#!/usr/bin/perl -w
# 2004 (c) by Marcus Thiesen (marcus@thiesen.org)
# This file is a part of Curses::UI and might be distributed 
# under the same terms as perl itself.
# Use the libraries from the distribution, instead of 
# system wide libraries.
use FindBin;
use lib "$FindBin::RealBin/../lib";
use strict;
use Curses::UI;
$Curses::UI::debug = 0;
my $cui = new Curses::UI( -color_support => 1 );
my $win1 = $cui->add(
                     'win1', 'Window',
                     -border => 1,
                     -y    => 1,
                     -bfg  => 'red',
                     );
$win1->add("d1", "TextEntry", 
              -border => 0,
              -fg => "green",
              -x => 2 ,
              -y => 1 ,
              -width => 5,
              -text => "A",
              -focusable => 0,
              -readonly => 1,);
my $ent1 = $win1->add("ent1", "TextEntry", 
                      -border => 1,
                      -bfg => "green",
                      -x => 10 ,
                      -width => 10);
$win1->add("d2", "TextEntry", 
              -border => 0,
              -fg => "blue",
              -x => 2 ,
              -y => 4 ,
              -width => 5,
              -text => "B",
              -focusable => 0,
              -readonly => 1,);
my $ent2 = $win1->add("ent2", "TextEntry", 
                      -border => 1, 
                      -bfg => "blue",
                      -y => 3, 
                      -x => 10,  
                      -width => 10);
$win1->add("d3", "TextEntry", 
              -border => 0,
              -fg => "red",
              -x => 2 ,
              -y => 11 ,
              -width => 5,
              -text => "C",
              -focusable => 0,
              -readonly => 1,);
my $ent3 = $win1->add("ent3", "TextEntry",
                      -border => 1,
                      -bfg => "red",
                      -y => 10,
                      -x => 10 ,
                      -width => 10,
                      -readonly => 1,
                      -focusable => 0,
                      ) ;
my $but1 = $win1->add("addbutton", "Buttonbox" ,
           -buttons => [ { -label => "< ADD >",
                           -onpress => \&add } ] ,
                      -y => 15, -x => 5
           );
sub add {
    if (($ent1->get() =~ /[\d.]+/) &&
        ($ent2->get() =~ /[\d.]+/)) {
        $ent3->text($ent1->get() + $ent2->get());
    } else {
        $cui->error("You have to enter a number in A and B");
    }
}
$cui->set_binding( sub {exit 0;}, "q");
$cui->mainloop;