private void Add()
{
if (!AllItems.Any(x => x.IsEmpty))
{
AllItems.Insert(0, new NamespaceItem(""));
}
}
/// <summary>
/// Adds (inserts before) a child KmlItem to this nodes lists of children.
/// If item to insert before is null or not contained, it will be added at the end.
/// This is the basic add method, derived classes can override but should
/// always call base.Add(beforeItem, newItem) within.
/// Public Add, AddRange, InsertBefore and InsertAfter all use this protected
/// method to access the lists.
/// <see cref="KML.KmlNode.Add(KML.KmlItem)"/>
/// </summary>
/// <param name="beforeItem">The KmlItem where the new item should be inserted before</param>
/// <param name="newItem">The KmlItem to add</param>
protected virtual void Add(KmlItem beforeItem, KmlItem newItem)
{
// ensure that item.Parent is this node
if (newItem.Parent != this)
{
RemapParent(newItem, this);
}
// Not add always to end of AllItems, add well ordered: attribs first, then nodes.
// Like Add(attrib), Add(Node), Add(attrib) should result in attrib, attrib, node
if (newItem is KmlAttrib && !(beforeItem is KmlAttrib) && Children.Count > 0)
{
Syntax.Warning(newItem, "KML attribute should not come after nodes, will be fixed when saved");
beforeItem = Children[0];
}
if (beforeItem != null && AllItems.Contains(beforeItem))
{
AllItems.Insert(AllItems.IndexOf(beforeItem), newItem);
}
else
{
AllItems.Add(newItem);
}
if (newItem is KmlNode)
{
if (beforeItem is KmlNode && Children.Contains((KmlNode)beforeItem))
{
Children.Insert(Children.IndexOf((KmlNode)beforeItem), (KmlNode)newItem);
}
else
{
Children.Add((KmlNode)newItem);
}
InvokeChildrenChanged();
}
else if (newItem is KmlAttrib)
{
KmlAttrib attrib = (KmlAttrib)newItem;
if (attrib.Name.ToLower() == "name")
{
if (Name.Length == 0)
{
Name = attrib.Value;
// Get notified when Name changes
attrib.AttribValueChanged += Name_Changed;
attrib.CanBeDeleted = false;
// And notify that the name changed
InvokeToStringChanged();
}
}
if (beforeItem is KmlAttrib && Attribs.Contains((KmlAttrib)beforeItem))
{
Attribs.Insert(Attribs.IndexOf((KmlAttrib)beforeItem), attrib);
}
else
{
Attribs.Add(attrib);
}
InvokeAttribChanged();
}
else
{
if (beforeItem != null && Unknown.Contains(newItem))
{
Unknown.Insert(Unknown.IndexOf(beforeItem), newItem);
}
else
{
Unknown.Add(newItem);
}
Syntax.Warning(this, "Unknown line in persistence file: " + newItem.ToString());
}
}
