#!/usr/bin/perl --
use strict;
use warnings;
use Tk;
use Data::Dump qw/ dd pp /;
my $mw = tkinit(qw/ -width 30 -height 30 /);
my $t = $mw->Text(-wrap=>'word')->pack(qw/ -expand 1 -fill both /);
$t->insert('end',
q{"There must be some kind of way out of here," Said the joker to the 
+thief. "There's too much confusion, I can't get no relief. Businessme
+n, they drink my wine, Plowmen dig my earth. None of them along the l
+ine Know what any of it is worth." "No reason to get excited," The th
+ief he kindly spoke. "There are many here among us Who feel that life
+ is but a joke. But you and I, we've been through that, And this is n
+ot our fate. So let us not talk falsely now, The hour is getting late
+." All along the watchtower, Princes kept the view, While all the wom
+en came and went -- Barefoot servants too. Outside in the cold distan
+ce, A wildcat did growl. Two riders were approaching, and The wind be
+gan to howl. http://www.reasontorock.com/tracks/watchtower.html});
# q{"There must be some kind of way out of here," Said the joker to th
+e thief.});


$t->tagConfigure('yellow', -background => "yellow");

my $b = $mw->Button(
    -text    => 'dlineinfo',
    -command => [
        sub {
            my( $mw, $t ) = @_;
            # ffd( $mw, $t, qw/ 1.20  1.12  12.30  15.28    22.16 24.2
+0 /);
            ffd( $mw, $t, qw/ 1.20 1.119 1.333 1.650 /); # 1.1000 to g
+et the last character
        },
        $mw,
        $t,
    ],
)->pack( -before => $t );
$b->focus;
#~ use Tk::WidgetDump; $mw->WidgetDump;
MainLoop();
sub ffff {
    my( $mw, $t ) = @_;
    my $geom = $mw->geometry;
    my( $trooty, $theight ) = ( $t->rooty, $t->height );
    my $ttaily = $trooty + $theight;
    "mw(geo{$geom}) trooty($trooty)+theight($theight)= $ttaily";
}
sub ffd {
    my( $mw, $t ) = splice @_,0,2;
    print "\n", ffff( $mw, $t ), "\n";
    for my $index( @_ ){
        $t->tagAdd('yellow', "$index wordstart", "$index wordend", );
        my @aline = qw/ lTx lTy wpx hpx bsT /;
        my @dline = $t->dlineinfo("$index wordstart");
        my $theword = $t->get( "$index wordstart", "$index wordend" );
        if( not @dline ){
            print "($index $theword) SKIP not visible\n";
            next;
        }
        printf "%-10s %-10s %5s %-5s %5s %-5s %5s %-5s %5s %-5s %5s %-
+5s\n",
            $index,
            $theword,
            map { $aline[$_], $dline[$_]     } 0 .. $#aline,
        ;;;;;
        
        my @bbLine = qw/ lTx lTy lTw lTh /;
        my( @bbLineStart )  = $t->bbox("$index linestart" );
        my( @bbLineEnd )    = $t->bbox("$index lineend" );
        # printf "%-10s %-10s %5s %-5s %5s %-5s %5s %-5s %5s %-5s %5s 
+%-5s\n",,
            # $index,
            # 'end',
            # ( map { $bbLine[$_], $bbLineEnd[$_]     } 0 .. $#bbLine,
+),
            # ('') x 2,
        # ;;;;;
        # printf "%-10s %-10s %5s %-5s %5s %-5s %5s %-5s %5s %-5s %5s 
+%-5s\n",
            # $index,
            # 'start',
            # ( map { $bbLine[$_], $bbLineEnd[$_]     } 0 .. $#bbLine,
+),
            # ('') x 2,
        # ;;;;;
        print "\n";
    }
#~     my $width = (200,400,600)[rand 2];
#~     $mw->geometry( $width."x$width");
}
__END__
[download]

1.20       kind         lTx 3       lTy 3       wpx 525     hpx 14    
+  bsT 11


1.119      relief       lTx 3       lTy 17      wpx 553     hpx 14    
+  bsT 11


1.333      feel         lTx 3       lTy 59      wpx 518     hpx 14    
+  bsT 11


1.650      riders       lTx 3       lTy 115     wpx 553     hpx 14    
+  bsT 11
[download]

I still can't get dlineinfo to work. It works in the code you posted, but in my own code, which does the same thing as far as I can tell, it only works if the index is 1.0. I have no idea what is going on.


use strict;
use warnings;

use Tk;

my $mw = Tk::MainWindow->new;
$mw->geometry('400x300');


my $tw = $mw->Text(-wrap=>'word')->pack(qw/ -expand 1 -fill both /);
$tw->insert('end',
q{"There must be some kind of way out of here," Said the joker to the 
+thief. "There's too much confusion, I can't get no relief. Businessme
+n, they drink my wine, Plowmen dig my earth. None of them along the l
+ine Know what any of it is worth." "No reason to get excited," The th
+ief he kindly spoke. "There are many here among us Who feel that life
+ is but a joke. But you and I, we've been through that, And this is n
+ot our fate. So let us not talk falsely now, The hour is getting late
+." All along the watchtower, Princes kept the view, While all the wom
+en came and went -- Barefoot servants too. Outside in the cold distan
+ce, A wildcat did growl. Two riders were approaching, and The wind be
+gan to howl. http://www.reasontorock.com/tracks/watchtower.html});


$tw->pack();


my @indexes = qw/ 1.0 1.11 1.20 /;

for my $index (@indexes) {
    my @dline = $tw->dlineinfo("$index wordstart");
    print "dline info for $index: " . join (' ', @dline) . "\n";
}



MainLoop;
[download]





dline info for 1.0: 3 3 7 1 11
dline info for 1.11:
dline info for 1.20:
[download]

This part response to Re^2: Query the height of Tk::Text widget with word wrap

Read more... (1224 Bytes)

This part response to Re^3: Query the height of Tk::Text widget with word wrap

I still can't get dlineinfo to work.

Remember how I (my program) had a button? Meaning you only (it only) call dlineinfo after MainLoop starts and draws everything on screen?

If the widgets (text ...) aren't drawn, dlineinfo can't return coordinates ... so if you want it to work in this program you need to draw the widget, you need $tw->update; before dlineinfo stuff

I used $tw->update; print "now its drawn, now it will be visible\n"; sleep 1;

The window can be located off-the-monitor while the initial drawing takes place :)  $mw->geometry('-1000-1000');