internal void InsertChild(TreeViewItemData <T> child, int index)
{
if (index < 0 || index >= m_Children.Count)
{
m_Children.Add(child);
}
else
{
m_Children.Insert(index, child);
}
}
internal void ReplaceChild(TreeViewItemData <T> newChild)
{
if (!hasChildren)
{
return;
}
var i = 0;
foreach (var child in m_Children)
{
if (child.id == newChild.id)
{
m_Children.RemoveAt(i);
m_Children.Insert(i, newChild);
break;
}
i++;
}
}
internal static void AddItem(BaseTreeView treeView, TreeViewItemData <T> item, int parentId = -1, int childIndex = -1, bool rebuildTree = true)
{
if (treeView.viewController is TDefaultController defaultController)
{
defaultController.AddItem(item, parentId, childIndex, rebuildTree);
if (rebuildTree)
{
treeView.RefreshItems();
}
return;
}
Type dataSourceType = null;
if (treeView.viewController?.GetType().GetGenericTypeDefinition() == typeof(TDefaultController).GetGenericTypeDefinition())
{
dataSourceType = treeView.viewController?.GetType().GetGenericArguments()[0];
}
throw new ArgumentException($"Type parameter ({typeof(T)}) differs from data source ({dataSourceType})and is not recognized by the controller.");
}
internal void AddChild(TreeViewItemData <T> child)
{
m_Children.Add(child);
}