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authorWarwick Allison <warwick.allison@nokia.com>2010-02-24 02:42:00 (GMT)
committerWarwick Allison <warwick.allison@nokia.com>2010-02-24 02:42:00 (GMT)
commit7c76abb0dc4204043bec9b6fa315f9753a7986ae (patch)
treecee303672cfd138790645e731f2d69472564d4b7 /src/declarative/util/qdeclarativeopenmetaobject.cpp
parent4066e60e859853cfe3240245ba05271e79839506 (diff)
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Change class prefix to from QmlXXX to QDeclarativeXXX, QmlGraphicsXXX to QDeclarativeXXX.
Diffstat (limited to 'src/declarative/util/qdeclarativeopenmetaobject.cpp')
-rw-r--r--src/declarative/util/qdeclarativeopenmetaobject.cpp355
1 files changed, 355 insertions, 0 deletions
diff --git a/src/declarative/util/qdeclarativeopenmetaobject.cpp b/src/declarative/util/qdeclarativeopenmetaobject.cpp
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+++ b/src/declarative/util/qdeclarativeopenmetaobject.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdeclarativeopenmetaobject_p.h"
+#include "qdeclarativepropertycache_p.h"
+#include "qdeclarativedeclarativedata_p.h"
+#include <qmetaobjectbuilder_p.h>
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+
+class QDeclarativeOpenMetaObjectTypePrivate
+{
+public:
+ QDeclarativeOpenMetaObjectTypePrivate() : mem(0), cache(0), engine(0) {}
+
+ void init(const QMetaObject *metaObj);
+
+ int propertyOffset;
+ int signalOffset;
+ QHash<QByteArray, int> names;
+ QMetaObjectBuilder mob;
+ QMetaObject *mem;
+ QDeclarativePropertyCache *cache;
+ QDeclarativeEngine *engine;
+ QSet<QDeclarativeOpenMetaObject*> referers;
+};
+
+QDeclarativeOpenMetaObjectType::QDeclarativeOpenMetaObjectType(const QMetaObject *base, QDeclarativeEngine *engine)
+ : d(new QDeclarativeOpenMetaObjectTypePrivate)
+{
+ d->engine = engine;
+ d->init(base);
+}
+
+QDeclarativeOpenMetaObjectType::~QDeclarativeOpenMetaObjectType()
+{
+ if (d->mem)
+ qFree(d->mem);
+ if (d->cache)
+ d->cache->release();
+ delete d;
+}
+
+
+int QDeclarativeOpenMetaObjectType::propertyOffset() const
+{
+ return d->propertyOffset;
+}
+
+int QDeclarativeOpenMetaObjectType::signalOffset() const
+{
+ return d->signalOffset;
+}
+
+int QDeclarativeOpenMetaObjectType::createProperty(const QByteArray &name)
+{
+ int id = d->mob.propertyCount();
+ d->mob.addSignal("__" + QByteArray::number(id) + "()");
+ QMetaPropertyBuilder build = d->mob.addProperty(name, "QVariant", id);
+ build.setDynamic(true);
+ propertyCreated(id, build);
+ qFree(d->mem);
+ d->mem = d->mob.toMetaObject();
+ d->names.insert(name, id);
+ QSet<QDeclarativeOpenMetaObject*>::iterator it = d->referers.begin();
+ while (it != d->referers.end()) {
+ QDeclarativeOpenMetaObject *omo = *it;
+ *static_cast<QMetaObject *>(omo) = *d->mem;
+ if (d->cache)
+ d->cache->update(d->engine, omo);
+ ++it;
+ }
+
+ return d->propertyOffset + id;
+}
+
+void QDeclarativeOpenMetaObjectType::propertyCreated(int id, QMetaPropertyBuilder &builder)
+{
+ if (d->referers.count())
+ (*d->referers.begin())->propertyCreated(id, builder);
+}
+
+void QDeclarativeOpenMetaObjectTypePrivate::init(const QMetaObject *metaObj)
+{
+ if (!mem) {
+ mob.setSuperClass(metaObj);
+ mob.setClassName(metaObj->className());
+ mob.setFlags(QMetaObjectBuilder::DynamicMetaObject);
+
+ mem = mob.toMetaObject();
+
+ propertyOffset = mem->propertyOffset();
+ signalOffset = mem->methodOffset();
+ }
+}
+
+//----------------------------------------------------------------------------
+
+class QDeclarativeOpenMetaObjectPrivate
+{
+public:
+ QDeclarativeOpenMetaObjectPrivate(QDeclarativeOpenMetaObject *_q)
+ : q(_q), parent(0), type(0), cacheProperties(false) {}
+
+ inline QVariant &getData(int idx) {
+ while (data.count() <= idx)
+ data << QPair<QVariant, bool>(QVariant(), false);
+ QPair<QVariant, bool> &prop = data[idx];
+ if (!prop.second) {
+ prop.first = q->initialValue(idx);
+ prop.second = true;
+ }
+ return prop.first;
+ }
+
+ inline void writeData(int idx, const QVariant &value) {
+ while (data.count() <= idx)
+ data << QPair<QVariant, bool>(QVariant(), false);
+ QPair<QVariant, bool> &prop = data[idx];
+ prop.first = value;
+ prop.second = true;
+ }
+
+ bool autoCreate;
+ QDeclarativeOpenMetaObject *q;
+ QAbstractDynamicMetaObject *parent;
+ QList<QPair<QVariant, bool> > data;
+ QObject *object;
+ QDeclarativeOpenMetaObjectType *type;
+ bool cacheProperties;
+};
+
+QDeclarativeOpenMetaObject::QDeclarativeOpenMetaObject(QObject *obj, bool automatic)
+: d(new QDeclarativeOpenMetaObjectPrivate(this))
+{
+ d->autoCreate = automatic;
+ d->object = obj;
+
+ d->type = new QDeclarativeOpenMetaObjectType(obj->metaObject(), 0);
+ d->type->d->referers.insert(this);
+
+ QObjectPrivate *op = QObjectPrivate::get(obj);
+ *static_cast<QMetaObject *>(this) = *d->type->d->mem;
+ op->metaObject = this;
+}
+
+QDeclarativeOpenMetaObject::QDeclarativeOpenMetaObject(QObject *obj, QDeclarativeOpenMetaObjectType *type, bool automatic)
+: d(new QDeclarativeOpenMetaObjectPrivate(this))
+{
+ d->autoCreate = automatic;
+ d->object = obj;
+
+ d->type = type;
+ d->type->addref();
+ d->type->d->referers.insert(this);
+
+ QObjectPrivate *op = QObjectPrivate::get(obj);
+ *static_cast<QMetaObject *>(this) = *d->type->d->mem;
+ op->metaObject = this;
+}
+
+QDeclarativeOpenMetaObject::~QDeclarativeOpenMetaObject()
+{
+ if (d->parent)
+ delete d->parent;
+ d->type->d->referers.remove(this);
+ d->type->release();
+ delete d;
+}
+
+QDeclarativeOpenMetaObjectType *QDeclarativeOpenMetaObject::type() const
+{
+ return d->type;
+}
+
+int QDeclarativeOpenMetaObject::metaCall(QMetaObject::Call c, int id, void **a)
+{
+ if (( c == QMetaObject::ReadProperty || c == QMetaObject::WriteProperty)
+ && id >= d->type->d->propertyOffset) {
+ int propId = id - d->type->d->propertyOffset;
+ if (c == QMetaObject::ReadProperty) {
+ propertyRead(propId);
+ *reinterpret_cast<QVariant *>(a[0]) = d->getData(propId);
+ } else if (c == QMetaObject::WriteProperty) {
+ if (d->data[propId].first != *reinterpret_cast<QVariant *>(a[0])) {
+ propertyWrite(propId);
+ d->writeData(propId, *reinterpret_cast<QVariant *>(a[0]));
+ activate(d->object, d->type->d->signalOffset + propId, 0);
+ }
+ }
+ return -1;
+ } else {
+ if (d->parent)
+ return d->parent->metaCall(c, id, a);
+ else
+ return d->object->qt_metacall(c, id, a);
+ }
+}
+
+QAbstractDynamicMetaObject *QDeclarativeOpenMetaObject::parent() const
+{
+ return d->parent;
+}
+
+QVariant QDeclarativeOpenMetaObject::value(int id) const
+{
+ return d->getData(id);
+}
+
+void QDeclarativeOpenMetaObject::setValue(int id, const QVariant &value)
+{
+ d->writeData(id, value);
+ activate(d->object, id + d->type->d->signalOffset, 0);
+}
+
+QVariant QDeclarativeOpenMetaObject::value(const QByteArray &name) const
+{
+ QHash<QByteArray, int>::ConstIterator iter = d->type->d->names.find(name);
+ if (iter == d->type->d->names.end())
+ return QVariant();
+
+ return d->getData(*iter);
+}
+
+QVariant &QDeclarativeOpenMetaObject::operator[](const QByteArray &name)
+{
+ QHash<QByteArray, int>::ConstIterator iter = d->type->d->names.find(name);
+ Q_ASSERT(iter != d->type->d->names.end());
+
+ return d->getData(*iter);
+}
+
+void QDeclarativeOpenMetaObject::setValue(const QByteArray &name, const QVariant &val)
+{
+ QHash<QByteArray, int>::ConstIterator iter = d->type->d->names.find(name);
+
+ int id = -1;
+ if (iter == d->type->d->names.end()) {
+ id = d->type->createProperty(name.constData()) - d->type->d->propertyOffset;
+ } else {
+ id = *iter;
+ }
+
+ QVariant &dataVal = d->getData(id);
+ if (dataVal == val)
+ return;
+
+ dataVal = val;
+ activate(d->object, id + d->type->d->signalOffset, 0);
+}
+
+void QDeclarativeOpenMetaObject::setCached(bool c)
+{
+ if (c == d->cacheProperties || !d->type->d->engine)
+ return;
+
+ d->cacheProperties = c;
+
+ QDeclarativeDeclarativeData *qmldata = QDeclarativeDeclarativeData::get(d->object, true);
+ if (d->cacheProperties) {
+ if (!d->type->d->cache)
+ d->type->d->cache = QDeclarativePropertyCache::create(d->type->d->engine, this);
+ qmldata->propertyCache = d->type->d->cache;
+ d->type->d->cache->addref();
+ } else {
+ if (d->type->d->cache)
+ d->type->d->cache->release();
+ qmldata->propertyCache = 0;
+ }
+}
+
+
+int QDeclarativeOpenMetaObject::createProperty(const char *name, const char *)
+{
+ if (d->autoCreate)
+ return d->type->createProperty(name);
+ else
+ return -1;
+}
+
+void QDeclarativeOpenMetaObject::propertyRead(int)
+{
+}
+
+void QDeclarativeOpenMetaObject::propertyWrite(int)
+{
+}
+
+void QDeclarativeOpenMetaObject::propertyCreated(int, QMetaPropertyBuilder &)
+{
+}
+
+QVariant QDeclarativeOpenMetaObject::initialValue(int)
+{
+ return QVariant();
+}
+
+int QDeclarativeOpenMetaObject::count() const
+{
+ return d->type->d->names.count();
+}
+
+QByteArray QDeclarativeOpenMetaObject::name(int idx) const
+{
+ Q_ASSERT(idx >= 0 && idx < d->type->d->names.count());
+
+ return d->type->d->mob.property(idx).name();
+}
+
+QObject *QDeclarativeOpenMetaObject::object() const
+{
+ return d->object;
+}
+
+QT_END_NAMESPACE