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Add scripts dragging support to scene tree for reparenting

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This commit is contained in:
Wojciech Figat
2022-11-04 12:49:46 +01:00
parent e38ab163c4
commit 996d38b61d
1 changed files with 45 additions and 0 deletions
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45
Source/Editor/SceneGraph/GUI/ActorTreeNode.cs
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@@ -23,6 +23,7 @@ namespace FlaxEditor.SceneGraph.GUI
{
private int _orderInParent;
private DragActors _dragActors;
private DragScripts _dragScripts;
private DragAssets _dragAssets;
private DragActorType _dragActorType;
private DragHandlers _dragHandlers;
@@ -349,6 +350,15 @@ namespace FlaxEditor.SceneGraph.GUI
if (_dragActors.OnDragEnter(data))
return _dragActors.Effect;
// Check if drop scripts
if (_dragScripts == null)
{
_dragScripts = new DragScripts(ValidateDragScript);
_dragHandlers.Add(_dragScripts);
}
if (_dragScripts.OnDragEnter(data))
return _dragScripts.Effect;
// Check if drag assets
if (_dragAssets == null)
{
@@ -436,6 +446,14 @@ namespace FlaxEditor.SceneGraph.GUI
}
}
public ReparentAction(Script script)
{
_actorsCount = 0;
_ids = new Guid[] { script.ID };
_prefabIds = new Guid[] { script.PrefabID };
_prefabObjectIds = new Guid[] { script.PrefabObjectID };
}
private void GetAllActors(List<Actor> allActors, Actor actor)
{
allActors.Add(actor);
@@ -577,6 +595,20 @@ namespace FlaxEditor.SceneGraph.GUI
result = DragDropEffect.Move;
}
// Drag scripts
else if (_dragScripts != null && _dragScripts.HasValidDrag)
{
foreach(var script in _dragScripts.Objects)
{
var customAction = script.HasPrefabLink ? new ReparentAction(script) : null;
using (new UndoBlock(ActorNode.Root.Undo, script, "Change script parent", customAction))
{
script.SetParent(newParent, true);
}
}
result = DragDropEffect.Move;
}
// Drag assets
else if (_dragAssets != null && _dragAssets.HasValidDrag)
{
@@ -642,6 +674,18 @@ namespace FlaxEditor.SceneGraph.GUI
return actorNode.Actor != null && actorNode != ActorNode && actorNode.Find(Actor) == null;
}
private bool ValidateDragScript(Script script)
{
// Reject dragging scripts not linked to scene (eg. from prefab) or in the opposite way
var thisHasScene = Actor.Scene != null;
var otherHasScene = script.Scene != null;
if (thisHasScene != otherHasScene)
return false;
// Reject dragging parents and itself
return script.Actor != null && script.Parent != Actor;
}
private bool ValidateDragAsset(AssetItem assetItem)
{
return assetItem.OnEditorDrag(this);
@@ -684,6 +728,7 @@ namespace FlaxEditor.SceneGraph.GUI
public override void OnDestroy()
{
_dragActors = null;
_dragScripts = null;
_dragAssets = null;
_dragActorType = null;
_dragHandlers?.Clear();