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# NOTE: Derived from ..\blib\lib\Tk\Listbox.pm.
# Changes made here will be lost when autosplit is run again.
# See AutoSplit.pm.
package Tk::Listbox;
#line 748 "..\blib\lib\Tk\Listbox.pm (autosplit into ..\blib\lib\auto\Tk\Listbox\ExtendUpDown.al)"
# ExtendUpDown --
#
# Does nothing unless we're in extended selection mode; in this
# case it moves the location cursor (active element) up or down by
# one element, and extends the selection to that point.
#
# Arguments:
# w - The listbox widget.
# amount - +1 to move down one item, -1 to move back one item.
sub ExtendUpDown
{
my $w = shift;
my $amount = shift;
if ($w->cget('-selectmode') ne 'extended')
{
return;
}
my $active = $w->index('active');
if (!@Selection)
{
$w->selectionSet($active);
@Selection = $w->curselection;
}
$w->activate($active + $amount);
$w->see('active');
$w->Motion($w->index('active'))
}
# end of Tk::Listbox::ExtendUpDown
1;
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