diff options
| author | Jørgen Lind <jorgen.lind@digia.com> | 2014-10-23 13:58:08 +0200 |
|---|---|---|
| committer | Laszlo Agocs <laszlo.agocs@digia.com> | 2014-10-29 09:39:23 +0100 |
| commit | 14e51127cf2ba4fdb3469da90fd2f8f26084bb4b (patch) | |
| tree | 26a3099d268ab08810910c95d5191f19022f7aab /src/gui/kernel/qwindow.h | |
| parent | 87eb3ea1904756362ce5474838b25b5b00193dc5 (diff) | |
Add qobject_cast template specialisation for QWindow
greatly improving the performance of qobject_cast<QWindow *>
Change-Id: If5a1afa6e41f4676f4838ea3ff80f1d89e396dfc
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Diffstat (limited to 'src/gui/kernel/qwindow.h')
| -rw-r--r-- | src/gui/kernel/qwindow.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/gui/kernel/qwindow.h b/src/gui/kernel/qwindow.h index 7cd25b010f..473d275b56 100644 --- a/src/gui/kernel/qwindow.h +++ b/src/gui/kernel/qwindow.h @@ -356,6 +356,19 @@ private: friend Q_GUI_EXPORT QWindowPrivate *qt_window_private(QWindow *window); }; +#ifndef Q_QDOC +template <> inline QWindow *qobject_cast<QWindow*>(QObject *o) +{ + if (!o || !o->isWindowType()) return 0; + return static_cast<QWindow*>(o); +} +template <> inline const QWindow *qobject_cast<const QWindow*>(const QObject *o) +{ + if (!o || !o->isWindowType()) return 0; + return static_cast<const QWindow*>(o); +} +#endif // !Q_QDOC + QT_END_NAMESPACE #endif // QWINDOW_H |