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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
48 QT_BEGIN_NAMESPACE
49
50 namespace {
construct(QVariant::Private * x,const void * copy)51 static void construct(QVariant::Private *x, const void *copy)
52 {
53 switch (x->type) {
54 case QMetaType::QSizePolicy:
55 v_construct<QSizePolicy>(x, copy);
56 break;
57 default:
58 qWarning("Trying to construct an instance of an invalid type, type id: %i", x->type);
59 x->type = QMetaType::UnknownType;
60 return;
61 }
62 x->is_null = !copy;
63 }
64
clear(QVariant::Private * d)65 static void clear(QVariant::Private *d)
66 {
67 switch (d->type) {
68 case QMetaType::QSizePolicy:
69 v_clear<QSizePolicy>(d);
70 break;
71 default:
72 Q_ASSERT(false);
73 return;
74 }
75
76 d->type = QMetaType::UnknownType;
77 d->is_null = true;
78 d->is_shared = false;
79 }
80
81
isNull(const QVariant::Private *)82 static bool isNull(const QVariant::Private *)
83 {
84 return false;
85 }
86
compare(const QVariant::Private * a,const QVariant::Private * b)87 static bool compare(const QVariant::Private *a, const QVariant::Private *b)
88 {
89 Q_ASSERT(a->type == b->type);
90 switch(a->type) {
91 case QMetaType::QSizePolicy:
92 return *v_cast<QSizePolicy>(a) == *v_cast<QSizePolicy>(b);
93 default:
94 Q_ASSERT(false);
95 }
96 return false;
97 }
98
convert(const QVariant::Private * d,int type,void * result,bool * ok)99 static 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)
105 *ok = false;
106 return false;
107 }
108
109 #if !defined(QT_NO_DEBUG_STREAM)
streamDebug(QDebug dbg,const QVariant & v)110 static 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 QMetaType::QSizePolicy:
115 dbg.nospace() << *v_cast<QSizePolicy>(d);
116 break;
117 default:
118 dbg.nospace() << "QMetaType::Type(" << d->type << ')';
119 }
120 }
121 #endif
122
123 static const QVariant::Handler widgets_handler = {
124 construct,
125 clear,
126 isNull,
127 #ifndef QT_NO_DATASTREAM
128 nullptr,
129 nullptr,
130 #endif
131 compare,
132 convert,
133 nullptr,
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
144 static 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
152 extern Q_CORE_EXPORT const QMetaTypeInterface *qMetaTypeWidgetsHelper;
153
qRegisterWidgetsVariant()154 void qRegisterWidgetsVariant()
155 {
156 qRegisterMetaType<QWidget*>();
157 qMetaTypeWidgetsHelper = qVariantWidgetsHelper;
158 QVariantPrivate::registerHandler(QModulesPrivate::Widgets, &widgets_handler);
159 }
160 Q_CONSTRUCTOR_FUNCTION(qRegisterWidgetsVariant)
161
162 QT_END_NAMESPACE
163