Add decorations for uic's generated data members declarations

I have a small feature request (that I've already implemented as a local hack, so it's doable, I'm just wondering on the proper API.)

I'd like to have uic support decorations when it generates the data members in the Ui class. Basically, instead of generating

class Ui_Form {
public:
  QPushButton *button;
  QLabel *label; 
  // etc.
};

I'd like to have some means to tune the generation so that I could get something like this out:

#include <smart_ptr> // custom include

class Ui_Form {
public:
  smart_ptr<QPushButton *> button;
  smart_ptr<QLabel *> label; 
  // etc.
};

(There's some support for custom includes, but it's limited to 1 include , and this should be on top of that).

I guess it could be as blunt as two new command line options, like -decl-prefix="smart_ptr<" and -decl-suffix="> ", but maybe we have better ideas?

I also wonder about CMake support for all of this. I wonder how to customize uic invocations for some .ui files. (AUTOUIC seems to have some problems with Ninja, so few(er) projects adopt it these days?)