Use enum.auto for Cursors enum.

QuLogic · QuLogic · commit ff1eaa441377 · 2021-07-07T21:53:14.000-04:00
diff --git a/lib/matplotlib/backend_tools.py b/lib/matplotlib/backend_tools.py
@@ -11,7 +11,7 @@
     `matplotlib.backend_managers.ToolManager`
 """
 
-from enum import IntEnum
+import enum
 import re
 import time
 from types import SimpleNamespace
@@ -25,9 +25,13 @@
 from matplotlib import cbook
 
 
-class Cursors(IntEnum):  # Must subclass int for the macOS backend.
+class Cursors(enum.IntEnum):  # Must subclass int for the macOS backend.
     """Backend-independent cursor types."""
-    HAND, POINTER, SELECT_REGION, MOVE, WAIT = range(5)
+    POINTER = enum.auto()
+    HAND = enum.auto()
+    SELECT_REGION = enum.auto()
+    MOVE = enum.auto()
+    WAIT = enum.auto()
 cursors = Cursors  # Backcompat.
 
 # Views positions tool
diff --git a/src/_macosx.m b/src/_macosx.m
@@ -1373,13 +1373,13 @@ -(void)save_figure:(id)sender
 {
     int i;
     if(!PyArg_ParseTuple(args, "i", &i)) return NULL;
-    switch (i)
-    { case 0: [[NSCursor pointingHandCursor] set]; break;
+    switch (i) {
       case 1: [[NSCursor arrowCursor] set]; break;
-      case 2: [[NSCursor crosshairCursor] set]; break;
-      case 3: [[NSCursor openHandCursor] set]; break;
+      case 2: [[NSCursor pointingHandCursor] set]; break;
+      case 3: [[NSCursor crosshairCursor] set]; break;
+      case 4: [[NSCursor openHandCursor] set]; break;
       /* OSX handles busy state itself so no need to set a cursor here */
-      case 4: break;
+      case 5: break;
       default: return NULL;
     }
     Py_RETURN_NONE;
