protected virtual void OnParentChanged(ExposeToEditor obj, ExposeToEditor oldParent, ExposeToEditor newParent)
{
if (Editor.IsPlaymodeStateChanging)
{
return;
}
if (!IsFilterEmpty)
{
return;
}
bool isNewParentExpanded = true;
bool isOldParentExpanded = true;
bool isLastChild = false;
if (newParent != null)
{
isNewParentExpanded = m_treeView.IsExpanded(newParent);
}
if (oldParent != null)
{
TreeViewItemContainerData itemContainerData = (TreeViewItemContainerData)m_treeView.GetItemContainerData(oldParent);
isLastChild = !oldParent.HasChildren(); //!itemContainerData.HasChildren(m_treeView);
isOldParentExpanded = m_treeView.IsExpanded(oldParent);
}
if (isNewParentExpanded)
{
m_treeView.ChangeParent(newParent, obj);
if (!isOldParentExpanded)
{
if (isLastChild)
{
VirtualizingTreeViewItem oldParentContainer = m_treeView.GetTreeViewItem(oldParent);
if (oldParentContainer)
{
oldParentContainer.CanExpand = false;
}
}
}
}
else
{
if (newParent != null)
{
VirtualizingTreeViewItem newParentTreeViewItem = m_treeView.GetTreeViewItem(newParent);
if (newParentTreeViewItem != null)
{
newParentTreeViewItem.CanExpand = true;
}
}
m_treeView.RemoveChild(oldParent, obj);
}
}
protected virtual void OnItemExpanding(object sender, VirtualizingItemExpandingArgs e)
{
ExposeToEditor exposeToEditor = (ExposeToEditor)e.Item;
if (exposeToEditor.HasChildren())
{
e.Children = exposeToEditor.GetChildren().Where(obj => !obj.MarkAsDestroyed);
//This line is required to syncronize selection, runtime selection and treeview selection
OnTreeViewSelectionChanged(m_treeView.SelectedItems, m_treeView.SelectedItems);
}
else
{
e.Children = new ExposeToEditor[0];
}
}
protected virtual void Expand(ExposeToEditor item)
{
if (item == null)
{
return;
}
ExposeToEditor parent = item.GetParent();
if (parent != null && !m_treeView.IsExpanded(parent))
{
Expand(parent);
}
if (item.HasChildren())
{
m_treeView.Expand(item);
}
}
protected virtual void OnItemDataBinding(object sender, VirtualizingTreeViewItemDataBindingArgs e)
{
ExposeToEditor dataItem = (ExposeToEditor)e.Item;
if (dataItem != null)
{
TextMeshProUGUI text = e.ItemPresenter.GetComponentInChildren <TextMeshProUGUI>(true);
text.text = dataItem.name;
if (dataItem.gameObject.activeInHierarchy)
{
text.color = m_hierarchyView.EnabledItemColor;
}
else
{
text.color = m_hierarchyView.DisabledItemColor;
}
e.HasChildren = dataItem.HasChildren();
}
}