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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 552 "..\blib\lib\Tk\Listbox.pm (autosplit into ..\blib\lib\auto\Tk\Listbox\Motion.al)"
# Motion --
#
# This procedure is called to process mouse motion events while
# button 1 is down. It may move or extend the selection, depending
# on the listbox's selection mode.
#
# Arguments:
# w - The listbox widget.
# el - The element under the pointer (must be a number).
sub Motion
{
my $w = shift;
my $el = shift;
if (defined($Prev) && $el == $Prev)
{
return;
}
my $anchor = $w->index('anchor');
my $mode = $w->cget('-selectmode');
if ($mode eq 'browse')
{
$w->selectionClear(0,'end');
$w->selectionSet($el);
$Prev = $el;
$w->eventGenerate("<<ListboxSelect>>");
}
elsif ($mode eq 'extended')
{
my $i = $Prev;
if (!defined $i || $i eq '')
{
$i = $el;
$w->selectionSet($el);
}
if ($w->selectionIncludes('anchor'))
{
$w->selectionClear($i,$el);
$w->selectionSet('anchor',$el)
}
else
{
$w->selectionClear($i,$el);
$w->selectionClear('anchor',$el)
}
if (!@Selection)
{
@Selection = $w->curselection;
}
while ($i < $el && $i < $anchor)
{
if (Tk::lsearch(\@Selection,$i) >= 0)
{
$w->selectionSet($i)
}
$i++
}
while ($i > $el && $i > $anchor)
{
if (Tk::lsearch(\@Selection,$i) >= 0)
{
$w->selectionSet($i)
}
$i--
}
$Prev = $el;
$w->eventGenerate("<<ListboxSelect>>");
}
}
# end of Tk::Listbox::Motion
1;
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