use Tk;

my $mw=new MainWindow;

my $item_width=15;

my %attr_item=('-background'=>'#ffafaf');
my %attr_btn=('-background'=>'#afffaf','-activebackground'=>'#7aaa7a');

my $text=$mw->Scrolled('Text',
	-insertontime=>0,
	-scrollbars=>'e',
	-width=>($item_width+15),
	-background=>'#efefef'
	)->pack;

my $first=1;

$text->tagConfigure('item',%attr_item);

foreach my $item ("State" , "Dependency", "CalcTime", "Result")
{
	my $btn=$text->Checkbutton(%attr_item,'-activebackground'=>'#ff7f7f');
	my $up=$text->Button(-text=>'Up',%attr_btn);
	my $down=$text->Button(-text=>'Down',%attr_btn);

	$text->insert('1.0',"\n") unless $first; $first=0;
	
	$text->windowCreate('1.0',-window=>$up);
	$text->windowCreate('1.0',-window=>$down);
	$text->windowCreate('1.0',-window=>$btn);
	$text->insert('1.0',sprintf('%-'.$item_width.'s',$item));
	$text->tagAdd('item','1.0',"1.$item_width");
	
}

MainLoop;