Perl/TK: enabling a disable menu item

chimni has asked for the wisdom of the Perl Monks concerning the following question:

Hi i have this menu and want to enable the disabled button later on. How do i go about t his.

my $sv_menu = $menubar->Menubutton(
    -text => "Sv",
    -activebackground => 'blue',
    -activeforeground => 'white',
    -tearoff => 0,
    -menuitems => [
        [
            Button => '~Conf',
            -command  => \&hello,
            -accelerator => '<Ctrl-c>'
        ],
        [
            Button => "~Utility",
            -command  => \&ello , 
            -accelerator => '<Ctrl-u>'
        ],
        ["separator" => " "],
    ]
)->pack(-side => 'left');
[download]

How do i go about enabling the edit menu in a subroutine in which i have checked that a file has been selected

As always ,ur input is appreciated
Regards,
chimni

edited: Wed Jul 30 13:58:20 2003 by jeffa - reformatted whitespace in code, removed opening pre tag

Comment on Perl/TK: enabling a disable menu item Download Code

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Re: Perl/TK: enabling a disable menu item by busunsl (Vicar) on Jul 30, 2003 at 06:29 UTC
Since there is no 'edit' button in your source, I assume you want to add it to the menu. To add a menuitem use the AddItems method of the menubutton like this: `$sv_menu->AddItems([command => 'Edit', -command => \&edit]);` [download]	[reply] [d/l]
Re: Perl/TK: enabling a disable menu item by bobn (Chaplain) on Jul 30, 2003 at 07:05 UTC
If the edit menu (which appears nowhere in your sample code, so we have to guess) is a separate Menubutton object ( as in `my $sv_menu2 = $menubar->Menubutton(yada yada)`, then you enable it with `$sv_menu2->configure(-state => 'normal')` and disable it with `$sv_menu2->configure(-state => 'disable')` --Bob Niederman, http://bob-n.com	[reply] [d/l] [select]
Re: Perl/TK: enabling a disable menu item by chimni (Pilgrim) on Jul 30, 2003 at 07:10 UTC
sorry posted the wrong menu code. Please refer to the following code. my $file_menu = $menubar->Menubutton(-text => "File", -activebackground => 'blue', -activeforeground => 'white', -tearoff => 0, -menuitems => [ [Button => '~Sele +ct', -command => \&select_file , -accelerator => '<Ctrl-s>'], [Button => "~Edit +",-state => 'disabled', -command => \&edit_file , -accelerator => '<Ctrl-e>' ], [Button => '~Gene +rate XML', -state => 'disabled',-command => \&gen_xml , -accel erator => '<Ctrl-x>'], ["separator" => " + "], [Button => "Exit +", -command => sub {exit 0;} , -accelerator => 'ESC'] ])->pack(-side => + 'left'); [download]	[reply] [d/l]
Re: Re: Perl/TK: enabling a disable menu item by bobn (Chaplain) on Jul 30, 2003 at 07:57 UTC
After staggering through Mastering Perl/Tk, I come up with this, which seems to work: `my $fm = $menubar->entrycget('File', -menu); # after creating the File Menubutton in the $menubar sub select_file { $fm->entryconfigure('Edit', -state=>'normal') }` [download] --Bob Niederman, http://bob-n.com	[reply] [d/l]
Re: Perl/TK: enabling a disable menu item by chimni (Pilgrim) on Jul 31, 2003 at 04:22 UTC
Hi people i ran the following code `my $fm = $menubar->entrycget('File', -menu); sub select_file { $fm->entryconfigure('Edit', - state=>'normal') }` [download] It gives me the error that entrycget.pm cannot be found in @INC.(Can't locate Tk/Frame/entrycget.pm) I searched for this module on google and on cpan. I cannot find it anywhere ??? Could anyone lead me to it thanks rajdeep	[reply] [d/l]