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
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qqmlproxymetaobject_p.h"
#include "qqmlproperty_p.h"
QT_BEGIN_NAMESPACE
QQmlProxyMetaObject::QQmlProxyMetaObject(QObject *obj, const QList<ProxyData> *mList)
: metaObjects(mList), proxies(nullptr), parent(nullptr), object(obj)
{
metaObject = metaObjects->constFirst().metaObject;
QObjectPrivate *op = QObjectPrivate::get(obj);
if (op->metaObject)
parent = op->metaObject;
op->metaObject = this;
}
QQmlProxyMetaObject::~QQmlProxyMetaObject()
{
if (parent)
delete parent;
parent = nullptr;
if (proxies)
delete [] proxies;
proxies = nullptr;
}
QObject *QQmlProxyMetaObject::getProxy(int index)
{
if (!proxies) {
proxies = new QObject *[metaObjects->size()];
::memset(proxies, 0, sizeof(QObject *) * metaObjects->size());
}
if (!proxies[index]) {
const ProxyData &data = metaObjects->at(index);
if (!data.createFunc)
return nullptr;
QObject *proxy = data.createFunc(object);
const QMetaObject *metaObject = proxy->metaObject();
proxies[index] = proxy;
int localOffset = data.metaObject->methodOffset();
int methodOffset = metaObject->methodOffset();
int methods = metaObject->methodCount() - methodOffset;
// ### - Can this be done more optimally?
for (int jj = 0; jj < methods; ++jj) {
QMetaMethod method =
metaObject->method(jj + methodOffset);
if (method.methodType() == QMetaMethod::Signal)
QQmlPropertyPrivate::connect(proxy, methodOffset + jj, object, localOffset + jj);
}
}
return proxies[index];
}
int QQmlProxyMetaObject::metaCall(QObject *o, QMetaObject::Call c, int id, void **a)
{
Q_ASSERT(object == o);
switch (c) {
case QMetaObject::ReadProperty:
case QMetaObject::WriteProperty: {
if (id < metaObjects->constLast().propertyOffset)
break;
for (int ii = 0; ii < metaObjects->size(); ++ii) {
const int globalPropertyOffset = metaObjects->at(ii).propertyOffset;
if (id < globalPropertyOffset)
continue;
QObject *proxy = getProxy(ii);
Q_ASSERT(proxy);
const int localProxyOffset = proxy->metaObject()->propertyOffset();
const int localProxyId = id - globalPropertyOffset + localProxyOffset;
return proxy->qt_metacall(c, localProxyId, a);
}
break;
}
case QMetaObject::InvokeMetaMethod: {
if (id < metaObjects->constLast().methodOffset)
break;
QMetaMethod m = object->metaObject()->method(id);
if (m.methodType() == QMetaMethod::Signal) {
QMetaObject::activate(object, id, a);
return -1;
}
for (int ii = 0; ii < metaObjects->size(); ++ii) {
const int globalMethodOffset = metaObjects->at(ii).methodOffset;
if (id < globalMethodOffset)
continue;
QObject *proxy = getProxy(ii);
Q_ASSERT(proxy);
const int localMethodOffset = proxy->metaObject()->methodOffset();
const int localMethodId = id - globalMethodOffset + localMethodOffset;
return proxy->qt_metacall(c, localMethodId, a);
}
break;
}
case QMetaObject::CustomCall: {
if ((id & ~MaxExtensionCount) != ExtensionObjectId)
break;
int index = id & MaxExtensionCount;
if (qsizetype(index) >= metaObjects->size())
break;
a[0] = getProxy(index);
return id;
}
default:
break;
}
if (parent)
return parent->metaCall(o, c, id, a);
else
return object->qt_metacall(c, id, a);
}
QMetaObject *QQmlProxyMetaObject::toDynamicMetaObject(QObject *)
{
return metaObject;
}
void QQmlProxyMetaObject::objectDestroyed(QObject *object)
{
if (parent)
parent->objectDestroyed(object);
else
QDynamicMetaObjectData::objectDestroyed(object);
}
QT_END_NAMESPACE
|
