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39
40 #include "qqmlproxymetaobject_p.h"
41 #include "qqmlproperty_p.h"
42
43 QT_BEGIN_NAMESPACE
44
QQmlProxyMetaObject(QObject * obj,QList<ProxyData> * mList)45 QQmlProxyMetaObject::QQmlProxyMetaObject(QObject *obj, QList<ProxyData> *mList)
46 : metaObjects(mList), proxies(nullptr), parent(nullptr), object(obj)
47 {
48 *static_cast<QMetaObject *>(this) = *metaObjects->constFirst().metaObject;
49
50 QObjectPrivate *op = QObjectPrivate::get(obj);
51 if (op->metaObject)
52 parent = static_cast<QAbstractDynamicMetaObject*>(op->metaObject);
53
54 op->metaObject = this;
55 }
56
~QQmlProxyMetaObject()57 QQmlProxyMetaObject::~QQmlProxyMetaObject()
58 {
59 if (parent)
60 delete parent;
61 parent = nullptr;
62
63 if (proxies)
64 delete [] proxies;
65 proxies = nullptr;
66 }
67
metaCall(QObject * o,QMetaObject::Call c,int id,void ** a)68 int QQmlProxyMetaObject::metaCall(QObject *o, QMetaObject::Call c, int id, void **a)
69 {
70 Q_ASSERT(object == o);
71
72 if ((c == QMetaObject::ReadProperty ||
73 c == QMetaObject::WriteProperty) &&
74 id >= metaObjects->constLast().propertyOffset) {
75
76 for (int ii = 0; ii < metaObjects->count(); ++ii) {
77 const ProxyData &data = metaObjects->at(ii);
78 if (id >= data.propertyOffset) {
79 if (!proxies) {
80 proxies = new QObject*[metaObjects->count()];
81 ::memset(proxies, 0,
82 sizeof(QObject *) * metaObjects->count());
83 }
84
85 if (!proxies[ii]) {
86 QObject *proxy = data.createFunc(object);
87 const QMetaObject *metaObject = proxy->metaObject();
88 proxies[ii] = proxy;
89
90 int localOffset = data.metaObject->methodOffset();
91 int methodOffset = metaObject->methodOffset();
92 int methods = metaObject->methodCount() - methodOffset;
93
94 // ### - Can this be done more optimally?
95 for (int jj = 0; jj < methods; ++jj) {
96 QMetaMethod method =
97 metaObject->method(jj + methodOffset);
98 if (method.methodType() == QMetaMethod::Signal)
99 QQmlPropertyPrivate::connect(proxy, methodOffset + jj, object, localOffset + jj);
100 }
101 }
102
103 int proxyOffset = proxies[ii]->metaObject()->propertyOffset();
104 int proxyId = id - data.propertyOffset + proxyOffset;
105
106 return proxies[ii]->qt_metacall(c, proxyId, a);
107 }
108 }
109 } else if (c == QMetaObject::InvokeMetaMethod &&
110 id >= metaObjects->constLast().methodOffset) {
111 QMetaMethod m = object->metaObject()->method(id);
112 if (m.methodType() == QMetaMethod::Signal) {
113 QMetaObject::activate(object, id, a);
114 return -1;
115 }
116 }
117
118 if (parent)
119 return parent->metaCall(o, c, id, a);
120 else
121 return object->qt_metacall(c, id, a);
122 }
123
124 QT_END_NAMESPACE
125