phonon/phonon/phononpimpl_p.h

0001 /*
0002     Copyright (C) 2011 Harald Sitter <sitter@kde.org>
0003
0004     This library is free software; you can redistribute it and/or
0005     modify it under the terms of the GNU Lesser General Public
0006     License as published by the Free Software Foundation; either
0007     version 2.1 of the License, or (at your option) version 3, or any
0008     later version accepted by the membership of KDE e.V. (or its
0009     successor approved by the membership of KDE e.V.), Nokia Corporation
0010     (or its successors, if any) and the KDE Free Qt Foundation, which shall
0011     act as a proxy defined in Section 6 of version 3 of the license.
0012
0013     This library is distributed in the hope that it will be useful,
0014     but WITHOUT ANY WARRANTY; without even the implied warranty of
0015     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0016     Lesser General Public License for more details.
0017
0018     You should have received a copy of the GNU Lesser General Public
0019     License along with this library.  If not, see <http://www.gnu.org/licenses/>.
0020 */
0021
0022 #ifndef PHONONPIMPL_P_H
0023 #define PHONONPIMPL_P_H
0024
0025 /**
0026  * Declares and defines helpers to access a public class.
0027  */
0028 #define P_DECLARE_PUBLIC(Class) \
0029     inline Class* q_func() { return static_cast<Class *>(q_ptr); } \
0030     inline const Class* q_func() const { return static_cast<const Class *>(q_ptr); } \
0031     friend class Class;
0032
0033 /**
0034  * Get pointer to private class instance.
0035  * \see P_DECLARE_PRIVATE
0036  */
0037 #define P_D(Class) Class##Private *const d = k_func()
0038
0039 /**
0040  * Get pointer to public class instance.
0041  * \see P_DECLARE_PUBLIC
0042  */
0043 #define P_Q(Class) Class *const q = q_func()
0044
0045 #endif // PHONONPIMPL_P_H