|
static private GetDragAndDropObjects ( int draggedInstanceID, List |
||
| draggedInstanceID | int | |
| selectedInstanceIDs | List |
|
| return | Object[] | |
public override void StartDrag(TreeViewItem draggedItem, List <int> draggedItemIDs)
{
DragAndDrop.PrepareStartDrag();
if ((Event.current.control || Event.current.command) && !draggedItemIDs.Contains(draggedItem.id))
{
draggedItemIDs.Add(draggedItem.id);
}
// Ensure correct order for hierarchy items (to preserve visible order when dropping at new location)
draggedItemIDs = m_TreeView.SortIDsInVisiblityOrder(draggedItemIDs);
if (!draggedItemIDs.Contains(draggedItem.id))
{
draggedItemIDs = new List <int> {
draggedItem.id
}
}
;
Object[] draggedObjReferences = ProjectWindowUtil.GetDragAndDropObjects(draggedItem.id, draggedItemIDs);
DragAndDrop.objectReferences = draggedObjReferences;
// After introducing multi-scene, UnityEngine.Scene can be selected in HierarchyWindow.
// UnityEngine.Scene is not a UnityEngine.Object.
// So DragAndDrop.objectReferences can't cover this case.
List <Scene> draggedScenes = GetDraggedScenes(draggedItemIDs);
if (draggedScenes != null)
{
DragAndDrop.SetGenericData(kSceneHeaderDragString, draggedScenes);
List <string> paths = new List <string>();
foreach (Scene scene in draggedScenes)
{
if (scene.path.Length > 0)
{
paths.Add(scene.path);
}
}
DragAndDrop.paths = paths.ToArray();
}
string title;
if (draggedItemIDs.Count > 1)
{
title = "<Multiple>";
}
else
{
if (draggedObjReferences.Length == 1)
{
title = ObjectNames.GetDragAndDropTitle(draggedObjReferences[0]);
}
else if (draggedScenes != null && draggedScenes.Count == 1)
{
title = draggedScenes[0].path;
}
else
{
title = "Unhandled dragged item";
Debug.LogError("Unhandled dragged item");
}
}
DragAndDrop.StartDrag(title);
dataSource.SetupChildParentReferencesIfNeeded();
}
GameObjectTreeViewDataSource dataSource {
get { return((GameObjectTreeViewDataSource)m_TreeView.data); }
}
