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package interactive_newt; # $Id$
use diagnostics;
use strict;
use vars qw(@ISA);
@ISA = qw(interactive);
use interactive;
use common;
use log;
use Newt::Newt; #- !! provides Newt and not Newt::Newt
my ($width, $height) = (80, 25);
my @wait_messages;
sub new() {
Newt::Init;
Newt::Cls;
Newt::SetSuspendCallback;
($width, $height) = Newt::GetScreenSize;
open STDERR,">/dev/null" if $::isStandalone;
bless {}, $_[0];
}
sub enter_console { Newt::Suspend }
sub leave_console { Newt::Resume }
sub suspend { Newt::Suspend }
sub resume { Newt::Resume }
sub end() { Newt::Finished }
sub exit() { end; exit($_[1]) }
END { end() }
sub myTextbox {
my $allow_scroll = shift;
my $width = $width - 9;
my @l = map { /(.{1,$width})/g } map { split "\n" } @_;
my $h = min($height - 13, int @l);
my $flag = 1 << 6;
if ($h < @l) {
if ($allow_scroll) {
$flag |= 1 << 2; #- NEWT_FLAG_SCROLL
} else {
# remove the text, no other way!
@l = @l[0 .. $h-1];
}
}
my $mess = Newt::Component::Textbox(1, 0, my $w = max(map { length } @l) + 1, $h, $flag);
$mess->TextboxSetText(join("\n", @_));
$mess, $w + 1, $h;
}
sub separator {
my $blank = Newt::Component::Form(\undef, '', 0);
$blank->FormSetWidth ($_[0]);
$blank->FormSetHeight($_[1]);
$blank;
}
sub checkval { $_[0] && $_[0] ne ' ' ? '*' : ' ' }
sub ask_fromW {
my ($o, $common, $l, $l2) = @_;
my $ignore; #-to handle recursivity
my $old_focus = -2;
#-the widgets
my (@widgets, $total_size);
my $set_all = sub {
$ignore = 1;
$_->{set}->(${$_->{e}{val}}) foreach @widgets;
# $_->{w}->set_sensitive(!$_->{e}{disabled}()) foreach @widgets;
$ignore = 0;
};
my $get_all = sub {
${$_->{e}{val}} = $_->{get}->() foreach @widgets;
};
my $create_widget = sub {
my ($e, $ind) = @_;
$e->{type} = 'list' if $e->{type} =~ /(icon|tree)list/;
#- combo doesn't exist, fallback to a sensible default
$e->{type} = $e->{not_edit} ? 'list' : 'entry' if $e->{type} eq 'combo';
my $changed = sub {
return if $ignore;
return $old_focus++ if $old_focus == -2; #- handle special first case
$get_all->();
#- TODO: this is very rough :(
$common->{callbacks}{$old_focus == $ind ? 'changed' : 'focus_out'}->($ind);
$set_all->();
$old_focus = $ind;
};
my ($w, $real_w, $set, $get, $expand, $size);
if ($e->{type} eq 'bool') {
$w = Newt::Component::Checkbox(-1, -1, $e->{text} || '', checkval(${$e->{val}}), " *");
$set = sub { $w->CheckboxSetValue(checkval($_[0])) };
$get = sub { $w->CheckboxGetValue == ord '*' };
} elsif ($e->{type} eq 'button') {
$w = Newt::Component::Button(-1, -1, may_apply($e->{format}, ${$e->{val}}));
} elsif ($e->{type} =~ /list/) {
my ($h, $wi) = (@$l == 1 && $height > 30 ? 10 : 5, 20);
my $scroll = @{$e->{list}} > $h ? 1 << 2 : 0;
$size = min(int @{$e->{list}}, $h);
$w = Newt::Component::Listbox(-1, -1, $h, $scroll); #- NEWT_FLAG_SCROLL
foreach (@{$e->{list}}) {
my $t = may_apply($e->{format}, $_);
$w->ListboxAddEntry($t, $_);
$wi = max($wi, length $t);
}
$w->ListboxSetWidth(min($wi + 3, $width - 7)); # 3 added for the scrollbar (?)
$get = sub { $w->ListboxGetCurrent };
$set = sub {
my ($val) = @_;
map_index {
$w->ListboxSetCurrent($::i) if $val eq $_;
} @{$e->{list}};
};
} else {
$w = Newt::Component::Entry(-1, -1, '', 20, ($e->{hidden} && 1 << 11) | 1 << 2);
$get = sub { $w->EntryGetValue };
$set = sub { $w->EntrySet($_[0], 1) };
}
$total_size += $size || 1;
#- !! callbacks must be kept otherwise perl will free them !!
#- (better handling of addCallback needed)
{ e => $e, w => $w, real_w => $real_w || $w, expand => $expand, callback => $changed,
get => $get || sub { ${$e->{val}} }, set => $set || sub {} };
};
@widgets = map_index { $create_widget->($_, $::i) } @$l;
$_->{w}->addCallback($_->{callback}) foreach @widgets;
$set_all->();
my $grid = Newt::Grid::CreateGrid(3, max(1, int @$l));
map_index {
$grid->GridSetField(0, $::i, 1, ${Newt::Component::Label(-1, -1, $_->{e}{label})}, 0, 0, 1, 0, 1, 0);
$grid->GridSetField(1, $::i, 1, ${$_->{real_w}}, 0, 0, 0, 0, 1, 0);
} @widgets;
my $listg = do {
my $height = 18;
#- use a scrolled window if there is a lot of checkboxes (aka
#- ask_many_from_list) or a lot of widgets in general (aka
#- options of a native PostScript printer in printerdrake)
#- !! works badly together with list's (lists are one widget, so a
#- big list window will not switch to scrollbar mode) :-(
if ((((grep { $_->{type} eq 'bool' } @$l) > 6) ||
((@$l) > 3)) && $total_size > $height) {
$grid->GridPlace(1, 1); #- Uh?? otherwise the size allocated is bad
my $scroll = Newt::Component::VerticalScrollbar(-1, -1, $height, 9, 10);
my $subf = $scroll->Form('', 0);
$subf->FormSetHeight($height);
$subf->FormAddGrid($grid, 0);
Newt::Grid::HCloseStacked($subf, separator(1, $height), $scroll);
} else {
$grid;
}
};
my ($buttons, $ok, $cancel) = Newt::Grid::ButtonBar($common->{ok} || _("Ok"), if_($common->{cancel}, $common->{cancel}));
my $form = Newt::Component::Form(\undef, '', 0);
my $window = Newt::Grid::GridBasicWindow(first(myTextbox(@widgets == 0, @{$common->{messages}})), $listg, $buttons);
$window->GridWrappedWindow($common->{title} || '');
$form->FormAddGrid($window, 1);
my $check = sub {
my ($f) = @_;
$get_all->();
my ($error, $focus) = $f->();
if ($error) {
$set_all->();
}
!$error;
};
my $canceled;
do {
my $r = $form->RunForm;
foreach (@widgets) {
if ($$r == ${$_->{w}}) {
$form->FormDestroy;
Newt::PopWindow;
$_->{e}{clicked}();
return ask_fromW($o, $common, $l, $l2);
}
}
$canceled = $cancel && $$r == $$cancel;
} until ($check->($common->{callbacks}{$canceled ? 'canceled' : 'complete'}));
$form->FormDestroy;
Newt::PopWindow;
!$canceled;
}
sub waitbox {
my ($title, $messages) = @_;
my ($t, $w, $h) = myTextbox(1, @$messages);
my $f = Newt::Component::Form(\undef, '', 0);
Newt::CenteredWindow($w, $h, $title);
$f->FormAddComponent($t);
$f->DrawForm;
Newt::Refresh;
$f->FormDestroy;
push @wait_messages, $f;
$f;
}
sub wait_messageW {
my ($o, $title, $messages) = @_;
{ form => waitbox($title, $messages), title => $title };
}
sub wait_message_nextW {
my ($o, $messages, $w) = @_;
$o->wait_message_endW($w);
$o->wait_messageW($w->{title}, $messages);
}
sub wait_message_endW {
my ($o, $w) = @_;
my $wait = pop @wait_messages;
# log::l("interactive_newt does not handle none stacked wait-messages") if $w->{form} != $wait;
Newt::PopWindow;
}
1;
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