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| author | Aaron Kennedy <aaron.kennedy@nokia.com> | 2009-07-30 00:52:40 (GMT) |
|---|---|---|
| committer | Aaron Kennedy <aaron.kennedy@nokia.com> | 2009-07-31 01:18:57 (GMT) |
| commit | 46ca473d569b92cdfc567c2096b1c4af3ba68f80 (patch) | |
| tree | 8473ac40544084f0e6e18876c3605ea2603ef6c8 /src/corelib/kernel/qobject.h | |
| parent | 87239ef6438b50b2dfa7b6526a5e5cbe7d5598d5 (diff) | |
| download | Qt-46ca473d569b92cdfc567c2096b1c4af3ba68f80.zip Qt-46ca473d569b92cdfc567c2096b1c4af3ba68f80.tar.gz Qt-46ca473d569b92cdfc567c2096b1c4af3ba68f80.tar.bz2 | |
Allow retrieval of interface IId from class type.
This method is necessary for QML to support Qt interfaces, but probably
shouldn't be used otherwise.
Reviewed-by: Roberto Raggi
Diffstat (limited to 'src/corelib/kernel/qobject.h')
| -rw-r--r-- | src/corelib/kernel/qobject.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h index 1fb216b..4715626 100644 --- a/src/corelib/kernel/qobject.h +++ b/src/corelib/kernel/qobject.h @@ -379,6 +379,9 @@ inline QList<T> qFindChildren(const QObject *o, const QRegExp &re) #endif // Q_MOC_RUN +template <class T> inline const char * qobject_interface_iid() +{ return 0; } + template <class T> inline T qobject_cast_helper(QObject *object, T) { return static_cast<T>(((T)0)->staticMetaObject.cast(object)); } @@ -395,6 +398,8 @@ inline T qobject_cast(const QObject *object) #ifndef Q_MOC_RUN # define Q_DECLARE_INTERFACE(IFace, IId) \ + template <> inline const char *qobject_interface_iid<IFace *>() \ + { return IId; } \ template <> inline IFace *qobject_cast_helper<IFace *>(QObject *object, IFace *) \ { return (IFace *)(object ? object->qt_metacast(IId) : 0); } \ template <> inline IFace *qobject_cast_helper<IFace *>(const QObject *object, IFace *) \ @@ -458,8 +463,13 @@ inline T qobject_cast(const QObject *object) } +template <class T> inline const char * qobject_interface_iid() +{ return 0; } + #ifndef Q_MOC_RUN # define Q_DECLARE_INTERFACE(IFace, IId) \ + template <> inline const char *qobject_interface_iid<IFace *>() \ + { return IId; } \ template <> inline IFace *qobject_cast<IFace *>(QObject *object) \ { return reinterpret_cast<IFace *>((object ? object->qt_metacast(IId) : 0)); } \ template <> inline IFace *qobject_cast<IFace *>(const QObject *object) \ |