[Qt-interest] How to create object instance knowing only its class name in a QString?

[frares at gmail.com]

Hi, all.

How do I instantiate an object knowing its class name in a QString and that  
all similar classes are derived from a "facade" super class?

I am trying to build a (as much as possible) generic interface for math  
processing libraries, so I am thinking on the overall architecture.

As for these libraries, I thought on a creating "facade" classes for, say,  
a "ILibrary" class, which would be, roughly, a manager for a list  
of "IAlgorithm" classes, carrying generics on how to send back and forth  
input parameters and output results, name of the specific classes (as  
each "IAlgorithim" may appear 0, 1 or more times in a specific image  
processing task) and ID containers, to identify each instance.

Any hints?
Thanks
Francisco
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