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# NOTE: Derived from ..\blib\lib\Tk\Scrollbar.pm.
# Changes made here will be lost when autosplit is run again.
# See AutoSplit.pm.
package Tk::Scrollbar;
#line 346 "..\blib\lib\Tk\Scrollbar.pm (autosplit into ..\blib\lib\auto\Tk\Scrollbar\ScrlByPages.al)"
# tkScrlByPages --
# This procedure tells the scrollbar's associated widget to scroll up
# or down by a given number of screenfuls. It notifies the associated
# widget in different ways for old and new command syntaxes.
#
# Arguments:
# w - The scrollbar widget.
# orient - Which kinds of scrollbars this applies to: "h" for
# horizontal, "v" for vertical, "hv" for both.
# amount - How many screens to scroll: typically 1 or -1.
sub ScrlByPages
{
my $w = shift;
my $orient = shift;
my $amount = shift;
my $cmd = $w->cget('-command');
return unless (defined $cmd);
return if (index($orient,substr($w->cget('-orient'),0,1)) < 0);
my @info = $w->get;
if (@info == 2)
{
$cmd->Call('scroll',$amount,'pages');
}
else
{
$cmd->Call($info[2]+$amount*($info[1]-1));
}
}
# end of Tk::Scrollbar::ScrlByPages
1;
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