| @@ -29,30 +29,23 Chart::Chart(QGraphicsItem *parent, Qt::WindowFlags wFlags) | |||
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29 | 29 | m_x(0), |
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30 | 30 | m_y(1) |
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31 | 31 | { |
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32 |
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33 | qsrand((uint)now.msec()); | |
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32 | qsrand((uint) QTime::currentTime().msec()); | |
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34 | 33 | |
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35 | 34 | QObject::connect(&m_timer, SIGNAL(timeout()), this, SLOT(handleTimeout())); |
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36 | 35 | m_timer.setInterval(1000); |
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37 | 36 | |
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38 |
m_series |
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39 | QPen blue(Qt::blue); | |
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40 | blue.setWidth(3); | |
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41 | m_series0->setPen(blue); | |
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42 | ||
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43 | m_series1 = new QSplineSeries(this); | |
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37 | m_series = new QSplineSeries(this); | |
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44 | 38 | QPen green(Qt::red); |
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45 | 39 | green.setWidth(3); |
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46 |
m_series |
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40 | m_series->setPen(green); | |
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41 | m_series->append(m_x, m_y); | |
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47 | 42 | |
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48 | m_series0->append(m_x, m_y); | |
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49 | m_series1->append(m_x, m_y); | |
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43 | addSeries(m_series); | |
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50 | 44 | |
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51 | addSeries(m_series0); | |
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52 | addSeries(m_series1); | |
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53 | 45 | axisY()->setRange(-5, 5); |
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54 | 46 | axisX()->setRange(-9, 1); |
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55 | 47 | axisX()->setTicksCount(11); |
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48 | ||
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56 | 49 | m_timer.start(); |
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57 | 50 | } |
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58 | 51 | |
| @@ -65,11 +58,8 void Chart::handleTimeout() | |||
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65 | 58 | { |
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66 | 59 | m_x += m_step; |
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67 | 60 | m_y = qrand() % 5 - 2.5; |
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68 |
m_series |
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69 | m_series1->append(m_x, m_y); | |
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70 | if (m_x >= 10) { | |
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71 | m_series0->remove(m_x - 10); | |
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72 | m_series1->remove(m_x - 10); | |
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73 | } | |
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61 | m_series->append(m_x, m_y); | |
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62 | if (m_x >= 10) | |
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63 | m_series->remove(m_x - 10); | |
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74 | 64 | scrollRight(); |
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75 | 65 | } |
| @@ -26,7 +26,6 | |||
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26 | 26 | |
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27 | 27 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
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28 | 28 | class QSplineSeries; |
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29 | class QLineSeries; | |
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30 | 29 | QTCOMMERCIALCHART_END_NAMESPACE |
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31 | 30 | |
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32 | 31 | QTCOMMERCIALCHART_USE_NAMESPACE |
| @@ -44,8 +43,7 public slots: | |||
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44 | 43 | |
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45 | 44 | private: |
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46 | 45 | QTimer m_timer; |
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47 |
Q |
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48 | QSplineSeries* m_series1; | |
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46 | QSplineSeries* m_series; | |
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49 | 47 | QStringList m_titles; |
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50 | 48 | qreal m_step; |
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51 | 49 | qreal m_x; |
| @@ -1,6 +1,6 | |||
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1 | 1 | !include( ../examples.pri ) { |
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2 | 2 | error( "Couldn't find the examples.pri file!" ) |
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3 | 3 | } |
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4 | TARGET = ekgchart | |
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4 | TARGET = dynamicspline | |
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5 | 5 | HEADERS += chart.h |
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6 | 6 | SOURCES += main.cpp chart.cpp |
| @@ -30,7 +30,7 int main(int argc, char *argv[]) | |||
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30 | 30 | QApplication a(argc, argv); |
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31 | 31 | QMainWindow window; |
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32 | 32 | Chart *chart = new Chart; |
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33 |
chart->setTitle(" |
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33 | chart->setTitle("Dynamic spline chart"); | |
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34 | 34 | chart->setAnimationOptions(QChart::AllAnimations); |
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35 | 35 | QChartView chartView(chart); |
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36 | 36 | chartView.setRenderHint(QPainter::Antialiasing); |
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