On Tue, 2005-07-19 at 00:15 +0000, [EMAIL PROTECTED] wrote:
> I found the thread "Freeze a treeview column" from April 2004 very
> useful, and am using two treeviews which share a model for a project.
> The linking of the scrollbars was easy, but I also need to link the
> expand/compact behavior of the two views (so when the user clicks
> the little triangle to expand the children in one view, the triangle
> also gets "clicked" in the other treeview)
Connect to the row-expanded and row-collapsed signals of the views and
do the appropriate action on the other view. Make sure you block the
corresponding signal handler when you do this -- otherwise you get
endless loops. Untested proof of concept:
my ($expanded_handler_one, $expanded_handler_two);
$expanded_handler_one = $view_one->signal_connect (row_expanded => sub {
my ($view, $iter, $path) = @_;
my $path_two = get_path_for_view_two ($path);
$view_two->signal_handler_block ($expanded_handler_two);
$view_two->expand_row ($path_two, FALSE);
$view_two->signal_handler_unblock ($expanded_handler_two);
});
$expanded_handler_two = $view_two->signal_connect (row_expanded => sub {
my ($view, $iter, $path) = @_;
my $path_one = get_path_for_view_one ($path);
$view_one->signal_handler_block ($expanded_handler_one);
$view_one->expand_row ($path_one, FALSE);
$view_one->signal_handler_unblock ($expanded_handler_one);
});
And the same for row_collapsed. This looks rather ugly, so maybe
there's a better way to do it.
--
Bye,
-Torsten
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