1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #ifndef GRAPHICSITEMFLIPPER_H

    20 #define GRAPHICSITEMFLIPPER_H

    21 

    22 #include <QtGui>

    23 

    24 // Implements a "flipping" animation between two QGraphicsItems.  The source

    25 // item should be hidden after start() is called and the target item should be 

    26 // shown in response to the finished() signal.  

    27 class GraphicsItemFlipper : public QObject {

    28   Q_OBJECT

    29 

    30 public:

    31     GraphicsItemFlipper(QGraphicsItem *parent, QGraphicsScene *scene, int duration = 500, uint updateInterval = 10, int zValue = 0);

    32     ~GraphicsItemFlipper();

    33 

    34     void start(QGraphicsView *view, QGraphicsWidget *sourceWidget, QGraphicsWidget *targetWidget, bool forward = true);

    35 

    36 signals:

    37     void starting();

    38     void finished();

    39 

    40 protected:

    41     void getPixmaps(QGraphicsView *view, QGraphicsWidget *sourceWidget, QGraphicsWidget *targetWidget);

    42 

    43 protected slots:

    44     void updateFlipStep(qreal value);

    45     void onFinished();

    46 

    47 protected:

    48     QGraphicsPixmapItem *m_pixmapItem;

    49     QPixmap *m_sourcePixmap;

    50     QPixmap *m_targetPixmap;

    51     QRectF m_sourceRect;

    52     QRectF m_targetRect;

    53     QTimeLine m_timeLine;

    54 };

    55 

    56 #endif // GRAPHICSITEMFLIPPER_H