Patch #485959: Various changes to Tix demos.

Demo/tix/samples/DirTree.py

@@ -5,7 +5,7 @@
 # Tix Demostration Program
 #
 # This sample program is structured in such a way so that it can be
-# executed from the Tix demo program "widget": it must have a
+# executed from the Tix demo program "tixwidgets.py":  it must have a
 # procedure called "RunSample". It should also have the "if" statment
 # at the end of this file so that it can be run as a standalone
 # program using tixwish.
@@ -19,16 +19,21 @@
 import Tix, os, copy
 from Tkconstants import *
 
-def RunSample (w):
-    DemoDirTree(w)
+TCL_ALL_EVENTS		= 0
+
+def RunSample (root):
+    dirtree = DemoDirTree(root)
+    dirtree.mainloop()
+    dirtree.destroy()
 
 class DemoDirTree:
     def __init__(self, w):
         self.root = w
+        self.exit = -1
         
         z = w.winfo_toplevel()
-        z.wm_title('Tix.DirTree Widget Demo')
-        
+        z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())
+
         # Create the tixDirTree and the tixLabelEntry widgets on the on the top
         # of the dialog box
 
@@ -90,19 +95,24 @@ def copy_name (self, dir, ent):
         ent.entry.insert(0, self.dlist_dir)
 
     def okcmd (self):
-        # tixDemo:Status "You have selected the directory" + $self.dlist_dir
-
+        # tixDemo:Status "You have selected the directory" + self.dlist_dir
         self.quitcmd()
 
     def quitcmd (self):
+        # tixDemo:Status "You have selected the directory" + self.dlist_dir
+        self.exit = 0
+
+    def mainloop(self):
+        while self.exit < 0:
+            self.root.tk.dooneevent(TCL_ALL_EVENTS)
+
+    def destroy (self):
         self.root.destroy()
 
 # This "if" statement makes it possible to run this script file inside or
-# outside of the main demo program "widget".
+# outside of the main demo program "tixwidgets.py".
 #
 if __name__== '__main__' :
     root=Tix.Tk()
     RunSample(root)
-    root.mainloop()
-    root.destroy()