Ulrich Hertlein wrote on 2009-12-31:
> I have coded up a proposal for a general-purpose property system for
> osg::Object and would
> like to present it for comments and discussion.
Looks very cool!
> For data that is not derived from osg::Referenced (like floats, int,
> strings) instead of
> using a variant class I've created the following template class:
>
> template <typename T> class Property : public Referenced {
> public:
> //...
> void set(const T& data) { _data = data; }
> const T& get() const { return _data; }
> T& get() { return _data; }
> private:
> T _data;
> };
>
> Data is stored like this:
> osg::Property<int>* ip = new osg::Property<int>(42);
> obj->setProperty("my.int", ip);
>
> and retrieved like this:
> osg::Property<int>* ip0 = dynamic_cast<osg::Property<int> >(obj-
>> getProperty("my.int"));
> ip0->get() == 42;
The assignment and comparison syntax is a little odd; I think adding
operator=(), operator==(), etc. to osg::Property would be better, so you could
do
*obj->getProperty<int>("my.int") = 42;
if (*obj->getProperty<int>("my.int") == 42) { ...}
Thanks for the hard work, I'm looking forward to seeing this in OSG :)
--
Bryan Thrall
FlightSafety International
[email protected]
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