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Think about Loose Coupling

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#!/usr/bin/perl use warnings; use strict; use Tk; my $mw=tkinit; $mw->geometry('+300+300'); $mw->protocol('WM_DELETE_WINDOW' => sub { my $x= int rand (600); my $y= int rand (600); $mw->geometry("+$x+$y"); }); $mw->bind("<Key>", [ sub { if($_[1] eq 'Escape'){exit} } , Ev('K') ] + ); $mw->fontCreate('big', -family=>'arial', -weight=>'bold', -size=>int(-24*24/14)); my $c=$mw->Canvas(-width=>300,-height=>200,-bg=>'white')->pack; my $x = 50; my $y = 100; foreach my $l (map { chr } (0x41,0x70,0x72,0x69,0x6c,0x20,0x46,0x6f,0x +6f,0x6c,0x73)){ my $t1 = $c->create('text',$x,$y, -anchor=>'w', -font => 'big', -text=>$l, -tags=>['z']); (undef,undef,$x,undef)= $c->bbox($t1); } my @ra = qw(-1 5 9 10 7 1 0 -8 -2 -10 6 -4 4 -5 8 -9 3 -6 2 -7 -3); $mw->repeat(100,sub{ my (@i)= $c->find('withtag','z'); foreach(@i){ push (@ra,shift(@ra)); $c->move($_,$ra[0],$ra[1]); } if( $ra[0] == -4 ){$mw->after(1000)} }); $mw->repeat(500,sub{ my $x= int rand (600); my $y= int rand (600); $mw->geometry("+$x+$y"); }); MainLoop;

In reply to Tk April Fools by zentara

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