diff options
Diffstat (limited to 'libodb-qt/odb/qt/smart-ptr/wrapper-traits.hxx')
-rw-r--r-- | libodb-qt/odb/qt/smart-ptr/wrapper-traits.hxx | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libodb-qt/odb/qt/smart-ptr/wrapper-traits.hxx b/libodb-qt/odb/qt/smart-ptr/wrapper-traits.hxx new file mode 100644 index 0000000..dc6cb02 --- /dev/null +++ b/libodb-qt/odb/qt/smart-ptr/wrapper-traits.hxx @@ -0,0 +1,64 @@ +// file : odb/qt/smart-ptr/wrapper-traits.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_QT_SMART_PTR_WRAPPER_TRAITS_HXX +#define ODB_QT_SMART_PTR_WRAPPER_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <QtCore/QSharedPointer> + +#include <odb/wrapper-traits.hxx> + +namespace odb +{ + // Specialization for QSharedPointer. + // + template <typename T> + class wrapper_traits< QSharedPointer<T> > + { + public: + typedef T wrapped_type; + typedef QSharedPointer<T> wrapper_type; + + // T can be const. + // + typedef + typename odb::details::meta::remove_const<T>::result + unrestricted_wrapped_type; + + static const bool null_handler = true; + static const bool null_default = false; + + static bool + get_null (const wrapper_type& p) + { + return p.isNull (); + } + + static void + set_null (wrapper_type& p) + { + p.clear (); + } + + static const wrapped_type& + get_ref (const wrapper_type& p) + { + return *p; + } + + static wrapped_type& + set_ref (wrapper_type& p) + { + if (p.isNull ()) + p = wrapper_type (new unrestricted_wrapped_type); + + return const_cast<unrestricted_wrapped_type&> (*p); + } + }; +} + +#include <odb/post.hxx> + +#endif // ODB_QT_SMART_PTR_WRAPPER_TRAITS_HXX |