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50 
51 #include "animation.h"
52 
53 #include <QIODevice>
54 #include <QDataStream>
55 
56 class Frame
57 {
58 public:
59     Frame() = default;
60 
nodeCount() const61     int nodeCount() const
62     {
63         return m_nodePositions.size();
64     }
65 
setNodeCount(int nodeCount)66     void setNodeCount(int nodeCount)
67     {
68         m_nodePositions.resize(nodeCount);
69     }
70 
nodePos(int idx) const71     QPointF nodePos(int idx) const
72     {
73         return m_nodePositions.at(idx);
74     }
75 
setNodePos(int idx,const QPointF & pos)76     void setNodePos(int idx, const QPointF &pos)
77     {
78         m_nodePositions[idx] = pos;
79     }
80 
81 private:
82     QVector<QPointF> m_nodePositions;
83 };
84 
Animation()85 Animation::Animation() : m_currentFrame(0)
86 {
87     m_frames.append(new Frame);
88 }
89 
~Animation()90 Animation::~Animation()
91 {
92     qDeleteAll(m_frames);
93 }
94 
setTotalFrames(int totalFrames)95 void Animation::setTotalFrames(int totalFrames)
96 {
97     while (m_frames.size() < totalFrames)
98         m_frames.append(new Frame);
99 
100     while (totalFrames < m_frames.size())
101         delete m_frames.takeLast();
102 
103     setCurrentFrame(m_currentFrame);
104 }
105 
totalFrames() const106 int Animation::totalFrames() const
107 {
108     return m_frames.size();
109 }
110 
setCurrentFrame(int currentFrame)111 void Animation::setCurrentFrame(int currentFrame)
112 {
113     m_currentFrame = qBound(0, currentFrame, totalFrames() - 1);
114 }
115 
currentFrame() const116 int Animation::currentFrame() const
117 {
118     return m_currentFrame;
119 }
120 
setNodeCount(int nodeCount)121 void Animation::setNodeCount(int nodeCount)
122 {
123     Frame *frame = m_frames.at(m_currentFrame);
124     frame->setNodeCount(nodeCount);
125 }
126 
nodeCount() const127 int Animation::nodeCount() const
128 {
129     Frame *frame = m_frames.at(m_currentFrame);
130     return frame->nodeCount();
131 }
132 
setNodePos(int idx,const QPointF & pos)133 void Animation::setNodePos(int idx, const QPointF &pos)
134 {
135     Frame *frame = m_frames.at(m_currentFrame);
136     frame->setNodePos(idx, pos);
137 }
138 
nodePos(int idx) const139 QPointF Animation::nodePos(int idx) const
140 {
141     Frame *frame = m_frames.at(m_currentFrame);
142     return frame->nodePos(idx);
143 }
144 
name() const145 QString Animation::name() const
146 {
147     return m_name;
148 }
149 
setName(const QString & name)150 void Animation::setName(const QString &name)
151 {
152     m_name = name;
153 }
154 
save(QIODevice * device) const155 void Animation::save(QIODevice *device) const
156 {
157     QDataStream stream(device);
158     stream << m_name;
159     stream << m_frames.size();
160     for (const Frame *frame : qAsConst(m_frames)) {
161         stream << frame->nodeCount();
162         for (int i = 0; i < frame->nodeCount(); ++i)
163             stream << frame->nodePos(i);
164     }
165 }
166 
load(QIODevice * device)167 void Animation::load(QIODevice *device)
168 {
169     qDeleteAll(m_frames);
170     m_frames.clear();
171 
172     QDataStream stream(device);
173     stream >> m_name;
174 
175     int frameCount;
176     stream >> frameCount;
177 
178     for (int i = 0; i < frameCount; ++i) {
179         int nodeCount;
180         stream >> nodeCount;
181 
182         Frame *frame = new Frame;
183         frame->setNodeCount(nodeCount);
184 
185         for (int j = 0; j < nodeCount; ++j) {
186             QPointF pos;
187             stream >> pos;
188             frame->setNodePos(j, pos);
189         }
190 
191         m_frames.append(frame);
192     }
193 }
194