Re: Strange CList problem



Hi John,


Am Don, 2002-01-10 um 18.13 schrieb John McDermott:
It looks as though you've created a closure (which keeps the context of
the sub call).  Make the call to Edit_MP3_Tag a ref (put a \ in front of
the &) and that should fix it.

Okay, I've done it now the following way:

$list->signal_connect("select_row", \&Edit_MP3_Tag, $app, $mmusic);

and Edit_MP3_Tag starts the following way:

sub Edit_MP3_Tag {
  my ( $list, $app, $mmusic, $row, $column, $mouse_event ) = @_;
  return unless $mouse_event->{type} eq "2button_press";

But unfortunately, that still doesn't fix it :(

Do you have another idea, what's wrong here?

Thank you very much
  Christoph



--john


In my application, I'm using a CList, which is filled with several
columns. There's also a "modify" button, which is coded the following
way:

 $list->signal_connect(
                        "select_row", sub {
                           my ( $clist, $row, $column, $mouse_event ) = @_;
                           return unless $mouse_event->{type} eq "2button_press";
                           &Edit_MP3_Tag($app,$mmusic,$row,$clist);
                         }
                        );

The subrouting Edit_MP3_Tag should change one or more columns of the
selected row. In that subroutine, the column is updated the following
way:

$list->freeze();
$list->set_text($row,1,$song_id);
...
$list->set_foreground( $row, $color);
$list->thaw();

Everything works perfect at first sight. In the Edit_MP3_Tag subroutine
I can change the contents of the list and the changes are all displayed.
Perfect.

But now, when I modify a row, which I modified before, I do get in
Edit_MP3_Tag all the *former* contents of that row. And those contents
are different from what was displayed....

Has anybody got a clue, what's going one here?


-- 
John McDermott, Writer and Consultant
J-K International, Ltd.
V +1 505/377-6293  F +1 505/377-6313
jjm jkintl com
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-- 
Christoph Lorenz *** http://ChLorenz.home.pages.de/




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