removed unused preserve_states

openpype/tools/utils/lib.py

@@ -79,76 +79,6 @@ def iter_model_rows(model, column, include_root=False):
         yield index
 
 
-@contextlib.contextmanager
-def preserve_states(tree_view,
-                    column=0,
-                    role=None,
-                    preserve_expanded=True,
-                    preserve_selection=True,
-                    expanded_role=QtCore.Qt.DisplayRole,
-                    selection_role=QtCore.Qt.DisplayRole):
-    """Preserves row selection in QTreeView by column's data role.
-    This function is created to maintain the selection status of
-    the model items. When refresh is triggered the items which are expanded
-    will stay expanded and vise versa.
-        tree_view (QWidgets.QTreeView): the tree view nested in the application
-        column (int): the column to retrieve the data from
-        role (int): the role which dictates what will be returned
-    Returns:
-        None
-    """
-    # When `role` is set then override both expanded and selection roles
-    if role:
-        expanded_role = role
-        selection_role = role
-
-    model = tree_view.model()
-    selection_model = tree_view.selectionModel()
-    flags = selection_model.Select | selection_model.Rows
-
-    expanded = set()
-
-    if preserve_expanded:
-        for index in iter_model_rows(
-            model, column=column, include_root=False
-        ):
-            if tree_view.isExpanded(index):
-                value = index.data(expanded_role)
-                expanded.add(value)
-
-    selected = None
-
-    if preserve_selection:
-        selected_rows = selection_model.selectedRows()
-        if selected_rows:
-            selected = set(row.data(selection_role) for row in selected_rows)
-
-    try:
-        yield
-    finally:
-        if expanded:
-            for index in iter_model_rows(
-                model, column=0, include_root=False
-            ):
-                value = index.data(expanded_role)
-                is_expanded = value in expanded
-                # skip if new index was created meanwhile
-                if is_expanded is None:
-                    continue
-                tree_view.setExpanded(index, is_expanded)
-
-        if selected:
-            # Go through all indices, select the ones with similar data
-            for index in iter_model_rows(
-                model, column=column, include_root=False
-            ):
-                value = index.data(selection_role)
-                state = value in selected
-                if state:
-                    tree_view.scrollTo(index)  # Ensure item is visible
-                    selection_model.select(index, flags)
-
-
 @contextlib.contextmanager
 def preserve_expanded_rows(tree_view, column=0, role=None):
     """Preserves expanded row in QTreeView by column's data role.