qwidgetsvariant.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2016 The Qt Company Ltd.-
4** Contact: https://www.qt.io/licensing/-
5**-
6** This file is part of the QtWidgets module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL$-
9** Commercial License Usage-
10** Licensees holding valid commercial Qt licenses may use this file in-
11** accordance with the commercial license agreement provided with the-
12** Software or, alternatively, in accordance with the terms contained in-
13** a written agreement between you and The Qt Company. For licensing terms-
14** and conditions see https://www.qt.io/terms-conditions. For further-
15** information use the contact form at https://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 3 as published by the Free Software-
20** Foundation and appearing in the file LICENSE.LGPL3 included in the-
21** packaging of this file. Please review the following information to-
22** ensure the GNU Lesser General Public License version 3 requirements-
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.-
24**-
25** GNU General Public License Usage-
26** Alternatively, this file may be used under the terms of the GNU-
27** General Public License version 2.0 or (at your option) the GNU General-
28** Public license version 3 or any later version approved by the KDE Free-
29** Qt Foundation. The licenses are as published by the Free Software-
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3-
31** included in the packaging of this file. Please review the following-
32** information to ensure the GNU General Public License requirements will-
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and-
34** https://www.gnu.org/licenses/gpl-3.0.html.-
35**-
36** $QT_END_LICENSE$-
37**-
38****************************************************************************/-
39-
40#include "qvariant.h"-
41-
42#include "qsizepolicy.h"-
43#include "qwidget.h"-
44-
45#include "private/qvariant_p.h"-
46#include <private/qmetatype_p.h>-
47-
48QT_BEGIN_NAMESPACE-
49-
50namespace {-
51static void construct(QVariant::Private *x, const void *copy)-
52{-
53 switch (x->type) {-
54 case QVariant::SizePolicy:
never executed: case QVariant::SizePolicy:
0
55 v_construct<QSizePolicy>(x, copy);-
56 break;
never executed: break;
0
57 default:
never executed: default:
0
58 qWarning("Trying to construct an instance of an invalid type, type id: %i", x->type);-
59 x->type = QVariant::Invalid;-
60 return;
never executed: return;
0
61 }-
62 x->is_null = !copy;-
63}
never executed: end of block
0
64-
65static void clear(QVariant::Private *d)-
66{-
67 switch (d->type) {-
68 case QVariant::SizePolicy:
never executed: case QVariant::SizePolicy:
0
69 v_clear<QSizePolicy>(d);-
70 break;
never executed: break;
0
71 default:
never executed: default:
0
72 Q_ASSERT(false);-
73 return;
never executed: return;
0
74 }-
75-
76 d->type = QVariant::Invalid;-
77 d->is_null = true;-
78 d->is_shared = false;-
79}
never executed: end of block
0
80-
81-
82static bool isNull(const QVariant::Private *)-
83{-
84 return false;
never executed: return false;
0
85}-
86-
87static bool compare(const QVariant::Private *a, const QVariant::Private *b)-
88{-
89 Q_ASSERT(a->type == b->type);-
90 switch(a->type) {-
91 case QVariant::SizePolicy:
never executed: case QVariant::SizePolicy:
0
92 return *v_cast<QSizePolicy>(a) == *v_cast<QSizePolicy>(b);
never executed: return *v_cast<QSizePolicy>(a) == *v_cast<QSizePolicy>(b);
0
93 default:
never executed: default:
0
94 Q_ASSERT(false);-
95 }
never executed: end of block
0
96 return false;
never executed: return false;
0
97}-
98-
99static bool convert(const QVariant::Private *d, int type, void *result, bool *ok)-
100{-
101 Q_UNUSED(d);-
102 Q_UNUSED(type);-
103 Q_UNUSED(result);-
104 if (ok)
okDescription
TRUEnever evaluated
FALSEnever evaluated
0
105 *ok = false;
never executed: *ok = false;
0
106 return false;
never executed: return false;
0
107}-
108-
109#if !defined(QT_NO_DEBUG_STREAM)-
110static void streamDebug(QDebug dbg, const QVariant &v)-
111{-
112 QVariant::Private *d = const_cast<QVariant::Private *>(&v.data_ptr());-
113 switch (d->type) {-
114 case QVariant::SizePolicy:
never executed: case QVariant::SizePolicy:
0
115 dbg.nospace() << *v_cast<QSizePolicy>(d);-
116 break;
never executed: break;
0
117 default:
never executed: default:
0
118 dbg.nospace() << "QMetaType::Type(" << d->type << ')';-
119 }
never executed: end of block
0
120}-
121#endif-
122-
123static const QVariant::Handler widgets_handler = {-
124 construct,-
125 clear,-
126 isNull,-
127#ifndef QT_NO_DATASTREAM-
128 0,-
129 0,-
130#endif-
131 compare,-
132 convert,-
133 0,-
134#if !defined(QT_NO_DEBUG_STREAM)-
135 streamDebug-
136#else-
137 0-
138#endif-
139};-
140-
141#define QT_IMPL_METATYPEINTERFACE_WIDGETS_TYPES(MetaTypeName, MetaTypeId, RealName) \-
142 QT_METATYPE_INTERFACE_INIT(RealName),-
143-
144static const QMetaTypeInterface qVariantWidgetsHelper[] = {-
145 QT_FOR_EACH_STATIC_WIDGETS_CLASS(QT_IMPL_METATYPEINTERFACE_WIDGETS_TYPES)-
146};-
147-
148#undef QT_IMPL_METATYPEINTERFACE_WIDGETS_TYPES-
149-
150} // namespace-
151-
152extern Q_CORE_EXPORT const QMetaTypeInterface *qMetaTypeWidgetsHelper;-
153-
154void qRegisterWidgetsVariant()-
155{-
156 qRegisterMetaType<QWidget*>();-
157 qMetaTypeWidgetsHelper = qVariantWidgetsHelper;-
158 QVariantPrivate::registerHandler(QModulesPrivate::Widgets, &widgets_handler);-
159}
never executed: end of block
0
160Q_CONSTRUCTOR_FUNCTION(qRegisterWidgetsVariant)
never executed: end of block
0
161-
162QT_END_NAMESPACE-
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