You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
libtqt-perl/PerlTQt/lib/TQt/slots.pm

85 lines
2.4 KiB

package TQt::slots;
use Carp;
#
# Proposed usage:
#
# use TQt::slots changeSomething => ['int'];
#
# use TQt::slots 'changeSomething(int)' => {
# args => ['int'],
# call => 'changeSomething'
# };
#
sub import {
no strict 'refs';
my $self = shift;
my $caller = $self eq "TQt::slots" ? (caller)[0] : $self;
my $parent = ${ $caller . '::ISA' }[0];
my $parent_qt_invoke = $parent . '::qt_invoke';
TQt::_internal::installqt_invoke($caller . '::qt_invoke') unless defined &{ $caller. '::qt_invoke' };
# *{ $caller . '::qt_invoke' } = sub {
# my $meta = \%{ $caller . '::META' };
# die unless $meta->{object};
# my $offset = $_[0] - $meta->{object}->slotOffset;
# if($offset >= 0) {
# TQt::_internal::invoke(TQt::this(), $meta->{slots}[$offset], $_[1]);
# return 1;
# } else {
# TQt::this()->$parent_qt_invoke(@_);
# }
# } unless defined &{ $caller . '::qt_invoke' };
my $meta = \%{ $caller . '::META' };
croak "Odd number of arguments in slot declaration" if @_%2;
my(%slots) = @_;
for my $slotname (keys %slots) {
my $slot = { name => $slotname };
my $args = $slots{$slotname};
$slot->{arguments} = [map { s/\s(?=[*&])//; { type => $_, name => "" } } @$args];
my $arglist = join ',', @$args;
$slot->{prototype} = $slotname . "($arglist)";
if ( exists $meta->{slot}{$slotname} ) {
(my $s1 = $slot->{prototype}) =~ s/\s+//g;
(my $s2 = $meta->{slot}{$slotname}{prototype}) =~ s/\s+//g;
if( $s1 ne $s2 ) {
warn( "Slot declaration:\n\t$slot->{prototype}\nwill override ".
"previous declaration:\n\t$meta->{slot}{$slotname}{prototype}");
} else {
next;
}
}
$slot->{returns} = 'void';
$slot->{method} = $slotname;
push @{$meta->{slots}}, $slot;
my $slot_index = $#{ $meta->{slots} };
my $argcnt = scalar @$args;
my $mocargs = TQt::_internal::allocateMocArguments($argcnt);
my $i = 0;
for my $arg (@$args) {
my $a = $arg;
$a =~ s/^const\s+//;
if($a =~ /^(bool|int|double|char\*|TQString)&?$/) {
$a = $1;
} else {
$a = 'ptr';
}
my $valid = TQt::_internal::setMocType($mocargs, $i, $arg, $a);
die "Invalid type for slot argument ($arg)\n" unless $valid;
$i++;
}
$meta->{slot}{$slotname} = $slot;
$slot->{index} = $slot_index;
$slot->{mocargs} = $mocargs;
$slot->{argcnt} = $argcnt;
}
@_ and $meta->{changed} = 1;
}
1;