void CreateSceneHeaderItems()
{
m_StickySceneHeaderItems.Clear();
int numScenesInHierarchy = EditorSceneManager.sceneCount;
if (SubSceneGUI.IsUsingSubScenes())
{
for (int i = 0; i < numScenesInHierarchy; ++i)
{
Scene scene = SceneManager.GetSceneAt(i);
var subSceneInfo = SubSceneGUI.GetSubSceneInfo(scene);
if (subSceneInfo.isValid)
{
var item = new GameObjectTreeViewItem(0, 0, null, null);
var transform = subSceneInfo.transform;
GameObject gameObject = transform.gameObject;
int depth = SubSceneGUI.CalculateHierarchyDepthOfSubScene(subSceneInfo);
InitTreeViewItem(item, gameObject.GetInstanceID(), subSceneInfo.scene, false, 0, gameObject, false, depth);
m_StickySceneHeaderItems.Add(item);
}
else
{
var item = new GameObjectTreeViewItem(0, 0, null, null);
InitTreeViewItem(item, scene.handle, scene, true, 0, null, false, 0);
m_StickySceneHeaderItems.Add(item);
}
}
}
else
{
for (int i = 0; i < numScenesInHierarchy; ++i)
{
Scene scene = SceneManager.GetSceneAt(i);
var item = new GameObjectTreeViewItem(0, 0, null, null);
InitTreeViewItem(item, scene.handle, scene, true, 0, null, false, 0);
m_StickySceneHeaderItems.Add(item);
}
}
}