Hello All....

It has been quite a while since I have played with perl, or visited the monestary. I just recently started playing with perl and perl/tk to display some thumbnails of images which I would like the user to be able to select by clicking on the images.

I was able to setup a callback to the button click or image click. So selection will not be an issue. However, I want it to be visible which images are selected. Since the call back is passed a ref to the widget, I thought I could either select a thick border or change the relief option to make it visible. These options when changed do not appear visualy. I suppose that the -image option must override these options. Any suggestions other than rewriting Tk::Thumbnail to add checkboxes??

Here is the code I have so far.

use Tk;
use Tk::Thumbnail;

## GLOBALS

my $mw;
my $thumb;

## Subroutines

sub thumb_cmd {
    my (    $widget, $filename, $is_bad, 
        $pix_width, $pix_height, $frames ) = @_;
    
    if ($is_bad) {
        print "IS INVALID IMAGE\n";
        return;
    }else{
        print "Valid Image.\n";    
        print "Thumbnail information:\n";
        print "\tFilename: [$filename]\n";
        print "\tWidth: $pix_width\n";
        print "\tHeight: $pix_height\n";
                ## I Tried adding code that modified
                ## options of $widget...
                ## ie... $widget->configure( -relief => 'raised' );
        return;
    }
}

sub init {
    my @img = ( <*.jpg>, <*.bmp> );
    
    $mw = MainWindow->new;
    $thumb = $mw->Thumbnail(  
                -images     => \@img,
                -ilabels    => 1,
                -iheight    => 75,
                -iwidth        => 75,
                -command    => \&thumb_cmd,
            )->pack;
}

## MAIN

init;

MainLoop;

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zzSPECTREz

In reply to Tk::Thumbnail --> callback help by zzspectrez

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