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

#ifndef QTREEVIEW_H

#define QTREEVIEW_H

#include <QtGui/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