/****************************************************************************

**

** 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.

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** $QT_END_LICENSE$

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****************************************************************************/

//! [0]

class Employee

{

public:

    Employee() {}

    Employee(const Employee &other);

    Employee &operator=(const Employee &other);

private:

    QString myName;

    QDate myDateOfBirth;

};

//! [0]

//! [1]

QList<QString> list;

list << "A" << "B" << "C" << "D";

QListIterator<QString> i(list);

while (i.hasNext())

    qDebug() << i.next();

//! [1]

//! [2]

QListIterator<QString> i(list);

i.toBack();

while (i.hasPrevious())

    qDebug() << i.previous();

//! [2]

//! [3]

QMutableListIterator<int> i(list);

while (i.hasNext()) {

    if (i.next() % 2 != 0)

        i.remove();

}

//! [3]

//! [4]

QMutableListIterator<int> i(list);

i.toBack();

while (i.hasPrevious()) {

    if (i.previous() % 2 != 0)

        i.remove();

}

//! [4]

//! [5]

QMutableListIterator<int> i(list);

while (i.hasNext()) {

    if (i.next() > 128)

        i.setValue(128);

}

//! [5]

//! [6]

QMutableListIterator<int> i(list);

while (i.hasNext())

    i.next() *= 2;

//! [6]

//! [7]

QMap<QString, QString> map;

map.insert("Paris", "France");

map.insert("Guatemala City", "Guatemala");

map.insert("Mexico City", "Mexico");

map.insert("Moscow", "Russia");

...

QMutableMapIterator<QString, QString> i(map);

while (i.hasNext()) {

    if (i.next().key().endsWith("City"))

        i.remove();

}

//! [7]

//! [8]

QMap<int, QWidget *> map;

QHash<int, QWidget *> hash;

QMapIterator<int, QWidget *> i(map);

while (i.hasNext()) {

    i.next();

    hash.insert(i.key(), i.value());

}

//! [8]

//! [9]

QMutableMapIterator<int, QWidget *> i(map);

while (i.findNext(widget))

    i.remove();

//! [9]

//! [10]

QList<QString> list;

list << "A" << "B" << "C" << "D";

QList<QString>::iterator i;

for (i = list.begin(); i != list.end(); ++i)

    *i = (*i).toLower();

//! [10]

//! [11]

QList<QString> list;

list << "A" << "B" << "C" << "D";

QList<QString>::iterator i = list.end();

while (i != list.begin()) {

    --i;

    *i = (*i).toLower();

}

//! [11]

//! [12]

QList<QString>::const_iterator i;

for (i = list.constBegin(); i != list.constEnd(); ++i)

    qDebug() << *i;

//! [12]

//! [13]

QMap<int, int> map;

...

QMap<int, int>::const_iterator i;

for (i = map.constBegin(); i != map.constEnd(); ++i)

    qDebug() << i.key() << ":" << i.value();

//! [13]

//! [14]

// RIGHT

const QList<int> sizes = splitter->sizes();

QList<int>::const_iterator i;

for (i = sizes.begin(); i != sizes.end(); ++i)

    ...

// WRONG

QList<int>::const_iterator i;

for (i = splitter->sizes().begin();

        i != splitter->sizes().end(); ++i)

    ...

//! [14]

//! [15]

QLinkedList<QString> list;

...

QString str;

foreach (str, list)

    qDebug() << str;

//! [15]

//! [16]

QLinkedList<QString> list;

...

QLinkedListIterator<QString> i(list);

while (i.hasNext())

    qDebug() << i.next();

//! [16]

//! [17]

QLinkedList<QString> list;

...

foreach (QString str, list)

    qDebug() << str;

//! [17]

//! [18]

QLinkedList<QString> list;

...

foreach (QString str, list) {

    if (str.isEmpty())

        break;

    qDebug() << str;

}

//! [18]

//! [19]

QMap<QString, int> map;

...

foreach (QString str, map.keys())

    qDebug() << str << ":" << map.value(str);

//! [19]

//! [20]

QMultiMap<QString, int> map;

...

foreach (QString str, map.uniqueKeys()) {

    foreach (int i, map.values(str))

        qDebug() << str << ":" << i;

}

//! [20]

//! [21]

forever {

    ...

}

//! [21]

//! [22]

CONFIG += no_keywords

//! [22]

//! [23]

QString onlyLetters(const QString &in)

{

    QString out;

    for (int j = 0; j < in.size(); ++j) {

        if (in[j].isLetter())

            out += in[j];

    }

    return out;

}

//! [23]