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and-filter.h

00001 /*
00002  * This file is part of TelepathyQt4
00003  *
00004  * Copyright (C) 2010 Collabora Ltd. <http://www.collabora.co.uk/>
00005  * Copyright (C) 2010 Nokia Corporation
00006  *
00007  * This library is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * This library is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with this library; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00020  */
00021 
00022 #ifndef _TelepathyQt4_and_filter_h_HEADER_GUARD_
00023 #define _TelepathyQt4_and_filter_h_HEADER_GUARD_
00024 
00025 #ifndef IN_TELEPATHY_QT4_HEADER
00026 #error IN_TELEPATHY_QT4_HEADER
00027 #endif
00028 
00029 #include <TelepathyQt4/Filter>
00030 #include <TelepathyQt4/Types>
00031 
00032 namespace Tp
00033 {
00034 
00035 template <class T>
00036 class AndFilter : public Filter<T>
00037 {
00038 public:
00039     static SharedPtr<AndFilter<T> > create(
00040             const QList<SharedPtr<const Filter<T> > > &filters = QList<SharedPtr<const Filter<T> > >())
00041     {
00042         return SharedPtr<AndFilter<T> >(new AndFilter<T>(filters));
00043     }
00044 
00045     inline virtual ~AndFilter() { }
00046 
00047     inline virtual bool isValid() const
00048     {
00049         Q_FOREACH (const SharedPtr<const Filter<T> > &filter, mFilters) {
00050             if (!filter || !filter->isValid()) {
00051                 return false;
00052             }
00053         }
00054         return true;
00055     }
00056 
00057     inline virtual bool matches(const SharedPtr<T> &t) const
00058     {
00059         if (!isValid()) {
00060             return false;
00061         }
00062 
00063         Q_FOREACH (const SharedPtr<const Filter<T> > &filter, mFilters) {
00064             if (!filter->matches(t)) {
00065                 return false;
00066             }
00067         }
00068         return true;
00069     }
00070 
00071     inline QList<SharedPtr<const Filter<T> > > filters() const { return mFilters; }
00072 
00073 private:
00074     AndFilter(const QList<SharedPtr<const Filter<T> > > &filters)
00075         : Filter<T>(), mFilters(filters) { }
00076 
00077     QList<SharedPtr<const Filter<T> > > mFilters;
00078 };
00079 
00080 } // Tp
00081 
00082 #endif


Copyright © 2008-2010 Collabora Ltd. and Nokia Corporation
Telepathy-Qt4 0.5.6.1