GIT_REPOSITORIES/LPP/Users/mperrinel/SciQLop-fork Commit - r1065:2ecd8b335419

Tooltip for spectrograms (1)...

Alexandre Leroux -

r1065:2ecd8b335419

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r1065:2ecd8b335419

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gui/src/Visualization/VisualizationGraphRenderingDelegate.cpp +15 -4

              #include "Visualization/VisualizationGraphRenderingDelegate.h"
              #include "Visualization/AxisRenderingUtils.h"
              #include "Visualization/ColorScaleEditor.h"
              #include "Visualization/PlottablesRenderingUtils.h"
              #include "Visualization/SqpColorScale.h"
              #include "Visualization/VisualizationGraphWidget.h"
              #include "Visualization/qcustomplot.h"
              #include <Common/DateUtils.h>
              #include <Data/IDataSeries.h>
              #include <SqpApplication.h>
              namespace {
              /// Name of the axes layer in QCustomPlot
              const auto AXES_LAYER = QStringLiteral("axes");
              /// Icon used to show x-axis properties
              const auto HIDE_AXIS_ICON_PATH = QStringLiteral(":/icones/down.png");
              /// Name of the overlay layer in QCustomPlot
              const auto OVERLAY_LAYER = QStringLiteral("overlay");
              /// Pixmap used to show x-axis properties
              const auto SHOW_AXIS_ICON_PATH = QStringLiteral(":/icones/up.png");
-             const auto TOOLTIP_FORMAT = QStringLiteral("key: %1\nvalue: %2");
+             /// Tooltip format for graphs
+             const auto GRAPH_TOOLTIP_FORMAT = QStringLiteral("key: %1\nvalue: %2");
              /// Offset used to shift the tooltip of the mouse
              const auto TOOLTIP_OFFSET = QPoint{20, 20};
              /// Tooltip display rectangle (the tooltip is hidden when the mouse leaves this rectangle)
              const auto TOOLTIP_RECT = QRect{10, 10, 10, 10};
              /// Timeout after which the tooltip is displayed
              const auto TOOLTIP_TIMEOUT = 500;
              void initPointTracerStyle(QCPItemTracer &tracer) noexcept
              {
                  tracer.setInterpolating(false);
                  tracer.setStyle(QCPItemTracer::tsCircle);
                  tracer.setSize(3);
                  tracer.setPen(QPen(Qt::black));
                  tracer.setBrush(Qt::black);
              }
              QPixmap pixmap(const QString &iconPath) noexcept
              {
                  return QIcon{iconPath}.pixmap(QSize{16, 16});
              }
              void initClosePixmapStyle(QCPItemPixmap &pixmap) noexcept
              {
                  // Icon
                  pixmap.setPixmap(
                      sqpApp->style()->standardIcon(QStyle::SP_TitleBarCloseButton).pixmap(QSize{16, 16}));
                  // Position
                  pixmap.topLeft->setType(QCPItemPosition::ptAxisRectRatio);
                  pixmap.topLeft->setCoords(1, 0);
                  pixmap.setClipToAxisRect(false);
                  // Can be selected
                  pixmap.setSelectable(true);
              }
              void initXAxisPixmapStyle(QCPItemPixmap &itemPixmap) noexcept
              {
                  // Icon
                  itemPixmap.setPixmap(pixmap(HIDE_AXIS_ICON_PATH));
                  // Position
                  itemPixmap.topLeft->setType(QCPItemPosition::ptAxisRectRatio);
                  itemPixmap.topLeft->setCoords(0, 1);
                  itemPixmap.setClipToAxisRect(false);
                  // Can be selected
                  itemPixmap.setSelectable(true);
              }
              void initTitleTextStyle(QCPItemText &text) noexcept
              {
                  // Font and background styles
                  text.setColor(Qt::gray);
                  text.setBrush(Qt::white);
                  // Position
                  text.setPositionAlignment(Qt::AlignTop | Qt::AlignLeft);
                  text.position->setType(QCPItemPosition::ptAxisRectRatio);
                  text.position->setCoords(0.5, 0);
              }
              } // namespace
              struct VisualizationGraphRenderingDelegate::VisualizationGraphRenderingDelegatePrivate {
                  explicit VisualizationGraphRenderingDelegatePrivate(VisualizationGraphWidget &graphWidget)
                          : m_Plot{graphWidget.plot()},
                            m_PointTracer{new QCPItemTracer{&m_Plot}},
                            m_TracerTimer{},
                            m_ClosePixmap{new QCPItemPixmap{&m_Plot}},
                            m_TitleText{new QCPItemText{&m_Plot}},
                            m_XAxisPixmap{new QCPItemPixmap{&m_Plot}},
                            m_ShowXAxis{true},
                            m_XAxisLabel{},
                            m_ColorScale{SqpColorScale{m_Plot}}
                  {
                      initPointTracerStyle(*m_PointTracer);
                      m_TracerTimer.setInterval(TOOLTIP_TIMEOUT);
                      m_TracerTimer.setSingleShot(true);
                      // Inits "close button" in plot overlay
                      m_ClosePixmap->setLayer(OVERLAY_LAYER);
                      initClosePixmapStyle(*m_ClosePixmap);
                      // Connects pixmap selection to graph widget closing
                      QObject::connect(m_ClosePixmap, &QCPItemPixmap::selectionChanged,
                                       [&graphWidget](bool selected) {
                                           if (selected) {
                                               graphWidget.close();
                                           }
                                       });
                      // Inits graph name in plot overlay
                      m_TitleText->setLayer(OVERLAY_LAYER);
                      m_TitleText->setText(graphWidget.name());
                      initTitleTextStyle(*m_TitleText);
                      // Inits "show x-axis button" in plot overlay
                      m_XAxisPixmap->setLayer(OVERLAY_LAYER);
                      initXAxisPixmapStyle(*m_XAxisPixmap);
                      // Connects pixmap selection to graph x-axis showing/hiding
                      QObject::connect(m_XAxisPixmap, &QCPItemPixmap::selectionChanged, [this]() {
                          if (m_XAxisPixmap->selected()) {
                              // Changes the selection state and refreshes the x-axis
                              m_ShowXAxis = !m_ShowXAxis;
                              updateXAxisState();
                              m_Plot.layer(AXES_LAYER)->replot();
                              // Deselects the x-axis pixmap and updates icon
                              m_XAxisPixmap->setSelected(false);
                              m_XAxisPixmap->setPixmap(
                                  pixmap(m_ShowXAxis ? HIDE_AXIS_ICON_PATH : SHOW_AXIS_ICON_PATH));
                              m_Plot.layer(OVERLAY_LAYER)->replot();
                          }
                      });
                  }
                  /// Updates state of x-axis according to the current selection of x-axis pixmap
                  /// @remarks the method doesn't call plot refresh
                  void updateXAxisState() noexcept
                  {
                      m_Plot.xAxis->setTickLabels(m_ShowXAxis);
                      m_Plot.xAxis->setLabel(m_ShowXAxis ? m_XAxisLabel : QString{});
                  }
                  QCustomPlot &m_Plot;
                  QCPItemTracer *m_PointTracer;
                  QTimer m_TracerTimer;
                  QCPItemPixmap *m_ClosePixmap; /// Graph's close button
                  QCPItemText *m_TitleText;     /// Graph's title
                  QCPItemPixmap *m_XAxisPixmap;
                  bool m_ShowXAxis; /// X-axis properties are shown or hidden
                  QString m_XAxisLabel;
                  SqpColorScale m_ColorScale; /// Color scale used for some types of graphs (as spectrograms)
              };
              VisualizationGraphRenderingDelegate::VisualizationGraphRenderingDelegate(
                  VisualizationGraphWidget &graphWidget)
                      : impl{spimpl::make_unique_impl<VisualizationGraphRenderingDelegatePrivate>(graphWidget)}
              {
              }
              void VisualizationGraphRenderingDelegate::onMouseDoubleClick(QMouseEvent *event) noexcept
              {
                  // Opens color scale editor if color scale is double clicked
                  auto colorScale = dynamic_cast<QCPColorScale *>(impl->m_Plot.layoutElementAt(event->pos()));
                  if (impl->m_ColorScale.m_Scale == colorScale) {
                      if (ColorScaleEditor{impl->m_ColorScale}.exec() == QDialog::Accepted) {
                          impl->m_Plot.replot();
                      }
                  }
              }
              void VisualizationGraphRenderingDelegate::onMouseMove(QMouseEvent *event) noexcept
              {
                  // Cancels pending refresh
                  impl->m_TracerTimer.disconnect();
                  // Reinits tracers
                  impl->m_PointTracer->setGraph(nullptr);
                  impl->m_PointTracer->setVisible(false);
                  impl->m_Plot.replot();
+                 QString tooltip{};
                  // Gets the graph under the mouse position
                  auto eventPos = event->pos();
                  if (auto graph = qobject_cast<QCPGraph *>(impl->m_Plot.plottableAt(eventPos))) {
                      auto mouseKey = graph->keyAxis()->pixelToCoord(eventPos.x());
                      auto graphData = graph->data();
                      // Gets the closest data point to the mouse
                      auto graphDataIt = graphData->findBegin(mouseKey);
                      if (graphDataIt != graphData->constEnd()) {
+                         // Sets tooltip
                          auto key = formatValue(graphDataIt->key, *graph->keyAxis());
                          auto value = formatValue(graphDataIt->value, *graph->valueAxis());
+                         tooltip = GRAPH_TOOLTIP_FORMAT.arg(key, value);
                          // Displays point tracer
                          impl->m_PointTracer->setGraph(graph);
                          impl->m_PointTracer->setGraphKey(graphDataIt->key);
                          impl->m_PointTracer->setLayer(
                              impl->m_Plot.layer("main")); // Tracer is set on top of the plot's main layer
                          impl->m_PointTracer->setVisible(true);
                          impl->m_Plot.replot();
+                     }
+                 }
+                 else if (auto colorMap = qobject_cast<QCPColorMap *>(impl->m_Plot.plottableAt(eventPos))) {
+                     /// @todo
+                     tooltip = "TODO";
+                 }
+                 if (!tooltip.isEmpty()) {
-                         // Starts timer to show tooltip after timeout
-                         auto showTooltip = [ tooltip = TOOLTIP_FORMAT.arg(key, value), eventPos, this ]()
+                         {
+                     auto showTooltip = [tooltip, eventPos, this]() {
-                             QToolTip::showText(impl->m_Plot.mapToGlobal(eventPos) + TOOLTIP_OFFSET, tooltip,
-                                                &impl->m_Plot, TOOLTIP_RECT);
-                         };
-                         QObject::connect(&impl->m_TracerTimer, &QTimer::timeout, showTooltip);
-                         impl->m_TracerTimer.start();
-                     }
                  }
+             }
              void VisualizationGraphRenderingDelegate::onPlotUpdated() noexcept
              {
                  // Updates color scale bounds
                  impl->m_ColorScale.updateDataRange();
                  impl->m_Plot.replot();
              }
              void VisualizationGraphRenderingDelegate::setAxesProperties(
                  std::shared_ptr<IDataSeries> dataSeries) noexcept
              {
                  // Stores x-axis label to be able to retrieve it when x-axis pixmap is unselected
                  impl->m_XAxisLabel = dataSeries->xAxisUnit().m_Name;
                  auto axisHelper = IAxisHelperFactory::create(dataSeries);
                  axisHelper->setProperties(impl->m_Plot, impl->m_ColorScale);
                  // Updates x-axis state
                  impl->updateXAxisState();
                  impl->m_Plot.layer(AXES_LAYER)->replot();
              }
              void VisualizationGraphRenderingDelegate::setPlottablesProperties(
                  std::shared_ptr<IDataSeries> dataSeries, PlottablesMap &plottables) noexcept
              {
                  auto plottablesHelper = IPlottablesHelperFactory::create(dataSeries);
                  plottablesHelper->setProperties(plottables);
              }
              void VisualizationGraphRenderingDelegate::showGraphOverlay(bool show) noexcept
              {
                  auto overlay = impl->m_Plot.layer(OVERLAY_LAYER);
                  overlay->setVisible(show);
                  overlay->replot();
              }

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