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Diffstat (limited to 'qtinterface/qt4/Qt/qsignalspy.h')
| -rw-r--r-- | qtinterface/qt4/Qt/qsignalspy.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/qtinterface/qt4/Qt/qsignalspy.h b/qtinterface/qt4/Qt/qsignalspy.h new file mode 100644 index 0000000..fe36a40 --- /dev/null +++ b/qtinterface/qt4/Qt/qsignalspy.h @@ -0,0 +1,148 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtTest module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. 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. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSIGNALSPY_H +#define QSIGNALSPY_H + +#include <QtCore/qbytearray.h> +#include <QtCore/qlist.h> +#include <QtCore/qobject.h> +#include <QtCore/qmetaobject.h> +#include <QtCore/qvariant.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Test) + +class QVariant; + +/* ### Qt5: change the class to use regular BC mechanisms, such that we can + * implement things like suggested in task 160192. */ +class QSignalSpy: public QObject, public QList<QList<QVariant> > +{ +public: + QSignalSpy(QObject *obj, const char *aSignal) + { +#ifdef Q_CC_BOR + const int memberOffset = QObject::staticMetaObject.methodCount(); +#else + static const int memberOffset = QObject::staticMetaObject.methodCount(); +#endif + Q_ASSERT(obj); + Q_ASSERT(aSignal); + + if (((aSignal[0] - '0') & 0x03) != QSIGNAL_CODE) { + qWarning("QSignalSpy: Not a valid signal, use the SIGNAL macro"); + return; + } + + QByteArray ba = QMetaObject::normalizedSignature(aSignal + 1); + const QMetaObject *mo = obj->metaObject(); + int sigIndex = mo->indexOfMethod(ba.constData()); + if (sigIndex < 0) { + qWarning("QSignalSpy: No such signal: '%s'", ba.constData()); + return; + } + + if (!QMetaObject::connect(obj, sigIndex, this, memberOffset, + Qt::DirectConnection, 0)) { + qWarning("QSignalSpy: QMetaObject::connect returned false. Unable to connect."); + return; + } + sig = ba; + initArgs(mo->method(sigIndex)); + } + + inline bool isValid() const { return !sig.isEmpty(); } + inline QByteArray signal() const { return sig; } + + + int qt_metacall(QMetaObject::Call call, int methodId, void **a) + { + methodId = QObject::qt_metacall(call, methodId, a); + if (methodId < 0) + return methodId; + + if (call == QMetaObject::InvokeMetaMethod) { + if (methodId == 0) { + appendArgs(a); + } + --methodId; + } + return methodId; + } + +private: + void initArgs(const QMetaMethod &member) + { + QList<QByteArray> params = member.parameterTypes(); + for (int i = 0; i < params.count(); ++i) { + int tp = QMetaType::type(params.at(i).constData()); + if (tp == QMetaType::Void) + qWarning("Don't know how to handle '%s', use qRegisterMetaType to register it.", + params.at(i).constData()); + args << tp; + } + } + + void appendArgs(void **a) + { + QList<QVariant> list; + for (int i = 0; i < args.count(); ++i) { + QMetaType::Type type = static_cast<QMetaType::Type>(args.at(i)); + list << QVariant(type, a[i + 1]); + } + append(list); + } + + // the full, normalized signal name + QByteArray sig; + // holds the QMetaType types for the argument list of the signal + QList<int> args; +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif |