Index: lib/Curses/UI.pm
===================================================================
RCS file: /u/rse/wrk/cui/cvs/cui/lib/Curses/UI.pm,v
retrieving revision 1.1.1.1
diff -u -d -u -d -r1.1.1.1 UI.pm
--- lib/Curses/UI.pm	2002/11/20 15:00:33	1.1.1.1
+++ lib/Curses/UI.pm	2002/11/20 15:12:54
@@ -65,6 +65,7 @@
         -cursor_mode   => 0,     # What is the current cursor_mode?
 	-debug         => undef, # Turn on debugging mode?
 	-language      => undef, # Which language to use?
+        -overlapping   => 1,     # Whether overlapping widgets are supported
 
         %userargs,
 
@@ -118,6 +119,7 @@
 sub clear_on_exit(;$) { shift()->accessor('-clear_on_exit',   shift()) }
 sub cursor_mode(;$)   { shift()->accessor('-cursor_mode',     shift()) }
 sub lang(;$)          { shift()->accessor('-language_object', shift()) }
+sub overlapping(;$)   { shift()->accessor('-overlapping',     shift()) }
 
 # TODO: document
 sub debug(;$)         
Index: lib/Curses/UI/Widget.pm
===================================================================
RCS file: /u/rse/wrk/cui/cvs/cui/lib/Curses/UI/Widget.pm,v
retrieving revision 1.1.1.1
diff -u -d -u -d -r1.1.1.1 Widget.pm
--- lib/Curses/UI/Widget.pm	2002/11/20 15:00:33	1.1.1.1
+++ lib/Curses/UI/Widget.pm	2002/11/20 15:41:37
@@ -460,7 +460,7 @@
     my $parent = $this->parent;
     $parent->focus($this) if defined $parent;
 
-    $this->draw(1);
+    $this->draw(1) if ($this->root->overlapping);
     return $this;
 }
 
@@ -943,6 +943,8 @@
     my $show_cursor = $this->{-nocursor} ? 0 : 1;
     $this->root->cursor_mode($show_cursor);
 
+    $this->draw(1) if (not $this->root->overlapping);
+
     return $this;
 }
 
@@ -951,6 +953,7 @@
     my $this = shift;
     $this->{-focus} = 0;
     $this->run_event('-onblur');
+    $this->draw(1) if (not $this->root->overlapping);
     return $this;
 }