Re: Attempting to Create Obj-C Gecko Framework

[Brian Powell]

On Tuesday, April 10, 2001, at 12:29 AM, Richard Dale wrote:

> I'm doing the wrappers for KDE/Qt/C/Objective-C. I have a pair of source
> convertors, one to convert C++ headers to C .h and .cpp files, and the 
> other to
> convert the same headers to the matching Objective-C .h and .m files. 
> How many
> headers/classes/methods are there in the gecko C++ api?

I'll investigate this more and get back with you.  I'm still working on 
feasibility, direction, etc.

> They have a hard coded 'type translation table' of the Qt/KDE C++ types 
> and
> their C/Objective-C mappings, which you would need to adapt for 
> wrapping Gecko.
> Please email me if you would like the two converters, and I can send 
> them as
> attachments c. 100k each (they are written in perl, adapted from the 
> 'kdoc'
> documentation tool). They aren't checked into the KDE CVS yet, but 
> should be in
> a couple of weeks in time for 2.2.

I would love to get  each of those, even if for no other reason as a 
great educational experience.  Thank you, I appreciate your help.

> Another technical issue is, if you instantiate an instance in the C++ 
> world, and
> then it is subsequently referenced in the Objective-C world you need to
> automatically create an instance. Then, at '- dealloc' time you need to 
> make
> sure you don't free those sort of instances, because the C++ code would 
> expect
> to be responsible for freeing them. Only C++ instances created as a
> result of alloc/init'ing an Objective-C instance directly should be 
> freed then.

Thank you for the tip, I'll keep that in mind.  I assume that there is 
cross-communication in your wrapper to Qt?  By that I mean that ObjC can 
invoke C++ methods (of existing objects) and vice-versa?

Thanks!

--Brian