Issue #25313: Change the handling of new built-in text color themes to better

address the compatibility problem introduced by the addition of IDLE Dark.
Consistently use the revised idleConf.CurrentTheme everywhere in idlelib.

1 files changed, 13 insertions, 16 deletions

diff --git a/Lib/idlelib/configDialog.py b/Lib/idlelib/configDialog.py
index f5388178e0..9b16459d54 100644
--- a/Lib/idlelib/configDialog.py
+++ b/Lib/idlelib/configDialog.py
@@ -263,6 +263,7 @@ class ConfigDialog(Toplevel):
         self.buttonDeleteCustomTheme=Button(
                 frameTheme, text='Delete Custom Theme',
                 command=self.DeleteCustomTheme)
+        self.new_custom_theme = Label(frameTheme, bd=2)
 
         ##widget packing
         #body
@@ -286,6 +287,7 @@ class ConfigDialog(Toplevel):
         self.optMenuThemeBuiltin.pack(side=TOP, fill=X, padx=5, pady=5)
         self.optMenuThemeCustom.pack(side=TOP, fill=X, anchor=W, padx=5, pady=5)
         self.buttonDeleteCustomTheme.pack(side=TOP, fill=X, padx=5, pady=5)
+        self.new_custom_theme.pack(side=TOP, fill=X, pady=5)
         return frame
 
     def CreatePageKeys(self):
@@ -503,20 +505,15 @@ class ConfigDialog(Toplevel):
     def VarChanged_builtinTheme(self, *params):
         value = self.builtinTheme.get()
         if value == 'IDLE Dark':
-            tkMessageBox.showwarning(
-                title="The 'IDLE Dark' Text Color Theme",
-                message="IDLE Dark is new in October, 2015.  Trying to "
-                        "run earlier versions of IDLE with it selected "
-                        "will disable colorizing, or worse.\n\n"
-                        "If you might ever run an earlier release of IDLE, "
-                        "then before exiting this version, "
-                        "either switch to another theme or "
-                        "hit the 'Save as New Custom Theme' button.  "
-                        "The latter requires a new name, such as "
-                        "'Custom Dark', but the custom theme will work "
-                        "with any IDLE release, and can be modified.",
-                parent=self)
-        self.AddChangedItem('main', 'Theme', 'name', value)
+            if idleConf.GetOption('main', 'Theme', 'name') != 'IDLE New':
+                self.AddChangedItem('main', 'Theme', 'name', 'IDLE Classic')
+            self.AddChangedItem('main', 'Theme', 'name2', value)
+            self.new_custom_theme.config(text='New theme, see Help',
+                                         fg='#500000')
+        else:
+            self.AddChangedItem('main', 'Theme', 'name', value)
+            self.AddChangedItem('main', 'Theme', 'name2', '')
+            self.new_custom_theme.config(text='', fg='black')
         self.PaintThemeSample()
 
     def VarChanged_customTheme(self, *params):
@@ -1350,14 +1347,14 @@ help_common = '''\
 When you click either the Apply or Ok buttons, settings in this
 dialog that are different from IDLE's default are saved in
 a .idlerc directory in your home directory. Except as noted,
-hese changes apply to all versions of IDLE installed on this
+these changes apply to all versions of IDLE installed on this
 machine. Some do not take affect until IDLE is restarted.
 [Cancel] only cancels changes made since the last save.
 '''
 help_pages = {
     'Highlighting':'''
 Highlighting:
-The IDLE Dark color theme is new in Octover 2015.  It can only
+The IDLE Dark color theme is new in October 2015.  It can only
 be used with older IDLE releases if it is saved as a custom
 theme, with a different name.
 '''