each.Pickable) {
result.Add(each);
}
}
result.Add(focusParent);
PNodeList focusChildren = focusNode.ChildrenReference;
foreach(PNode each in focusChildren) {
result.Add(each);
}
return result;
}
