00001 #ifndef TYPELIB_IOPLUGINS_HH
00002 #define TYPELIB_IOPLUGINS_HH
00003
00004 #include <boost/type_traits/is_base_and_derived.hpp>
00005 #include <boost/mpl/if.hpp>
00006
00007 namespace Typelib
00008 {
00009 class ExportPlugin;
00010 class ImportPlugin;
00011 class Exporter;
00012 class Importer;
00013
00014 template<typename Type>
00015 struct plugin_traits
00016 {
00017 typedef typename boost::mpl::if_
00018 < boost::is_base_and_derived<Exporter, Type>
00019 , ExportPlugin
00020 , ImportPlugin >::type plugin_base;
00021
00022 typedef typename boost::mpl::if_
00023 < boost::is_base_and_derived<Exporter, Type>
00024 , Exporter
00025 , Importer >::type object_base;
00026 };
00027
00028 template<typename Type>
00029 class GenericIOPlugin
00030 : public plugin_traits<Type>::plugin_base
00031 {
00032 public:
00033 GenericIOPlugin(char const* name)
00034 : plugin_traits<Type>::plugin_base(name) {}
00035 typename plugin_traits<Type>::object_base* create()
00036 { return new Type; }
00037 };
00038
00039 class TypeDefinitionPlugin
00040 {
00041 public:
00042 virtual void registerTypes(Typelib::Registry& registry) = 0;
00043 };
00044 }
00045
00046 #define TYPELIB_REGISTER_IO2(name, klass1, klass2) extern "C" void registerPlugins(Typelib::PluginManager& manager) {\
00047 manager.add(new Typelib::GenericIOPlugin<klass1>(#name)); \
00048 manager.add(new Typelib::GenericIOPlugin<klass2>(#name)); \
00049 }
00050
00051 #define TYPELIB_REGISTER_IO1(name, klass1) extern "C" void registerPlugins(Typelib::PluginManager& manager) {\
00052 manager.add(new Typelib::GenericIOPlugin<klass1>(#name)); \
00053 }
00054
00055 #endif
00056
