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#!/usr/local/bin/perl -w
use Tk;
use strict;
our($filename, $info);
my $mw = MainWindow->new;
# Create necessary widgets
my $f = $mw->Frame->pack(-side => 'top', -fill => 'x');
$f->Label(-text => "Filename:")->pack(-side => 'left', -anchor => 'w');
$f->Entry(-textvariable => \$filename)->
pack(-side => 'left', -anchor => 'w', -fill => 'x', -expand => 1);
$f->Button(-text => "Exit", -command => sub { exit; } )->
pack(-side => 'right');
$f->Button(-text => "Save", -command => \&save_file)->
pack(-side => 'right', -anchor => 'e');
$f->Button(-text => "Load", -command => \&load_file)->
pack(-side => 'right', -anchor => 'e');
$mw->Label(-textvariable => \$info, -relief => 'ridge')->
pack(-side => 'bottom', -fill => 'x');
my $t = $mw->Scrolled("Text")->pack(-side => 'bottom',
-fill => 'both', -expand => 1);
MainLoop;
sub load_file {
$info = "Loading file '$filename'...";
$t->delete("1.0", "end");
if (!open(FH, "$filename")) {
$t->insert("end", "ERROR: Could not open $filename\n");
return;
}
while (<FH>) {
$t->insert("end", $_);
}
close (FH);
$info = "File '$filename' loaded";
}
sub save_file {
$info = "Saving '$filename'";
open (FH, ">$filename");
print FH $t->get("1.0", "end");
$info = "Saved.";
}
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