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     2 **

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

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     7 ** This file is part of the QtCore module of the Qt Toolkit.

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    13 ** contained in the Technology Preview License Agreement accompanying

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    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

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    38 ** $QT_END_LICENSE$

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

    41 

    42 #include "animation.h"

    43 

    44 #include <QPointF>

    45 #include <QIODevice>

    46 #include <QDataStream>

    47 

    48 class Frame 

    49 {

    50 public:

    51     Frame() {

    52     }

    53 

    54     int nodeCount() const 

    55     {

    56         return m_nodePositions.size();

    57     }

    58 

    59     void setNodeCount(int nodeCount)

    60     {

    61         while (nodeCount > m_nodePositions.size())

    62             m_nodePositions.append(QPointF());            

    63         

    64         while (nodeCount < m_nodePositions.size())

    65             m_nodePositions.removeLast();

    66     }

    67 

    68     QPointF nodePos(int idx) const

    69     {

    70         return m_nodePositions.at(idx);

    71     }

    72 

    73     void setNodePos(int idx, const QPointF &pos)

    74     {

    75         m_nodePositions[idx] = pos;

    76     }

    77     

    78 private:

    79     QList<QPointF> m_nodePositions;

    80 };

    81 

    82 Animation::Animation()

    83 {

    84     m_currentFrame = 0;

    85     m_frames.append(new Frame);

    86 }

    87 

    88 Animation::~Animation() 

    89 {

    90     qDeleteAll(m_frames);

    91 }

    92 

    93 void Animation::setTotalFrames(int totalFrames)

    94 {

    95     while (m_frames.size() < totalFrames)

    96         m_frames.append(new Frame);    

    97 

    98     while (totalFrames < m_frames.size())

    99         delete m_frames.takeLast();    

   100 }

   101 

   102 int Animation::totalFrames() const

   103 {

   104     return m_frames.size();

   105 }

   106 

   107 void Animation::setCurrentFrame(int currentFrame)

   108 {

   109     m_currentFrame = qMax(qMin(currentFrame, totalFrames()-1), 0);

   110 }

   111 

   112 int Animation::currentFrame() const

   113 {

   114     return m_currentFrame;

   115 }

   116 

   117 void Animation::setNodeCount(int nodeCount)

   118 {

   119     Frame *frame = m_frames.at(m_currentFrame);

   120     frame->setNodeCount(nodeCount);

   121 }

   122 

   123 int Animation::nodeCount() const

   124 {

   125     Frame *frame = m_frames.at(m_currentFrame);

   126     return frame->nodeCount();

   127 }

   128 

   129 void Animation::setNodePos(int idx, const QPointF &pos)

   130 {

   131     Frame *frame = m_frames.at(m_currentFrame);

   132     frame->setNodePos(idx, pos);

   133 }

   134 

   135 QPointF Animation::nodePos(int idx) const

   136 {

   137     Frame *frame = m_frames.at(m_currentFrame);

   138     return frame->nodePos(idx);

   139 }

   140 

   141 QString Animation::name() const

   142 {

   143     return m_name;

   144 }

   145 

   146 void Animation::setName(const QString &name)

   147 {

   148     m_name = name;

   149 }

   150 

   151 void Animation::save(QIODevice *device) const

   152 {

   153     QDataStream stream(device);

   154     stream << m_name;

   155     stream << m_frames.size();

   156     foreach (Frame *frame, m_frames) {

   157         stream << frame->nodeCount();

   158         for (int i=0; i<frame->nodeCount(); ++i)

   159             stream << frame->nodePos(i);

   160     }

   161 }

   162 

   163 void Animation::load(QIODevice *device)

   164 {

   165     if (!m_frames.isEmpty())

   166         qDeleteAll(m_frames);

   167 

   168     m_frames.clear();

   169 

   170     QDataStream stream(device);

   171     stream >> m_name;

   172     

   173     int frameCount;

   174     stream >> frameCount;

   175 

   176     for (int i=0; i<frameCount; ++i) {

   177         

   178         int nodeCount;

   179         stream >> nodeCount;

   180         

   181         Frame *frame = new Frame;

   182         frame->setNodeCount(nodeCount);

   183 

   184         for (int j=0; j<nodeCount; ++j) {

   185             QPointF pos;

   186             stream >> pos;

   187 

   188             frame->setNodePos(j, pos);

   189         }

   190 

   191         m_frames.append(frame);

   192     }

   193 }