public static void BringForward(this RectTransform rectTransform)
{
Transform currentParent = rectTransform.parent;
int currentIndex = rectTransform.GetSiblingIndex();
var rootObjects = UnityEngine.SceneManagement.SceneManager.GetActiveScene().GetRootGameObjects();
int siblingsCount = currentParent?.childCount ?? rootObjects.Length;
if (currentIndex < siblingsCount - 1)
{
int nextIndex = currentIndex + 1;
Transform nextSibling = currentParent != null
? currentParent.GetChild(nextIndex)
: rootObjects[nextIndex].transform;
bool isNextSibingExpanded = SceneHierarchyUtility.IsExpanded(nextSibling.gameObject);
if (nextSibling.childCount > 0 && isNextSibingExpanded)
{
Undo.SetTransformParent(rectTransform, nextSibling, nameof(BringForward));
rectTransform.SetParent(nextSibling);
rectTransform.SetAsFirstSibling();
EditorGUIUtility.PingObject(nextSibling);
}
else
{
Undo.SetTransformParent(rectTransform, currentParent, nameof(BringForward));
rectTransform.SetSiblingIndex(nextIndex);
}
}
else if (currentParent != null && currentParent.parent != null)
{
Transform newParent = currentParent.parent;
int newIndex = currentParent.GetSiblingIndex() + 1;
Undo.SetTransformParent(rectTransform, newParent, nameof(BringForward));
rectTransform.SetParent(newParent);
rectTransform.SetSiblingIndex(newIndex);
EditorGUIUtility.PingObject(newParent);
}
}
public static void SendBackward(this RectTransform rectTransform)
{
Transform currentParent = rectTransform.parent;
int currentIndex = rectTransform.GetSiblingIndex();
if (currentIndex > 0)
{
var rootObjects = UnityEngine.SceneManagement.SceneManager.GetActiveScene().GetRootGameObjects();
int previousIndex = currentIndex - 1;
Transform previousSibling = currentParent != null
? currentParent.GetChild(previousIndex)
: rootObjects[previousIndex].transform;
bool isPreviousSibingExpanded = SceneHierarchyUtility.IsExpanded(previousSibling.gameObject);
if (previousSibling.childCount > 0 && isPreviousSibingExpanded)
{
Undo.SetTransformParent(rectTransform, previousSibling, nameof(SendBackward));
rectTransform.SetParent(previousSibling);
rectTransform.SetAsLastSibling();
EditorGUIUtility.PingObject(previousSibling);
}
else
{
Undo.SetTransformParent(rectTransform, currentParent, nameof(SendBackward));
rectTransform.SetSiblingIndex(previousIndex);
}
}
else if (currentParent != null && currentParent.parent != null)
{
int currentParentIndex = currentParent.GetSiblingIndex();
Transform newParent = currentParent.parent;
Undo.SetTransformParent(rectTransform, newParent, nameof(SendBackward));
rectTransform.SetParent(newParent);
rectTransform.SetSiblingIndex(currentParentIndex);
EditorGUIUtility.PingObject(newParent);
}
}
