Long live Qt 4.5!

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diff --git a/src/gui/itemviews/qdirmodel.h b/src/gui/itemviews/qdirmodel.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDIRMODEL_H
+#define QDIRMODEL_H
+
+#include <QtCore/qabstractitemmodel.h>
+#include <QtCore/qdir.h>
+#include <QtGui/qfileiconprovider.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+#ifndef QT_NO_DIRMODEL
+
+class QDirModelPrivate;
+
+class Q_GUI_EXPORT QDirModel : public QAbstractItemModel
+{
+    Q_OBJECT
+    Q_PROPERTY(bool resolveSymlinks READ resolveSymlinks WRITE setResolveSymlinks)
+    Q_PROPERTY(bool readOnly READ isReadOnly WRITE setReadOnly)
+    Q_PROPERTY(bool lazyChildCount READ lazyChildCount WRITE setLazyChildCount)
+
+public:
+    enum Roles {
+        FileIconRole = Qt::DecorationRole,
+        FilePathRole = Qt::UserRole + 1,
+        FileNameRole
+    };
+
+    QDirModel(const QStringList &nameFilters, QDir::Filters filters,
+              QDir::SortFlags sort, QObject *parent = 0);
+    explicit QDirModel(QObject *parent = 0);
+    ~QDirModel();
+
+    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
+    QModelIndex parent(const QModelIndex &child) const;
+
+    int rowCount(const QModelIndex &parent = QModelIndex()) const;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const;
+
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
+
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
+
+    bool hasChildren(const QModelIndex &index = QModelIndex()) const;
+    Qt::ItemFlags flags(const QModelIndex &index) const;
+
+    void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
+
+    QStringList mimeTypes() const;
+    QMimeData *mimeData(const QModelIndexList &indexes) const;
+    bool dropMimeData(const QMimeData *data, Qt::DropAction action,
+                      int row, int column, const QModelIndex &parent);
+    Qt::DropActions supportedDropActions() const;
+
+    // QDirModel specific API
+
+    void setIconProvider(QFileIconProvider *provider);
+    QFileIconProvider *iconProvider() const;
+
+    void setNameFilters(const QStringList &filters);
+    QStringList nameFilters() const;
+
+    void setFilter(QDir::Filters filters);
+    QDir::Filters filter() const;
+
+    void setSorting(QDir::SortFlags sort);
+    QDir::SortFlags sorting() const;
+
+    void setResolveSymlinks(bool enable);
+    bool resolveSymlinks() const;
+
+    void setReadOnly(bool enable);
+    bool isReadOnly() const;
+
+    void setLazyChildCount(bool enable);
+    bool lazyChildCount() const;
+
+    QModelIndex index(const QString &path, int column = 0) const;
+
+    bool isDir(const QModelIndex &index) const;
+    QModelIndex mkdir(const QModelIndex &parent, const QString &name);
+    bool rmdir(const QModelIndex &index);
+    bool remove(const QModelIndex &index);
+
+    QString filePath(const QModelIndex &index) const;
+    QString fileName(const QModelIndex &index) const;
+    QIcon fileIcon(const QModelIndex &index) const;
+    QFileInfo fileInfo(const QModelIndex &index) const;
+
+#ifdef Q_NO_USING_KEYWORD
+    inline QObject *parent() const { return QObject::parent(); }
+#else
+    using QObject::parent;
+#endif
+
+public Q_SLOTS:
+    void refresh(const QModelIndex &parent = QModelIndex());
+
+protected:
+    QDirModel(QDirModelPrivate &, QObject *parent = 0);
+    friend class QFileDialogPrivate;
+
+private:
+    Q_DECLARE_PRIVATE(QDirModel)
+    Q_DISABLE_COPY(QDirModel)
+    Q_PRIVATE_SLOT(d_func(), void _q_refresh())
+};
+
+#endif // QT_NO_DIRMODEL
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QDIRMODEL_H