/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QTREEWIDGETITEMITERATOR_H+
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#define QTREEWIDGETITEMITERATOR_H+
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+
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#include <QtCore/qglobal.h>+
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#include <QtCore/qscopedpointer.h>+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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QT_MODULE(Gui)+
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+
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#ifndef QT_NO_TREEWIDGET+
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+
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class QTreeWidget;+
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class QTreeWidgetItem;+
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class QTreeModel;+
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+
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class QTreeWidgetItemIteratorPrivate;+
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class Q_GUI_EXPORT QTreeWidgetItemIterator+
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{+
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    friend class QTreeModel;+
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+
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public:+
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    enum IteratorFlag {+
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        All           = 0x00000000,+
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        Hidden        = 0x00000001,+
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        NotHidden     = 0x00000002,+
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        Selected      = 0x00000004,+
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        Unselected    = 0x00000008,+
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        Selectable    = 0x00000010,+
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        NotSelectable = 0x00000020,+
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        DragEnabled   = 0x00000040,+
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        DragDisabled  = 0x00000080,+
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        DropEnabled   = 0x00000100,+
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        DropDisabled  = 0x00000200,+
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        HasChildren   = 0x00000400,+
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        NoChildren    = 0x00000800,+
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        Checked       = 0x00001000,+
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        NotChecked    = 0x00002000,+
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        Enabled       = 0x00004000,+
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        Disabled      = 0x00008000,+
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        Editable      = 0x00010000,+
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        NotEditable   = 0x00020000,+
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        UserFlag      = 0x01000000 // The first flag that can be used by the user.+
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    };+
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    Q_DECLARE_FLAGS(IteratorFlags, IteratorFlag)+
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+
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    QTreeWidgetItemIterator(const QTreeWidgetItemIterator &it);+
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    explicit QTreeWidgetItemIterator(QTreeWidget *widget, IteratorFlags flags = All);+
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    explicit QTreeWidgetItemIterator(QTreeWidgetItem *item, IteratorFlags flags = All);+
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    ~QTreeWidgetItemIterator();+
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+
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    QTreeWidgetItemIterator &operator=(const QTreeWidgetItemIterator &it);+
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+
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    QTreeWidgetItemIterator &operator++();+
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    inline const QTreeWidgetItemIterator operator++(int);+
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    inline QTreeWidgetItemIterator &operator+=(int n);+
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+
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    QTreeWidgetItemIterator &operator--();+
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    inline const QTreeWidgetItemIterator operator--(int);+
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    inline QTreeWidgetItemIterator &operator-=(int n);+
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+
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    inline QTreeWidgetItem *operator*() const;+
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+
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private:+
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    bool matchesFlags(const QTreeWidgetItem *item) const;+
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    QScopedPointer<QTreeWidgetItemIteratorPrivate> d_ptr;+
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    QTreeWidgetItem *current;+
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    IteratorFlags flags;+
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    Q_DECLARE_PRIVATE(QTreeWidgetItemIterator)+
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};+
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+
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inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator++(int)+
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{+
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    QTreeWidgetItemIterator it = *this;+
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    ++(*this);+
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    return it;+
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}+
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+
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inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator--(int)+
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{+
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    QTreeWidgetItemIterator it = *this;+
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    --(*this);+
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    return it;+
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}+
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+
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inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator+=(int n)+
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{+
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    if (n < 0)+
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        return (*this) -= (-n);+
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    while (current && n--)+
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        ++(*this);+
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    return *this;+
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}+
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+
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inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator-=(int n)+
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{+
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    if (n < 0)+
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        return (*this) += (-n);+
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    while (current && n--)+
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        --(*this);+
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    return *this;+
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}+
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+
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inline QTreeWidgetItem *QTreeWidgetItemIterator::operator*() const+
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{+
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    return current;+
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}+
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+
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Q_DECLARE_OPERATORS_FOR_FLAGS(QTreeWidgetItemIterator::IteratorFlags)+
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+
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+
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QT_END_NAMESPACE+
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#endif // QT_NO_TREEWIDGET+
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QT_END_HEADER+
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+
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#endif // QTREEWIDGETITEMITERATOR_H+
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