/usr/share/perl5/Wx/Perl/DataWalker/CurrentLevel.pm is in libwx-perl-datawalker-perl 0.02-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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use 5.008001;
use strict;
use warnings;
use Scalar::Util qw(blessed reftype weaken);
use Wx;
our $VERSION = '0.01';
our @ISA = qw(Wx::ListCtrl);
use constant {
DISPLAY_UNINITIALIZED => 0,
DISPLAY_SCALAR => 1,
DISPLAY_ARRAY => 2,
DISPLAY_HASH => 3,
DISPLAY_GLOB => 4,
};
use constant GLOB_THINGS => [qw(NAME PACKAGE SCALAR ARRAY HASH CODE IO GLOB FORMAT)];
use Class::XSAccessor
getters => {
parent => 'parent',
},
accessors => {
show_size => 'show_size',
show_recur_size => 'show_recur_size',
};
require overload;
sub new {
my $class = shift;
my ($parent, $id, $pos, $size) = @_;
my $self = $class->SUPER::new(
$parent, $id, $pos||Wx::wxDefaultPosition, $size||Wx::wxDefaultSize, Wx::wxLC_REPORT|Wx::wxLC_VIRTUAL
);
$self->{parent} = $parent;
weaken($self->{parent});
# Double-click a function name
Wx::Event::EVT_LIST_ITEM_ACTIVATED( $self, $self,
sub {
$self->on_list_item_activated($_[1]);
}
);
my $imglist = $self->get_icon_list();
$self->AssignImageList($imglist, Wx::wxIMAGE_LIST_SMALL);
$self->{show_size} = 0;
$self->{show_recur_size} = 0;
$self->{display_mode} = DISPLAY_UNINITIALIZED;
$self->set_data('');
return $self;
}
sub refresh {
my $self = shift;
$self->set_data($self->{data});
}
sub set_data {
my $self = shift;
my $data = shift;
my $reftype = reftype($data);
return() if defined $reftype and $reftype eq 'CODE';
$self->{data} = $data;
delete $self->{hash_cache};
if (!$reftype) {
$self->_set_scalar();
}
elsif ($reftype eq 'HASH') {
$self->_set_hash();
}
elsif ($reftype eq 'ARRAY') {
$self->_set_array();
}
elsif ($reftype eq 'GLOB') {
$self->_set_glob();
}
else {
$self->_set_scalar();
}
$self->_set_width;
return(1);
}
#####################################
# display methods
sub OnGetItemText {
my $self = shift;
my $itemno = shift;
my $colno = shift;
my $data = $self->{data};
if ($self->{display_mode} == DISPLAY_SCALAR) {
$colno == 0 and return reftype($data)||'';
$colno == 1 and return blessed($data)||'';
$colno == 2 and $self->show_size() and return $self->calc_size($$data);
return defined($$data) ? overload::StrVal($$data) : 'undef';
}
elsif ($self->{display_mode} == DISPLAY_ARRAY) {
$colno == 0 and return $itemno;
my $item = $data->[$itemno];
$colno == 1 and return reftype($item)||'';
$colno == 2 and return blessed($item)||'';
$colno == 3 and $self->show_size() and return $self->calc_size($item);
return defined($item) ? overload::StrVal($item) : 'undef';
}
elsif ($self->{display_mode} == DISPLAY_HASH) {
my $key = $self->{hash_cache}[$itemno];
$colno == 0 and return $key;
my $item = $data->{$key};
$colno == 1 and return reftype($item)||'';
$colno == 2 and return blessed($item)||'';
$colno == 3 and $self->show_size() and return $self->calc_size($item);
return defined($item) ? overload::StrVal($item) : 'undef';
}
elsif ($self->{display_mode} == DISPLAY_GLOB) {
$colno == 0 and return GLOB_THINGS->[$itemno];
my $item = *{$data}{GLOB_THINGS->[$itemno]};
$colno == 1 and return reftype($item)||'';
$colno == 2 and return blessed($item)||'';
$colno == 3 and $self->show_size() and return $self->calc_size($item);
return defined($item) ? overload::StrVal($item) : 'undef';
}
}
{
# this is an optimization explicitly allowed according to the wx docs.
my $undef_attr = Wx::ListItemAttr->new();
$undef_attr->SetTextColour(Wx::Colour->new("gray"));
sub OnGetItemAttr {
my $self = shift;
my $itemno = shift;
my $data = $self->{data};
# colour the undef's gray!
if ($self->{display_mode} == DISPLAY_SCALAR) {
return defined($$data) ? undef : $undef_attr;
}
elsif ($self->{display_mode} == DISPLAY_ARRAY) {
my $item = $data->[$itemno];
return defined($item) ? undef : $undef_attr;
}
elsif ($self->{display_mode} == DISPLAY_HASH) {
my $key = $self->{hash_cache}[$itemno];
my $item = $data->{$key};
return defined($item) ? undef : $undef_attr;
}
elsif ($self->{display_mode} == DISPLAY_GLOB) {
my $item = *{$data}{GLOB_THINGS->[$itemno]};
return defined($item) ? undef : $undef_attr;
}
}
}
sub OnGetItemImage {
my $self = shift;
my $itemno = shift;
my $data = $self->{data};
if ($self->{display_mode} == DISPLAY_SCALAR) {
return $self->ref_to_icon(reftype($$data));
}
elsif ($self->{display_mode} == DISPLAY_ARRAY) {
my $item = $data->[$itemno];
return $self->ref_to_icon(reftype($item));
}
elsif ($self->{display_mode} == DISPLAY_HASH) {
my $key = $self->{hash_cache}[$itemno];
my $item = $data->{$key};
return $self->ref_to_icon(reftype($item));
}
elsif ($self->{display_mode} == DISPLAY_GLOB) {
my $item = *{$data}{GLOB_THINGS->[$itemno]};
return $self->ref_to_icon(reftype($item));
}
return(-1);
}
sub calc_size {
my $self = shift;
my $data = shift;
return(
$self->show_recur_size() ? Devel::Size::total_size(\$data) : Devel::Size::size($data)
);
}
######################
# setup the display data type
sub _set_scalar {
my $self = shift;
$self->{display_mode} = DISPLAY_SCALAR;
$self->ClearAll();
$self->SetItemCount(1);
# reverse insert for extensibility
$self->InsertColumn(0, "Value");
$self->InsertColumn(0, "Size") if $self->show_size();
$self->InsertColumn(0, "Class");
$self->InsertColumn(0, "RefType");
return();
}
sub _set_hash {
my $self = shift;
$self->{display_mode} = DISPLAY_HASH;
$self->ClearAll();
$self->SetItemCount(scalar keys %{$self->{data}});
$self->{hash_cache} = [sort keys %{$self->{data}}];
$self->InsertColumn(0, "Value");
$self->InsertColumn(0, "Size") if $self->show_size();
$self->InsertColumn(0, "Class");
$self->InsertColumn(0, "RefType");
$self->InsertColumn(0, "Key");
return();
}
sub _set_array {
my $self = shift;
$self->{display_mode} = DISPLAY_ARRAY;
$self->ClearAll();
$self->SetItemCount(scalar @{$self->{data}});
$self->InsertColumn(0, "Value");
$self->InsertColumn(0, "Size") if $self->show_size();
$self->InsertColumn(0, "Class");
$self->InsertColumn(0, "RefType");
$self->InsertColumn(0, "Index");
return();
}
sub _set_glob {
my $self = shift;
$self->{display_mode} = DISPLAY_GLOB;
$self->ClearAll();
$self->SetItemCount(scalar @{GLOB_THINGS()});
$self->InsertColumn(0, "Value");
$self->InsertColumn(0, "Size") if $self->show_size();
$self->InsertColumn(0, "Class");
$self->InsertColumn(0, "RefType");
$self->InsertColumn(0, "THING");
return();
}
sub _set_width {
my $self = shift;
# Can't work in virtual mode...
# foreach my $col (0..$cols-1) {
# $self->SetColumnWidth( $col, Wx::wxLIST_AUTOSIZE );
# $self->SetColumnWidth( $col, 70 ) if $self->GetColumnWidth( $col ) < 70;
# }
my $widths;
my $size = $self->show_size();
for ($self->{display_mode}) {
if ($_ == DISPLAY_SCALAR) {
$widths = [80, 90, $size?(100):(), 200];
}
elsif ($_ == DISPLAY_ARRAY) {
my $chars = length(scalar(@{$self->{data}}));
$chars = 6 if $chars < 6;
$widths = [$chars*11, 80, 90, $size?(100):(), 200];
}
elsif ($_ == DISPLAY_HASH) {
$widths = [100, 80, 90, $size?(100):(), 200];
}
elsif ($_ == DISPLAY_GLOB) {
$widths = [100, 80, 90, $size?(100):(), 200];
}
}
return() unless $widths;
my $cols = $self->GetColumnCount();
foreach my $col (0..$cols-1) {
$self->SetColumnWidth( $col, $widths->[$col] );
}
}
###################################
# event handlers
sub on_list_item_activated {
my $self = shift;
my $event = shift;
my $row = $event->GetIndex();
#my $col = $event->GetColumn();
my $key;
for ($self->{display_mode}) {
$_ == DISPLAY_SCALAR and $key = undef, last;
$_ == DISPLAY_ARRAY and $key = $row, last;
$_ == DISPLAY_HASH and $key = $self->{hash_cache}[$row], last;
$_ == DISPLAY_GLOB and $key = GLOB_THINGS->[$row], last;
}
$self->parent->go_down($key);
}
###################################
# icon storage
{
my %icons = (
'array' => <<'HERE',
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A
/wD/oL2nkwAAAU1JREFUOMud0z1IllEYxvGfJPU2CE2FVENEFKQRGURbW7MEOjs1RGs01iBRi63R
GO2tJUpTS1FDGBGCS5EfQ4RU9qFXy20d5PUtvOAM5zrX+Z/7fs552KJwLNwJL8Nq+BWWwnS4GgZ0
U9gT7taG9BjL4dLWzZ0wU4Gf4X64EPaF3eFQGA+zDehyC7hX5ocwoofCRFX5IwwJZ8JGWAun/IfC
jTrwQXv6VBM4HubCSji/WXazfrC8ReFdTUaawOOm1xddAJ3yvgnfa9JpAl/LOxvOdQGMl/eqH33l
79qm5fVm436M4VZZt4WFop1ugtNNC8+7vIUv4cpm+GGZkw3gRHgTFusjroX3Bb4eBtsruViA1XDU
ThSeFORtOLITwIEwX5DP4WYYDntrDIVr4XU4uR1kMDz9x4/0LBzuVUlfGA2PwsewHj7VwxrL3yv/
o99l+f7MpBeL2gAAAABJRU5ErkJggg==
HERE
'scalar' => <<'HERE',
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A
/wD/oL2nkwAAAMlJREFUOMulkysOwkAURU+LxIADjWMBSBy2LAAP1SwAywZIMKwC2SBI2AACNB9P
QoIAEpKLeU0qWmZKJ3mZN5m5531mBhxDoF/7IRVHWBB1KNgI7rZ+CNaCAR4pxwIVmQ/gaodXgrb5
TUEkSHwAbxM1fJqYB9ga4CiYm98VBL6AjmCfU/9ZMPaFBIK+YGbiUwY0LVuSbJ6kmfwLqBvg4xLs
BCNBKwXYdS7NvzgjZuyV08zYBegJFoKD4GmimyARRGXrr1X9jc5X+AVi1ZMjWoXKsgAAAABJRU5E
rkJggg==
HERE
'hash' => <<'HERE',
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A
/wD/oL2nkwAAAOtJREFUOMvNk7FqAlEQRU8iWW20sEm37NcIgn+hEfINC1aBZbEUY8g/CP6OiE3U
TohbJ3DT3MBj2V0tfdV9M+8OM4d5cBdHEAneBRfBt2AheCq9GQm2gqiqQCaQ4EXwav0W5DuCvWBQ
18HBpr7g2foryM8E66YRfm16ELSsf5xLBGdB3FTgFHTQtz46txGk1yDObRoLJta5YCjYCbqCpQFf
DDyiBOlTUPjBStCzeViCPLXOrnWVCjYVkP9HPDSZY4NLKiA/hpDrCqwFs+B+vLkDwcBL0wlieRXk
upXeCkaleFvwYciFdfs+PuIfzS2y8qBa0XcAAAAASUVORK5CYII=
HERE
'code' => <<'HERE',
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A
/wD/oL2nkwAAAOlJREFUOMvNk61OQ0EYRE8ABalAFIcAUxJwON4ARQIKAQ7NO+BBIkgwBFLZpL7B
oRBIRA0IDA0YuOEvHMyImyb3plR13Tc7czY72YWJW8K8cC4MhE/hRtj6D6ArKBwJc8KO8DFqeEb4
CmC2pO+NClhKWGF73A4eAngRVsYpsBD6gTwKi0Oeb+GpCnCS4HKpzHuhmf0p4Ue4rAIMEppOoe3M
t0JDWM28UQUoYmiUTjyLdi1cCFd1HfRi3h3Sj6MXwkIdYF14F56FzVyjKRxG/xXuhFYdZE3oCK95
VH3hVGgJB4G8CfuT8fn+ANlvk1fzzFNCAAAAAElFTkSuQmCC
HERE
'glob' => <<'HERE',
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A
/wD/oL2nkwAAAKFJREFUOMvN0k1OAlEQBODvifE+spnhOh7DxJXEJazhRKBbuAPhCMaZcvMWhAw/
xgX0rrrS3VWV5u4r5Bz/8N8Dj0fXpvjBR+F7QM0TXjEqvA3JXYY+bEJzaCE0td+H5TnPk/AVujAL
CfOKP0N7TXAlvIRdXbCruPwlxFzAJ6faKrWr0q+3cCHENmwrvzhlYY93jAvrQ6KwwnPl9/fzibev
X+/lWAPE64K3AAAAAElFTkSuQmCC
HERE
'empty' => <<'HERE',
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A
/wD/oL2nkwAAABJJREFUOMtjYBgFo2AUjAIIAAAEEAABhT+qcgAAAABJRU5ErkJggg==
HERE
);
my %ref_to_icon = (
qw(
SCALAR 1
ARRAY 2
HASH 3
CODE 4
GLOB 5
REF 1
)
);
sub get_icon_list {
my $self = shift;
_icons_to_objects();
my $imglist = Wx::ImageList->new(16, 16, 0, 0);
$imglist->Add( $icons{$_} ) foreach qw(empty scalar array hash code glob);
return $imglist;
}
sub ref_to_icon {
my $self = shift;
my $reftype = shift;
return(0) if not $reftype;
my $icon_no = $ref_to_icon{$reftype};
return defined($icon_no) ? $icon_no : 0;
}
sub _icons_to_objects {
return if !values(%icons) or ref((values %icons)[0]);
require MIME::Base64;
my $handler = Wx::PNGHandler->new();
Wx::Image::AddHandler($handler);
foreach my $icon_name (keys %icons) {
my $str = MIME::Base64::decode_base64($icons{$icon_name});
open my $fh, '<', \$str or die $!;
my $img = Wx::Image->new($fh, Wx::wxBITMAP_TYPE_PNG);
close $fh;
$icons{$icon_name} = Wx::Bitmap->new($img);
}
}
}
1;
__END__
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