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List:       kjsembed
Subject:    [kjsembed] kjsembed with non-QObject classes
From:       Andreas Zehender <zehender () kde ! org>
Date:       2006-10-04 9:17:55
Message-ID: 200610040917.k949HtF2019206 () post ! webmailer ! de
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Hi,

I toy with the idea to add scripting ability to KPovModeler for a long time \
now.  Triggered by the latest discussion on kde-core-devel about scripting \
languages in kde and a new student that wants to implement animations in \
KPovModeler I searched for solutions for application scripting and found \
two: QSA and kjsembed

I have a main problem with QSA and perhaps kjsembed: No single class that \
should be scriptable is a QObject and I have many properties in KPovModeler \
that do not fit into a QVariant (at least not in Qt3), which I believe is a \
problem. For example povray uses other color objects than qt, or many \
properties are 2D, 3D or ND vectors.

Because of the QVariant limitation of Qt3, there is a separate PMVariant \
and a self made property system in KPovModeler that works and is used by a \
rule system to determine which object can be inserted at what point in the \
scene. There is also a child/parent structure of povray objects, similar to \
the QObject child/parent structure.

So my thought was (without looking at the kjsembed code) to "just" use the \
parser/interpreter part of kjsembed and adapt that to my own object \
structure, property system and add support for vectors, vector math, povray \
colors etc. I don't need signals/slots, and I don't need access to \
application objects, only the graphical povray objects should be \
scriptable, which are no QObjects as I wrote above.

Would that be possible with kjsembed? Are there already class interfaces to \
adapt to another property/object system or is kjsembed limited to QObjects \
like QSA? Or can the bindings be overwritten?

Maybe you can point me to the files where the parser/interpreter part is \
located and where the binding to classes and properties is made. Is there \
documentation available how to add bindings to other classes?

Regards,
Andreas
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