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-rw-r--r--Master/tlpkg/tlperl/lib/auto/Tk/Scrollbar/ScrlByPages.al38
1 files changed, 38 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/auto/Tk/Scrollbar/ScrlByPages.al b/Master/tlpkg/tlperl/lib/auto/Tk/Scrollbar/ScrlByPages.al
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+++ b/Master/tlpkg/tlperl/lib/auto/Tk/Scrollbar/ScrlByPages.al
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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;