To all,

I'm currently developing a TK GUI which is dynamically created based upon specifications within a number of XML files. Part of the GUI builds up a list consisting of a picture, a label and a button. The call back (command) for each of the buttons is the same however I need to be able to work out which exact button was pressed in order to alter the correct picture.

The code below will add a number of button widgets onto a frame. Note that each button has the same call back 'print_button_label'. What I would like the code to do is print out the label associated with the button.

Also "->pack( -side => 'left', -anchor => 'w' )" doesn't seem to work within a 'Scrolled' widget?

I've done similar things in VB before by working out the currently selected widget and then reading a specific attribute of the widget object.

Any ideas?

Thanks in advance for any help provided,
Butch.

#!perl -w

use strict;
use warnings;

use Cwd;
use Tk 804;
require Tk::Pane;

# Buttons to be loaded onto the GUI
my @buttons;
$buttons[0] = "Button1";
$buttons[1] = "Button2";
$buttons[2] = "Button3";

# Create the main GUI
my $MW = MainWindow->new();
$MW->title("Generic GUI creation list demo");

# Create a frame to hold all of the buttons
my $master_frame = $MW->Frame(
    -borderwidth => 2,
    -relief      => 'solid'
  )->pack(
    -side   => 'top',
    -expand => 0,
    -anchor => 'w'
  );

# Create a scrolled pane within the frame
my $master_pane = $master_frame->Scrolled(
    'Pane',
    -height     => 100,
    -width      => 1000,
    -scrollbars => 'osoe',
  )->pack(
    -side   => 'top',
    -anchor => 'w'
  );

# Add the list of pictures to the frame
foreach my $button ( @buttons ) {

    # Create a frame for the widgets
    my $frame = $master_pane->Frame->pack(
        -side   => 'top',
        -expand => 1,
        -fill   => 'both',
        -anchor => 'w',
        -padx   => 2,
        - pady  => 4
    );

    # Add a label widget
    $frame->Label(
        -anchor  => 'nw',
        -justify => 'right',
        -relief  => 'groove',
        -text    => $button,
        -width   => 20,
        -height  => 1
    )->pack( -side => 'left', -anchor => 'w' );

    # Add a button widget
    $frame->Button(
        -anchor  => 'nw',
        -text    => "change " . $button,
        -command => 'main::print_button_label'
    )->pack( -side => 'left', -anchor => 'w', -padx => 2 );
}

# Run the GUI
MainLoop;

sub print_button_label

    # This operation is responsible for determining which
    # button was pressed and then printing the label 
    # assocaited with the button
{
    
    # Print out the label assocated with this button    
    #
    # I can't work out how to do this!!
    #
    print "????\n";
    
}
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