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diff --git a/src/widgets/itemviews/qtreeview.h b/src/widgets/itemviews/qtreeview.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QTREEVIEW_H
+#define QTREEVIEW_H
+
+#include <QtWidgets/qabstractitemview.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+#ifndef QT_NO_TREEVIEW
+
+class QTreeViewPrivate;
+class QHeaderView;
+
+class Q_GUI_EXPORT QTreeView : public QAbstractItemView
+{
+    Q_OBJECT
+    Q_PROPERTY(int autoExpandDelay READ autoExpandDelay WRITE setAutoExpandDelay)
+    Q_PROPERTY(int indentation READ indentation WRITE setIndentation)
+    Q_PROPERTY(bool rootIsDecorated READ rootIsDecorated WRITE setRootIsDecorated)
+    Q_PROPERTY(bool uniformRowHeights READ uniformRowHeights WRITE setUniformRowHeights)
+    Q_PROPERTY(bool itemsExpandable READ itemsExpandable WRITE setItemsExpandable)
+    Q_PROPERTY(bool sortingEnabled READ isSortingEnabled WRITE setSortingEnabled)
+    Q_PROPERTY(bool animated READ isAnimated WRITE setAnimated)
+    Q_PROPERTY(bool allColumnsShowFocus READ allColumnsShowFocus WRITE setAllColumnsShowFocus)
+    Q_PROPERTY(bool wordWrap READ wordWrap WRITE setWordWrap)
+    Q_PROPERTY(bool headerHidden READ isHeaderHidden WRITE setHeaderHidden)
+    Q_PROPERTY(bool expandsOnDoubleClick READ expandsOnDoubleClick WRITE setExpandsOnDoubleClick)
+
+public:
+    explicit QTreeView(QWidget *parent = 0);
+    ~QTreeView();
+
+    void setModel(QAbstractItemModel *model);
+    void setRootIndex(const QModelIndex &index);
+    void setSelectionModel(QItemSelectionModel *selectionModel);
+
+    QHeaderView *header() const;
+    void setHeader(QHeaderView *header);
+
+    int autoExpandDelay() const;
+    void setAutoExpandDelay(int delay);
+
+    int indentation() const;
+    void setIndentation(int i);
+
+    bool rootIsDecorated() const;
+    void setRootIsDecorated(bool show);
+
+    bool uniformRowHeights() const;
+    void setUniformRowHeights(bool uniform);
+
+    bool itemsExpandable() const;
+    void setItemsExpandable(bool enable);
+
+    bool expandsOnDoubleClick() const;
+    void setExpandsOnDoubleClick(bool enable);
+
+    int columnViewportPosition(int column) const;
+    int columnWidth(int column) const;
+    void setColumnWidth(int column, int width);
+    int columnAt(int x) const;
+
+    bool isColumnHidden(int column) const;
+    void setColumnHidden(int column, bool hide);
+
+    bool isHeaderHidden() const;
+    void setHeaderHidden(bool hide);
+
+    bool isRowHidden(int row, const QModelIndex &parent) const;
+    void setRowHidden(int row, const QModelIndex &parent, bool hide);
+
+    bool isFirstColumnSpanned(int row, const QModelIndex &parent) const;
+    void setFirstColumnSpanned(int row, const QModelIndex &parent, bool span);
+
+    bool isExpanded(const QModelIndex &index) const;
+    void setExpanded(const QModelIndex &index, bool expand);
+
+    void setSortingEnabled(bool enable);
+    bool isSortingEnabled() const;
+
+    void setAnimated(bool enable);
+    bool isAnimated() const;
+
+    void setAllColumnsShowFocus(bool enable);
+    bool allColumnsShowFocus() const;
+
+    void setWordWrap(bool on);
+    bool wordWrap() const;
+
+    void keyboardSearch(const QString &search);
+
+    QRect visualRect(const QModelIndex &index) const;
+    void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible);
+    QModelIndex indexAt(const QPoint &p) const;
+    QModelIndex indexAbove(const QModelIndex &index) const;
+    QModelIndex indexBelow(const QModelIndex &index) const;
+
+    void doItemsLayout();
+    void reset();
+
+    void sortByColumn(int column, Qt::SortOrder order);
+
+    void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
+    void selectAll();
+
+Q_SIGNALS:
+    void expanded(const QModelIndex &index);
+    void collapsed(const QModelIndex &index);
+
+public Q_SLOTS:
+    void hideColumn(int column);
+    void showColumn(int column);
+    void expand(const QModelIndex &index);
+    void collapse(const QModelIndex &index);
+    void resizeColumnToContents(int column);
+    void sortByColumn(int column);
+    void expandAll();
+    void collapseAll();
+    void expandToDepth(int depth);
+
+protected Q_SLOTS:
+    void columnResized(int column, int oldSize, int newSize);
+    void columnCountChanged(int oldCount, int newCount);
+    void columnMoved();
+    void reexpand();
+    void rowsRemoved(const QModelIndex &parent, int first, int last);
+
+protected:
+    QTreeView(QTreeViewPrivate &dd, QWidget *parent = 0);
+    void scrollContentsBy(int dx, int dy);
+    void rowsInserted(const QModelIndex &parent, int start, int end);
+    void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
+
+    QModelIndex moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers);
+    int horizontalOffset() const;
+    int verticalOffset() const;
+
+    void setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags command);
+    QRegion visualRegionForSelection(const QItemSelection &selection) const;
+    QModelIndexList selectedIndexes() const;
+
+    void timerEvent(QTimerEvent *event);
+    void paintEvent(QPaintEvent *event);
+
+    void drawTree(QPainter *painter, const QRegion &region) const;
+    virtual void drawRow(QPainter *painter,
+                         const QStyleOptionViewItem &options,
+                         const QModelIndex &index) const;
+    virtual void drawBranches(QPainter *painter,
+                              const QRect &rect,
+                              const QModelIndex &index) const;
+
+    void mousePressEvent(QMouseEvent *event);
+    void mouseReleaseEvent(QMouseEvent *event);
+    void mouseDoubleClickEvent(QMouseEvent *event);
+    void mouseMoveEvent(QMouseEvent *event);
+    void keyPressEvent(QKeyEvent *event);
+#ifndef QT_NO_DRAGANDDROP
+    void dragMoveEvent(QDragMoveEvent *event);
+#endif
+    bool viewportEvent(QEvent *event);
+
+    void updateGeometries();
+
+    int sizeHintForColumn(int column) const;
+    int indexRowSizeHint(const QModelIndex &index) const;
+    int rowHeight(const QModelIndex &index) const;
+
+    void horizontalScrollbarAction(int action);
+
+    bool isIndexHidden(const QModelIndex &index) const;
+    void selectionChanged(const QItemSelection &selected,
+                          const QItemSelection &deselected);
+    void currentChanged(const QModelIndex &current, const QModelIndex &previous);
+
+private:
+    friend class QAccessibleItemView;
+    int visualIndex(const QModelIndex &index) const;
+
+    Q_DECLARE_PRIVATE(QTreeView)
+    Q_DISABLE_COPY(QTreeView)
+#ifndef QT_NO_ANIMATION
+    Q_PRIVATE_SLOT(d_func(), void _q_endAnimatedOperation())
+#endif //QT_NO_ANIMATION
+    Q_PRIVATE_SLOT(d_func(), void _q_modelAboutToBeReset())
+    Q_PRIVATE_SLOT(d_func(), void _q_sortIndicatorChanged(int column, Qt::SortOrder order))
+};
+
+#endif // QT_NO_TREEVIEW
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QTREEVIEW_H