I want to have a widget (text window) that will show the progress of a running script. I can build the widget, but the text that I want installed line-by-line will not show up in the window until the entire process is complete.

Please help me to figure out what I am doing wrong in inserting the text into the text widget. What I get is the total output at once and what I want is a line-by-line insert into the widget window. Here is an example of what I am doing.

---------------------------- 

#!/usr/local/bin/perl
use Tk;

my $submain = MainWindow->new();
$status = $submain->Button(-text => 'Click to Clear',
                   -command => sub {$submain->destroy;}
                    );
$status->pack;

$text1 = $submain->Text ('-width'=>100, 'height'=>20);
$text1->pack(-side => 'left', -fill => 'y');

$text1->insert('end', "start\n");
$text1->pack;

for(my $loop=0; $loop <= 3; $loop++ )
   {   
   sleep 1;  
   print "$loop\n";
            
   if    ( $loop == 1 ) { $line = "$loop case 1\n"; }
   elsif ( $loop == 2 ) { $line = "$loop case 2\n"; }
   else         { $line = "$loop something else\n"; }
            
   $text1->insert('end', "$line");
   $text1->pack;
   }

MainLoop();

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In reply to Refresh text widget by MadMax

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