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# 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 374 "..\blib\lib\Tk\Listbox.pm (autosplit into ..\blib\lib\auto\Tk\Listbox\SPLICE.al)"
# SPLICE
# ------
# Performs equivalent of splice on the listbox contents
sub SPLICE {
my $class = shift;
my $self = ${$class->{OBJECT}};
# check for arguments
my @elements;
if ( scalar(@_) == 0 ) {
# none
@elements = $self->get(0,'end');
$self->delete(0,'end');
return wantarray ? @elements : $elements[scalar(@elements)-1];;
} elsif ( scalar(@_) == 1 ) {
# $offset
my ( $offset ) = @_;
if ( $offset < 0 ) {
my $start = $self->size() + $offset;
if ( $start > 0 ) {
@elements = $self->get($start,'end');
$self->delete($start,'end');
return wantarray ? @elements : $elements[scalar(@elements)-1];
} else {
return undef;
}
} else {
@elements = $self->get($offset,'end');
$self->delete($offset,'end');
return wantarray ? @elements : $elements[scalar(@elements)-1];
}
} elsif ( scalar(@_) == 2 ) {
# $offset and $length
my ( $offset, $length ) = @_;
if ( $offset < 0 ) {
my $start = $self->size() + $offset;
my $end = $self->size() + $offset + $length - 1;
if ( $start > 0 ) {
@elements = $self->get($start,$end);
$self->delete($start,$end);
return wantarray ? @elements : $elements[scalar(@elements)-1];
} else {
return undef;
}
} else {
@elements = $self->get($offset,$offset+$length-1);
$self->delete($offset,$offset+$length-1);
return wantarray ? @elements : $elements[scalar(@elements)-1];
}
} else {
# $offset, $length and @list
my ( $offset, $length, @list ) = @_;
if ( $offset < 0 ) {
my $start = $self->size() + $offset;
my $end = $self->size() + $offset + $length - 1;
if ( $start > 0 ) {
@elements = $self->get($start,$end);
$self->delete($start,$end);
$self->insert($start,@list);
return wantarray ? @elements : $elements[scalar(@elements)-1];
} else {
return undef;
}
} else {
@elements = $self->get($offset,$offset+$length-1);
$self->delete($offset,$offset+$length-1);
$self->insert($offset,@list);
return wantarray ? @elements : $elements[scalar(@elements)-1];
}
}
}
# end of Tk::Listbox::SPLICE
1;
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