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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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDECLARATIVELISTMODELWORKERAGENT_P_H
#define QDECLARATIVELISTMODELWORKERAGENT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qdeclarative.h"
#include <QtScript/qscriptvalue.h>
#include <QtGui/qevent.h>
#include <QMutex>
#include <QWaitCondition>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QDeclarativeListModel;
class QDeclarativeListModelWorkerAgent : public QObject
{
Q_OBJECT
Q_PROPERTY(int count READ count)
public:
QDeclarativeListModelWorkerAgent(QDeclarativeListModel *);
~QDeclarativeListModelWorkerAgent();
void setScriptEngine(QScriptEngine *eng);
QScriptEngine *scriptEngine() const;
void addref();
void release();
int count() const;
Q_INVOKABLE void clear();
Q_INVOKABLE void remove(int index);
Q_INVOKABLE void append(const QScriptValue &);
Q_INVOKABLE void insert(int index, const QScriptValue&);
Q_INVOKABLE QScriptValue get(int index) const;
Q_INVOKABLE void set(int index, const QScriptValue &);
Q_INVOKABLE void setProperty(int index, const QString& property, const QVariant& value);
Q_INVOKABLE void move(int from, int to, int count);
Q_INVOKABLE void sync();
struct VariantRef
{
VariantRef() : a(0) {}
VariantRef(const VariantRef &r) : a(r.a) { if (a) a->addref(); }
VariantRef(QDeclarativeListModelWorkerAgent *_a) : a(_a) { if (a) a->addref(); }
~VariantRef() { if (a) a->release(); }
VariantRef &operator=(const VariantRef &o) {
if (o.a) o.a->addref();
if (a) a->release(); a = o.a;
return *this;
}
QDeclarativeListModelWorkerAgent *a;
};
protected:
virtual bool event(QEvent *);
private:
friend class QDeclarativeWorkerScriptEnginePrivate;
QScriptEngine *m_engine;
struct Change {
enum { Inserted, Removed, Moved, Changed } type;
int index; // Inserted/Removed/Moved/Changed
int count; // Inserted/Removed/Moved/Changed
int to; // Moved
};
struct Data {
QList<Change> changes;
void clearChange();
void insertChange(int index, int count);
void removeChange(int index, int count);
void moveChange(int index, int count, int to);
void changedChange(int index, int count);
};
Data data;
struct Sync : public QEvent {
Sync() : QEvent(QEvent::User) {}
Data data;
QDeclarativeListModel *list;
};
QAtomicInt m_ref;
QDeclarativeListModel *m_orig;
QDeclarativeListModel *m_copy;
QMutex mutex;
QWaitCondition syncDone;
};
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QDeclarativeListModelWorkerAgent::VariantRef)
QT_END_HEADER
#endif // QDECLARATIVEWORKERSCRIPT_P_H
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