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1 | 1 | #ifndef SCIQLOP_VISUALIZATIONGRAPHWIDGET_H |
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2 | 2 | #define SCIQLOP_VISUALIZATIONGRAPHWIDGET_H |
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3 | 3 | |
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4 | 4 | #include "Visualization/IVisualizationWidget.h" |
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5 | 5 | |
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6 | 6 | #include <QLoggingCategory> |
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7 | 7 | #include <QWidget> |
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8 | 8 | |
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9 | 9 | #include <memory> |
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10 | 10 | |
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11 | 11 | #include <Common/spimpl.h> |
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12 | 12 | |
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13 | 13 | Q_DECLARE_LOGGING_CATEGORY(LOG_VisualizationGraphWidget) |
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14 | 14 | |
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15 | class QCPRange; | |
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15 | 16 | class Variable; |
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16 | 17 | |
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17 | 18 | namespace Ui { |
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18 | 19 | class VisualizationGraphWidget; |
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19 | 20 | } // namespace Ui |
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20 | 21 | |
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21 | 22 | class VisualizationGraphWidget : public QWidget, public IVisualizationWidget { |
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22 | 23 | Q_OBJECT |
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23 | 24 | |
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24 | 25 | public: |
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25 | 26 | explicit VisualizationGraphWidget(const QString &name = {}, QWidget *parent = 0); |
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26 | 27 | virtual ~VisualizationGraphWidget(); |
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27 | 28 | |
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28 | 29 | void addVariable(std::shared_ptr<Variable> variable); |
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29 | 30 | |
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30 | 31 | // IVisualizationWidget interface |
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31 | 32 | void accept(IVisualizationWidgetVisitor *visitor) override; |
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32 | 33 | bool canDrop(const Variable &variable) const override; |
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33 | 34 | void close() override; |
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34 | 35 | QString name() const override; |
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35 | 36 | |
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36 | 37 | private: |
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37 | 38 | Ui::VisualizationGraphWidget *ui; |
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38 | 39 | |
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39 | 40 | class VisualizationGraphWidgetPrivate; |
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40 | 41 | spimpl::unique_impl_ptr<VisualizationGraphWidgetPrivate> impl; |
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41 | 42 | |
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42 | 43 | private slots: |
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44 | ||
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45 | void onRangeChanged(const QCPRange &t1, const QCPRange &t2); | |
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46 | ||
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43 | 47 | /// Slot called when a mouse wheel was made, to perform some processing before the zoom is done |
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44 | 48 | void onMouseWheel(QWheelEvent *event) noexcept; |
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45 | 49 | }; |
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46 | 50 | |
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47 | 51 | #endif // SCIQLOP_VISUALIZATIONGRAPHWIDGET_H |
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1 | 1 | #include "Visualization/VisualizationGraphWidget.h" |
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2 | 2 | #include "Visualization/GraphPlottablesFactory.h" |
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3 | 3 | #include "Visualization/IVisualizationWidgetVisitor.h" |
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4 | 4 | #include "ui_VisualizationGraphWidget.h" |
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5 | 5 | |
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6 | 6 | #include <Variable/Variable.h> |
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7 | ||
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8 | 7 | #include <unordered_map> |
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9 | 8 | |
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10 | 9 | Q_LOGGING_CATEGORY(LOG_VisualizationGraphWidget, "VisualizationGraphWidget") |
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11 | 10 | |
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12 | 11 | namespace { |
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13 | 12 | |
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14 | 13 | /// Key pressed to enable zoom on horizontal axis |
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15 | 14 | const auto HORIZONTAL_ZOOM_MODIFIER = Qt::NoModifier; |
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16 | 15 | |
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17 | 16 | /// Key pressed to enable zoom on vertical axis |
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18 | 17 | const auto VERTICAL_ZOOM_MODIFIER = Qt::ControlModifier; |
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19 | 18 | |
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20 | 19 | } // namespace |
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21 | 20 | |
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22 | 21 | struct VisualizationGraphWidget::VisualizationGraphWidgetPrivate { |
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23 | 22 | |
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24 | 23 | // 1 variable -> n qcpplot |
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25 | 24 | std::unordered_map<std::shared_ptr<Variable>, QCPAbstractPlottable *> m_VariableToPlotMap; |
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26 | 25 | }; |
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27 | 26 | |
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28 | 27 | VisualizationGraphWidget::VisualizationGraphWidget(const QString &name, QWidget *parent) |
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29 | 28 | : QWidget{parent}, |
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30 | 29 | ui{new Ui::VisualizationGraphWidget}, |
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31 | 30 | impl{spimpl::make_unique_impl<VisualizationGraphWidgetPrivate>()} |
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32 | 31 | { |
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33 | 32 | ui->setupUi(this); |
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34 | 33 | |
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35 | 34 | // qcpplot title |
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36 | 35 | ui->widget->plotLayout()->insertRow(0); |
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37 | 36 | ui->widget->plotLayout()->addElement(0, 0, new QCPTextElement{ui->widget, name}); |
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38 | 37 | |
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39 | 38 | // Set qcpplot properties : |
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40 | 39 | // - Drag (on x-axis) and zoom are enabled |
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41 | 40 | // - Mouse wheel on qcpplot is intercepted to determine the zoom orientation |
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42 | 41 | ui->widget->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom); |
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43 | 42 | ui->widget->axisRect()->setRangeDrag(Qt::Horizontal); |
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44 | 43 | connect(ui->widget, &QCustomPlot::mouseWheel, this, &VisualizationGraphWidget::onMouseWheel); |
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44 | connect(ui->widget->xAxis, static_cast<void (QCPAxis::*)(const QCPRange &, const QCPRange &)>( | |
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45 | &QCPAxis::rangeChanged), | |
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46 | this, &VisualizationGraphWidget::onRangeChanged); | |
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45 | 47 | } |
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46 | 48 | |
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49 | ||
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47 | 50 | VisualizationGraphWidget::~VisualizationGraphWidget() |
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48 | 51 | { |
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49 | 52 | delete ui; |
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50 | 53 | } |
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51 | 54 | |
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52 | 55 | void VisualizationGraphWidget::addVariable(std::shared_ptr<Variable> variable) |
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53 | 56 | { |
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54 | 57 | // Uses delegate to create the qcpplot components according to the variable |
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55 | 58 | auto createdPlottables = GraphPlottablesFactory::create(variable, *ui->widget); |
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56 | 59 | |
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57 | 60 | for (auto createdPlottable : qAsConst(createdPlottables)) { |
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58 | 61 | impl->m_VariableToPlotMap.insert({variable, createdPlottable}); |
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59 | 62 | } |
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60 | 63 | } |
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61 | 64 | |
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62 | 65 | void VisualizationGraphWidget::accept(IVisualizationWidgetVisitor *visitor) |
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63 | 66 | { |
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64 | 67 | if (visitor) { |
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65 | 68 | visitor->visit(this); |
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66 | 69 | } |
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67 | 70 | else { |
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68 | 71 | qCCritical(LOG_VisualizationGraphWidget()) |
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69 | 72 | << tr("Can't visit widget : the visitor is null"); |
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70 | 73 | } |
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71 | 74 | } |
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72 | 75 | |
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73 | 76 | bool VisualizationGraphWidget::canDrop(const Variable &variable) const |
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74 | 77 | { |
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75 | 78 | /// @todo : for the moment, a graph can always accomodate a variable |
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76 | 79 | Q_UNUSED(variable); |
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77 | 80 | return true; |
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78 | 81 | } |
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79 | 82 | |
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80 | 83 | void VisualizationGraphWidget::close() |
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81 | 84 | { |
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82 | 85 | // The main view cannot be directly closed. |
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83 | 86 | return; |
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84 | 87 | } |
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85 | 88 | |
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86 | 89 | QString VisualizationGraphWidget::name() const |
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87 | 90 | { |
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88 | 91 | if (auto title = dynamic_cast<QCPTextElement *>(ui->widget->plotLayout()->elementAt(0))) { |
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89 | 92 | return title->text(); |
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90 | 93 | } |
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91 | 94 | else { |
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92 | 95 | return QString{}; |
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93 | 96 | } |
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94 | 97 | } |
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95 | 98 | |
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99 | void VisualizationGraphWidget::onRangeChanged(const QCPRange &t1, const QCPRange &t2) | |
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100 | { | |
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101 | for (auto it = impl->m_VariableToPlotMap.cbegin(); it != impl->m_VariableToPlotMap.cend(); | |
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102 | ++it) { | |
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103 | it->first->onXRangeChanged(SqpDateTime{t2.lower, t2.upper}); | |
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104 | } | |
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105 | } | |
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106 | ||
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96 | 107 | void VisualizationGraphWidget::onMouseWheel(QWheelEvent *event) noexcept |
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97 | 108 | { |
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98 | 109 | auto zoomOrientations = QFlags<Qt::Orientation>{}; |
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99 | 110 | |
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100 | 111 | // Lambda that enables a zoom orientation if the key modifier related to this orientation has |
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101 | 112 | // been pressed |
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102 | 113 | auto enableOrientation |
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103 | 114 | = [&zoomOrientations, event](const auto &orientation, const auto &modifier) { |
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104 | 115 | auto orientationEnabled = event->modifiers().testFlag(modifier); |
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105 | 116 | zoomOrientations.setFlag(orientation, orientationEnabled); |
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106 | 117 | }; |
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107 | 118 | enableOrientation(Qt::Vertical, VERTICAL_ZOOM_MODIFIER); |
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108 | 119 | enableOrientation(Qt::Horizontal, HORIZONTAL_ZOOM_MODIFIER); |
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109 | 120 | |
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110 | 121 | ui->widget->axisRect()->setRangeZoom(zoomOrientations); |
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111 | 122 | } |
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