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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 documentation 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \example script/calculator
+    \title QtScript Calculator Example
+
+    In this simple QtScript example, we show how to implement the
+    functionality of a calculator widget.
+
+    \image qtscript-calculator-example.png
+
+    The program logic in this example is a fairly straight port of the logic in the C++ \l{Calculator Example}.
+    The graphical user interface is defined in a UI file.
+
+    The C++ part of the example consists of four steps:
+    \list
+    \o Evaluate the script code that defines the \c{Calculator} class.
+
+    \snippet examples/script/calculator/main.cpp 0a
+    \snippet examples/script/calculator/main.cpp 0b
+
+    \o Create a widget from the UI file using QUiLoader.
+
+    \snippet examples/script/calculator/main.cpp 1
+
+    \o Call the Calculator constructor function to create a new \c{Calculator} script object, passing the widget as argument.
+
+    \snippet examples/script/calculator/main.cpp 2
+
+    \o Show the widget and start the application event loop.
+
+    \snippet examples/script/calculator/main.cpp 3
+
+    \endlist
+
+    On the script side, the \c{Calculator} constructor function
+    initializes the instance variables of the new \c{Calculator}
+    object, and connects the clicked() signal of the form's buttons
+    to corresponding functions defined in the \c{Calculator} prototype
+    object; the effect is that when a button is clicked, the proper
+    script function will be invoked to carry out the operation.
+
+    \snippet examples/script/calculator/calculator.js 0
+
+    A \c{Calculator} object is just a plain script object; it is not
+    a widget. Instead, it stores a reference to the calculator form
+    (the widget) in an instance variable, \c{ui}. The calculator
+    script functions can access components of the form by referring
+    to the proper children of the \c{ui} member.
+
+    \snippet examples/script/calculator/calculator.js 1
+
+    The digitClicked() function is called when a digit button is
+    clicked, with the input digit as argument.
+
+    \snippet examples/script/calculator/calculator.js 2
+
+    The changeSign() function shows how we retrieve the text property
+    of the calculator's display, change it appropriately, and write
+    back the new value.
+
+
+*/