# 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 333 "../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;