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Re: [Libqtlua-list] Accessing QObject inside a property in Lua

From: Gustavo de Sá Carvalho Honorato
Subject: Re: [Libqtlua-list] Accessing QObject inside a property in Lua
Date: Mon, 17 Jan 2011 20:41:39 -0200

2011/1/17 Alexandre Becoulet <address@hidden>:
> On Monday, January 17, 2011 07:39:37 pm you wrote:
> Hi,
>> >> > I guessed that. The problem is once registered as a Qt meta type,
>> >> > MainWindow* and QObject* are just different meta types. Qt meta types
>> >> > system does not enable QtLua to guess at runtime that MainWindow* can
>> >> > be interpreted as a QObject*, due to C++ inheritance rules.
> I found no way to even detect if the type is a pointer to a QObject or if its
> an array of floats or anything else from the registered meta type id.
> QMetaType is not designed to return a pointer to the QMetaObject when
> relevant. Any idea?

Ok, I think I misunderstood the problem. The problem is to retrieve
the QMetaObject from an metatype id. I'll try to think in something.

>> > It should not take too long for me to implement, it's just a matter of
>> > accessing a QMap in the 'default:' section of a switch statement to
>> > handle dynamically registered types cases. I have precise idea of how
>> > user callbacks should be implemented and will update the manual with
>> > examples.
>> Very good! Thanks! I'm looking forward to this feature. You can count
>> on me if you need any help.
> Commited in subversion. Have a look to:

Great! You are very efficient. One suggestion: the page could have a
reference to this new way of type conversion. What you think?

> --
> Alexandre

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