Please excuse my terminology.
I've been working on a cut down mock up of an app.
At it's core is a Tk front end which calls and receives input from other methods/subs.
It's this circularity that has been giving me grief. In particular, I'm passing the Tk object to subs that need it which feels wrong somehow.
How would other monks approach this?
#!/usr/bin/perl
# auto.pl
use strict;
use warnings;
use Auto::GUI;
use Auto::MakeArticle;
my $auto = Auto::GUI->new;
$auto->fire_up_front_end
or die;
package Auto::GUI;
use strict;
use warnings;
sub new {
my $class = shift;
my $self = {};
bless $self, $class;
return $self;
}
sub fire_up_front_end{
my $self = shift;
# display the gui
# later... a button will call MakeArticle
my $mk = Auto::MakeArticle->new;
$mk->make($self); # pass the GUI object (?)
}
sub msg {
# show progress/error messages
my $self = shift;
my $msg = shift;
print "$msg\n";
}
1;
package Auto::MakeArticle;
use strict;
use warnings;
sub new {
my $class = shift;
my $self = {};
bless $self, $class;
return $self;
}
sub make{
my $self = shift;
my $gui = shift; # GUI object
# do stuff to make page
my $msg = "message from MakePage";
$gui->msg($msg);
}
1;
The output is as expected:
---------- Capture Output ----------
> "C:\Perl\bin\perl.exe" auto.pl
message from MakePage
> Terminated with exit code 0.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.