Whitespace normalization, via reindent.py.

15 files changed, 344 insertions, 350 deletions

diff --git a/Demo/tix/samples/Balloon.py b/Demo/tix/samples/Balloon.py
index 825ae6a..2295905 100755
--- a/Demo/tix/samples/Balloon.py
+++ b/Demo/tix/samples/Balloon.py
@@ -17,7 +17,7 @@
 
 import Tix
 
-TCL_ALL_EVENTS		= 0
+TCL_ALL_EVENTS          = 0
 
 def RunSample (root):
     balloon = DemoBalloon(root)
diff --git a/Demo/tix/samples/BtnBox.py b/Demo/tix/samples/BtnBox.py
index 57d02df..af2a2a8 100755
--- a/Demo/tix/samples/BtnBox.py
+++ b/Demo/tix/samples/BtnBox.py
@@ -1,5 +1,5 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
-# 
+#
 # $Id$
 #
 # Tix Demostration Program
@@ -21,7 +21,7 @@ def RunSample(w):
     # Create the label on the top of the dialog box
     #
     top = Tix.Label(w, padx=20, pady=10, bd=1, relief=Tix.RAISED,
-		    anchor=Tix.CENTER, text='This dialog box is\n a demonstration of the\n tixButtonBox widget')
+                    anchor=Tix.CENTER, text='This dialog box is\n a demonstration of the\n tixButtonBox widget')
 
     # Create the button box and add a few buttons in it. Set the
     # -width of all the buttons to the same value so that they
@@ -32,9 +32,9 @@ def RunSample(w):
     #
     box = Tix.ButtonBox(w, orientation=Tix.HORIZONTAL)
     box.add('ok', text='OK', underline=0, width=5,
-	    command=lambda w=w: w.destroy())
+            command=lambda w=w: w.destroy())
     box.add('close', text='Cancel', underline=0, width=5,
-	    command=lambda w=w: w.destroy())
+            command=lambda w=w: w.destroy())
     box.pack(side=Tix.BOTTOM, fill=Tix.X)
     top.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)
 
diff --git a/Demo/tix/samples/CmpImg.py b/Demo/tix/samples/CmpImg.py
index 4e08df7..4720a10 100755
--- a/Demo/tix/samples/CmpImg.py
+++ b/Demo/tix/samples/CmpImg.py
@@ -1,5 +1,5 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
-# 
+#
 # $Id$
 #
 # Tix Demostration Program
@@ -22,13 +22,13 @@ static char * netw_xpm[] = {
 /* width height ncolors chars_per_pixel */
 "32 32 7 1",
 /* colors */
-" 	s None	c None",
-".	c #000000000000",
-"X	c white",
-"o	c #c000c000c000",
-"O	c #404040",
-"+	c blue",
-"@	c red",
+"       s None  c None",
+".      c #000000000000",
+"X      c white",
+"o      c #c000c000c000",
+"O      c #404040",
+"+      c blue",
+"@      c red",
 /* pixels */
 "                                ",
 "                 .............. ",
@@ -69,11 +69,11 @@ static char * drivea_xpm[] = {
 /* width height ncolors chars_per_pixel */
 "32 32 5 1",
 /* colors */
-" 	s None	c None",
-".	c #000000000000",
-"X	c white",
-"o	c #c000c000c000",
-"O	c #800080008000",
+"       s None  c None",
+".      c #000000000000",
+"X      c white",
+"o      c #c000c000c000",
+"O      c #800080008000",
 /* pixels */
 "                                ",
 "                                ",
@@ -146,10 +146,10 @@ static unsigned char drivea_bits[] = {
 def RunSample(w):
     w.img0 = Tix.Image('pixmap', data=network_pixmap)
     if not w.img0:
-	w.img0 = Tix.Image('bitmap', data=network_bitmap)
+        w.img0 = Tix.Image('bitmap', data=network_bitmap)
     w.img1 = Tix.Image('pixmap', data=hard_disk_pixmap)
     if not w.img0:
-	w.img1 = Tix.Image('bitmap', data=hard_disk_bitmap)
+        w.img1 = Tix.Image('bitmap', data=hard_disk_bitmap)
 
     hdd = Tix.Button(w, padx=4, pady=1, width=120)
     net = Tix.Button(w, padx=4, pady=1, width=120)
@@ -163,7 +163,7 @@ def RunSample(w):
     w.hdd_img = Tix.Image('compound', window=hdd)
     w.hdd_img.tk.call(str(w.hdd_img), 'add', 'line')
     w.hdd_img.tk.call(str(w.hdd_img), 'add', 'text', '-text', 'Hard Disk',
-		    '-underline', '0')
+                    '-underline', '0')
     w.hdd_img.tk.call(str(w.hdd_img), 'add', 'space', '-width', '7')
     w.hdd_img.tk.call(str(w.hdd_img), 'add', 'image', '-image', w.img1)
 
@@ -175,7 +175,7 @@ def RunSample(w):
     w.net_img = Tix.Image('compound', window=net)
     w.net_img.tk.call(str(w.net_img), 'add', 'line')
     w.net_img.tk.call(str(w.net_img), 'add', 'text', '-text', 'Network',
-		    '-underline', '0')
+                    '-underline', '0')
     w.net_img.tk.call(str(w.net_img), 'add', 'space', '-width', '7')
     w.net_img.tk.call(str(w.net_img), 'add', 'image', '-image', w.img0)
 
@@ -184,7 +184,7 @@ def RunSample(w):
     net['image'] = w.net_img
 
     close = Tix.Button(w, pady=1, text='Close',
-		       command=lambda w=w: w.destroy())
+                       command=lambda w=w: w.destroy())
 
     hdd.pack(side=Tix.LEFT, padx=10, pady=10, fill=Tix.Y, expand=1)
     net.pack(side=Tix.LEFT, padx=10, pady=10, fill=Tix.Y, expand=1)
@@ -194,4 +194,3 @@ if __name__ == '__main__':
     root = Tix.Tk()
     RunSample(root)
     root.mainloop()
- 
diff --git a/Demo/tix/samples/ComboBox.py b/Demo/tix/samples/ComboBox.py
index afecea4..9140987 100755
--- a/Demo/tix/samples/ComboBox.py
+++ b/Demo/tix/samples/ComboBox.py
@@ -1,5 +1,5 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
-# 
+#
 # $Id$
 #
 # Tix Demostration Program
@@ -27,25 +27,25 @@ def RunSample(w):
     # to invent new months?
     #
     # [Hint] The -options switch sets the options of the subwidgets.
-    # [Hint] We set the label.width subwidget option of both comboboxes to 
+    # [Hint] We set the label.width subwidget option of both comboboxes to
     #        be 10 so that their labels appear to be aligned.
     #
     a = Tix.ComboBox(top, label="Month: ", dropdown=1,
-	command=select_month, editable=0, variable=demo_month,
-	options='listbox.height 6 label.width 10 label.anchor e')
+        command=select_month, editable=0, variable=demo_month,
+        options='listbox.height 6 label.width 10 label.anchor e')
 
     # $w.top.b is a non-drop-down combo box. It is not editable: we provide
     # four choices for the user, but he can enter an alternative year if he
     # wants to.
     #
     # [Hint] Use the padY and anchor options of the label subwidget to
-    #	     align the label with the entry subwidget.
+    #        align the label with the entry subwidget.
     # [Hint] Notice that you should use padY (the NAME of the option) and not
     #        pady (the SWITCH of the option).
     #
     b = Tix.ComboBox(top, label="Year: ", dropdown=0,
-	command=select_year, editable=1, variable=demo_year,
-	options='listbox.height 4 label.padY 5 label.width 10 label.anchor ne')
+        command=select_year, editable=1, variable=demo_year,
+        options='listbox.height 4 label.padY 5 label.width 10 label.anchor ne')
 
     a.pack(side=Tix.TOP, anchor=Tix.W)
     b.pack(side=Tix.TOP, anchor=Tix.W)
@@ -70,7 +70,7 @@ def RunSample(w):
     b.insert(Tix.END, '1996')
 
     # Use "tixSetSilent" to set the values of the combo box if you
-    # don't want your -command procedures (cbx:select_month and 
+    # don't want your -command procedures (cbx:select_month and
     # cbx:select_year) to be called.
     #
     a.set_silent('January')
@@ -78,9 +78,9 @@ def RunSample(w):
 
     box = Tix.ButtonBox(w, orientation=Tix.HORIZONTAL)
     box.add('ok', text='Ok', underline=0, width=6,
-	    command=lambda w=w: ok_command(w))
+            command=lambda w=w: ok_command(w))
     box.add('cancel', text='Cancel', underline=0, width=6,
-	    command=lambda w=w: w.destroy())
+            command=lambda w=w: w.destroy())
     box.pack(side=Tix.BOTTOM, fill=Tix.X)
     top.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)
 
diff --git a/Demo/tix/samples/Control.py b/Demo/tix/samples/Control.py
index e85ee84..3a344c1 100755
--- a/Demo/tix/samples/Control.py
+++ b/Demo/tix/samples/Control.py
@@ -20,7 +20,7 @@
 
 import Tix
 
-TCL_ALL_EVENTS		= 0
+TCL_ALL_EVENTS          = 0
 
 def RunSample (root):
     control = DemoControl(root)
@@ -46,7 +46,7 @@ class DemoControl:
         # $w.top.a allows only integer values
         #
         # [Hint] The -options switch sets the options of the subwidgets.
-        # [Hint] We set the label.width subwidget option of the Controls to 
+        # [Hint] We set the label.width subwidget option of the Controls to
         #        be 16 so that their labels appear to be aligned.
         #
         a = Tix.Control(top, label='Number of Engines: ', integer=1,
@@ -83,7 +83,7 @@ class DemoControl:
     def okcmd (self):
         # tixDemo:Status "Selected %d of %s engines each of thrust %d", (demo_num_engines.get(), demo_maker.get(), demo_thrust.get())
         self.quitcmd()
-        
+
     def quitcmd (self):
         self.exit = 0
 
@@ -100,9 +100,9 @@ def adjust_maker(w, inc):
     i = maker_list.index(demo_maker.get())
     i = i + inc
     if i >= len(maker_list):
-	i = 0
+        i = 0
     elif i < 0:
-	i = len(maker_list) - 1
+        i = len(maker_list) - 1
 
     # In Tcl/Tix we should return the string maker_list[i]. We can't
     # do that in Tkinter so we set the global variable. (This works).
@@ -110,10 +110,10 @@ def adjust_maker(w, inc):
 
 def validate_maker(w):
     try:
-	i = maker_list.index(demo_maker.get())
+        i = maker_list.index(demo_maker.get())
     except ValueError:
-	# Works here though. Why ? Beats me.
-	return maker_list[0]
+        # Works here though. Why ? Beats me.
+        return maker_list[0]
     # Works here though. Why ? Beats me.
     return maker_list[i]
 
diff --git a/Demo/tix/samples/DirList.py b/Demo/tix/samples/DirList.py
index 8d7536c..5fd8c0d 100755
--- a/Demo/tix/samples/DirList.py
+++ b/Demo/tix/samples/DirList.py
@@ -1,6 +1,6 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
 #
-#	$Id$
+#       $Id$
 #
 # Tix Demostration Program
 #
@@ -19,21 +19,21 @@
 import Tix, os, copy
 from Tkconstants import *
 
-TCL_ALL_EVENTS		= 0
+TCL_ALL_EVENTS          = 0
 
 def RunSample (root):
     dirlist = DemoDirList(root)
     dirlist.mainloop()
     dirlist.destroy()
-    
+
 class DemoDirList:
     def __init__(self, w):
         self.root = w
         self.exit = -1
-        
+
         z = w.winfo_toplevel()
         z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())
-        
+
         # Create the tixDirList and the tixLabelEntry widgets on the on the top
         # of the dialog box
 
@@ -48,14 +48,14 @@ class DemoDirList:
         #
         top.dir = Tix.DirList(top)
         top.dir.hlist['width'] = 40
-        
+
         # When the user presses the ".." button, the selected directory
         # is "transferred" into the entry widget
         #
         top.btn = Tix.Button(top, text = "  >>  ", pady = 0)
 
         # We use a LabelEntry to hold the installation directory. The user
-        # can choose from the DirList widget, or he can type in the directory 
+        # can choose from the DirList widget, or he can type in the directory
         # manually
         #
         top.ent = Tix.LabelEntry(top, label="Installation Directory:",
@@ -64,7 +64,7 @@ class DemoDirList:
                                   entry.width 40
                                   label.anchor w
                                   ''')
-        
+
         font = self.root.tk.eval('tix option get fixed_font')
         # font = self.root.master.tix_option_get('fixed_font')
         top.ent.entry['font'] = font
@@ -129,4 +129,3 @@ if __name__== '__main__' :
         for line in traceback.format_exception(t,v,tb):
             text = text + line + '\n'
             d = tkMessageBox.showerror ( 'Tix Demo Error', text)
-
diff --git a/Demo/tix/samples/DirTree.py b/Demo/tix/samples/DirTree.py
index d007a2b..2e4fe0b 100755
--- a/Demo/tix/samples/DirTree.py
+++ b/Demo/tix/samples/DirTree.py
@@ -1,6 +1,6 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
 #
-#	$Id$
+#       $Id$
 #
 # Tix Demostration Program
 #
@@ -19,7 +19,7 @@
 import Tix, os, copy
 from Tkconstants import *
 
-TCL_ALL_EVENTS		= 0
+TCL_ALL_EVENTS          = 0
 
 def RunSample (root):
     dirtree = DemoDirTree(root)
@@ -30,7 +30,7 @@ class DemoDirTree:
     def __init__(self, w):
         self.root = w
         self.exit = -1
-        
+
         z = w.winfo_toplevel()
         z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())
 
@@ -48,14 +48,14 @@ class DemoDirTree:
         #
         top.dir = Tix.DirTree(top)
         top.dir.hlist['width'] = 40
-        
+
         # When the user presses the ".." button, the selected directory
         # is "transferred" into the entry widget
         #
         top.btn = Tix.Button(top, text = "  >>  ", pady = 0)
 
         # We use a LabelEntry to hold the installation directory. The user
-        # can choose from the DirTree widget, or he can type in the directory 
+        # can choose from the DirTree widget, or he can type in the directory
         # manually
         #
         top.ent = Tix.LabelEntry(top, label="Installation Directory:",
@@ -115,4 +115,3 @@ class DemoDirTree:
 if __name__== '__main__' :
     root=Tix.Tk()
     RunSample(root)
-
diff --git a/Demo/tix/samples/NoteBook.py b/Demo/tix/samples/NoteBook.py
index abf3bfd..1e0da3e 100755
--- a/Demo/tix/samples/NoteBook.py
+++ b/Demo/tix/samples/NoteBook.py
@@ -1,5 +1,5 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
-# 
+#
 # $Id$
 #
 # Tix Demostration Program
@@ -23,9 +23,9 @@ def RunSample(w):
     # notebook, so that they are well-aligned on the screen.
     prefix = Tix.OptionName(w)
     if prefix:
-	prefix = '*'+prefix
+        prefix = '*'+prefix
     else:
-	prefix = ''
+        prefix = ''
     w.option_add(prefix+'*TixControl*entry.width', 10)
     w.option_add(prefix+'*TixControl*label.width', 18)
     w.option_add(prefix+'*TixControl*label.anchor', Tix.E)
@@ -37,14 +37,14 @@ def RunSample(w):
     nb = Tix.NoteBook(w, name='nb', ipadx=6, ipady=6)
     nb['bg'] = 'gray'
     nb.nbframe['backpagecolor'] = 'gray'
-	
+
     # Create the two tabs on the notebook. The -underline option
     # puts a underline on the first character of the labels of the tabs.
     # Keyboard accelerators will be defined automatically according
-    # to the underlined character.	
+    # to the underlined character.
     nb.add('hard_disk', label="Hard Disk", underline=0)
     nb.add('network', label="Network", underline=0)
-	
+
     nb.pack(expand=1, fill=Tix.BOTH, padx=5, pady=5 ,side=Tix.TOP)
 
     #----------------------------------------
@@ -56,62 +56,62 @@ def RunSample(w):
     tab=nb.hard_disk
     f = Tix.Frame(tab)
     common = Tix.Frame(tab)
-	
+
     f.pack(side=Tix.LEFT, padx=2, pady=2, fill=Tix.BOTH, expand=1)
     common.pack(side=Tix.RIGHT, padx=2, fill=Tix.Y)
-	
+
     a = Tix.Control(f, value=12,   label='Access time: ')
     w = Tix.Control(f, value=400,  label='Write Throughput: ')
     r = Tix.Control(f, value=400,  label='Read Throughput: ')
     c = Tix.Control(f, value=1021, label='Capacity: ')
-	
+
     a.pack(side=Tix.TOP, padx=20, pady=2)
     w.pack(side=Tix.TOP, padx=20, pady=2)
     r.pack(side=Tix.TOP, padx=20, pady=2)
     c.pack(side=Tix.TOP, padx=20, pady=2)
-	
+
     # Create the common buttons
     createCommonButtons(common)
-	
+
     #----------------------------------------
-    # Create the second page	
+    # Create the second page
     #----------------------------------------
-	
+
     tab = nb.network
 
     f = Tix.Frame(tab)
     common = Tix.Frame(tab)
-	
+
     f.pack(side=Tix.LEFT, padx=2, pady=2, fill=Tix.BOTH, expand=1)
     common.pack(side=Tix.RIGHT, padx=2, fill=Tix.Y)
-	
+
     a = Tix.Control(f, value=12,   label='Access time: ')
     w = Tix.Control(f, value=400,  label='Write Throughput: ')
     r = Tix.Control(f, value=400,  label='Read Throughput: ')
     c = Tix.Control(f, value=1021, label='Capacity: ')
     u = Tix.Control(f, value=10,   label='Users: ')
-	
+
     a.pack(side=Tix.TOP, padx=20, pady=2)
     w.pack(side=Tix.TOP, padx=20, pady=2)
     r.pack(side=Tix.TOP, padx=20, pady=2)
     c.pack(side=Tix.TOP, padx=20, pady=2)
     u.pack(side=Tix.TOP, padx=20, pady=2)
-	
+
     createCommonButtons(common)
-	
+
 def doDestroy():
     global root
     root.destroy()
 
 def createCommonButtons(master):
-    ok = Tix.Button(master, name='ok', text='OK', width=6, 
-		command=doDestroy)
-    cancel = Tix.Button(master, name='cancel', 
-		    text='Cancel', width=6, 
-		    command=doDestroy)
-    
+    ok = Tix.Button(master, name='ok', text='OK', width=6,
+                command=doDestroy)
+    cancel = Tix.Button(master, name='cancel',
+                    text='Cancel', width=6,
+                    command=doDestroy)
+
     ok.pack(side=Tix.TOP, padx=2, pady=2)
-    cancel.pack(side=Tix.TOP, padx=2, pady=2)	
+    cancel.pack(side=Tix.TOP, padx=2, pady=2)
 
 if __name__ == '__main__':
     root = Tix.Tk()
diff --git a/Demo/tix/samples/OptMenu.py b/Demo/tix/samples/OptMenu.py
index ecb0c86..1d39420 100755
--- a/Demo/tix/samples/OptMenu.py
+++ b/Demo/tix/samples/OptMenu.py
@@ -1,5 +1,5 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
-# 
+#
 # $Id$
 #
 # Tix Demostration Program
@@ -16,7 +16,7 @@
 import Tix
 
 options = {'text':'Plain Text', 'post':'PostScript', 'html':'HTML',
-	   'tex':'LaTeX', 'rtf':'Rich Text Format'}
+           'tex':'LaTeX', 'rtf':'Rich Text Format'}
 
 def RunSample(w):
     global demo_opt_from, demo_opt_to
@@ -27,22 +27,22 @@ def RunSample(w):
     top = Tix.Frame(w, bd=1, relief=Tix.RAISED)
 
     from_file = Tix.OptionMenu(top, label="From File Format : ",
-			       variable=demo_opt_from,
-			       options = 'label.width  19 label.anchor e menubutton.width 15')
+                               variable=demo_opt_from,
+                               options = 'label.width  19 label.anchor e menubutton.width 15')
 
     to_file = Tix.OptionMenu(top, label="To File Format : ",
-			     variable=demo_opt_to,
-			     options='label.width  19 label.anchor e menubutton.width 15')
+                             variable=demo_opt_to,
+                             options='label.width  19 label.anchor e menubutton.width 15')
 
     # Add the available options to the two OptionMenu widgets
     #
     # [Hint] You have to add the options first before you set the
-    #	     global variables "demo_opt_from" and "demo_opt_to". Otherwise
-    #	     the OptionMenu widget will complain about "unknown options"!
+    #        global variables "demo_opt_from" and "demo_opt_to". Otherwise
+    #        the OptionMenu widget will complain about "unknown options"!
     #
     for opt in options.keys():
-	from_file.add_command(opt, label=options[opt])
-	to_file.add_command(opt, label=options[opt])
+        from_file.add_command(opt, label=options[opt])
+        to_file.add_command(opt, label=options[opt])
 
     demo_opt_from.set('html')
     demo_opt_to.set('post')
@@ -52,9 +52,9 @@ def RunSample(w):
 
     box = Tix.ButtonBox(w, orientation=Tix.HORIZONTAL)
     box.add('ok', text='Ok', underline=0, width=6,
-	    command=lambda w=w: ok_command(w))
+            command=lambda w=w: ok_command(w))
     box.add('cancel', text='Cancel', underline=0, width=6,
-	    command=lambda w=w: w.destroy())
+            command=lambda w=w: w.destroy())
     box.pack(side=Tix.BOTTOM, fill=Tix.X)
     top.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)
 
diff --git a/Demo/tix/samples/PanedWin.py b/Demo/tix/samples/PanedWin.py
index bfe10c2..3efc731 100755
--- a/Demo/tix/samples/PanedWin.py
+++ b/Demo/tix/samples/PanedWin.py
@@ -17,7 +17,7 @@
 
 import Tix
 
-TCL_ALL_EVENTS		= 0
+TCL_ALL_EVENTS          = 0
 
 def RunSample (root):
     panedwin = DemoPanedwin(root)
diff --git a/Demo/tix/samples/PopMenu.py b/Demo/tix/samples/PopMenu.py
index 602eafd..32f3229 100755
--- a/Demo/tix/samples/PopMenu.py
+++ b/Demo/tix/samples/PopMenu.py
@@ -1,6 +1,6 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
 #
-#	$Id$
+#       $Id$
 #
 # Tix Demostration Program
 #
@@ -27,9 +27,9 @@ def RunSample(w):
     p.bind_widget(top)
     p.bind_widget(but)
 
-    # Set the entries inside the PopupMenu widget. 
+    # Set the entries inside the PopupMenu widget.
     # [Hint] You have to manipulate the "menu" subwidget.
-    #	     $w.top.p itself is NOT a menu widget.
+    #        $w.top.p itself is NOT a menu widget.
     # [Hint] Watch carefully how the sub-menu is created
     #
     p.menu.add_command(label='Desktop', underline=0)
@@ -45,9 +45,9 @@ def RunSample(w):
 
     box = Tix.ButtonBox(w, orientation=Tix.HORIZONTAL)
     box.add('ok', text='Ok', underline=0, width=6,
-	    command=lambda w=w: w.destroy())
+            command=lambda w=w: w.destroy())
     box.add('cancel', text='Cancel', underline=0, width=6,
-	    command=lambda w=w: w.destroy())
+            command=lambda w=w: w.destroy())
     box.pack(side=Tix.BOTTOM, fill=Tix.X)
     top.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)
 
diff --git a/Demo/tix/samples/SHList1.py b/Demo/tix/samples/SHList1.py
index 0114dc8..7ca7b3e 100755
--- a/Demo/tix/samples/SHList1.py
+++ b/Demo/tix/samples/SHList1.py
@@ -1,5 +1,5 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
-# 
+#
 # $Id$
 #
 # Tix Demostration Program
@@ -15,13 +15,13 @@
 
 import Tix
 
-TCL_ALL_EVENTS		= 0
+TCL_ALL_EVENTS          = 0
 
 def RunSample (root):
     shlist = DemoSHList(root)
     shlist.mainloop()
     shlist.destroy()
-    
+
 class DemoSHList:
     def __init__(self, w):
         self.root = w
@@ -29,7 +29,7 @@ class DemoSHList:
 
         z = w.winfo_toplevel()
         z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())
-        
+
         # We create the frame and the ScrolledHList widget
         # at the top of the dialog box
         #
@@ -61,7 +61,7 @@ class DemoSHList:
 
         hlist=top.a.hlist
 
-        # Let configure the appearance of the HList subwidget 
+        # Let configure the appearance of the HList subwidget
         #
         hlist.config( separator='.', width=25, drawbranch=0, indent=10)
 
@@ -71,7 +71,7 @@ class DemoSHList:
                 f=Tix.Frame(hlist, name='sep%d' % count, height=2, width=150,
                     bd=2, relief=Tix.SUNKEN )
 
-                hlist.add_child( itemtype=Tix.WINDOW, 
+                hlist.add_child( itemtype=Tix.WINDOW,
                     window=f, state=Tix.DISABLED )
 
             hlist.add(boss, itemtype=Tix.TEXT, text=name)
@@ -88,13 +88,13 @@ class DemoSHList:
             hlist.add( key, text=name )
 
             # [Hint] Make sure the keys (e.g. 'boss.person') you choose
-            #	 are unique names. If you cannot be sure of this (because of
-            #	 the structure of your database, e.g.) you can use the
-            #	 "add_child" command instead:
+            #    are unique names. If you cannot be sure of this (because of
+            #    the structure of your database, e.g.) you can use the
+            #    "add_child" command instead:
             #
             #  hlist.addchild( boss,  text=name)
             #                  ^^^^
-            #                  parent entryPath 
+            #                  parent entryPath
 
 
         # Use a ButtonBox to hold the buttons.
@@ -129,4 +129,3 @@ class DemoSHList:
 if __name__== '__main__' :
     root=Tix.Tk()
     RunSample(root)
-
diff --git a/Demo/tix/samples/SHList2.py b/Demo/tix/samples/SHList2.py
index e82d1e5..17fd551 100755
--- a/Demo/tix/samples/SHList2.py
+++ b/Demo/tix/samples/SHList2.py
@@ -1,5 +1,5 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
-# 
+#
 # $Id$
 #
 # Tix Demostration Program
@@ -13,18 +13,18 @@
 # This file demonstrates how to use multiple columns and multiple styles
 # in the tixHList widget
 #
-# In a tixHList widget, you can have one ore more columns. 
+# In a tixHList widget, you can have one ore more columns.
 #
 
 import Tix
 
-TCL_ALL_EVENTS		= 0
+TCL_ALL_EVENTS          = 0
 
 def RunSample (root):
     shlist = DemoSHList(root)
     shlist.mainloop()
     shlist.destroy()
-    
+
 class DemoSHList:
     def __init__(self, w):
         self.root = w
@@ -32,7 +32,7 @@ class DemoSHList:
 
         z = w.winfo_toplevel()
         z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())
-        
+
         # We create the frame and the ScrolledHList widget
         # at the top of the dialog box
         #
@@ -47,7 +47,7 @@ class DemoSHList:
         hlist=top.a.hlist
 
         # Create the title for the HList widget
-        #	>> Notice that we have set the hlist.header subwidget option to true
+        #       >> Notice that we have set the hlist.header subwidget option to true
         #      so that the header is displayed
         #
 
@@ -72,22 +72,22 @@ class DemoSHList:
 
         # This is our little relational database
         #
-        boss = ('doe', 'John Doe',	'Director')
+        boss = ('doe', 'John Doe',      'Director')
 
         managers = [
-            ('jeff',  'Jeff Waxman',	'Manager'),
-            ('john',  'John Lee',		'Manager'),
-            ('peter', 'Peter Kenson',	'Manager')
+            ('jeff',  'Jeff Waxman',    'Manager'),
+            ('john',  'John Lee',               'Manager'),
+            ('peter', 'Peter Kenson',   'Manager')
         ]
 
         employees = [
-            ('alex',  'john',	'Alex Kellman',		'Clerk'),
-            ('alan',  'john',       'Alan Adams',		'Clerk'),
-            ('andy',  'peter',      'Andreas Crawford',	'Salesman'),
-            ('doug',  'jeff',       'Douglas Bloom',	'Clerk'),
-            ('jon',   'peter',      'Jon Baraki',		'Salesman'),
-            ('chris', 'jeff',       'Chris Geoffrey',	'Clerk'),
-            ('chuck', 'jeff',       'Chuck McLean',		'Cleaner')
+            ('alex',  'john',   'Alex Kellman',         'Clerk'),
+            ('alan',  'john',       'Alan Adams',               'Clerk'),
+            ('andy',  'peter',      'Andreas Crawford', 'Salesman'),
+            ('doug',  'jeff',       'Douglas Bloom',    'Clerk'),
+            ('jon',   'peter',      'Jon Baraki',               'Salesman'),
+            ('chris', 'jeff',       'Chris Geoffrey',   'Clerk'),
+            ('chuck', 'jeff',       'Chuck McLean',             'Cleaner')
         ]
 
         style['mgr_name'] = Tix.DisplayStyle(Tix.TEXT, refwindow=hlist)
@@ -98,7 +98,7 @@ class DemoSHList:
 
         style['empl_posn'] = Tix.DisplayStyle(Tix.TEXT, padx=8, refwindow=hlist)
 
-        # Let configure the appearance of the HList subwidget 
+        # Let configure the appearance of the HList subwidget
         #
         hlist.config(separator='.', width=25, drawbranch=0, indent=10)
         hlist.column_width(0, chars=20)
@@ -124,10 +124,10 @@ class DemoSHList:
         for key,mgr,name,posn in employees :
             # "." is the separator character we chose above
 
-            entrypath = '.' + mgr        + '.' + key 
+            entrypath = '.' + mgr        + '.' + key
 
             #           ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
-            #	    parent entryPath / child's name
+            #       parent entryPath / child's name
 
             hlist.add(entrypath, text=name, style=style['empl_name'])
             hlist.item_create(entrypath, 1, itemtype=Tix.TEXT,
@@ -166,4 +166,3 @@ class DemoSHList:
 if __name__== '__main__' :
     root=Tix.Tk()
     RunSample(root)
-
diff --git a/Demo/tix/samples/Tree.py b/Demo/tix/samples/Tree.py
index 2fdd7c7..9a7e481 100755
--- a/Demo/tix/samples/Tree.py
+++ b/Demo/tix/samples/Tree.py
@@ -1,5 +1,5 @@
 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
-# 
+#
 # $Id$
 #
 # Tix Demostration Program
@@ -34,17 +34,17 @@ def RunSample(w):
 
 def adddir(tree, dir):
     if dir == '/':
-	text = '/'
+        text = '/'
     else:
-	text = os.path.basename(dir)
+        text = os.path.basename(dir)
     tree.hlist.add(dir, itemtype=Tix.IMAGETEXT, text=text,
-		   image=tree.tk.call('tix', 'getimage', 'folder'))
+                   image=tree.tk.call('tix', 'getimage', 'folder'))
     try:
-	os.listdir(dir)
-	tree.setmode(dir, 'open')
+        os.listdir(dir)
+        tree.setmode(dir, 'open')
     except os.error:
-	# No read permission ?
-	pass
+        # No read permission ?
+        pass
 
 # This function is called whenever the user presses the (+) indicator or
 # double clicks on a directory whose mode is "open". It loads the files
@@ -57,22 +57,22 @@ def adddir(tree, dir):
 def opendir(tree, dir):
     entries = tree.hlist.info_children(dir)
     if entries:
-	# We have already loaded this directory. Let's just
-	# show all the child entries
-	#
-	# Note: since we load the directory only once, it will not be
-	#       refreshed if the you add or remove files from this
-	#	directory.
-	#
-	for entry in entries:
-	    tree.hlist.show_entry(entry)
+        # We have already loaded this directory. Let's just
+        # show all the child entries
+        #
+        # Note: since we load the directory only once, it will not be
+        #       refreshed if the you add or remove files from this
+        #       directory.
+        #
+        for entry in entries:
+            tree.hlist.show_entry(entry)
     files = os.listdir(dir)
     for file in files:
-	if os.path.isdir(dir + '/' + file):
-	    adddir(tree, dir + '/' + file)
-	else:
-	    tree.hlist.add(dir + '/' + file, itemtype=Tix.IMAGETEXT, text=file,
-			   image=tree.tk.call('tix', 'getimage', 'file'))
+        if os.path.isdir(dir + '/' + file):
+            adddir(tree, dir + '/' + file)
+        else:
+            tree.hlist.add(dir + '/' + file, itemtype=Tix.IMAGETEXT, text=file,
+                           image=tree.tk.call('tix', 'getimage', 'file'))
 
 if __name__ == '__main__':
     root = Tix.Tk()
diff --git a/Demo/tix/tixwidgets.py b/Demo/tix/tixwidgets.py
index ae7b063..de2e22e 100644
--- a/Demo/tix/tixwidgets.py
+++ b/Demo/tix/tixwidgets.py
@@ -4,38 +4,38 @@
 #
 # tixwidgets.py --
 #
-#	For Tix, see http://tix.sourceforge.net
+#       For Tix, see http://tix.sourceforge.net
 #
-# 	This is a demo program of some of the Tix widgets available in Python.
-#	If you have installed Python & Tix properly, you can execute this as
+#       This is a demo program of some of the Tix widgets available in Python.
+#       If you have installed Python & Tix properly, you can execute this as
 #
-#		% python tixwidgets.py
+#               % python tixwidgets.py
 #
 
 import os, os.path, sys, Tix
 from Tkconstants import *
 import traceback, tkMessageBox
 
-TCL_DONT_WAIT		= 1<<1
-TCL_WINDOW_EVENTS	= 1<<2
-TCL_FILE_EVENTS		= 1<<3
-TCL_TIMER_EVENTS	= 1<<4
-TCL_IDLE_EVENTS		= 1<<5
-TCL_ALL_EVENTS		= 0
+TCL_DONT_WAIT           = 1<<1
+TCL_WINDOW_EVENTS       = 1<<2
+TCL_FILE_EVENTS         = 1<<3
+TCL_TIMER_EVENTS        = 1<<4
+TCL_IDLE_EVENTS         = 1<<5
+TCL_ALL_EVENTS          = 0
 
 class Demo:
     def __init__(self, top):
         self.root = top
         self.exit = -1
 
-        self.dir = None				# script directory
-        self.balloon = None			# balloon widget
+        self.dir = None                         # script directory
+        self.balloon = None                     # balloon widget
         self.useBalloons = Tix.StringVar()
         self.useBalloons.set('0')
-        self.statusbar = None			# status bar widget
-        self.welmsg = None			# Msg widget
-        self.welfont = ''			# font name
-        self.welsize = ''			# font size
+        self.statusbar = None                   # status bar widget
+        self.welmsg = None                      # Msg widget
+        self.welfont = ''                       # font name
+        self.welsize = ''                       # font size
 
         progname = sys.argv[0]
         dirname = os.path.dirname(progname)
@@ -72,7 +72,7 @@ class Demo:
                            variable=self.useBalloons)
         # The trace variable option doesn't seem to work, instead I use 'command'
         #apply(w.tk.call, ('trace', 'variable', self.useBalloons, 'w',
-        #		      ToggleHelp))
+        #                     ToggleHelp))
 
         return w
 
@@ -130,15 +130,15 @@ class Demo:
         # To show Tcl errors - uncomment this to see the listbox bug.
         # Tkinter defines a Tcl tkerror procedure that in effect
         # silences all background Tcl error reporting.
-	# root.tk.eval('if {[info commands tkerror] != ""} {rename tkerror pytkerror}')
+        # root.tk.eval('if {[info commands tkerror] != ""} {rename tkerror pytkerror}')
     def quitcmd (self):
         """Quit our mainloop. It is up to you to call root.destroy() after."""
         self.exit = 0
 
     def loop(self):
-	"""This is an explict replacement for _tkinter mainloop()
-	It lets you catch keyboard interrupts easier, and avoids
-	the 20 msec. dead sleep() which burns a constant CPU."""
+        """This is an explict replacement for _tkinter mainloop()
+        It lets you catch keyboard interrupts easier, and avoids
+        the 20 msec. dead sleep() which burns a constant CPU."""
         while self.exit < 0:
             # There are 2 whiles here. The outer one lets you continue
             # after a ^C interrupt.
@@ -221,9 +221,9 @@ def MkWelcomeBar(top):
     b2.pack(side=Tix.LEFT, padx=4, pady=4)
 
     demo.balloon.bind_widget(b1, msg='Choose\na font',
-			     statusmsg='Choose a font for this page')
+                             statusmsg='Choose a font for this page')
     demo.balloon.bind_widget(b2, msg='Point size',
-			     statusmsg='Choose the font size for this page')
+                             statusmsg='Choose the font size for this page')
     return w
 
 def MkWelcomeText(top):
@@ -233,10 +233,10 @@ def MkWelcomeText(top):
     win = w.window
     text = 'Welcome to TIX in Python'
     title = Tix.Label(win,
-		      bd=0, width=30, anchor=Tix.N, text=text)
+                      bd=0, width=30, anchor=Tix.N, text=text)
     msg = Tix.Message(win,
-		      bd=0, width=400, anchor=Tix.N,
-		      text='Tix is a set of mega-widgets based on TK. This program \
+                      bd=0, width=400, anchor=Tix.N,
+                      text='Tix is a set of mega-widgets based on TK. This program \
 demonstrates the widgets in the Tix widget set. You can choose the pages \
 in this window to look at the corresponding widgets. \n\n\
 To quit this program, choose the "File | Exit" command.\n\n\
@@ -250,19 +250,19 @@ def MainTextFont(w):
     global demo
 
     if not demo.welmsg:
-	return
+        return
     font = demo.welfont['value']
     point = demo.welsize['value']
     if font == 'Times Roman':
-	font = 'times'
+        font = 'times'
     fontstr = '%s %s' % (font, point)
     demo.welmsg['font'] = fontstr
 
 def ToggleHelp():
     if demo.useBalloons.get() == '1':
-	demo.balloon['state'] = 'both'
+        demo.balloon['state'] = 'both'
     else:
-	demo.balloon['state'] = 'none'
+        demo.balloon['state'] = 'none'
 
 def MkChoosers(nb, name):
     w = nb.page(name)
@@ -307,7 +307,7 @@ def MkCombo(w):
     static = Tix.ComboBox(w, label='Static', editable=0, options=options)
     editable = Tix.ComboBox(w, label='Editable', editable=1, options=options)
     history = Tix.ComboBox(w, label='History', editable=1, history=1,
-			   anchor=Tix.E, options=options)
+                           anchor=Tix.E, options=options)
     static.insert(Tix.END, 'January')
     static.insert(Tix.END, 'February')
     static.insert(Tix.END, 'March')
@@ -340,20 +340,20 @@ states = ['Bengal', 'Delhi', 'Karnataka', 'Tamil Nadu']
 def spin_cmd(w, inc):
     idx = states.index(demo_spintxt.get()) + inc
     if idx < 0:
-	idx = len(states) - 1
+        idx = len(states) - 1
     elif idx >= len(states):
-	idx = 0
+        idx = 0
 # following doesn't work.
 #    return states[idx]
-    demo_spintxt.set(states[idx])	# this works
+    demo_spintxt.set(states[idx])       # this works
 
 def spin_validate(w):
     global states, demo_spintxt
 
     try:
-	i = states.index(demo_spintxt.get())
+        i = states.index(demo_spintxt.get())
     except ValueError:
-	return states[0]
+        return states[0]
     return states[i]
     # why this procedure works as opposed to the previous one beats me.
 
@@ -417,8 +417,8 @@ def MkOptMenu(w):
 
 def MkFileEnt(w):
     msg = Tix.Message(w,
-		      relief=Tix.FLAT, width=240, anchor=Tix.N,
-		      text='Press the "open file" icon button and a TixFileSelectDialog will popup.')
+                      relief=Tix.FLAT, width=240, anchor=Tix.N,
+                      text='Press the "open file" icon button and a TixFileSelectDialog will popup.')
     ent = Tix.FileEntry(w, label='Select a file : ')
     msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)
     ent.pack(side=Tix.TOP, fill=Tix.X, padx=3, pady=3)
@@ -429,8 +429,8 @@ def MkFileBox(w):
     and your past selections are recorded.
     """
     msg = Tix.Message(w,
-		      relief=Tix.FLAT, width=240, anchor=Tix.N,
-		      text='The Tix FileSelectBox is a Motif-style box with various enhancements. For example, you can adjust the size of the two listboxes and your past selections are recorded.')
+                      relief=Tix.FLAT, width=240, anchor=Tix.N,
+                      text='The Tix FileSelectBox is a Motif-style box with various enhancements. For example, you can adjust the size of the two listboxes and your past selections are recorded.')
     box = Tix.FileSelectBox(w)
     msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)
     box.pack(side=Tix.TOP, fill=Tix.X, padx=3, pady=3)
@@ -443,8 +443,8 @@ def MkToolBar(w):
     options='frame.borderWidth 1'
 
     msg = Tix.Message(w,
-		      relief=Tix.FLAT, width=240, anchor=Tix.N,
-		      text='The Select widget is also good for arranging buttons in a tool bar.')
+                      relief=Tix.FLAT, width=240, anchor=Tix.N,
+                      text='The Select widget is also good for arranging buttons in a tool bar.')
     bar = Tix.Frame(w, bd=2, relief=Tix.RAISED)
     font = Tix.Select(w, allowzero=1, radio=0, label='', options=options)
     para = Tix.Select(w, allowzero=0, radio=1, label='', options=options)
@@ -466,8 +466,8 @@ def MkToolBar(w):
 
 def MkTitle(w):
     msg = Tix.Message(w,
-		      relief=Tix.FLAT, width=240, anchor=Tix.N,
-		      text='There are many types of "chooser" widgets that allow the user to input different types of information')
+                      relief=Tix.FLAT, width=240, anchor=Tix.N,
+                      text='There are many types of "chooser" widgets that allow the user to input different types of information')
     msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)
 
 def MkScroll(nb, name):
@@ -494,8 +494,8 @@ def MkSList(w):
     top = Tix.Frame(w, width=300, height=330)
     bot = Tix.Frame(w)
     msg = Tix.Message(top,
-		      relief=Tix.FLAT, width=200, anchor=Tix.N,
-		      text='This TixScrolledListBox is configured so that it uses scrollbars only when it is necessary. Use the handles to resize the listbox and watch the scrollbars automatically appear and disappear.')
+                      relief=Tix.FLAT, width=200, anchor=Tix.N,
+                      text='This TixScrolledListBox is configured so that it uses scrollbars only when it is necessary. Use the handles to resize the listbox and watch the scrollbars automatically appear and disappear.')
 
     list = Tix.ScrolledListBox(top, scrollbar='auto')
     list.place(x=50, y=150, width=120, height=80)
@@ -508,8 +508,8 @@ def MkSList(w):
     list.listbox.insert(Tix.END, 'Washington')
 
     rh = Tix.ResizeHandle(top, bg='black',
-			  relief=Tix.RAISED,
-			  handlesize=8, gridded=1, minwidth=50, minheight=30)
+                          relief=Tix.RAISED,
+                          handlesize=8, gridded=1, minwidth=50, minheight=30)
     btn = Tix.Button(bot, text='Reset', command=lambda w=rh, x=list: SList_reset(w,x))
     top.propagate(0)
     msg.pack(fill=Tix.X)
@@ -517,7 +517,7 @@ def MkSList(w):
     top.pack(expand=1, fill=Tix.BOTH)
     bot.pack(fill=Tix.BOTH)
     list.bind('<Map>', func=lambda arg=0, rh=rh, list=list:
-	      list.tk.call('tixDoWhenIdle', str(rh), 'attachwidget', str(list)))
+              list.tk.call('tixDoWhenIdle', str(rh), 'attachwidget', str(list)))
 
 def SList_reset(rh, list):
     list.place(x=50, y=150, width=120, height=80)
@@ -539,8 +539,8 @@ def MkSWindow(w):
     top = Tix.Frame(w, width=330, height=330)
     bot = Tix.Frame(w)
     msg = Tix.Message(top,
-		      relief=Tix.FLAT, width=200, anchor=Tix.N,
-		      text=text)
+                      relief=Tix.FLAT, width=200, anchor=Tix.N,
+                      text=text)
 
     win = Tix.ScrolledWindow(top, scrollbar='auto')
 
@@ -551,8 +551,8 @@ def MkSWindow(w):
     win.place(x=30, y=150, width=190, height=120)
 
     rh = Tix.ResizeHandle(top, bg='black',
-			  relief=Tix.RAISED,
-			  handlesize=8, gridded=1, minwidth=50, minheight=30)
+                          relief=Tix.RAISED,
+                          handlesize=8, gridded=1, minwidth=50, minheight=30)
     btn = Tix.Button(bot, text='Reset', command=lambda w=rh, x=win: SWindow_reset(w,x))
     top.propagate(0)
     msg.pack(fill=Tix.X)
@@ -561,7 +561,7 @@ def MkSWindow(w):
     bot.pack(fill=Tix.BOTH)
 
     win.bind('<Map>', func=lambda arg=0, rh=rh, win=win:
-	     win.tk.call('tixDoWhenIdle', str(rh), 'attachwidget', str(win)))
+             win.tk.call('tixDoWhenIdle', str(rh), 'attachwidget', str(win)))
 
 def SWindow_reset(rh, win):
     win.place(x=30, y=150, width=190, height=120)
@@ -574,27 +574,27 @@ def MkSText(w):
     top = Tix.Frame(w, width=330, height=330)
     bot = Tix.Frame(w)
     msg = Tix.Message(top,
-		      relief=Tix.FLAT, width=200, anchor=Tix.N,
-		      text='The Tix ScrolledWindow widget allows you to scroll any kind of Tk widget. It is more versatile than a scrolled canvas widget.')
+                      relief=Tix.FLAT, width=200, anchor=Tix.N,
+                      text='The Tix ScrolledWindow widget allows you to scroll any kind of Tk widget. It is more versatile than a scrolled canvas widget.')
 
     win = Tix.ScrolledText(top, scrollbar='auto')
     win.text['wrap'] = 'none'
     win.text.insert(Tix.END, '''When -scrollbar is set to "auto", the
-scrollbars are shown only when needed. 
+scrollbars are shown only when needed.
 Additional modifiers can be used to force a
-scrollbar to be shown or hidden. For example, 
-"auto -y" means the horizontal scrollbar 
-should be shown when needed but the vertical 
+scrollbar to be shown or hidden. For example,
+"auto -y" means the horizontal scrollbar
+should be shown when needed but the vertical
 scrollbar should always be hidden;
 "auto +x" means the vertical scrollbar
-should be shown when needed but the horizontal 
+should be shown when needed but the horizontal
 scrollbar should always be shown, and so on.'''
 )
     win.place(x=30, y=150, width=190, height=100)
 
     rh = Tix.ResizeHandle(top, bg='black',
-			  relief=Tix.RAISED,
-			  handlesize=8, gridded=1, minwidth=50, minheight=30)
+                          relief=Tix.RAISED,
+                          handlesize=8, gridded=1, minwidth=50, minheight=30)
     btn = Tix.Button(bot, text='Reset', command=lambda w=rh, x=win: SText_reset(w,x))
     top.propagate(0)
     msg.pack(fill=Tix.X)
@@ -602,7 +602,7 @@ scrollbar should always be shown, and so on.'''
     top.pack(expand=1, fill=Tix.BOTH)
     bot.pack(fill=Tix.BOTH)
     win.bind('<Map>', func=lambda arg=0, rh=rh, win=win:
-	     win.tk.call('tixDoWhenIdle', str(rh), 'attachwidget', str(win)))
+             win.tk.call('tixDoWhenIdle', str(rh), 'attachwidget', str(win)))
 
 def SText_reset(rh, win):
     win.place(x=30, y=150, width=190, height=120)
@@ -628,8 +628,8 @@ def MkPanedWindow(w):
     or horizontally.
     """
     msg = Tix.Message(w,
-		      relief=Tix.FLAT, width=240, anchor=Tix.N,
-		      text='The PanedWindow widget allows the user to interactively manipulate the sizes of several panes. The panes can be arranged either vertically or horizontally.')
+                      relief=Tix.FLAT, width=240, anchor=Tix.N,
+                      text='The PanedWindow widget allows the user to interactively manipulate the sizes of several panes. The panes can be arranged either vertically or horizontally.')
     group = Tix.LabelEntry(w, label='Newsgroup:', options='entry.width 25')
     group.entry.insert(0,'comp.lang.python')
     pane = Tix.PanedWindow(w, orientation='vertical')
@@ -671,8 +671,8 @@ together with a bitmap, at the same time, inside a TK button widget.
 
 def MkNoteBook(w):
     msg = Tix.Message(w,
-		      relief=Tix.FLAT, width=240, anchor=Tix.N,
-		      text='The NoteBook widget allows you to layout a complex interface into individual pages.')
+                      relief=Tix.FLAT, width=240, anchor=Tix.N,
+                      text='The NoteBook widget allows you to layout a complex interface into individual pages.')
     # prefix = Tix.OptionName(w)
     # if not prefix: prefix = ''
     # w.option_add('*' + prefix + '*TixNoteBook*tagPadX', 8)
@@ -738,8 +738,8 @@ def MkDirListWidget(w):
     directories.
     """
     msg = Tix.Message(w,
-		      relief=Tix.FLAT, width=240, anchor=Tix.N,
-		      text='The Tix DirList widget gives a graphical representation of the file system directory and makes it easy for the user to choose and access directories.')
+                      relief=Tix.FLAT, width=240, anchor=Tix.N,
+                      text='The Tix DirList widget gives a graphical representation of the file system directory and makes it easy for the user to choose and access directories.')
     dirlist = Tix.DirList(w, options='hlist.padY 1 hlist.width 25 hlist.height 16')
     msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)
     dirlist.pack(side=Tix.TOP, padx=3, pady=3)
@@ -748,8 +748,8 @@ def MkExFileWidget(w):
     """The TixExFileSelectBox widget is more user friendly than the Motif
     style FileSelectBox.  """
     msg = Tix.Message(w,
-		      relief=Tix.FLAT, width=240, anchor=Tix.N,
-		      text='The Tix ExFileSelectBox widget is more user friendly than the Motif style FileSelectBox.')
+                      relief=Tix.FLAT, width=240, anchor=Tix.N,
+                      text='The Tix ExFileSelectBox widget is more user friendly than the Motif style FileSelectBox.')
     # There's a bug in the ComboBoxes - the scrolledlistbox is destroyed
     box = Tix.ExFileSelectBox(w, bd=2, relief=Tix.RAISED)
     msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)
@@ -758,118 +758,118 @@ def MkExFileWidget(w):
 ###
 ### List of all the demos we want to show off
 comments = {'widget' : 'Widget Demos', 'image' : 'Image Demos'}
-samples = {'Balloon'		: 'Balloon',
-	   'Button Box'		: 'BtnBox',
-	   'Combo Box'		: 'ComboBox',
-	   'Compound Image'	: 'CmpImg',
-	   'Directory List'	: 'DirList',
-	   'Directory Tree'	: 'DirTree',
-	   'Control'		: 'Control',
-	   'Notebook'		: 'NoteBook',
-	   'Option Menu'	: 'OptMenu',
-	   'Paned Window'	: 'PanedWin',
-	   'Popup Menu'		: 'PopMenu',
-	   'ScrolledHList (1)'	: 'SHList1',
-	   'ScrolledHList (2)'	: 'SHList2',
-	   'Tree (dynamic)'	: 'Tree'
+samples = {'Balloon'            : 'Balloon',
+           'Button Box'         : 'BtnBox',
+           'Combo Box'          : 'ComboBox',
+           'Compound Image'     : 'CmpImg',
+           'Directory List'     : 'DirList',
+           'Directory Tree'     : 'DirTree',
+           'Control'            : 'Control',
+           'Notebook'           : 'NoteBook',
+           'Option Menu'        : 'OptMenu',
+           'Paned Window'       : 'PanedWin',
+           'Popup Menu'         : 'PopMenu',
+           'ScrolledHList (1)'  : 'SHList1',
+           'ScrolledHList (2)'  : 'SHList2',
+           'Tree (dynamic)'     : 'Tree'
 }
 
 # There are still a lot of demos to be translated:
-##	set root {
-##	    {d "File Selectors"		file	}
-##	    {d "Hierachical ListBox"	hlist	}
-##	    {d "Tabular ListBox"	tlist	{c tixTList}}
-##	    {d "Grid Widget"		grid	{c tixGrid}}
-##	    {d "Manager Widgets"	manager	}
-##	    {d "Scrolled Widgets"	scroll	}
-##	    {d "Miscellaneous Widgets"	misc	}
-##	    {d "Image Types"		image	}
-##	}
+##      set root {
+##          {d "File Selectors"         file    }
+##          {d "Hierachical ListBox"    hlist   }
+##          {d "Tabular ListBox"        tlist   {c tixTList}}
+##          {d "Grid Widget"            grid    {c tixGrid}}
+##          {d "Manager Widgets"        manager }
+##          {d "Scrolled Widgets"       scroll  }
+##          {d "Miscellaneous Widgets"  misc    }
+##          {d "Image Types"            image   }
+##      }
 ##
-##	set image {
-##	    {d "Compound Image"		cmpimg	}
-##	    {d "XPM Image"		xpm	{i pixmap}}
-##	}
+##      set image {
+##          {d "Compound Image"         cmpimg  }
+##          {d "XPM Image"              xpm     {i pixmap}}
+##      }
 ##
-##	set cmpimg {
-##done	    {f "In Buttons"		CmpImg.tcl	}
-##	    {f "In NoteBook"		CmpImg2.tcl	}
-##	    {f "Notebook Color Tabs"	CmpImg4.tcl	}
-##	    {f "Icons"			CmpImg3.tcl	}
-##	}
+##      set cmpimg {
+##done      {f "In Buttons"             CmpImg.tcl      }
+##          {f "In NoteBook"            CmpImg2.tcl     }
+##          {f "Notebook Color Tabs"    CmpImg4.tcl     }
+##          {f "Icons"                  CmpImg3.tcl     }
+##      }
 ##
-##	set xpm {
-##	    {f "In Button"		Xpm.tcl		{i pixmap}}
-##	    {f "In Menu"		Xpm1.tcl	{i pixmap}}
-##	}
+##      set xpm {
+##          {f "In Button"              Xpm.tcl         {i pixmap}}
+##          {f "In Menu"                Xpm1.tcl        {i pixmap}}
+##      }
 ##
-##	set file {
-##added	    {f DirList				DirList.tcl	}
-##added	    {f DirTree				DirTree.tcl	}
-##	    {f DirSelectDialog			DirDlg.tcl	}
-##	    {f ExFileSelectDialog		EFileDlg.tcl	}
-##	    {f FileSelectDialog			FileDlg.tcl	}
-##	    {f FileEntry			FileEnt.tcl	}
-##	}
+##      set file {
+##added     {f DirList                          DirList.tcl     }
+##added     {f DirTree                          DirTree.tcl     }
+##          {f DirSelectDialog                  DirDlg.tcl      }
+##          {f ExFileSelectDialog               EFileDlg.tcl    }
+##          {f FileSelectDialog                 FileDlg.tcl     }
+##          {f FileEntry                        FileEnt.tcl     }
+##      }
 ##
-##	set hlist {
-##	    {f HList			HList1.tcl	}
-##	    {f CheckList		ChkList.tcl	{c tixCheckList}}
-##done	    {f "ScrolledHList (1)"	SHList.tcl	}
-##done	    {f "ScrolledHList (2)"	SHList2.tcl	}
-##done	    {f Tree			Tree.tcl	}
-##done	    {f "Tree (Dynamic)"		DynTree.tcl	{v win}}
-##	}
+##      set hlist {
+##          {f HList                    HList1.tcl      }
+##          {f CheckList                ChkList.tcl     {c tixCheckList}}
+##done      {f "ScrolledHList (1)"      SHList.tcl      }
+##done      {f "ScrolledHList (2)"      SHList2.tcl     }
+##done      {f Tree                     Tree.tcl        }
+##done      {f "Tree (Dynamic)"         DynTree.tcl     {v win}}
+##      }
 ##
-##	set tlist {
-##	    {f "ScrolledTList (1)"	STList1.tcl	{c tixTList}}
-##	    {f "ScrolledTList (2)"	STList2.tcl	{c tixTList}}
-##	}
-##	global tcl_platform
-##	#  This demo hangs windows
-##	if {$tcl_platform(platform) != "windows"} {
-##na	lappend tlist     {f "TList File Viewer"	STList3.tcl	{c tixTList}}
-##	}
+##      set tlist {
+##          {f "ScrolledTList (1)"      STList1.tcl     {c tixTList}}
+##          {f "ScrolledTList (2)"      STList2.tcl     {c tixTList}}
+##      }
+##      global tcl_platform
+##      #  This demo hangs windows
+##      if {$tcl_platform(platform) != "windows"} {
+##na    lappend tlist     {f "TList File Viewer"        STList3.tcl     {c tixTList}}
+##      }
 ##
-##	set grid {
-##na	    {f "Simple Grid"		SGrid0.tcl	{c tixGrid}}
-##na	    {f "ScrolledGrid"		SGrid1.tcl	{c tixGrid}}
-##na	    {f "Editable Grid"		EditGrid.tcl	{c tixGrid}}
-##	}
+##      set grid {
+##na        {f "Simple Grid"            SGrid0.tcl      {c tixGrid}}
+##na        {f "ScrolledGrid"           SGrid1.tcl      {c tixGrid}}
+##na        {f "Editable Grid"          EditGrid.tcl    {c tixGrid}}
+##      }
 ##
-##	set scroll {
-##	    {f ScrolledListBox		SListBox.tcl	}
-##	    {f ScrolledText		SText.tcl	}
-##	    {f ScrolledWindow		SWindow.tcl	}
-##na	    {f "Canvas Object View"	CObjView.tcl	{c tixCObjView}}
-##	}
+##      set scroll {
+##          {f ScrolledListBox          SListBox.tcl    }
+##          {f ScrolledText             SText.tcl       }
+##          {f ScrolledWindow           SWindow.tcl     }
+##na        {f "Canvas Object View"     CObjView.tcl    {c tixCObjView}}
+##      }
 ##
-##	set manager {
-##	    {f ListNoteBook		ListNBK.tcl	}
-##done	    {f NoteBook			NoteBook.tcl	}
-##done	    {f PanedWindow		PanedWin.tcl	}
-##	}
+##      set manager {
+##          {f ListNoteBook             ListNBK.tcl     }
+##done      {f NoteBook                 NoteBook.tcl    }
+##done      {f PanedWindow              PanedWin.tcl    }
+##      }
 ##
-##	set misc {
-##done	    {f Balloon			Balloon.tcl	}
-##done	    {f ButtonBox		BtnBox.tcl	}
-##done	    {f ComboBox			ComboBox.tcl	}
-##done	    {f Control			Control.tcl	}
-##	    {f LabelEntry		LabEntry.tcl	}
-##	    {f LabelFrame		LabFrame.tcl	}
-##	    {f Meter			Meter.tcl	{c tixMeter}}
-##done	    {f OptionMenu		OptMenu.tcl	}
-##done	    {f PopupMenu		PopMenu.tcl	}
-##	    {f Select			Select.tcl	}
-##	    {f StdButtonBox		StdBBox.tcl	}
-##	}
+##      set misc {
+##done      {f Balloon                  Balloon.tcl     }
+##done      {f ButtonBox                BtnBox.tcl      }
+##done      {f ComboBox                 ComboBox.tcl    }
+##done      {f Control                  Control.tcl     }
+##          {f LabelEntry               LabEntry.tcl    }
+##          {f LabelFrame               LabFrame.tcl    }
+##          {f Meter                    Meter.tcl       {c tixMeter}}
+##done      {f OptionMenu               OptMenu.tcl     }
+##done      {f PopupMenu                PopMenu.tcl     }
+##          {f Select                   Select.tcl      }
+##          {f StdButtonBox             StdBBox.tcl     }
+##      }
 ##
 
 stypes = {}
 stypes['widget'] = ['Balloon', 'Button Box', 'Combo Box', 'Control',
                     'Directory List', 'Directory Tree',
-		    'Notebook', 'Option Menu', 'Popup Menu', 'Paned Window',
-		    'ScrolledHList (1)', 'ScrolledHList (2)', 'Tree (dynamic)']
+                    'Notebook', 'Option Menu', 'Popup Menu', 'Paned Window',
+                    'ScrolledHList (1)', 'ScrolledHList (2)', 'Tree (dynamic)']
 stypes['image'] = ['Compound Image']
 
 def MkSample(nb, name):
@@ -922,15 +922,15 @@ def MkSample(nb, name):
     view['command'] = lambda args=0, w=w,slb=slb,stext=stext,run=run,view=view: Sample_Action(w, slb, stext, run, view, 'view')
 
     for type in ['widget', 'image']:
-	if type != 'widget':
-	    x = Tix.Frame(slb.hlist, bd=2, height=2, width=150,
-			  relief=Tix.SUNKEN, bg=slb.hlist['bg'])
-	    slb.hlist.add_child(itemtype=Tix.WINDOW, window=x, state='disabled')
-	x = slb.hlist.add_child(itemtype=Tix.TEXT, state='disabled',
-				text=comments[type])
-	for key in stypes[type]:
-	    slb.hlist.add_child(x, itemtype=Tix.TEXT, data=key,
-				text=key)
+        if type != 'widget':
+            x = Tix.Frame(slb.hlist, bd=2, height=2, width=150,
+                          relief=Tix.SUNKEN, bg=slb.hlist['bg'])
+            slb.hlist.add_child(itemtype=Tix.WINDOW, window=x, state='disabled')
+        x = slb.hlist.add_child(itemtype=Tix.TEXT, state='disabled',
+                                text=comments[type])
+        for key in stypes[type]:
+            slb.hlist.add_child(x, itemtype=Tix.TEXT, data=key,
+                                text=key)
     slb.hlist.selection_clear()
 
     run['state'] = 'disabled'
@@ -942,11 +942,11 @@ def Sample_Action(w, slb, stext, run, view, action):
     hlist = slb.hlist
     anchor = hlist.info_anchor()
     if not anchor:
-	run['state'] = 'disabled'
-	view['state'] = 'disabled'
+        run['state'] = 'disabled'
+        view['state'] = 'disabled'
     elif not hlist.info_parent(anchor):
-	# a comment
-	return
+        # a comment
+        return
 
     run['state'] = 'normal'
     view['state'] = 'normal'
@@ -955,17 +955,17 @@ def Sample_Action(w, slb, stext, run, view, action):
     prog = samples[key]
 
     if action == 'run':
-	exec('import ' + prog)
-	w = Tix.Toplevel()
-	w.title(title)
-	rtn = eval(prog + '.RunSample')
-	rtn(w)
+        exec('import ' + prog)
+        w = Tix.Toplevel()
+        w.title(title)
+        rtn = eval(prog + '.RunSample')
+        rtn(w)
     elif action == 'view':
-	w = Tix.Toplevel()
-	w.title('Source view: ' + title)
-	LoadFile(w, demo.dir + '/samples/' + prog + '.py')
+        w = Tix.Toplevel()
+        w.title('Source view: ' + title)
+        LoadFile(w, demo.dir + '/samples/' + prog + '.py')
     elif action == 'browse':
-	ReadFile(stext.text, demo.dir + '/samples/' + prog + '.py')
+        ReadFile(stext.text, demo.dir + '/samples/' + prog + '.py')
 
 def LoadFile(w, fname):
     global root
@@ -989,16 +989,15 @@ def ReadFile(w, fname):
     w.delete('0.0', Tix.END)
 
     try:
-	f = open(fname)
-	lines = f.readlines()
-	for s in lines:
-	    w.insert(Tix.END, s)
-	f.close()
+        f = open(fname)
+        lines = f.readlines()
+        for s in lines:
+            w.insert(Tix.END, s)
+        f.close()
     finally:
-#	w.see('1.0')
-	w['state'] = old_state
+#       w.see('1.0')
+        w['state'] = old_state
 
 if __name__ == '__main__':
     root = Tix.Tk()
     RunMain(root)
-