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

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the examples of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

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

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

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

    27 **

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

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include "animateditem.h"

    43 

    44 #include <QtGui/qbitmap.h>

    45 #include <QtGui/qpainter.h>

    46 

    47 AnimatedPixmapItem::AnimatedPixmapItem(const QList<QPixmap> &animation,

    48                                        QGraphicsScene *scene)

    49     : QGraphicsItem(0, scene), currentFrame(0), vx(0), vy(0)

    50 {

    51     for (int i = 0; i < animation.size(); ++i) {

    52         QPixmap pixmap = animation.at(i);

    53         Frame frame;

    54         frame.pixmap = pixmap;

    55         frame.shape = QPainterPath();

    56         frame.boundingRect = pixmap.rect();

    57         frames << frame;

    58     }

    59 }

    60 

    61 void AnimatedPixmapItem::setFrame(int frame)

    62 {

    63     if (!frames.isEmpty()) {

    64         prepareGeometryChange();

    65         currentFrame = frame % frames.size();

    66     }

    67 }

    68 

    69 void AnimatedPixmapItem::advance(int phase)

    70 {

    71     if (phase == 1)

    72         moveBy(vx, vy);

    73 }

    74 

    75 QRectF AnimatedPixmapItem::boundingRect() const

    76 {

    77     return frames.at(currentFrame).boundingRect;

    78 }

    79 

    80 QPainterPath AnimatedPixmapItem::shape() const

    81 {

    82     const Frame &f = frames.at(currentFrame);

    83     if (f.shape.isEmpty()) {

    84         QPainterPath path;

    85         path.addRegion(f.pixmap.createHeuristicMask());

    86         const_cast<Frame &>(f).shape = path;

    87     }

    88     return f.shape;

    89 }

    90 

    91 void AnimatedPixmapItem::paint(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/,

    92                                QWidget * /*widget*/)

    93 {

    94     painter->drawPixmap(0, 0, frames.at(currentFrame).pixmap);

    95 }