Who manage the delete of the color scale ?
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1 | 1 | #include "Visualization/AxisRenderingUtils.h" |
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2 | 2 | |
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3 | 3 | #include <Data/ScalarSeries.h> |
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4 | #include <Data/SpectrogramSeries.h> | |
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4 | 5 | #include <Data/VectorSeries.h> |
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5 | 6 | |
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6 | 7 | #include <Visualization/qcustomplot.h> |
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7 | 8 | |
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8 | 9 | namespace { |
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9 | 10 | |
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10 | 11 | const auto DATETIME_FORMAT = QStringLiteral("yyyy/MM/dd hh:mm:ss:zzz"); |
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11 | 12 | |
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12 | 13 | /// Format for datetimes on a axis |
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13 | 14 | const auto DATETIME_TICKER_FORMAT = QStringLiteral("yyyy/MM/dd \nhh:mm:ss"); |
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14 | 15 | |
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15 | 16 | /// Generates the appropriate ticker for an axis, depending on whether the axis displays time or |
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16 | 17 | /// non-time data |
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17 | 18 | QSharedPointer<QCPAxisTicker> axisTicker(bool isTimeAxis) |
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18 | 19 | { |
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19 | 20 | if (isTimeAxis) { |
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20 | 21 | auto dateTicker = QSharedPointer<QCPAxisTickerDateTime>::create(); |
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21 | 22 | dateTicker->setDateTimeFormat(DATETIME_TICKER_FORMAT); |
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22 | 23 | dateTicker->setDateTimeSpec(Qt::UTC); |
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23 | 24 | |
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24 | 25 | return dateTicker; |
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25 | 26 | } |
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26 | 27 | else { |
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27 | 28 | // default ticker |
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28 | 29 | return QSharedPointer<QCPAxisTicker>::create(); |
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29 | 30 | } |
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30 | 31 | } |
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31 | 32 | |
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32 | 33 | /** |
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33 | 34 | * Sets properties of the axis passed as parameter |
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34 | 35 | * @param axis the axis to set |
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35 | 36 | * @param unit the unit to set for the axis |
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36 | 37 | * @param scaleType the scale type to set for the axis |
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37 | 38 | */ |
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38 | 39 | void setAxisProperties(QCPAxis &axis, const Unit &unit, |
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39 | 40 | QCPAxis::ScaleType scaleType = QCPAxis::stLinear) |
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40 | 41 | { |
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41 | 42 | // label (unit name) |
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42 | 43 | axis.setLabel(unit.m_Name); |
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43 | 44 | |
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44 | 45 | // scale type |
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45 | 46 | axis.setScaleType(scaleType); |
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46 | 47 | |
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47 | 48 | // ticker (depending on the type of unit) |
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48 | 49 | axis.setTicker(axisTicker(unit.m_TimeUnit)); |
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49 | 50 | } |
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50 | 51 | |
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51 | 52 | /** |
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52 | 53 | * Delegate used to set axes properties |
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53 | 54 | */ |
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54 | 55 | template <typename T, typename Enabled = void> |
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55 | 56 | struct AxisSetter { |
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56 | 57 | static void setProperties(T &, QCustomPlot &, QCPColorScale &) |
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57 | 58 | { |
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58 | 59 | // Default implementation does nothing |
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59 | 60 | } |
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60 | 61 | }; |
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61 | 62 | |
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62 | 63 | /** |
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63 | 64 | * Specialization of AxisSetter for scalars and vectors |
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64 | 65 | * @sa ScalarSeries |
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65 | 66 | * @sa VectorSeries |
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66 | 67 | */ |
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67 | 68 | template <typename T> |
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68 | 69 | struct AxisSetter<T, typename std::enable_if_t<std::is_base_of<ScalarSeries, T>::value |
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69 | 70 | or std::is_base_of<VectorSeries, T>::value> > { |
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70 | 71 | static void setProperties(T &dataSeries, QCustomPlot &plot, QCPColorScale &) |
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71 | 72 | { |
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72 | 73 | dataSeries.lockRead(); |
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73 | 74 | auto xAxisUnit = dataSeries.xAxisUnit(); |
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74 | 75 | auto valuesUnit = dataSeries.valuesUnit(); |
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75 | 76 | dataSeries.unlock(); |
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76 | 77 | |
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77 | 78 | setAxisProperties(*plot.xAxis, xAxisUnit); |
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78 | 79 | setAxisProperties(*plot.yAxis, valuesUnit); |
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79 | 80 | } |
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80 | 81 | }; |
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81 | 82 | |
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82 | 83 | /** |
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84 | * Specialization of AxisSetter for spectrograms | |
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85 | * @sa SpectrogramSeries | |
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86 | */ | |
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87 | template <typename T> | |
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88 | struct AxisSetter<T, typename std::enable_if_t<std::is_base_of<SpectrogramSeries, T>::value> > { | |
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89 | static void setProperties(T &dataSeries, QCustomPlot &plot, QCPColorScale &colorScale) | |
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90 | { | |
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91 | dataSeries.lockRead(); | |
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92 | auto xAxisUnit = dataSeries.xAxisUnit(); | |
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93 | /// @todo ALX: use iterators here | |
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94 | auto yAxisUnit = dataSeries.yAxis().unit(); | |
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95 | auto valuesUnit = dataSeries.valuesUnit(); | |
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96 | dataSeries.unlock(); | |
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97 | ||
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98 | setAxisProperties(*plot.xAxis, xAxisUnit); | |
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99 | setAxisProperties(*plot.yAxis, yAxisUnit); | |
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100 | ||
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101 | // Displays color scale in plot | |
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102 | plot.plotLayout()->insertRow(0); | |
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103 | plot.plotLayout()->addElement(0, 0, &colorScale); | |
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104 | colorScale.setType(QCPAxis::atTop); | |
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105 | colorScale.setMinimumMargins(QMargins{0, 0, 0, 0}); | |
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106 | ||
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107 | // Aligns color scale with axes | |
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108 | auto marginGroups = plot.axisRect()->marginGroups(); | |
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109 | for (auto it = marginGroups.begin(), end = marginGroups.end(); it != end; ++it) { | |
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110 | colorScale.setMarginGroup(it.key(), it.value()); | |
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111 | } | |
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112 | ||
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113 | // Set color scale properties | |
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114 | colorScale.setLabel(valuesUnit.m_Name); | |
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115 | colorScale.setDataScaleType(QCPAxis::stLogarithmic); // Logarithmic scale | |
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116 | } | |
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117 | }; | |
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118 | ||
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119 | /** | |
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83 | 120 | * Default implementation of IAxisHelper, which takes data series to set axes properties |
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84 | 121 | * @tparam T the data series' type |
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85 | 122 | */ |
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86 | 123 | template <typename T> |
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87 | 124 | struct AxisHelper : public IAxisHelper { |
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88 | 125 | explicit AxisHelper(T &dataSeries) : m_DataSeries{dataSeries} {} |
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89 | 126 | |
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90 | 127 | void setProperties(QCustomPlot &plot, QCPColorScale &colorScale) override |
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91 | 128 | { |
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92 | 129 | AxisSetter<T>::setProperties(m_DataSeries, plot, colorScale); |
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93 | 130 | } |
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94 | 131 | |
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95 | 132 | T &m_DataSeries; |
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96 | 133 | }; |
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97 | 134 | |
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98 | 135 | } // namespace |
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99 | 136 | |
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100 | 137 | QString formatValue(double value, const QCPAxis &axis) |
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101 | 138 | { |
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102 | 139 | // If the axis is a time axis, formats the value as a date |
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103 | 140 | if (auto axisTicker = qSharedPointerDynamicCast<QCPAxisTickerDateTime>(axis.ticker())) { |
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104 | 141 | return DateUtils::dateTime(value, axisTicker->dateTimeSpec()).toString(DATETIME_FORMAT); |
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105 | 142 | } |
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106 | 143 | else { |
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107 | 144 | return QString::number(value); |
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108 | 145 | } |
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109 | 146 | } |
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110 | 147 | |
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111 | 148 | std::unique_ptr<IAxisHelper> |
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112 | 149 | IAxisHelperFactory::create(std::shared_ptr<IDataSeries> dataSeries) noexcept |
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113 | 150 | { |
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114 | 151 | if (auto scalarSeries = std::dynamic_pointer_cast<ScalarSeries>(dataSeries)) { |
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115 | 152 | return std::make_unique<AxisHelper<ScalarSeries> >(*scalarSeries); |
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116 | 153 | } |
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154 | else if (auto spectrogramSeries = std::dynamic_pointer_cast<SpectrogramSeries>(dataSeries)) { | |
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155 | return std::make_unique<AxisHelper<SpectrogramSeries> >(*spectrogramSeries); | |
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156 | } | |
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117 | 157 | else if (auto vectorSeries = std::dynamic_pointer_cast<VectorSeries>(dataSeries)) { |
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118 | 158 | return std::make_unique<AxisHelper<VectorSeries> >(*vectorSeries); |
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119 | 159 | } |
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120 | 160 | else { |
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121 | 161 | return std::make_unique<AxisHelper<IDataSeries> >(*dataSeries); |
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122 | 162 | } |
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123 | 163 | } |
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1 | 1 | #include "Visualization/VisualizationGraphRenderingDelegate.h" |
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2 | 2 | #include "Visualization/AxisRenderingUtils.h" |
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3 | 3 | #include "Visualization/PlottablesRenderingUtils.h" |
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4 | 4 | #include "Visualization/VisualizationGraphWidget.h" |
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5 | 5 | #include "Visualization/qcustomplot.h" |
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6 | 6 | |
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7 | 7 | #include <Common/DateUtils.h> |
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8 | 8 | |
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9 | 9 | #include <Data/IDataSeries.h> |
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10 | 10 | |
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11 | 11 | #include <SqpApplication.h> |
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12 | 12 | |
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13 | 13 | namespace { |
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14 | 14 | |
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15 | 15 | /// Name of the axes layer in QCustomPlot |
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16 | 16 | const auto AXES_LAYER = QStringLiteral("axes"); |
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17 | 17 | |
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18 | 18 | /// Icon used to show x-axis properties |
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19 | 19 | const auto HIDE_AXIS_ICON_PATH = QStringLiteral(":/icones/down.png"); |
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20 | 20 | |
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21 | 21 | /// Name of the overlay layer in QCustomPlot |
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22 | 22 | const auto OVERLAY_LAYER = QStringLiteral("overlay"); |
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23 | 23 | |
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24 | 24 | /// Pixmap used to show x-axis properties |
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25 | 25 | const auto SHOW_AXIS_ICON_PATH = QStringLiteral(":/icones/up.png"); |
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26 | 26 | |
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27 | 27 | const auto TOOLTIP_FORMAT = QStringLiteral("key: %1\nvalue: %2"); |
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28 | 28 | |
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29 | 29 | /// Offset used to shift the tooltip of the mouse |
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30 | 30 | const auto TOOLTIP_OFFSET = QPoint{20, 20}; |
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31 | 31 | |
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32 | 32 | /// Tooltip display rectangle (the tooltip is hidden when the mouse leaves this rectangle) |
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33 | 33 | const auto TOOLTIP_RECT = QRect{10, 10, 10, 10}; |
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34 | 34 | |
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35 | 35 | /// Timeout after which the tooltip is displayed |
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36 | 36 | const auto TOOLTIP_TIMEOUT = 500; |
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37 | 37 | |
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38 | 38 | void initPointTracerStyle(QCPItemTracer &tracer) noexcept |
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39 | 39 | { |
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40 | 40 | tracer.setInterpolating(false); |
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41 | 41 | tracer.setStyle(QCPItemTracer::tsCircle); |
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42 | 42 | tracer.setSize(3); |
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43 | 43 | tracer.setPen(QPen(Qt::black)); |
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44 | 44 | tracer.setBrush(Qt::black); |
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45 | 45 | } |
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46 | 46 | |
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47 | 47 | QPixmap pixmap(const QString &iconPath) noexcept |
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48 | 48 | { |
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49 | 49 | return QIcon{iconPath}.pixmap(QSize{16, 16}); |
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50 | 50 | } |
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51 | 51 | |
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52 | 52 | void initClosePixmapStyle(QCPItemPixmap &pixmap) noexcept |
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53 | 53 | { |
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54 | 54 | // Icon |
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55 | 55 | pixmap.setPixmap( |
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56 | 56 | sqpApp->style()->standardIcon(QStyle::SP_TitleBarCloseButton).pixmap(QSize{16, 16})); |
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57 | 57 | |
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58 | 58 | // Position |
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59 | 59 | pixmap.topLeft->setType(QCPItemPosition::ptAxisRectRatio); |
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60 | 60 | pixmap.topLeft->setCoords(1, 0); |
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61 | 61 | pixmap.setClipToAxisRect(false); |
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62 | 62 | |
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63 | 63 | // Can be selected |
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64 | 64 | pixmap.setSelectable(true); |
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65 | 65 | } |
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66 | 66 | |
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67 | 67 | void initXAxisPixmapStyle(QCPItemPixmap &itemPixmap) noexcept |
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68 | 68 | { |
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69 | 69 | // Icon |
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70 | 70 | itemPixmap.setPixmap(pixmap(HIDE_AXIS_ICON_PATH)); |
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71 | 71 | |
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72 | 72 | // Position |
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73 | 73 | itemPixmap.topLeft->setType(QCPItemPosition::ptAxisRectRatio); |
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74 | 74 | itemPixmap.topLeft->setCoords(0, 1); |
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75 | 75 | itemPixmap.setClipToAxisRect(false); |
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76 | 76 | |
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77 | 77 | // Can be selected |
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78 | 78 | itemPixmap.setSelectable(true); |
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79 | 79 | } |
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80 | 80 | |
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81 | 81 | void initTitleTextStyle(QCPItemText &text) noexcept |
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82 | 82 | { |
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83 | 83 | // Font and background styles |
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84 | 84 | text.setColor(Qt::gray); |
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85 | 85 | text.setBrush(Qt::white); |
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86 | 86 | |
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87 | 87 | // Position |
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88 | 88 | text.setPositionAlignment(Qt::AlignTop | Qt::AlignLeft); |
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89 | 89 | text.position->setType(QCPItemPosition::ptAxisRectRatio); |
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90 | 90 | text.position->setCoords(0.5, 0); |
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91 | 91 | } |
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92 | 92 | |
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93 | 93 | } // namespace |
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94 | 94 | |
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95 | 95 | struct VisualizationGraphRenderingDelegate::VisualizationGraphRenderingDelegatePrivate { |
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96 | 96 | explicit VisualizationGraphRenderingDelegatePrivate(VisualizationGraphWidget &graphWidget) |
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97 | 97 | : m_Plot{graphWidget.plot()}, |
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98 | 98 | m_PointTracer{new QCPItemTracer{&m_Plot}}, |
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99 | 99 | m_TracerTimer{}, |
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100 | 100 | m_ClosePixmap{new QCPItemPixmap{&m_Plot}}, |
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101 | 101 | m_TitleText{new QCPItemText{&m_Plot}}, |
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102 | 102 | m_XAxisPixmap{new QCPItemPixmap{&m_Plot}}, |
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103 | 103 | m_ShowXAxis{true}, |
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104 | m_XAxisLabel{} | |
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104 | m_XAxisLabel{}, | |
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105 |
m_ColorScale{new QCPColorScale{&m_Plot}}
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105 | 106 | { |
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106 | 107 | initPointTracerStyle(*m_PointTracer); |
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107 | 108 | |
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108 | 109 | m_TracerTimer.setInterval(TOOLTIP_TIMEOUT); |
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109 | 110 | m_TracerTimer.setSingleShot(true); |
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110 | 111 | |
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111 | 112 | // Inits "close button" in plot overlay |
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112 | 113 | m_ClosePixmap->setLayer(OVERLAY_LAYER); |
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113 | 114 | initClosePixmapStyle(*m_ClosePixmap); |
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114 | 115 | |
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115 | 116 | // Connects pixmap selection to graph widget closing |
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116 | 117 | QObject::connect(m_ClosePixmap, &QCPItemPixmap::selectionChanged, |
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117 | 118 | [&graphWidget](bool selected) { |
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118 | 119 | if (selected) { |
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119 | 120 | graphWidget.close(); |
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120 | 121 | } |
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121 | 122 | }); |
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122 | 123 | |
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123 | 124 | // Inits graph name in plot overlay |
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124 | 125 | m_TitleText->setLayer(OVERLAY_LAYER); |
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125 | 126 | m_TitleText->setText(graphWidget.name()); |
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126 | 127 | initTitleTextStyle(*m_TitleText); |
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127 | 128 | |
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128 | 129 | // Inits "show x-axis button" in plot overlay |
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129 | 130 | m_XAxisPixmap->setLayer(OVERLAY_LAYER); |
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130 | 131 | initXAxisPixmapStyle(*m_XAxisPixmap); |
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131 | 132 | |
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132 | 133 | // Connects pixmap selection to graph x-axis showing/hiding |
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133 | 134 | QObject::connect(m_XAxisPixmap, &QCPItemPixmap::selectionChanged, [this]() { |
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134 | 135 | if (m_XAxisPixmap->selected()) { |
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135 | 136 | // Changes the selection state and refreshes the x-axis |
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136 | 137 | m_ShowXAxis = !m_ShowXAxis; |
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137 | 138 | updateXAxisState(); |
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138 | 139 | m_Plot.layer(AXES_LAYER)->replot(); |
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139 | 140 | |
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140 | 141 | // Deselects the x-axis pixmap and updates icon |
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141 | 142 | m_XAxisPixmap->setSelected(false); |
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142 | 143 | m_XAxisPixmap->setPixmap( |
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143 | 144 | pixmap(m_ShowXAxis ? HIDE_AXIS_ICON_PATH : SHOW_AXIS_ICON_PATH)); |
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144 | 145 | m_Plot.layer(OVERLAY_LAYER)->replot(); |
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145 | 146 | } |
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146 | 147 | }); |
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147 | 148 | } |
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148 | 149 | |
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149 | 150 | /// Updates state of x-axis according to the current selection of x-axis pixmap |
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150 | 151 | /// @remarks the method doesn't call plot refresh |
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151 | 152 | void updateXAxisState() noexcept |
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152 | 153 | { |
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153 | 154 | m_Plot.xAxis->setTickLabels(m_ShowXAxis); |
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154 | 155 | m_Plot.xAxis->setLabel(m_ShowXAxis ? m_XAxisLabel : QString{}); |
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155 | 156 | } |
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156 | 157 | |
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157 | 158 | QCustomPlot &m_Plot; |
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158 | 159 | QCPItemTracer *m_PointTracer; |
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159 | 160 | QTimer m_TracerTimer; |
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160 | 161 | QCPItemPixmap *m_ClosePixmap; /// Graph's close button |
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161 | 162 | QCPItemText *m_TitleText; /// Graph's title |
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162 | 163 | QCPItemPixmap *m_XAxisPixmap; |
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163 | 164 | bool m_ShowXAxis; /// X-axis properties are shown or hidden |
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164 | 165 | QString m_XAxisLabel; |
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166 | QCPColorScale *m_ColorScale; /// Color scale used for some types of graphs (as spectrograms) | |
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165 | 167 | }; |
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166 | 168 | |
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167 | 169 | VisualizationGraphRenderingDelegate::VisualizationGraphRenderingDelegate( |
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168 | 170 | VisualizationGraphWidget &graphWidget) |
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169 | 171 | : impl{spimpl::make_unique_impl<VisualizationGraphRenderingDelegatePrivate>(graphWidget)} |
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170 | 172 | { |
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171 | 173 | } |
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172 | 174 | |
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173 | 175 | void VisualizationGraphRenderingDelegate::onMouseMove(QMouseEvent *event) noexcept |
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174 | 176 | { |
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175 | 177 | // Cancels pending refresh |
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176 | 178 | impl->m_TracerTimer.disconnect(); |
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177 | 179 | |
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178 | 180 | // Reinits tracers |
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179 | 181 | impl->m_PointTracer->setGraph(nullptr); |
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180 | 182 | impl->m_PointTracer->setVisible(false); |
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181 | 183 | impl->m_Plot.replot(); |
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182 | 184 | |
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183 | 185 | // Gets the graph under the mouse position |
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184 | 186 | auto eventPos = event->pos(); |
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185 | 187 | if (auto graph = qobject_cast<QCPGraph *>(impl->m_Plot.plottableAt(eventPos))) { |
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186 | 188 | auto mouseKey = graph->keyAxis()->pixelToCoord(eventPos.x()); |
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187 | 189 | auto graphData = graph->data(); |
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188 | 190 | |
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189 | 191 | // Gets the closest data point to the mouse |
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190 | 192 | auto graphDataIt = graphData->findBegin(mouseKey); |
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191 | 193 | if (graphDataIt != graphData->constEnd()) { |
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192 | 194 | auto key = formatValue(graphDataIt->key, *graph->keyAxis()); |
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193 | 195 | auto value = formatValue(graphDataIt->value, *graph->valueAxis()); |
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194 | 196 | |
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195 | 197 | // Displays point tracer |
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196 | 198 | impl->m_PointTracer->setGraph(graph); |
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197 | 199 | impl->m_PointTracer->setGraphKey(graphDataIt->key); |
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198 | 200 | impl->m_PointTracer->setLayer( |
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199 | 201 | impl->m_Plot.layer("main")); // Tracer is set on top of the plot's main layer |
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200 | 202 | impl->m_PointTracer->setVisible(true); |
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201 | 203 | impl->m_Plot.replot(); |
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202 | 204 | |
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203 | 205 | // Starts timer to show tooltip after timeout |
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204 | 206 | auto showTooltip = [ tooltip = TOOLTIP_FORMAT.arg(key, value), eventPos, this ]() |
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205 | 207 | { |
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206 | 208 | QToolTip::showText(impl->m_Plot.mapToGlobal(eventPos) + TOOLTIP_OFFSET, tooltip, |
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207 | 209 | &impl->m_Plot, TOOLTIP_RECT); |
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208 | 210 | }; |
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209 | 211 | |
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210 | 212 | QObject::connect(&impl->m_TracerTimer, &QTimer::timeout, showTooltip); |
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211 | 213 | impl->m_TracerTimer.start(); |
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212 | 214 | } |
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213 | 215 | } |
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214 | 216 | } |
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215 | 217 | |
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216 | 218 | void VisualizationGraphRenderingDelegate::setAxesProperties( |
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217 | 219 | std::shared_ptr<IDataSeries> dataSeries) noexcept |
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218 | 220 | { |
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219 | 221 | // Stores x-axis label to be able to retrieve it when x-axis pixmap is unselected |
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220 | 222 | impl->m_XAxisLabel = dataSeries->xAxisUnit().m_Name; |
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221 | 223 | |
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222 | 224 | auto axisHelper = IAxisHelperFactory::create(dataSeries); |
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223 | 225 | axisHelper->setProperties(impl->m_Plot, *impl->m_ColorScale); |
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224 | 226 | |
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225 | 227 | // Updates x-axis state |
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226 | 228 | impl->updateXAxisState(); |
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227 | 229 | |
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228 | 230 | impl->m_Plot.layer(AXES_LAYER)->replot(); |
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229 | 231 | } |
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230 | 232 | |
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231 | 233 | void VisualizationGraphRenderingDelegate::setPlottablesProperties( |
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232 | 234 | std::shared_ptr<IDataSeries> dataSeries, PlottablesMap &plottables) noexcept |
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233 | 235 | { |
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234 | 236 | auto plottablesHelper = IPlottablesHelperFactory::create(dataSeries); |
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235 | 237 | plottablesHelper->setProperties(plottables); |
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236 | 238 | } |
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237 | 239 | |
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238 | 240 | void VisualizationGraphRenderingDelegate::showGraphOverlay(bool show) noexcept |
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239 | 241 | { |
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240 | 242 | auto overlay = impl->m_Plot.layer(OVERLAY_LAYER); |
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241 | 243 | overlay->setVisible(show); |
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242 | 244 | overlay->replot(); |
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243 | 245 | } |
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