[Insight-users] Re: extend classes with cableswig

[Gaetan Lehmann]

On Wed, 03 Aug 2005 20:06:53 +0200, Brad King <brad.king at kitware.com>  
wrote:

> Gaetan Lehmann wrote:
>> swig allow to extend classes with the keyword %extend.
>>  I want to implement methods such as __getitem__, __setitem__ and  
>> __len__  in Size, Index, Array and FixedArray classes, so those basic  
>> objects can  be accessed with native python interface, and with bound  
>> checking, which  is more python user friendly. Adding __repr__ or  
>> __str__ method to those  classes would also allow user to easily see  
>> the content of objects of  those classes...
>> Also, I want to implement __str__ in LighObject class, to return the   
>> string produced by the Print method, so lots of itk objects can be  
>> printed  with "print anItkObject"
>>  Sadely, with cableswig, it seems %extend have no effect. Do you know  
>> why ?
>> What can be done to extend classes ? Currently, I'm adding all those   
>> method directly in .h files...
>
> I think you're stuck for now.

Ok
So I'll keep my customizations in headers until it can be done in swig :-/

> The "right" way to do this is to get rid of CableSwig and extend  
> standard SWIG with a %xml(gccxml) option to import a gccxml dump.  Then  
> all the standard swig stuff will work properly.  I think this approach  
> will be much better than trying to get all the swig extension syntax  
> into CableSwig.
>

Do you already know how to modify SWIG ? Is it lot of work to do ?

-- 
Gaetan Lehmann <gaetan.lehmann at jouy.inra.fr>
Tel: +33 1 34 65 29 66
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
Web: http://voxel.jouy.inra.fr