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1 | 1 | #include <QtGui/QApplication> |
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2 | 2 | #include <QMainWindow> |
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3 | 3 | #include <qchartglobal.h> |
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4 | 4 | #include <qchartview.h> |
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5 | 5 | #include <qpieseries.h> |
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6 | 6 | #include <qpieslice.h> |
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7 | 7 | #include <QTime> |
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8 | 8 | |
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9 | 9 | QTCOMMERCIALCHART_USE_NAMESPACE |
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10 | 10 | |
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11 | 11 | class DrilldownSlice : public QPieSlice |
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12 | 12 | { |
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13 | 13 | Q_OBJECT |
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14 | 14 | |
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15 | 15 | public: |
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16 | 16 | DrilldownSlice(qreal value, QString prefix, QSeries* drilldownSeries) |
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17 | 17 | :m_drilldownSeries(drilldownSeries), |
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18 | 18 | m_prefix(prefix) |
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19 | 19 | { |
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20 | 20 | setValue(value); |
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21 | 21 | setLabelVisible(true); |
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22 | 22 | updateLabel(); |
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23 | 23 | connect(this, SIGNAL(changed()), this, SLOT(updateLabel())); |
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24 | 24 | } |
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25 | 25 | |
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26 | 26 | QSeries* drilldownSeries() const { return m_drilldownSeries; } |
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27 | 27 | |
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28 | 28 | public Q_SLOTS: |
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29 | 29 | void updateLabel() |
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30 | 30 | { |
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31 | 31 | QString label = m_prefix; |
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32 | 32 | label += " - " + QString::number(this->value())+ "e ("; |
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33 | 33 | label += QString::number(this->percentage()*100, 'f', 1) + "%)"; |
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34 | qDebug() << "updateLabel" << label; | |
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35 | 34 | setLabel(label); |
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36 | 35 | } |
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37 | 36 | |
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38 | 37 | private: |
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39 | 38 | QSeries* m_drilldownSeries; |
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40 | 39 | QString m_prefix; |
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41 | 40 | }; |
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42 | 41 | |
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43 | 42 | class DrilldownChart : public QChartView |
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44 | 43 | { |
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45 | 44 | Q_OBJECT |
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46 | 45 | public: |
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47 | 46 | explicit DrilldownChart(QWidget *parent = 0):QChartView(parent), m_currentSeries(0) {} |
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48 | 47 | |
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49 | 48 | void changeSeries(QSeries* series) |
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50 | 49 | { |
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51 | 50 | if (m_currentSeries) |
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52 | 51 | removeSeries(m_currentSeries); |
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53 | 52 | m_currentSeries = series; |
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54 | 53 | addSeries(series); |
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55 | 54 | setChartTitle(series->title()); |
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56 | 55 | } |
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57 | 56 | |
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58 | 57 | public Q_SLOTS: |
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59 | 58 | void handleSliceClicked(QPieSlice* slice) |
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60 | 59 | { |
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61 | 60 | DrilldownSlice* drilldownSlice = static_cast<DrilldownSlice*>(slice); |
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62 | 61 | changeSeries(drilldownSlice->drilldownSeries()); |
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63 | 62 | } |
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64 | 63 | |
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65 | 64 | private: |
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66 | 65 | QSeries* m_currentSeries; |
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67 | 66 | }; |
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68 | 67 | |
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69 | 68 | int main(int argc, char *argv[]) |
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70 | 69 | { |
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71 | 70 | QApplication a(argc, argv); |
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72 | 71 | |
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73 | 72 | qsrand(QTime(0,0,0).secsTo(QTime::currentTime())); |
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74 | 73 | |
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75 | 74 | QMainWindow window; |
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76 | 75 | |
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77 | 76 | DrilldownChart* drilldownChart = new DrilldownChart(&window); |
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78 | 77 | drilldownChart->setRenderHint(QPainter::Antialiasing); |
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79 | 78 | drilldownChart->setChartTheme(QChart::ChartThemeVanilla); |
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80 | 79 | |
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81 | 80 | QPieSeries* yearSeries = new QPieSeries(drilldownChart); |
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82 | 81 | yearSeries->setTitle("Sales by year - All"); |
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83 | 82 | yearSeries->setHoverHighlighting(); |
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84 | 83 | |
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85 | 84 | QList<QString> months; |
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86 | 85 | months << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun" << "Jul" << "Aug" << "Sep" << "Oct" << "Nov" << "Dec"; |
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87 | 86 | |
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88 | 87 | int max = 1000; |
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89 | 88 | |
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90 | 89 | QPieSeries* monthSeriesJane = new QPieSeries(drilldownChart); |
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91 | 90 | monthSeriesJane->setTitle("Sales by month - Jane"); |
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92 | 91 | monthSeriesJane->setHoverHighlighting(); |
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93 | 92 | foreach (QString month, months) |
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94 | 93 | *monthSeriesJane << new DrilldownSlice(qrand() % max, month, yearSeries); |
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95 | 94 | |
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96 | 95 | QPieSeries* monthSeriesJohn = new QPieSeries(drilldownChart); |
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97 | 96 | monthSeriesJohn->setTitle("Sales by month - John"); |
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98 | 97 | monthSeriesJohn->setHoverHighlighting(); |
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99 | 98 | foreach (QString month, months) |
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100 | 99 | *monthSeriesJohn << new DrilldownSlice(qrand() % max, month, yearSeries); |
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101 | 100 | |
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102 | 101 | QPieSeries* monthSeriesAxel = new QPieSeries(drilldownChart); |
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103 | 102 | monthSeriesAxel->setTitle("Sales by month - Axel"); |
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104 | 103 | monthSeriesAxel->setHoverHighlighting(); |
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105 | 104 | foreach (QString month, months) |
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106 | 105 | *monthSeriesAxel << new DrilldownSlice(qrand() % max, month, yearSeries); |
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107 | 106 | |
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108 | 107 | *yearSeries << new DrilldownSlice(monthSeriesJane->total(), "Jane", monthSeriesJane); |
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109 | 108 | *yearSeries << new DrilldownSlice(monthSeriesJohn->total(), "John", monthSeriesJohn); |
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110 | 109 | *yearSeries << new DrilldownSlice(monthSeriesAxel->total(), "Axel", monthSeriesAxel); |
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111 | 110 | |
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112 | 111 | QObject::connect(monthSeriesJane, SIGNAL(clicked(QPieSlice*)), drilldownChart, SLOT(handleSliceClicked(QPieSlice*))); |
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113 | 112 | QObject::connect(monthSeriesJohn, SIGNAL(clicked(QPieSlice*)), drilldownChart, SLOT(handleSliceClicked(QPieSlice*))); |
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114 | 113 | QObject::connect(monthSeriesAxel, SIGNAL(clicked(QPieSlice*)), drilldownChart, SLOT(handleSliceClicked(QPieSlice*))); |
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115 | 114 | QObject::connect(yearSeries, SIGNAL(clicked(QPieSlice*)), drilldownChart, SLOT(handleSliceClicked(QPieSlice*))); |
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116 | 115 | |
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117 | 116 | drilldownChart->changeSeries(yearSeries); |
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118 | 117 | |
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119 | 118 | window.setCentralWidget(drilldownChart); |
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120 | 119 | window.resize(600, 600); |
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121 | 120 | window.show(); |
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122 | 121 | |
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123 | 122 | return a.exec(); |
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124 | 123 | } |
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125 | 124 | |
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126 | 125 | #include "main.moc" |
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