move iteration of deleting sets inside undo

src/gui_qt/lib/undos.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import copy
 
 from numpy import argsort
@@ -216,33 +218,55 @@ class DeleteGraphCommand(QtWidgets.QUndoCommand):
 
 
 class DeleteCommand(QtWidgets.QUndoCommand):
-    def __init__(self, container, key, signal1, signal2):
+    def __init__(self, container: dict, keys: list[str], graphs: dict, graphid: str,
+                 signal1: QtCore.pyqtSignal, signal2: QtCore.pyqtSignal):
         super().__init__('Delete data')
 
         self.__container = container
-        self.__value = self.__container[key]
-        self.__key = key
+        self.__graph_container = graphs
+        self.__graph_key = graphid
+        self.__value = {}
+        for k in keys:
+            self.__value[k] = self.__container[k]
+        self.__keys = tuple(keys)
         self.__signal_add = signal1
         self.__signal_remove = signal2
 
     def redo(self):
-        self.__signal_remove.emit(self.__key)
-        if isinstance(self.__value, FitContainer):
-            try:
-                self.__container[self.__value.fitted_key]._fits.remove(self.__key)
-            except KeyError:
-                pass
-        del self.__container[self.__key]
+        # stop graph from rescaling and updating legend
+        self.__graph_container[self.__graph_key].block(True)
+
+        for sid in self.__keys[::-1]:
+            val = self.__value[sid]
+            self.__signal_remove.emit(sid)
+
+            if isinstance(val, FitContainer):
+                try:
+                    self.__container[sid].fitted_key._fits.remove(sid)
+                except KeyError:
+                    pass
+
+            del self.__container[sid]
+
+        self.__graph_container[self.__graph_key].block(False)
 
     def undo(self):
-        self.__container[self.__key] = self.__value
-        if isinstance(self.__value, FitContainer):
-            try:
-                self.__container[self.__value.fitted_key]._fits.append(self.__key)
-            except KeyError:
-                pass
+        # stop graph from rescaling and updating legend
+        self.__graph_container[self.__graph_key].block(True)
 
-        self.__signal_add.emit([self.__key], self.__value.graph)
+        for sid in self.__keys:
+            val = self.__value[sid]
+            self.__container[sid] = val
+
+            if isinstance(val, FitContainer):
+                try:
+                    self.__container[val.fitted_key]._fits.append(sid)
+                except KeyError:
+                    pass
+
+            self.__signal_add.emit([sid], val.graph)
+
+        self.__graph_container[self.__graph_key].block(False)
 
 
 class EvalCommand(QtWidgets.QUndoCommand):

src/gui_qt/main/management.py

@@ -287,15 +287,26 @@ class UpperManagement(QtCore.QObject):
 
         self.undostack.beginMacro('Delete')
 
+        rm_set_by_graph = {}
+
         for k in rm_sets[::-1]:
             if k in self.data:
-                cmd = DeleteCommand(self.data, k, self.newData, self.deleteData)
-                self.undostack.push(cmd)
+                parent_graph = self.data[k].graph
+                if parent_graph not in rm_set_by_graph:
+                    rm_set_by_graph[parent_graph] = []
+
+                rm_set_by_graph[parent_graph].append(k)
+
             elif k in self.graphs:
                 rm_graphs.append(k)
+
             else:
                 logger.warning(f'delete_sets: {k} is not in data or graph found')
 
+        for gid, sid_list in rm_set_by_graph.items():
+            cmd = DeleteCommand(self.data, sid_list, self.graphs, gid, self.newData, self.deleteData)
+            self.undostack.push(cmd)
+
         for k in rm_graphs:
             cmd = DeleteGraphCommand(self.graphs, k, self.restoreGraph, self.deleteGraph)
             self.undostack.push(cmd)