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+.. _gen-overview:
+
+******************
+Generator Overview
+******************
+
+In a few words, the Generator is a utility that parses a collecion of header and
+typesystem files, generating other files (code, documentation, etc.) as result.
+
+Creating new bindings
+=====================
+
+.. figure:: images/bindinggen-development.png
+   :scale: 80
+   :align: center
+
+   Creating new bindings
+
+Each module of the generator system has an specific role.
+
+1. Provide enough data about the classes and functions.
+2. Generate valid code, with modifications from typesystems and injected codes.
+3. Modify the API to expose the objects in a Python-friendly way.
+4. Insert customizations where handwritten code is needed.
+
+.. figure:: images/boostqtarch.png
+   :scale: 80
+   :align: center
+
+   Runtime architecture
+
+The newly created binding will run on top of Boost.Python library which takes
+care of interfacing Python and the underlying C++ library.
+
+Handwritten inputs
+==================
+
+Creating new bindings involves creating two pieces of "code": the typesystem and
+the inject code.
+
+:typesystem: XML files that provides the developer with a tool to customize the
+             way that the generators will see the classes and functions. For
+             example, functions can be renamed, have its signature changed and
+             many other actions.
+:inject code: allows the developer to insert handwritten code where the generated
+              code is not suitable or needs some customization.