1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtTest module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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>
#include <QtCore/qvector.h>
#include <QtTest/qtesteventloop.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QVariant;
class QSignalSpy: public QObject, public QList<QList<QVariant> >
{
public:
explicit QSignalSpy(const QObject *obj, const char *aSignal)
: m_waiting(false)
{
#ifdef Q_CC_BOR
const int memberOffset = QObject::staticMetaObject.methodCount();
#else
static const int memberOffset = QObject::staticMetaObject.methodCount();
#endif
if (!obj) {
qWarning("QSignalSpy: Cannot spy on a null object");
return;
}
if (!aSignal) {
qWarning("QSignalSpy: Null signal name is not valid");
return;
}
if (((aSignal[0] - '0') & 0x03) != QSIGNAL_CODE) {
qWarning("QSignalSpy: Not a valid signal, use the SIGNAL macro");
return;
}
const QByteArray ba = QMetaObject::normalizedSignature(aSignal + 1);
const QMetaObject * const mo = obj->metaObject();
const 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), obj);
}
inline bool isValid() const { return !sig.isEmpty(); }
inline QByteArray signal() const { return sig; }
bool wait(int timeout = 5000)
{
Q_ASSERT(!m_waiting);
const int origCount = count();
m_waiting = true;
m_loop.enterLoopMSecs(timeout);
m_waiting = false;
return count() > origCount;
}
int qt_metacall(QMetaObject::Call call, int methodId, void **a) Q_DECL_OVERRIDE
{
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)
{
initArgs(member, 0);
}
void initArgs(const QMetaMethod &member, const QObject *obj)
{
const QList<QByteArray> params = member.parameterTypes();
args.reserve(params.size());
for (int i = 0; i < params.count(); ++i) {
int tp = QMetaType::type(params.at(i).constData());
if (tp == QMetaType::UnknownType && obj) {
void *argv[] = { &tp, &i };
QMetaObject::metacall(const_cast<QObject*>(obj),
QMetaObject::RegisterMethodArgumentMetaType,
member.methodIndex(), argv);
if (tp == -1)
tp = QMetaType::UnknownType;
}
if (tp == QMetaType::UnknownType) {
Q_ASSERT(tp != QMetaType::Void); // void parameter => metaobject is corrupt
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;
list.reserve(args.count());
for (int i = 0; i < args.count(); ++i) {
const QMetaType::Type type = static_cast<QMetaType::Type>(args.at(i));
if (type == QMetaType::QVariant)
list << *reinterpret_cast<QVariant *>(a[i + 1]);
else
list << QVariant(type, a[i + 1]);
}
append(list);
if (m_waiting)
m_loop.exitLoop();
}
// the full, normalized signal name
QByteArray sig;
// holds the QMetaType types for the argument list of the signal
QVector<int> args;
QTestEventLoop m_loop;
bool m_waiting;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif
|
