Re: How to popup a widget such as “entry” or “label” at the mouse location

[zentara]

To amplify on what AnonymousMonk said about it requiring a Toplevel window to display an arbitrary widget ( other than a Menu ), your best hack is to try and use an overrideredirect window. Here is a simple example, and you will need to work out the details of the enter/leave bindings for your Tree. It helps that bind sends the the calling widget as the first element of @_.

#!/usr/bin/perl
use warnings;
use Tk;
use strict;

my $main = new MainWindow;
$main->geometry('200x200');

$main->Button(-text=>"click",-command=>sub{
          print "Button left click\n";
         })->pack;
   

$main->bind('<ButtonPress-3>', \&some_sub);
   
MainLoop;
   
sub some_sub{

print "@_\n";
my $widget = shift;

my $x = $widget->pointerx;
my $y = $widget->pointery;

my $mw_bdw = 2;  #mainwindow border width
### Create a Mainwindow ###
my $top = new MainWindow(-borderwidth=>$mw_bdw,
                          -relief=>'ridge',
                          -bg => "#0000FF");

$top->geometry("150x100+$x+$y"); # displaying at top left on any resol
+ution
$top->overrideredirect(1); # Remove window decorations and keep on all
+ screens
### create a text widget ###
my $imstr = "THIS IS A TEST NOTIFICTION LONG ENOUGH TO WRAP";
my $TEXT = $top->Text(
                       -foreground=> 'white',
                       -background=> '#0000FF',
                       -wrap => 'word',
                       -height => 7,
                       -width => 50)->pack;

$TEXT->insert('end', "$imstr", );

#$top-> after(5000, \&exitprg); # autoclose in 5000 milisecs
$top->bind('<ButtonRelease>',sub{$top->destroy}); #or sub exitprg

MainLoop; 

#### FUNCTIONS ####
sub exitprg {
my $top = shift;
print STDERR "CALLED EXIT\n";
$top-> destroy; # to kill the window and exit from prog
}

}