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 QtQml 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
14 ** General Public License version 2.1 requirements will be met:
15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
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
24 ** and appearing in the file LICENSE.GPL included in the packaging of this
25 ** file. Please review the following information to ensure the GNU General
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40 ****************************************************************************/
42 #ifndef QQMLEXPRESSION_H
43 #define QQMLEXPRESSION_H
45 #include <QtQml/qqmlerror.h>
46 #include <QtQml/qqmlscriptstring.h>
48 #include <QtCore/qobject.h>
49 #include <QtCore/qvariant.h>
60 class QQmlExpressionPrivate;
61 class QQmlContextData;
62 class Q_QML_EXPORT QQmlExpression : public QObject
67 QQmlExpression(QQmlContext *, QObject *, const QString &, QObject * = 0);
68 explicit QQmlExpression(const QQmlScriptString &, QObject * = 0);
69 virtual ~QQmlExpression();
71 QQmlEngine *engine() const;
72 QQmlContext *context() const;
74 QString expression() const;
75 void setExpression(const QString &);
77 bool notifyOnValueChanged() const;
78 void setNotifyOnValueChanged(bool);
80 QString sourceFile() const;
81 int lineNumber() const;
82 int columnNumber() const;
83 void setSourceLocation(const QString &fileName, int line, int column = 0);
85 QObject *scopeObject() const;
87 bool hasError() const;
89 QQmlError error() const;
91 QVariant evaluate(bool *valueIsUndefined = 0);
97 QQmlExpression(QQmlContextData *, QObject *, const QString &,
98 QQmlExpressionPrivate &dd);
99 QQmlExpression(QQmlContextData *, QObject *, void *,
100 QQmlExpressionPrivate &dd);
101 QQmlExpression(QQmlContextData *, QObject *, const QString &, bool,
102 const QString &, int, int, QQmlExpressionPrivate &dd);
103 QQmlExpression(QQmlContextData *, QObject *, const QByteArray &, bool,
104 const QString &, int, int, QQmlExpressionPrivate &dd);
107 QQmlExpression(QQmlContextData *, QObject *, const QString &);
109 Q_DISABLE_COPY(QQmlExpression)
110 Q_DECLARE_PRIVATE(QQmlExpression)
111 friend class QQmlDebugger;
112 friend class QQmlContext;
113 friend class QQmlVME;
120 #endif // QQMLEXPRESSION_H