Mention keyboard modifiers in toolbar tooltip texts.

anntzer · anntzer · commit 7249f2504e9c · 2020-06-19T11:52:58.000+02:00
Otherwise the feature is a bit obscure...
diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
@@ -2818,8 +2818,12 @@ class NavigationToolbar2:
         ('Back', 'Back to previous view', 'back', 'back'),
         ('Forward', 'Forward to next view', 'forward', 'forward'),
         (None, None, None, None),
-        ('Pan', 'Pan axes with left mouse, zoom with right', 'move', 'pan'),
-        ('Zoom', 'Zoom to rectangle', 'zoom_to_rect', 'zoom'),
+        ('Pan',
+         'Left button pans, Right button zooms\n'
+         'x/y fixes axis, CTRL fixes aspect',
+         'move', 'pan'),
+        ('Zoom', 'Zoom to rectangle\nx/y fixes axis, CTRL fixes aspect',
+         'zoom_to_rect', 'zoom'),
         ('Subplots', 'Configure subplots', 'subplots', 'configure_subplots'),
         (None, None, None, None),
         ('Save', 'Save the figure', 'filesave', 'save_figure'),
