1 files changed, 51 insertions, 0 deletions
diff --git a/PerlQt/lib/Qt/attributes.pm b/PerlQt/lib/Qt/attributes.pm
new file mode 100644
index 0000000..3a25487
--- /dev/null
+++ b/PerlQt/lib/Qt/attributes.pm
@@ -0,0 +1,51 @@
+package Qt::attributes;
+#
+# I plan to support public/protected/private attributes. here goes.
+# Attributes default to protected.
+#
+# package MyBase;
+# use Qt::attributes qw(
+# private:
+#    foo
+# protected:
+#    bar
+# public:
+#    baz
+# );
+#
+# package MyDerived;
+# use Qt::isa qw(MyBase);
+#
+# sub foo {
+#     # 1 way to access private attributes from derived class
+#     #
+#     # this->{$class} contains private attributes for $class
+#     # I specify it to always work that way,
+#     # so feel free to use it in code.
+#     this->{MyBase}{foo} = 10;
+#
+#     # 2 ways to access protected attributes
+#     bar = 10;
+#     this->{bar} = 10;
+#
+#     # 3 ways to access public attributes
+#     baz = 10;
+#     this->{baz} = 10;
+#     this->baz = 10;
+# }
+#
+# Attributes override any method with the same name, so you may want
+# to prefix them with _ to prevent conflicts.
+#
+sub import {
+    my $class = shift;
+    my $caller = (caller)[0];
+
+    for my $attribute (@_) {
+	exists ${ ${$caller . '::META'}{'attributes'} }{$attribute} and next;
+	Qt::_internal::installattribute($caller, $attribute);
+        ${ ${$caller . '::META'}{'attributes'} }{$attribute} = 1;
+    }
+}
+
+1;