# here we create Widget package, used for both standard cases like
# 'Button', 'Label', and so on, and for all other widgets like Baloon
# TODO : document better and provide as public way of doing things?
my %created_w_packages; # (may be look in global stash %:: ?)
sub create_widget_package {
    my $widgetname = shift;
    _DEBUG(2, "AUTOCREATE widget $widgetname (@_)\n") if DEBUG;
    unless (exists $created_w_packages{$widgetname}) {
        _DEBUG(1, "c-PACKAGE $widgetname (@_)\n") if DEBUG;
	$created_w_packages{$widgetname} = {};
	die "not allowed widg name $widgetname" unless $widgetname=~/^\w+$/;
	# here we create Widget package
	my $package = $Tcl::Tk::VTEMP;
	$package =~ s/\[\[widget-repl\]\]/$widgetname/g;
	eval "$package";
	die $@ if $@;
	# Add this widget class to ptk_w_names so the AUTOLOADer properly
	# identifies it for creating class methods
	$widgetname = quotemeta($widgetname); # to prevent chars corrupting regexp
	$ptk_w_names .= "|$widgetname";
    }
}