Disabled hover effect when too many rectangles

Author: armand

mprof.py

@@ -620,7 +620,9 @@ def mouse_click_handler(event):
                 pl.draw()
                 return
 
-    pl.gcf().canvas.mpl_connect('motion_notify_event', mouse_motion_handler)
+    # Disable hovering if there are too many rectangle to prevent slow down
+    if len(rectangles) < 100:
+        pl.gcf().canvas.mpl_connect('motion_notify_event', mouse_motion_handler)
     pl.gcf().canvas.mpl_connect('button_release_event', mouse_click_handler)
 
     if timestamps: