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[Libqtlua-list] Making a QObject instanciatable from Lua

From: Edwin Marshall
Subject: [Libqtlua-list] Making a QObject instanciatable from Lua
Date: Tue, 24 Jan 2012 01:31:03 -0600

First of all, I'm very new to lua, so if there is a more idiomatic way of accomplishing this, please let me know. Secondly, thank you for your efforts on such a great library. I'm evaluating it for use as a replacement for QtScript, and it seems to have a lot of features that QtScript doesn't, all while being quite compact.

Anyways, I'm designing a program[1] that defines basic components, such as Action, Item, and Container. For the purpose of this email, I will focus on the Container component, which has the sole purpose of containing items and applying arbitrary restrictions to its contents. Specifically, given a Container named Hand, the following restrictions would apply:
What I'd like to do is define a generic class in C++ named Container[2] which could then be accessed and instantiated in lua as a table. It seems as though UserData or UserObject is what I need. However, In addition to not seeing any example code of how to use such a defined object without first instantiating it (eg, passing an instance to lua), I'd like to find a way to do so that doesn't tightly couple QtLua to the Container class, should I decide to revert to a different binding language (Such as QtScript). My first instinct is to employee multiple inheritance, but I can't help but think this is sloppy, and that there is a cleaner way to do this.

In short, my question is this:
Edwin O Marshall (aspidites)

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