internal static bool AddChildItem(this HierarchyItem self, HierarchyItem item)
{
int index;
if (self.FindSiblingIndex(item, out index))
{
// The transform is already in the array?
return(false);
}
var currentLoopCount = HierarchyItem.CurrentLoopCount;
if (item.LastLoopCount != currentLoopCount)
{
item.CachedTransformSiblingIndex = item.Transform.GetSiblingIndex();
item.LastLoopCount = currentLoopCount;
}
if (self.FindSiblingIndex(item.Transform, item.CachedTransformSiblingIndex, item.TransformID, out index))
{
return(false);
}
// make sure item is added in the correct position within the array
UnityEditor.ArrayUtility.Insert(ref self.ChildNodes, index, item);
item.SiblingIndex = index;
/*
* bool childrenModified = false;
* for (int i = index + 1; i < ChildNodes.Length; i++)
* {
* if (ChildNodes[i].SiblingIndex != i)
* {
* ChildNodes[i].SiblingIndex = i;
* childrenModified = true;
* }
* }
* if (childrenModified)*/
{
var parentData = self as ParentNodeData;
if (parentData != null)
{
parentData.ChildrenModified = true;
}
}
Debug.Assert(self.ChildNodes[index] == item);
return(true);
}
internal static bool RemoveChildItem(this HierarchyItem self, HierarchyItem item)
{
int index;
if (!self.FindSiblingIndex(item, out index))
{
// The transform is not in the array?
return(false);
}
// make sure item is removed from the array
UnityEditor.ArrayUtility.RemoveAt(ref self.ChildNodes, index);
//item.siblingIndex = -1;
return(true);
}
// returns true on success
internal static bool AddNode(HierarchyItem node, ParentNodeData top)
{
if (node.Parent != null)
{
//Debug.Log("node.parent != null");
return(false);
}
if (!top.Transform)
{
// var top_transform_name = (top.transform == null) ? "null" : top.transform.name;
// var node_transform_name = (node.transform == null) ? "null" : node.transform.name;
// Debug.Log("!top.transform (top.transform=" + top_transform_name + ", node.transform = " + node_transform_name + ")", node.transform);
return(false);
}
var ancestors = new List <Transform>();
var leafTransform = node.Transform;
if (leafTransform == null)
{
//Debug.Log("node.transform == null");
return(false);
}
var iterator = leafTransform.parent;
while (iterator != null &&
iterator != top.Transform)
{
ancestors.Add(iterator);
iterator = iterator.parent;
}
var defaultModel = InternalCSGModelManager.GetDefaultCSGModelForObject(iterator);
if (!defaultModel)
{
return(false);
}
var defaultModelTransform = defaultModel.transform;
if (iterator == null || top.Transform == null ||
top.Transform == defaultModelTransform)
{
iterator = defaultModelTransform;
}
if (iterator == null)
{
node.Reset();
top.Reset();
//Debug.Log("iterator == null");
return(false);
}
if (iterator != top.Transform)
{
//Debug.Log("iterator != top.transform");
return(false);
}
// var currentLoopCount = CurrentLoopCount;
HierarchyItem lastParent = top;
var ancestorDepth = ancestors.Count - 1;
while (ancestorDepth >= 0)
{
var ancestor = ancestors[ancestorDepth];
int childIndex;
if (!lastParent.FindSiblingIndex(ancestor, ancestor.GetSiblingIndex(), ancestor.GetInstanceID(), out childIndex))
{
break;
}
lastParent = lastParent.ChildNodes[childIndex];
ancestorDepth--;
}
while (ancestorDepth >= 0)
{
var newAncestor = new HierarchyItem();
newAncestor.Transform = ancestors[ancestorDepth];
newAncestor.TransformID = newAncestor.Transform.GetInstanceID();
newAncestor.Parent = lastParent;
if (!lastParent.AddChildItem(newAncestor))
{
return(false);
}
lastParent = newAncestor;
ancestorDepth--;
}
node.Parent = lastParent;
top.ChildrenModified = true;
return(lastParent.AddChildItem(node));
}
// returns true on success
internal static bool AddNode(HierarchyItem node, ParentNodeData top)
{
if (node.Parent != null)
{
return(false);
}
if (!top.Transform)
{
return(false);
}
var ancestors = new List <Transform>();
var leafTransform = node.Transform;
if (leafTransform == null)
{
return(false);
}
var iterator = leafTransform.parent;
while (iterator != null &&
iterator != top.Transform)
{
ancestors.Add(iterator);
iterator = iterator.parent;
}
var defaultModel = InternalCSGModelManager.GetDefaultCSGModelForObject(iterator);
if (!defaultModel)
{
return(false);
}
var defaultModelTransform = defaultModel.transform;
if (iterator == null || top.Transform == null ||
top.Transform == defaultModelTransform)
{
iterator = defaultModelTransform;
}
if (iterator == null)
{
node.Reset();
top.Reset();
return(false);
}
#if !UNITY_2018_3_OR_NEWER
// TODO: figure out how to check this, yet still support prefab isolation mode
if (iterator != top.Transform)
{
return(false);
}
#endif
//var currentLoopCount = CurrentLoopCount;
HierarchyItem lastParent = top;
var ancestorDepth = ancestors.Count - 1;
while (ancestorDepth >= 0)
{
var ancestor = ancestors[ancestorDepth];
int childIndex;
if (!lastParent.FindSiblingIndex(ancestor, ancestor.GetSiblingIndex(), ancestor.GetInstanceID(), out childIndex))
{
break;
}
lastParent = lastParent.ChildNodes[childIndex];
ancestorDepth--;
}
while (ancestorDepth >= 0)
{
var newAncestor = new HierarchyItem();
newAncestor.Transform = ancestors[ancestorDepth];
newAncestor.TransformID = newAncestor.Transform.GetInstanceID();
newAncestor.Parent = lastParent;
if (!lastParent.AddChildItem(newAncestor))
{
return(false);
}
lastParent = newAncestor;
ancestorDepth--;
}
node.Parent = lastParent;
top.ChildrenModified = true;
return(lastParent.AddChildItem(node));
}