1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtDeclarative module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
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17 ** In addition, as a special exception, Nokia gives you certain additional
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19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
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25 ** file. Please review the following information to ensure the GNU General
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40 ****************************************************************************/
42 #include "QtQuick1/private/qdeclarativeopenmetaobject_p.h"
43 #include "QtDeclarative/private/qdeclarativepropertycache_p.h"
44 #include "QtDeclarative/private/qdeclarativedata_p.h"
45 #include <private/qmetaobjectbuilder_p.h>
53 class QDeclarative1OpenMetaObjectTypePrivate
56 QDeclarative1OpenMetaObjectTypePrivate() : mem(0), cache(0), engine(0) {}
58 void init(const QMetaObject *metaObj);
62 QHash<QByteArray, int> names;
63 QMetaObjectBuilder mob;
65 QDeclarativePropertyCache *cache;
66 QDeclarativeEngine *engine;
67 QSet<QDeclarative1OpenMetaObject*> referers;
70 QDeclarative1OpenMetaObjectType::QDeclarative1OpenMetaObjectType(const QMetaObject *base, QDeclarativeEngine *engine)
71 : d(new QDeclarative1OpenMetaObjectTypePrivate)
77 QDeclarative1OpenMetaObjectType::~QDeclarative1OpenMetaObjectType()
87 int QDeclarative1OpenMetaObjectType::propertyOffset() const
89 return d->propertyOffset;
92 int QDeclarative1OpenMetaObjectType::signalOffset() const
94 return d->signalOffset;
97 int QDeclarative1OpenMetaObjectType::createProperty(const QByteArray &name)
99 int id = d->mob.propertyCount();
100 d->mob.addSignal("__" + QByteArray::number(id) + "()");
101 QMetaPropertyBuilder build = d->mob.addProperty(name, "QVariant", id);
102 propertyCreated(id, build);
104 d->mem = d->mob.toMetaObject();
105 d->names.insert(name, id);
106 QSet<QDeclarative1OpenMetaObject*>::iterator it = d->referers.begin();
107 while (it != d->referers.end()) {
108 QDeclarative1OpenMetaObject *omo = *it;
109 *static_cast<QMetaObject *>(omo) = *d->mem;
111 d->cache->update(d->engine, omo);
115 return d->propertyOffset + id;
118 void QDeclarative1OpenMetaObjectType::propertyCreated(int id, QMetaPropertyBuilder &builder)
120 if (d->referers.count())
121 (*d->referers.begin())->propertyCreated(id, builder);
124 void QDeclarative1OpenMetaObjectTypePrivate::init(const QMetaObject *metaObj)
127 mob.setSuperClass(metaObj);
128 mob.setClassName(metaObj->className());
129 mob.setFlags(QMetaObjectBuilder::DynamicMetaObject);
131 mem = mob.toMetaObject();
133 propertyOffset = mem->propertyOffset();
134 signalOffset = mem->methodOffset();
138 //----------------------------------------------------------------------------
140 class QDeclarative1OpenMetaObjectPrivate
143 QDeclarative1OpenMetaObjectPrivate(QDeclarative1OpenMetaObject *_q)
144 : q(_q), parent(0), type(0), cacheProperties(false) {}
146 inline QVariant &getData(int idx) {
147 while (data.count() <= idx)
148 data << QPair<QVariant, bool>(QVariant(), false);
149 QPair<QVariant, bool> &prop = data[idx];
151 prop.first = q->initialValue(idx);
157 inline void writeData(int idx, const QVariant &value) {
158 while (data.count() <= idx)
159 data << QPair<QVariant, bool>(QVariant(), false);
160 QPair<QVariant, bool> &prop = data[idx];
165 inline bool hasData(int idx) const {
166 if (idx >= data.count())
168 return data[idx].second;
172 QDeclarative1OpenMetaObject *q;
173 QAbstractDynamicMetaObject *parent;
174 QList<QPair<QVariant, bool> > data;
176 QDeclarative1OpenMetaObjectType *type;
177 bool cacheProperties;
180 QDeclarative1OpenMetaObject::QDeclarative1OpenMetaObject(QObject *obj, bool automatic)
181 : d(new QDeclarative1OpenMetaObjectPrivate(this))
183 d->autoCreate = automatic;
186 d->type = new QDeclarative1OpenMetaObjectType(obj->metaObject(), 0);
187 d->type->d->referers.insert(this);
189 QObjectPrivate *op = QObjectPrivate::get(obj);
190 d->parent = static_cast<QAbstractDynamicMetaObject *>(op->metaObject);
191 *static_cast<QMetaObject *>(this) = *d->type->d->mem;
192 op->metaObject = this;
195 QDeclarative1OpenMetaObject::QDeclarative1OpenMetaObject(QObject *obj, QDeclarative1OpenMetaObjectType *type, bool automatic)
196 : d(new QDeclarative1OpenMetaObjectPrivate(this))
198 d->autoCreate = automatic;
203 d->type->d->referers.insert(this);
205 QObjectPrivate *op = QObjectPrivate::get(obj);
206 d->parent = static_cast<QAbstractDynamicMetaObject *>(op->metaObject);
207 *static_cast<QMetaObject *>(this) = *d->type->d->mem;
208 op->metaObject = this;
211 QDeclarative1OpenMetaObject::~QDeclarative1OpenMetaObject()
215 d->type->d->referers.remove(this);
220 QDeclarative1OpenMetaObjectType *QDeclarative1OpenMetaObject::type() const
225 int QDeclarative1OpenMetaObject::metaCall(QMetaObject::Call c, int id, void **a)
227 if (( c == QMetaObject::ReadProperty || c == QMetaObject::WriteProperty)
228 && id >= d->type->d->propertyOffset) {
229 int propId = id - d->type->d->propertyOffset;
230 if (c == QMetaObject::ReadProperty) {
231 propertyRead(propId);
232 *reinterpret_cast<QVariant *>(a[0]) = d->getData(propId);
233 } else if (c == QMetaObject::WriteProperty) {
234 if (propId <= d->data.count() || d->data[propId].first != *reinterpret_cast<QVariant *>(a[0])) {
235 propertyWrite(propId);
236 d->writeData(propId, *reinterpret_cast<QVariant *>(a[0]));
237 propertyWritten(propId);
238 activate(d->object, d->type->d->signalOffset + propId, 0);
244 return d->parent->metaCall(c, id, a);
246 return d->object->qt_metacall(c, id, a);
250 QAbstractDynamicMetaObject *QDeclarative1OpenMetaObject::parent() const
255 QVariant QDeclarative1OpenMetaObject::value(int id) const
257 return d->getData(id);
260 void QDeclarative1OpenMetaObject::setValue(int id, const QVariant &value)
262 d->writeData(id, value);
263 activate(d->object, id + d->type->d->signalOffset, 0);
266 QVariant QDeclarative1OpenMetaObject::value(const QByteArray &name) const
268 QHash<QByteArray, int>::ConstIterator iter = d->type->d->names.find(name);
269 if (iter == d->type->d->names.end())
272 return d->getData(*iter);
275 QVariant &QDeclarative1OpenMetaObject::operator[](const QByteArray &name)
277 QHash<QByteArray, int>::ConstIterator iter = d->type->d->names.find(name);
278 Q_ASSERT(iter != d->type->d->names.end());
280 return d->getData(*iter);
283 QVariant &QDeclarative1OpenMetaObject::operator[](int id)
285 return d->getData(id);
288 void QDeclarative1OpenMetaObject::setValue(const QByteArray &name, const QVariant &val)
290 QHash<QByteArray, int>::ConstIterator iter = d->type->d->names.find(name);
293 if (iter == d->type->d->names.end()) {
294 id = createProperty(name.constData(), "") - d->type->d->propertyOffset;
300 QVariant &dataVal = d->getData(id);
305 activate(d->object, id + d->type->d->signalOffset, 0);
309 // returns true if this value has been initialized by a call to either value() or setValue()
310 bool QDeclarative1OpenMetaObject::hasValue(int id) const
312 return d->hasData(id);
315 void QDeclarative1OpenMetaObject::setCached(bool c)
317 if (c == d->cacheProperties || !d->type->d->engine)
320 d->cacheProperties = c;
322 QDeclarativeData *qmldata = QDeclarativeData::get(d->object, true);
323 if (d->cacheProperties) {
324 if (!d->type->d->cache)
325 d->type->d->cache = new QDeclarativePropertyCache(d->type->d->engine, this);
326 qmldata->propertyCache = d->type->d->cache;
327 d->type->d->cache->addref();
329 if (d->type->d->cache)
330 d->type->d->cache->release();
331 qmldata->propertyCache = 0;
336 int QDeclarative1OpenMetaObject::createProperty(const char *name, const char *)
339 return d->type->createProperty(name);
344 void QDeclarative1OpenMetaObject::propertyRead(int)
348 void QDeclarative1OpenMetaObject::propertyWrite(int)
352 void QDeclarative1OpenMetaObject::propertyWritten(int)
356 void QDeclarative1OpenMetaObject::propertyCreated(int, QMetaPropertyBuilder &)
360 QVariant QDeclarative1OpenMetaObject::initialValue(int)
365 int QDeclarative1OpenMetaObject::count() const
367 return d->type->d->names.count();
370 QByteArray QDeclarative1OpenMetaObject::name(int idx) const
372 Q_ASSERT(idx >= 0 && idx < d->type->d->names.count());
374 return d->type->d->mob.property(idx).name();
377 QObject *QDeclarative1OpenMetaObject::object() const