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package QtCore4::signals;
#
# Proposed usage:
#
# use QtCore4::signals changeSomething => ['int'];
#
use strict;
use warnings;
use Carp;
use QtCore4;
our $VERSION = 0.60;
sub import {
no strict 'refs';
my $self = shift;
croak "Odd number of arguments in signal declaration" if @_%2;
my $caller = $self eq 'QtCore4::signals' ? (caller)[0] : $self;
my(@signals) = @_;
my $meta = \%{ $caller . '::META' };
# The perl metaObject holds info about signals and slots, inherited
# sig/slots, etc. This is what actually causes perl-defined sig/slots to
# be executed.
*{ "${caller}::metaObject" } = sub {
return Qt::_internal::getMetaObject($caller);
} unless defined &{ "${caller}::metaObject" };
# This makes any call to the signal name call XS_SIGNAL
Qt::_internal::installqt_metacall( $caller ) unless defined &{$caller."::qt_metacall"};
for ( my $i = 0; $i < @signals; $i += 2 ) {
my $signalname = $signals[$i];
my $signalargs = $signals[$i+1];
# Build the signature for this signal
my $signature = join '', ("$signalname(", join(',', @{$signalargs}), ')');
# Normalize the signature, might not be necessary
$signature = Qt::MetaObject::normalizedSignature(
$signature )->data();
my $signal = {
name => $signalname,
signature => $signature,
};
push @{$meta->{signals}}, $signal;
Qt::_internal::installsignal("${caller}::$signalname") unless defined &{ "${caller}::$signalname" };
}
}
1;
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