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**
** Copyright (C) 2012 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDECLARATIVEEXPRESSION_H
#define QDECLARATIVEEXPRESSION_H
#include <QtDeclarative/qdeclarativeerror.h>
#include <QtCore/qobject.h>
#include <QtCore/qvariant.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QString;
class QDeclarativeRefCount;
class QDeclarativeEngine;
class QDeclarativeContext;
class QDeclarativeExpressionPrivate;
class QDeclarativeContextData;
class QScriptValue;
class Q_DECLARATIVE_EXPORT QDeclarativeExpression : public QObject
{
Q_OBJECT
public:
QDeclarativeExpression();
QDeclarativeExpression(QDeclarativeContext *, QObject *, const QString &, QObject * = 0);
virtual ~QDeclarativeExpression();
QDeclarativeEngine *engine() const;
QDeclarativeContext *context() const;
QString expression() const;
void setExpression(const QString &);
bool notifyOnValueChanged() const;
void setNotifyOnValueChanged(bool);
QString sourceFile() const;
int lineNumber() const;
void setSourceLocation(const QString &fileName, int line);
QObject *scopeObject() const;
bool hasError() const;
void clearError();
QDeclarativeError error() const;
QVariant evaluate(bool *valueIsUndefined = 0);
Q_SIGNALS:
void valueChanged();
protected:
QDeclarativeExpression(QDeclarativeContextData *, QObject *, const QString &,
QDeclarativeExpressionPrivate &dd);
QDeclarativeExpression(QDeclarativeContextData *, QObject *, const QScriptValue &,
QDeclarativeExpressionPrivate &dd);
QDeclarativeExpression(QDeclarativeContextData *, void *, QDeclarativeRefCount *rc,
QObject *me, const QString &, int, QDeclarativeExpressionPrivate &dd);
private:
QDeclarativeExpression(QDeclarativeContextData *, QObject *, const QString &);
Q_DISABLE_COPY(QDeclarativeExpression)
Q_DECLARE_PRIVATE(QDeclarativeExpression)
Q_PRIVATE_SLOT(d_func(), void _q_notify())
friend class QDeclarativeDebugger;
friend class QDeclarativeContext;
friend class QDeclarativeVME;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QDECLARATIVEEXPRESSION_H
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