Fixed issue #2638: Show a window constructed with tkSimpleDialog.Dialog only
after it is has been populated and properly configured in order to prevent
window flashing.
diff --git a/Lib/lib-tk/tkSimpleDialog.py b/Lib/lib-tk/tkSimpleDialog.py
index 6948a49..8c583db 100644
--- a/Lib/lib-tk/tkSimpleDialog.py
+++ b/Lib/lib-tk/tkSimpleDialog.py
@@ -46,6 +46,7 @@
'''
Toplevel.__init__(self, parent)
+ self.withdraw() # remain invisible for now
# If the master is not viewable, don't
# make the child transient, or else it
# would be opened withdrawn
@@ -65,8 +66,6 @@
self.buttonbox()
- self.wait_visibility() # window needs to be visible for the grab
- self.grab_set()
if not self.initial_focus:
self.initial_focus = self
@@ -77,8 +76,13 @@
self.geometry("+%d+%d" % (parent.winfo_rootx()+50,
parent.winfo_rooty()+50))
+ self.deiconify() # become visibile now
+
self.initial_focus.focus_set()
+ # wait for window to appear on screen before calling grab_set
+ self.wait_visibility()
+ self.grab_set()
self.wait_window(self)
def destroy(self):