Checkpoint in getting the Preferences dialog functional. There's still some tweaking left to do.

curses/curses_misc.py: Changed the internal layout of the widgets to allow me to stick buttons on the bottom.
curses/prefs_curses.py: Added rudimentary Dbus support to the dialog.
Started getting the config settings to save to wicd.
Added buttons (which don't do anything yet).
The PrefOverlay has been renamed to PrefsDialog.  The PrefsDialog widget is wrapped around a TabColumns widget.
Added a main entry point into the file to allow for somewhat easier testing.  It can now be called indepentently of wicd-curses, if needed.
curses/wicd-curses.py: Undid a change that caused the ESC key to disconnect from the current network, in addition to its current function.

curses/curses_misc.py

@@ -79,8 +79,9 @@ class TabColumns(urwid.WidgetWrap):
     attr = normal attributes
     attrsel = attribute when active
     """
-    def __init__(self,tab_str,tab_wid,title,attr=('body','focus'),attrsel='tab active',
-            attrtitle='header'):
+    def __init__(self,tab_str,tab_wid,title,bottom_part,attr=('body','focus'),
+            attrsel='tab active', attrtitle='header'):
+        self.bottom_part = bottom_part
         #title_wid = urwid.Text((attrtitle,title),align='right')
         column_list = []
         for w in tab_str:
@@ -91,23 +92,38 @@ class TabColumns(urwid.WidgetWrap):
         self.tab_map = dict(zip(tab_str,tab_wid))
         self.active_tab = tab_str[0]
         self.columns = urwid.Columns(column_list,dividechars=1)
-        walker   = urwid.SimpleListWalker([self.columns,tab_wid[0]])
-        self.listbox = urwid.ListBox(walker)
-        self.__super.__init__(self.listbox)
+        #walker   = urwid.SimpleListWalker([self.columns,tab_wid[0]])
+        #self.listbox = urwid.ListBox(walker)
+        self.gen_pile(tab_wid[0],True)
+        self.frame = urwid.Frame(self.pile)
+        self.__super.__init__(self.frame)
         
+    # Make the pile in the middle
+    def gen_pile(self,lbox,firstrun=False):
+        self.pile = urwid.Pile([
+            ('fixed',1,urwid.Filler(self.columns,'top')),
+            urwid.Filler(lbox,'top',height=('relative',99)),
+            ('fixed',1,urwid.Filler(self.bottom_part,'bottom'))
+            ])
+        if not firstrun:
+            self.frame.set_body(self.pile)
+            self.set_w(self.frame)
+
     def selectable(self):
         return True
+
     def keypress(self,size,key):
         self._w.keypress(size,key)
-        (wid,pos) = self.listbox.get_focus()
-        if wid is self.columns:
-            lw = self.listbox.body
-            lw.pop(1)
+        wid = self.pile.get_focus().get_body()
+        if wid == self.columns:
+        #    lw = self.listbox.body
+        #    lw.pop(1)
             self.active_tab.set_attr('body')
             self.columns.get_focus().set_attr('tab active')
             self.active_tab = self.columns.get_focus()
-            lw.append(self.tab_map[self.columns.get_focus()])
-            self.listbox.body = lw
+            self.gen_pile(self.tab_map[self.active_tab])
+        return key
+        #    self.listbox.body = lw
 
 # A "combo box" of SelTexts
 # I based this off of the code found here:
@@ -182,7 +198,8 @@ class ComboText(urwid.WidgetWrap):
         self.label = urwid.Text(label)
         str,trash =  self.label.get_text()
 
-        self.cbox  = urwid.AttrWrap(SelText([list[show_first]+'    vvv']),attr[0],attr[1])
+        self.cbox  = urwid.AttrWrap(SelText([list[show_first]+'    vvv']),
+                attr[0],attr[1])
         # Unicode will kill me sooner or later.  ^_^
         if label != '':
             w = urwid.Columns([('fixed',len(str),self.label),self.cbox],dividechars=1)