| 1 | # NOTE: Derived from ../blib/lib/Tk/Scrollbar.pm. |
| 2 | # Changes made here will be lost when autosplit is run again. |
| 3 | # See AutoSplit.pm. |
| 4 | package Tk::Scrollbar; |
| 5 | |
| 6 | #line 333 "../blib/lib/Tk/Scrollbar.pm (autosplit into ../blib/lib/auto/Tk/Scrollbar/ScrlByPages.al)" |
| 7 | # tkScrlByPages -- |
| 8 | # This procedure tells the scrollbar's associated widget to scroll up |
| 9 | # or down by a given number of screenfuls. It notifies the associated |
| 10 | # widget in different ways for old and new command syntaxes. |
| 11 | # |
| 12 | # Arguments: |
| 13 | # w - The scrollbar widget. |
| 14 | # orient - Which kinds of scrollbars this applies to: "h" for |
| 15 | # horizontal, "v" for vertical, "hv" for both. |
| 16 | # amount - How many screens to scroll: typically 1 or -1. |
| 17 | |
| 18 | sub ScrlByPages |
| 19 | { |
| 20 | my $w = shift; |
| 21 | my $orient = shift; |
| 22 | my $amount = shift; |
| 23 | my $cmd = $w->cget('-command'); |
| 24 | return unless (defined $cmd); |
| 25 | return if (index($orient,substr($w->cget('-orient'),0,1)) < 0); |
| 26 | my @info = $w->get; |
| 27 | if (@info == 2) |
| 28 | { |
| 29 | $cmd->Call('scroll',$amount,'pages'); |
| 30 | } |
| 31 | else |
| 32 | { |
| 33 | $cmd->Call($info[2]+$amount*($info[1]-1)); |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | # end of Tk::Scrollbar::ScrlByPages |
| 38 | 1; |