| 1 | /**************************************************************************** |
|---|---|
| 2 | ** |
| 3 | ** Copyright (C) 2015 The Qt Company Ltd. |
| 4 | ** Contact: http://www.qt.io/licensing/ |
| 5 | ** |
| 6 | ** This file is part of the QtContacts module of the Qt Toolkit. |
| 7 | ** |
| 8 | ** $QT_BEGIN_LICENSE:LGPL21$ |
| 9 | ** Commercial License Usage |
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| 15 | ** information use the contact form at http://www.qt.io/contact-us. |
| 16 | ** |
| 17 | ** GNU Lesser General Public License Usage |
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
| 19 | ** General Public License version 2.1 or version 3 as published by the Free |
| 20 | ** Software Foundation and appearing in the file LICENSE.LGPLv21 and |
| 21 | ** LICENSE.LGPLv3 included in the packaging of this file. Please review the |
| 22 | ** following information to ensure the GNU Lesser General Public License |
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| 24 | ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| 25 | ** |
| 26 | ** As a special exception, The Qt Company gives you certain additional |
| 27 | ** rights. These rights are described in The Qt Company LGPL Exception |
| 28 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| 29 | ** |
| 30 | ** $QT_END_LICENSE$ |
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| 32 | ****************************************************************************/ |
| 33 | |
| 34 | #include "qcontactinvalidfilter.h" |
| 35 | |
| 36 | #include "qcontactfilter_p.h" |
| 37 | |
| 38 | /*! |
| 39 | \class QContactInvalidFilter |
| 40 | \brief The QContactInvalidFilter class matches no contacts. |
| 41 | |
| 42 | \inmodule QtContacts |
| 43 | |
| 44 | \ingroup contacts-filters |
| 45 | |
| 46 | This class provides a filter which will never match any contacts |
| 47 | */ |
| 48 | |
| 49 | QT_BEGIN_NAMESPACE_CONTACTS |
| 50 | |
| 51 | class QContactInvalidFilterPrivate : public QContactFilterPrivate |
| 52 | { |
| 53 | public: |
| 54 | QContactInvalidFilterPrivate() |
| 55 | : QContactFilterPrivate() |
| 56 | { |
| 57 | } |
| 58 | |
| 59 | bool compare(const QContactFilterPrivate*) const |
| 60 | { |
| 61 | return true; // all invalid filters are alike |
| 62 | } |
| 63 | |
| 64 | QDataStream& outputToStream(QDataStream& stream, quint8 formatVersion) const |
| 65 | { |
| 66 | Q_UNUSED(formatVersion) |
| 67 | return stream; |
| 68 | } |
| 69 | |
| 70 | QDataStream& inputFromStream(QDataStream& stream, quint8 formatVersion) |
| 71 | { |
| 72 | Q_UNUSED(formatVersion) |
| 73 | return stream; |
| 74 | } |
| 75 | |
| 76 | #ifndef QT_NO_DEBUG_STREAM |
| 77 | QDebug& debugStreamOut(QDebug& dbg) const |
| 78 | { |
| 79 | dbg.nospace() << "QContactInvalidFilter()"; |
| 80 | return dbg.maybeSpace() ; |
| 81 | } |
| 82 | #endif |
| 83 | |
| 84 | /* There is no way this can be called - d is never detached */ |
| 85 | QContactFilterPrivate* clone() const |
| 86 | { |
| 87 | return new QContactInvalidFilterPrivate(); |
| 88 | } |
| 89 | |
| 90 | QContactFilter::FilterType type() const |
| 91 | { |
| 92 | return QContactFilter::InvalidFilter; |
| 93 | } |
| 94 | }; |
| 95 | |
| 96 | /*! |
| 97 | * Constructs a new invalid filter |
| 98 | */ |
| 99 | QContactInvalidFilter::QContactInvalidFilter() |
| 100 | : QContactFilter(new QContactInvalidFilterPrivate) |
| 101 | { |
| 102 | } |
| 103 | |
| 104 | /*! |
| 105 | * Constructs a new invalid filter, ignoring the \a other filter |
| 106 | */ |
| 107 | QContactInvalidFilter::QContactInvalidFilter(const QContactFilter& other) |
| 108 | : QContactFilter(new QContactInvalidFilterPrivate) |
| 109 | { |
| 110 | // Initializing a QCIF from anything is the same as just constructing a QCIF |
| 111 | Q_UNUSED(other); |
| 112 | } |
| 113 | |
| 114 | QT_END_NAMESPACE_CONTACTS |
| 115 |