1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (developer.feedback@nokia.com)

     6 **

     7 ** This file is part of the HbWidgets module of the UI Extensions for Mobile.

     8 **

     9 ** GNU Lesser General Public License Usage

    10 ** This file may be used under the terms of the GNU Lesser General Public

    11 ** License version 2.1 as published by the Free Software Foundation and

    12 ** appearing in the file LICENSE.LGPL included in the packaging of this file.

    13 ** Please review the following information to ensure the GNU Lesser General

    14 ** Public License version 2.1 requirements will be met:

    15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    16 **

    17 ** In addition, as a special exception, Nokia gives you certain additional

    18 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    20 **

    21 ** If you have questions regarding the use of this file, please contact

    22 ** Nokia at developer.feedback@nokia.com.

    23 **

    24 ****************************************************************************/

    25 

    26 #ifndef HBTREEVIEW_H

    27 #define HBTREEVIEW_H

    28 

    29 #include <hbabstractitemview.h>

    30 #include <hbglobal.h>

    31 

    32 class HbTreeViewPrivate;

    33 class HbAbstractItemContainer;

    34 class HbAbstractViewItem;

    35 class HbTreeModelIterator;

    36 

    37 QT_BEGIN_NAMESPACE

    38 class QModelIndex;

    39 class QGraphicsSceneMouseEvent;

    40 class QAbstractItemModel;

    41 class QItemSelection;

    42 QT_END_NAMESPACE

    43 

    44 class HB_WIDGETS_EXPORT HbTreeView : public HbAbstractItemView

    45 {

    46     Q_OBJECT

    47     Q_PROPERTY(qreal indentation READ indentation WRITE setIndentation)

    48 

    49 public:

    50 

    51     explicit HbTreeView(QGraphicsItem *parent = 0);

    52     virtual ~HbTreeView();    

    53 

    54     virtual void setModel(QAbstractItemModel *model, HbAbstractViewItem *prototype = 0);

    55 

    56     virtual void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible);

    57 

    58     virtual int indexCount() const;

    59     virtual int indexPosition(const QModelIndex &index) const;

    60     virtual QModelIndex nextIndex(const QModelIndex &index) const;

    61     virtual QModelIndex previousIndex(const QModelIndex &index) const;

    62 

    63     void setExpanded(const QModelIndex &index, bool expanded);

    64     bool isExpanded(const QModelIndex &index) const;

    65 

    66     void setIndentation(qreal indentation);

    67     qreal indentation() const;

    68 

    69 public slots:

    70     void reset();

    71     void setRootIndex(const QModelIndex &index);

    72 

    73 protected:

    74     HbTreeView(HbTreeViewPrivate &dd, HbAbstractItemContainer *container, QGraphicsItem *parent);

    75 

    76     virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);

    77 

    78     virtual void currentSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);

    79 

    80     virtual void rowsInserted(const QModelIndex &parent, int start, int end);

    81     

    82     virtual void rowsAboutToBeRemoved(const QModelIndex &index, int start, int end);

    83     virtual void rowsRemoved(const QModelIndex &parent, int start, int end);

    84     

    85     virtual void columnsInserted(const QModelIndex &parent, int start, int end);

    86     virtual void columnsRemoved(const QModelIndex &parent, int start, int end);

    87 

    88     virtual void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);

    89 

    90 private:

    91     Q_DISABLE_COPY(HbTreeView)

    92     Q_DECLARE_PRIVATE_D(d_ptr, HbTreeView)

    93 };

    94 

    95 #endif // HBTREEVIEW_H