Opening Files with a File Dialog : File Dialog « GUI « Perl

1. Perl
2. GUI
3. File Dialog

Opening Files with a File Dialog

 

#!/usr/bin/perl -w

use Tk;

use Tk::FileSelect;

$main = MainWindow->new();

$menubar = $main->Frame(-relief=>"raised",
                        -borderwidth=>2);

$filebutton = $menubar->Menubutton(-text=>"File",
                                   -underline => 0);  # F in File

$filemenu = $filebutton->Menu();

$filebutton->configure(-menu=>$filemenu);

$filemenu->command(-command => \&open_choice,
                   -label => "Open...",
                   -underline => 0); # O in Open

$filemenu->command(-command => \&dump_choice,
                   -label => "Dump",
                   -underline => 0); # D in Dump

$filemenu->separator();

$filemenu->command(-label => "Exit",
                   -command => \&exit_choice,
                   -underline => 1);  # "x" in Exit

$filebutton->pack(-side=>"left");

$menubar->pack(-side=>"top", -fill=>"x");

$text = $main->Scrolled('Text',
                        -relief      => "sunken",
                        -borderwidth => 2,
                        -setgrid     => "true",
                        -scrollbars  => 'se' );

$text->pack(-side=>"top", 
            -expand => 1,
            -fill => 'both');

$file_dialog = $main->FileSelect(-directory => ".");

MainLoop();

sub exit_choice {
    print "You chose the Exit choice!\n";
    exit;
}

sub open_choice {
    $filename = $file_dialog->Show();
    
    if ($filename ne "" ) {
        open (FILE, $filename);
        $text->delete("1.0", "end");
        while ($txt = <FILE>) {
            $text->insert("end", $txt);
        }
        close(FILE);
    }
}

sub dump_choice {
    print $text->get("1.0", "end");
}

   
  

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