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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
// Copyright (C) 2023 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 <private/qqmldmabstractitemmodeldata_p.h>
QT_BEGIN_NAMESPACE
QQmlDMAbstractItemModelData::QQmlDMAbstractItemModelData(
const QQmlRefPointer<QQmlDelegateModelItemMetaType> &metaType,
VDMAbstractItemModelDataType *dataType, int index, int row, int column)
: QQmlDelegateModelItem(metaType, dataType, index, row, column)
, m_type(dataType)
{
if (index == -1)
m_cachedData.resize(m_type->propertyRoles.size());
QObjectPrivate::get(this)->metaObject = m_type;
m_type->addref();
}
int QQmlDMAbstractItemModelData::metaCall(QMetaObject::Call call, int id, void **arguments)
{
if (call == QMetaObject::ReadProperty && id >= m_type->propertyOffset) {
const int propertyIndex = id - m_type->propertyOffset;
if (index == -1) {
if (!m_cachedData.isEmpty())
*static_cast<QVariant *>(arguments[0]) = m_cachedData.at(propertyIndex);
} else if (*m_type->model) {
*static_cast<QVariant *>(arguments[0]) = value(m_type->propertyRoles.at(propertyIndex));
}
return -1;
} else if (call == QMetaObject::WriteProperty && id >= m_type->propertyOffset) {
const int propertyIndex = id - m_type->propertyOffset;
const QMetaObject *meta = metaObject();
if (index == -1) {
if (m_cachedData.size() > 1) {
m_cachedData[propertyIndex] = *static_cast<QVariant *>(arguments[0]);
QMetaObject::activate(this, meta, propertyIndex, nullptr);
} else if (m_cachedData.size() == 1) {
m_cachedData[0] = *static_cast<QVariant *>(arguments[0]);
QMetaObject::activate(this, meta, 0, nullptr);
}
} else if (*m_type->model) {
QQmlGuard<QQmlDMAbstractItemModelData> guard(this);
setValue(m_type->propertyRoles.at(propertyIndex), *static_cast<QVariant *>(arguments[0]));
if (guard.isNull())
return -1;
QMetaObject::activate(this, meta, propertyIndex, nullptr);
}
emit modelDataChanged();
return -1;
} else {
return qt_metacall(call, id, arguments);
}
}
void QQmlDMAbstractItemModelData::setValue(const QString &role, const QVariant &value)
{
// Used only for initialization of the cached data. Does not have to emit change signals.
if (m_type->propertyRoles.size() == 1
&& (role.isEmpty() || role == QLatin1String("modelData"))) {
// If the model has only a single role, the modelData is that role.
m_cachedData[0] = value;
return;
}
const auto it = m_type->roleNames.constFind(role.toUtf8());
if (it != m_type->roleNames.cend()) {
for (int i = 0; i < m_type->propertyRoles.size(); ++i) {
if (m_type->propertyRoles.at(i) == *it) {
m_cachedData[i] = value;
return;
}
}
}
}
bool QQmlDMAbstractItemModelData::resolveIndex(const QQmlAdaptorModel &adaptorModel, int idx)
{
if (index == -1) {
Q_ASSERT(idx >= 0);
m_cachedData.clear();
setModelIndex(idx, adaptorModel.rowAt(idx), adaptorModel.columnAt(idx));
const QMetaObject *meta = metaObject();
const int propertyCount = m_type->propertyRoles.size();
for (int i = 0; i < propertyCount; ++i)
QMetaObject::activate(this, meta, i, nullptr);
emit modelDataChanged();
return true;
} else {
return false;
}
}
QV4::ReturnedValue QQmlDMAbstractItemModelData::get_property(const QV4::FunctionObject *b, const QV4::Value *thisObject, const QV4::Value *, int)
{
QV4::Scope scope(b);
QV4::Scoped<QQmlDelegateModelItemObject> o(scope, thisObject->as<QQmlDelegateModelItemObject>());
if (!o)
return scope.engine->throwTypeError(QStringLiteral("Not a valid DelegateModel object"));
const qsizetype propertyId = static_cast<const QV4::IndexedBuiltinFunction *>(b)->d()->index;
QQmlDMAbstractItemModelData *modelData = static_cast<QQmlDMAbstractItemModelData *>(o->d()->item);
if (o->d()->item->index == -1) {
if (!modelData->m_cachedData.isEmpty())
return scope.engine->fromVariant(modelData->m_cachedData.at(propertyId));
} else if (*modelData->m_type->model) {
return scope.engine->fromVariant(
modelData->value(modelData->m_type->propertyRoles.at(propertyId)));
}
return QV4::Encode::undefined();
}
QV4::ReturnedValue QQmlDMAbstractItemModelData::set_property(const QV4::FunctionObject *b, const QV4::Value *thisObject, const QV4::Value *argv, int argc)
{
QV4::Scope scope(b);
QV4::Scoped<QQmlDelegateModelItemObject> o(scope, thisObject->as<QQmlDelegateModelItemObject>());
if (!o)
return scope.engine->throwTypeError(QStringLiteral("Not a valid DelegateModel object"));
if (!argc)
return scope.engine->throwTypeError();
const qsizetype propertyId = static_cast<const QV4::IndexedBuiltinFunction *>(b)->d()->index;
if (o->d()->item->index == -1) {
QQmlDMAbstractItemModelData *modelData = static_cast<QQmlDMAbstractItemModelData *>(o->d()->item);
if (!modelData->m_cachedData.isEmpty()) {
if (modelData->m_cachedData.size() > 1) {
modelData->m_cachedData[propertyId]
= QV4::ExecutionEngine::toVariant(argv[0], QMetaType {});
QMetaObject::activate(o->d()->item, o->d()->item->metaObject(), propertyId, nullptr);
} else if (modelData->m_cachedData.size() == 1) {
modelData->m_cachedData[0] = QV4::ExecutionEngine::toVariant(argv[0], QMetaType {});
QMetaObject::activate(o->d()->item, o->d()->item->metaObject(), 0, nullptr);
}
emit modelData->modelDataChanged();
}
}
return QV4::Encode::undefined();
}
QV4::ReturnedValue QQmlDMAbstractItemModelData::get_modelData(
const QV4::FunctionObject *b, const QV4::Value *thisObject,
const QV4::Value *argv, int argc)
{
Q_UNUSED(argv)
Q_UNUSED(argc)
QV4::Scope scope(b);
QV4::Scoped<QQmlDelegateModelItemObject> o(
scope, thisObject->as<QQmlDelegateModelItemObject>());
if (!o)
return scope.engine->throwTypeError(QStringLiteral("Not a valid DelegateModel object"));
return scope.engine->fromVariant(
static_cast<QQmlDMAbstractItemModelData *>(o->d()->item)->modelData());
}
QV4::ReturnedValue QQmlDMAbstractItemModelData::set_modelData(
const QV4::FunctionObject *b, const QV4::Value *thisObject,
const QV4::Value *argv, int argc)
{
QV4::Scope scope(b);
QV4::Scoped<QQmlDelegateModelItemObject> o(scope, thisObject->as<QQmlDelegateModelItemObject>());
if (!o)
return scope.engine->throwTypeError(QStringLiteral("Not a valid DelegateModel object"));
if (!argc)
return scope.engine->throwTypeError();
static_cast<QQmlDMAbstractItemModelData *>(o->d()->item)->setModelData(
QV4::ExecutionEngine::toVariant(argv[0], QMetaType()));
return QV4::Encode::undefined();
}
QVariant QQmlDMAbstractItemModelData::modelData() const
{
if (m_type->propertyRoles.size() == 1) {
// If the model has only a single role, the modelData is that role.
return index == -1
? m_cachedData.isEmpty() ? QVariant() : m_cachedData[0]
: value(m_type->propertyRoles[0]);
}
// If we're using context properties, the model object is also the context object.
// In that case we cannot provide modelData. Otherwise return the object itself as modelData.
return (contextData->contextObject() == this)
? QVariant()
: QVariant::fromValue(this);
}
void QQmlDMAbstractItemModelData::setModelData(const QVariant &modelData)
{
if (m_type->propertyRoles.size() != 1) {
qWarning() << "Cannot overwrite model object";
return;
}
// If the model has only a single role, the modelData is that role.
if (index == -1) {
if (m_cachedData.isEmpty())
m_cachedData.append(modelData);
else
m_cachedData[0] = modelData;
} else {
setValue(m_type->propertyRoles[0], modelData);
}
QMetaObject::activate(this, metaObject(), 0, nullptr);
emit modelDataChanged();
}
bool QQmlDMAbstractItemModelData::hasModelChildren() const
{
if (index >= 0) {
if (const QAbstractItemModel *const model = m_type->model->aim())
return model->hasChildren(model->index(row, column, m_type->model->rootIndex));
}
return false;
}
QVariant QQmlDMAbstractItemModelData::value(int role) const
{
if (const QAbstractItemModel *aim = m_type->model->aim())
return aim->index(row, column, m_type->model->rootIndex).data(role);
return QVariant();
}
void QQmlDMAbstractItemModelData::setValue(int role, const QVariant &value)
{
if (QAbstractItemModel *aim = m_type->model->aim())
aim->setData(aim->index(row, column, m_type->model->rootIndex), value, role);
}
QV4::ReturnedValue QQmlDMAbstractItemModelData::get()
{
if (m_type->prototype.isUndefined()) {
QQmlAdaptorModelEngineData * const data = QQmlAdaptorModelEngineData::get(v4);
m_type->initializeConstructor(data);
}
QV4::Scope scope(v4);
QV4::ScopedObject proto(scope, m_type->prototype.value());
QV4::ScopedObject o(scope, proto->engine()->memoryManager->allocate<QQmlDelegateModelItemObject>(this));
o->setPrototypeOf(proto);
++scriptRef;
return o.asReturnedValue();
}
QT_END_NAMESPACE
|
