qwidgetsvariant.cpp

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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 QtWidgets module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL21$-
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 http://www.qt.io/terms-conditions. For further-
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-
23** requirements will be met: https://www.gnu.org/licenses/lgpl.html and-
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** $QT_END_LICENSE$-
31**-
32****************************************************************************/-
33-
34#include "qvariant.h"-
35-
36#include "qsizepolicy.h"-
37#include "qwidget.h"-
38-
39#include "private/qvariant_p.h"-
40#include <private/qmetatype_p.h>-
41-
42QT_BEGIN_NAMESPACE-
43-
44namespace {-
45static void construct(QVariant::Private *x, const void *copy)-
46{-
47 switch (x->type) {-
48 case QVariant::SizePolicy:
never executed: case QVariant::SizePolicy:
0
49 v_construct<QSizePolicy>(x, copy);-
50 break;
never executed: break;
0
51 default:
never executed: default:
0
52 qWarning("Trying to construct an instance of an invalid type, type id: %i", x->type);-
53 x->type = QVariant::Invalid;-
54 return;
never executed: return;
0
55 }-
56 x->is_null = !copy;-
57}
never executed: end of block
0
58-
59static void clear(QVariant::Private *d)-
60{-
61 switch (d->type) {-
62 case QVariant::SizePolicy:
never executed: case QVariant::SizePolicy:
0
63 v_clear<QSizePolicy>(d);-
64 break;
never executed: break;
0
65 default:
never executed: default:
0
66 Q_ASSERT(false);-
67 return;
never executed: return;
0
68 }-
69-
70 d->type = QVariant::Invalid;-
71 d->is_null = true;-
72 d->is_shared = false;-
73}
never executed: end of block
0
74-
75-
76static bool isNull(const QVariant::Private *)-
77{-
78 return false;
never executed: return false;
0
79}-
80-
81static bool compare(const QVariant::Private *a, const QVariant::Private *b)-
82{-
83 Q_ASSERT(a->type == b->type);-
84 switch(a->type) {-
85 case QVariant::SizePolicy:
never executed: case QVariant::SizePolicy:
0
86 return *v_cast<QSizePolicy>(a) == *v_cast<QSizePolicy>(b);
never executed: return *v_cast<QSizePolicy>(a) == *v_cast<QSizePolicy>(b);
0
87 default:
never executed: default:
0
88 Q_ASSERT(false);-
89 }
never executed: end of block
0
90 return false;
never executed: return false;
0
91}-
92-
93static bool convert(const QVariant::Private *d, int type, void *result, bool *ok)-
94{-
95 Q_UNUSED(d);-
96 Q_UNUSED(type);-
97 Q_UNUSED(result);-
98 if (ok)
okDescription
TRUEnever evaluated
FALSEnever evaluated
0
99 *ok = false;
never executed: *ok = false;
0
100 return false;
never executed: return false;
0
101}-
102-
103#if !defined(QT_NO_DEBUG_STREAM)-
104static void streamDebug(QDebug dbg, const QVariant &v)-
105{-
106 QVariant::Private *d = const_cast<QVariant::Private *>(&v.data_ptr());-
107 switch (d->type) {-
108 case QVariant::SizePolicy:
never executed: case QVariant::SizePolicy:
0
109 dbg.nospace() << *v_cast<QSizePolicy>(d);-
110 break;
never executed: break;
0
111 default:
never executed: default:
0
112 dbg.nospace() << "QMetaType::Type(" << d->type << ')';-
113 }
never executed: end of block
0
114}-
115#endif-
116-
117static const QVariant::Handler widgets_handler = {-
118 construct,-
119 clear,-
120 isNull,-
121#ifndef QT_NO_DATASTREAM-
122 0,-
123 0,-
124#endif-
125 compare,-
126 convert,-
127 0,-
128#if !defined(QT_NO_DEBUG_STREAM)-
129 streamDebug-
130#else-
131 0-
132#endif-
133};-
134-
135#define QT_IMPL_METATYPEINTERFACE_WIDGETS_TYPES(MetaTypeName, MetaTypeId, RealName) \-
136 QT_METATYPE_INTERFACE_INIT(RealName),-
137-
138static const QMetaTypeInterface qVariantWidgetsHelper[] = {-
139 QT_FOR_EACH_STATIC_WIDGETS_CLASS(QT_IMPL_METATYPEINTERFACE_WIDGETS_TYPES)-
140};-
141-
142#undef QT_IMPL_METATYPEINTERFACE_WIDGETS_TYPES-
143-
144} // namespace-
145-
146extern Q_CORE_EXPORT const QMetaTypeInterface *qMetaTypeWidgetsHelper;-
147-
148void qRegisterWidgetsVariant()-
149{-
150 qRegisterMetaType<QWidget*>();-
151 qMetaTypeWidgetsHelper = qVariantWidgetsHelper;-
152 QVariantPrivate::registerHandler(QModulesPrivate::Widgets, &widgets_handler);-
153}
never executed: end of block
0
154Q_CONSTRUCTOR_FUNCTION(qRegisterWidgetsVariant)
never executed: end of block
0
155-
156QT_END_NAMESPACE-
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