private void OnSelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> args)
{
OutlineTreeViewItem item = (OutlineTreeViewItem)args.NewValue;
if (args.Handled != true && item != null && item.Destination != null && controller.IsOpen)//that can happen when its not loaded yet and its only a stub
{
controller.SetDestination(item.Destination);
args.Handled = true;
}
}
/// <summary>
/// Add the outlineItems from enumerator-List to the parent
/// </summary>
/// <param name="parent"></param>
/// <param name="enumerator"></param>
/// <returns>Whether the enumerator has reached the end of the collection</returns>
private bool recursivelyAddOutlines(ItemsControl parent, IEnumerator <PdfOutlineItem> enumerator)
{
PdfOutlineItem outlineItem;
while (true)
{
outlineItem = enumerator.Current;
OutlineTreeViewItem treeViewItem = new OutlineTreeViewItem(outlineItem, controller);
parent.Items.Add(treeViewItem);
if (!enumerator.MoveNext())
{
return(true);
}
if (outlineItem.descendants)
{
if (enumerator.Current.level <= outlineItem.level)
{
//the child is not loaded yet. insert a stub
treeViewItem.Items.Add(new OutlineTreeViewItem(controller));
}
else
{
treeViewItem.ExpandSubtree();
if (recursivelyAddOutlines(treeViewItem, enumerator))
{
return(true);
}
}
}
if (enumerator.Current.level < outlineItem.level)
{
return(false);
}
}
}