diff options
Diffstat (limited to 'libpyside/proxyslot.h')
| -rw-r--r-- | libpyside/proxyslot.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/libpyside/proxyslot.h b/libpyside/proxyslot.h new file mode 100644 index 000000000..8e45eff6f --- /dev/null +++ b/libpyside/proxyslot.h @@ -0,0 +1,81 @@ +/* +* This file is part of the Shiboken Python Bindings Generator project. +* +* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +* +* Contact: PySide team <contact@pyside.org> +* +* This program is free software; you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public License +* version 2.1 as published by the Free Software Foundation. Please +* review the following information to ensure the GNU Lesser General +* Public License version 2.1 requirements will be met: +* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +* +* As a special exception to the GNU Lesser General Public License +* version 2.1, the object code form of a "work that uses the Library" +* may incorporate material from a header file that is part of the +* Library. You may distribute such object code under terms of your +* choice, provided that the incorporated material (i) does not exceed +* more than 5% of the total size of the Library; and (ii) is limited to +* numerical parameters, data structure layouts, accessors, macros, +* inline functions and templates. +* +* This program is distributed in the hope that it will be useful, but +* WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public +* License along with this program; if not, write to the Free Software +* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA +* 02110-1301 USA +*/ + +#include <QObject> +#include <QHash> + +namespace PySide +{ + +class AbstractQObjectConnection; + +class ProxySlot : public QObject +{ +public: + ProxySlot(QObject* signalSource); + bool connect(AbstractQObjectConnection* connection); +protected: + /** + * Qt's meta-object system uses the qt_metacall() function to access the + * meta-information for a particular QObject object (its signals, slots, + * properties, etc.). + * + * About the implemmentation + * + * The call may indicate access to the meta-object of the QObject base + * class, we need to take care of this use case. + * If the QObject::qt_metacall() call returns -1, this means that the + * metacall has been handled by QObject and that there is nothing to do. + * In that case, we return immediately. Similarly, if the metacall isn't + * a slot invocation, we follow QObject's convention and return an + * identifier that can be handled by a subclass. + * + * If all goes well, we invoke the specified slot and return -1 to + * indicate that the metacall has been processed. + * + * \see \link http://doc.trolltech.com/qq/qq16-dynamicqobject.html + */ + int qt_metacall(QMetaObject::Call call, int id, void **args); + +private: + QObject* m_signalSource; + int m_nextSlotIndex; + // slot_index => connection_info, used by qt_metacall + // to recover the connection_info + QHash<int, AbstractQObjectConnection*> m_connections; + + void attachAbstractConnection(AbstractQObjectConnection* connection); +}; + +}
\ No newline at end of file |