diff options
Diffstat (limited to 'Master/tlpkg/tlperl0/lib/auto/Tk/Listbox/ExtendUpDown.al')
-rwxr-xr-x | Master/tlpkg/tlperl0/lib/auto/Tk/Listbox/ExtendUpDown.al | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl0/lib/auto/Tk/Listbox/ExtendUpDown.al b/Master/tlpkg/tlperl0/lib/auto/Tk/Listbox/ExtendUpDown.al new file mode 100755 index 00000000000..9b72250ea41 --- /dev/null +++ b/Master/tlpkg/tlperl0/lib/auto/Tk/Listbox/ExtendUpDown.al @@ -0,0 +1,36 @@ +# 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 748 "..\blib\lib\Tk\Listbox.pm (autosplit into ..\blib\lib\auto\Tk\Listbox\ExtendUpDown.al)" +# ExtendUpDown -- +# +# Does nothing unless we're in extended selection mode; in this +# case it moves the location cursor (active element) up or down by +# one element, and extends the selection to that point. +# +# Arguments: +# w - The listbox widget. +# amount - +1 to move down one item, -1 to move back one item. +sub ExtendUpDown +{ + my $w = shift; + my $amount = shift; + if ($w->cget('-selectmode') ne 'extended') + { + return; + } + my $active = $w->index('active'); + if (!@Selection) + { + $w->selectionSet($active); + @Selection = $w->curselection; + } + $w->activate($active + $amount); + $w->see('active'); + $w->Motion($w->index('active')) +} + +# end of Tk::Listbox::ExtendUpDown +1; |