# -*-Perl-*-

# dumb spacer
# instances allowed: multiple

package MGMmodule::spacer;
use Tk;
use vars qw($stack);

# called once to initialize the module.  The xpath here is a Class.
sub module_init{
    my$this=shift;
    my$toplevel=$this->{"toplevel"};
    my$xclass=$this->{"xclass"};
    $toplevel->optionAdd("$xclass.order",               '99,199',20);
    $stack=$toplevel->optionGet("stack","");
    $this;
}

# called to build an instance.  The xpath here is a name path.
sub module_instance{
    my$this=shift;
    my$widget=$this->{"widget"};
    my$toplevel=$this->{"toplevel"};
    my$xpath=$this->{"xpath"};

    $toplevel->optionAdd("$xpath.relief", 'sunken' ,21);
    $toplevel->optionAdd("$xpath.background",'#27536c' ,21);
    $toplevel->optionAdd("$xpath.borderwidth", 1 ,21);
    $toplevel->optionAdd("$xpath.thickness", 1 ,21);
    $toplevel->optionAdd("$xpath.scalewidadj", 20,21);
    $toplevel->optionAdd("$xpath.scalelenadj", 50,21);
    $toplevel->optionAdd("$xpath.scalejustify", 0,20);  #centered    

    $toplevel->optionAdd("$xpath.minx", 10,21);      # safe
    $toplevel->optionAdd("$xpath.miny", 10,21);      # safe

    $this->{"relief"}=$widget->optionGet("relief",'');
    my$border=$this->{"border"}=$widget->optionGet("borderwidth",'');
    my$thick=$this->{"thick"}=$widget->optionGet("thickness",'');

    $toplevel->optionAdd("$xpath.minx", $border*2+$thick,21);      # safe
    $toplevel->optionAdd("$xpath.miny", $border*2+$thick,21);      # safe



    $this;
}

sub module_run{
    my$this=shift;

    my$width=$this->{"width"};
    my$height=$this->{"height"};
    my$toplevel=$this->{"toplevel"};

    my$border=$this->{"border"};
    my$thick=$this->{"thick"};

    my$mainback=$toplevel->optionGet("background","");

    my$widget=$toplevel->Frame(-class=>$this->{"name"},
			       Name=>$this->{"sequence"},
			       -width=>$width,
			       -height=>$height,
			       -borderwidth=>0,
			       -highlightthickness=>0,
			       -background=>$mainback);

    my$back=$widget->optionGet("background","");

    if($stack eq 'vertical'){
	my$pad=($height-$thick-$border*2)/2;
	$widget->Frame(-highlightthickness=>0,
		       -borderwidth=>$border,
		       -relief=>$this->{"relief"},
		       -width=>$width,
		       -height=>$border*2+$thick,
		       -background=>$back)->place('-x'=>0,'-y'=>$pad,
						 -anchor=>'nw');
    }else{
	my$pad=($width-$thick-$border*2)/2;
	$widget->Frame(-highlightthickness=>0,
		       -borderwidth=>$border,
		       -relief=>$this->{"relief"},
		       -width=>$border*2+$thick,
		       -height=>$height,
		       -background=>$back)->place('-x'=>$pad,'-y'=>0,
						 -anchor=>'nw');
    }
    $widget;
}

bless {};