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78 lines
2.1 KiB
Perl
78 lines
2.1 KiB
Perl
package TQt::signals;
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use Carp;
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#
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# Proposed usage:
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#
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# use TQt::signals fooActivated => ['int'];
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#
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# use TQt::signals fooActivated => {
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# name => 'fooActivated(int)',
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# args => ['int']
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# };
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#
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# sub whatever { emit fooActivated(10); }
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#
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sub import {
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no strict 'refs';
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my $self = shift;
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my $caller = $self eq "TQt::signals" ? (caller)[0] : $self;
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my $parent = ${ $caller . '::ISA' }[0];
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my $parent_qt_emit = $parent . '::tqt_emit';
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TQt::_internal::installqt_invoke($caller . '::tqt_emit') unless defined &{ $caller. '::tqt_emit' };
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# *{ $caller . '::tqt_emit' } = sub {
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# my $meta = \%{ $caller . '::META' };
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# die unless $meta->{object};
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# my $offset = $_[0] - $meta->{object}->signalOffset;
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# if($offset >= 0) {
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# TQt::_internal::invoke(TQt::this(), $meta->{signals}[$offset], $_[1]);
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# return 1;
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# } else {
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# TQt::this()->$parent_qt_emit(@_);
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# }
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# } unless defined &{ $caller . '::tqt_emit' };
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my $meta = \%{ $caller . '::META' };
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croak "Odd number of arguments in signal declaration" if @_%2;
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my(%signals) = @_;
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for my $signalname (keys %signals) {
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my $signal = { name => $signalname };
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my $args = $signals{$signalname};
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$signal->{arguments} = [map { s/\s(?=[*&])//; { type => $_, name => "" } } @$args];
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my $arglist = join ',', @$args;
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$signal->{prototype} = $signalname . "($arglist)";
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$signal->{returns} = 'void';
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$signal->{method} = $signalname;
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push @{$meta->{signals}}, $signal;
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my $signal_index = $#{ $meta->{signals} };
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my $argcnt = scalar @$args;
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my $mocargs = TQt::_internal::allocateMocArguments($argcnt);
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my $i = 0;
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for my $arg (@$args) {
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my $a = $arg;
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$a =~ s/^const\s+//;
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if($a =~ /^(bool|int|double|char\*|TQString)&?$/) {
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$a = $1;
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} else {
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$a = 'ptr';
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}
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my $valid = TQt::_internal::setMocType($mocargs, $i, $arg, $a);
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die "Invalid type for signal argument ($arg)\n" unless $valid;
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$i++;
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}
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$meta->{signal}{$signalname} = $signal;
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$signal->{index} = $signal_index;
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$signal->{mocargs} = $mocargs;
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$signal->{argcnt} = $argcnt;
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TQt::_internal::installsignal("$caller\::$signalname");
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}
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@_ and $meta->{changed} = 1;
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}
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1;
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