Fix an issue with zooming in PlotView on a Mac

- shift is not passed as a modifier if held while scrolling a mouse
ejeschke · Nov 12, 2024 · b394bcd · b394bcd
1 parent 3373608
commit b394bcd
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/ginga/gw/PlotView.py b/ginga/gw/PlotView.py
@@ -964,11 +964,13 @@ def plot_do_zoom(self, cb_obj, event):
         if 'ctrl' in event.modifiers:
             # only horizontal
             delta_y = 1.0
-        elif 'shift' in event.modifiers:
-            # only horizontal
+        elif 'shift' in event.modifiers or 'alt' in event.modifiers:
+            # only vertical
+            # (shift works on Linux, but not Mac; alt works on Mac but
+            #  not Linux....Grrr)
             delta_x = 1.0
 
-        if 'meta' in event.modifiers:
+        if 'meta' in event.modifiers or 'cmd' in event.modifiers:
             # cursor position
             cur_x, cur_y = event.data_x, event.data_y
             if None not in [cur_x, cur_y]: