void ArrangeChildRows(ArrangeInfo p_info, TvItem p_item)
{
if (p_item.Children.Count == 0)
{
return;
}
if (p_item.IsExpanded)
{
foreach (var item in p_item.Children)
{
var elem = (UIElement)Children[p_info.Index];
elem.Arrange(new Rect(0, p_info.Top, p_info.FinalSize.Width, elem.DesiredSize.Height));
p_info.Top += elem.DesiredSize.Height;
p_info.Index++;
ArrangeChildRows(p_info, item);
}
}
else
{
foreach (var item in p_item.Children)
{
var elem = (UIElement)Children[p_info.Index];
elem.Arrange(_rcEmpty);
p_info.Index++;
ArrangeChildRows(p_info, item);
}
}
}
void ArrangeRealRows(Size p_finalSize)
{
ArrangeInfo info = new ArrangeInfo();
info.FinalSize = p_finalSize;
foreach (var item in _owner.RootItems)
{
var elem = (UIElement)Children[info.Index];
elem.Arrange(new Rect(0, info.Top, p_finalSize.Width, elem.DesiredSize.Height));
info.Top += elem.DesiredSize.Height;
info.Index++;
ArrangeChildRows(info, item);
}
}