[2] | 1 | /****************************************************************************
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| 2 | **
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[846] | 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 6 | **
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| 7 | ** This file is part of the QtTest module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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[561] | 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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[2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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[561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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[2] | 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #ifndef QSIGNALSPY_H
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| 43 | #define QSIGNALSPY_H
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| 44 |
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| 45 | #include <QtCore/qbytearray.h>
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| 46 | #include <QtCore/qlist.h>
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| 47 | #include <QtCore/qobject.h>
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| 48 | #include <QtCore/qmetaobject.h>
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| 49 | #include <QtCore/qvariant.h>
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| 50 |
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| 51 | QT_BEGIN_HEADER
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| 52 |
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| 53 | QT_BEGIN_NAMESPACE
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| 54 |
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| 55 | QT_MODULE(Test)
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| 56 |
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| 57 | class QVariant;
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| 58 |
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| 59 | /* ### Qt5: change the class to use regular BC mechanisms, such that we can
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| 60 | * implement things like suggested in task 160192. */
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| 61 | class QSignalSpy: public QObject, public QList<QList<QVariant> >
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| 62 | {
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| 63 | public:
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| 64 | QSignalSpy(QObject *obj, const char *aSignal)
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| 65 | {
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| 66 | #ifdef Q_CC_BOR
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| 67 | const int memberOffset = QObject::staticMetaObject.methodCount();
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| 68 | #else
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| 69 | static const int memberOffset = QObject::staticMetaObject.methodCount();
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| 70 | #endif
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| 71 | Q_ASSERT(obj);
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| 72 | Q_ASSERT(aSignal);
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| 73 |
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| 74 | if (((aSignal[0] - '0') & 0x03) != QSIGNAL_CODE) {
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| 75 | qWarning("QSignalSpy: Not a valid signal, use the SIGNAL macro");
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| 76 | return;
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| 77 | }
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| 78 |
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| 79 | QByteArray ba = QMetaObject::normalizedSignature(aSignal + 1);
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| 80 | const QMetaObject *mo = obj->metaObject();
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| 81 | int sigIndex = mo->indexOfMethod(ba.constData());
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| 82 | if (sigIndex < 0) {
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| 83 | qWarning("QSignalSpy: No such signal: '%s'", ba.constData());
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| 84 | return;
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| 85 | }
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| 86 |
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| 87 | if (!QMetaObject::connect(obj, sigIndex, this, memberOffset,
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| 88 | Qt::DirectConnection, 0)) {
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| 89 | qWarning("QSignalSpy: QMetaObject::connect returned false. Unable to connect.");
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| 90 | return;
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| 91 | }
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| 92 | sig = ba;
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| 93 | initArgs(mo->method(sigIndex));
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| 94 | }
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| 95 |
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| 96 | inline bool isValid() const { return !sig.isEmpty(); }
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| 97 | inline QByteArray signal() const { return sig; }
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| 98 |
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| 99 |
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| 100 | int qt_metacall(QMetaObject::Call call, int methodId, void **a)
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| 101 | {
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| 102 | methodId = QObject::qt_metacall(call, methodId, a);
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| 103 | if (methodId < 0)
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| 104 | return methodId;
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| 105 |
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| 106 | if (call == QMetaObject::InvokeMetaMethod) {
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| 107 | if (methodId == 0) {
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| 108 | appendArgs(a);
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| 109 | }
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| 110 | --methodId;
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| 111 | }
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| 112 | return methodId;
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| 113 | }
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| 114 |
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| 115 | private:
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| 116 | void initArgs(const QMetaMethod &member)
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| 117 | {
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| 118 | QList<QByteArray> params = member.parameterTypes();
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| 119 | for (int i = 0; i < params.count(); ++i) {
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| 120 | int tp = QMetaType::type(params.at(i).constData());
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| 121 | if (tp == QMetaType::Void)
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| 122 | qWarning("Don't know how to handle '%s', use qRegisterMetaType to register it.",
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| 123 | params.at(i).constData());
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| 124 | args << tp;
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| 125 | }
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| 126 | }
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| 127 |
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| 128 | void appendArgs(void **a)
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| 129 | {
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| 130 | QList<QVariant> list;
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| 131 | for (int i = 0; i < args.count(); ++i) {
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| 132 | QMetaType::Type type = static_cast<QMetaType::Type>(args.at(i));
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| 133 | list << QVariant(type, a[i + 1]);
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| 134 | }
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| 135 | append(list);
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| 136 | }
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| 137 |
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| 138 | // the full, normalized signal name
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| 139 | QByteArray sig;
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| 140 | // holds the QMetaType types for the argument list of the signal
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| 141 | QList<int> args;
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| 142 | };
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| 143 |
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| 144 | QT_END_NAMESPACE
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| 145 |
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| 146 | QT_END_HEADER
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| 147 |
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| 148 | #endif
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