Method processPointSelection

src/qt/qcustomplot.cpp:15386–15420

! \internal This method is called when a simple left mouse click was detected on the QCustomPlot surface. It first determines the layerable that was hit by the click, and then calls its \ref QCPLayerable::selectEvent. All other layerables receive a QCPLayerable::deselectEvent (unless the multi-select modifier was pressed, see \ref setMultiSelectModifier). In this method the hit layera

  \see processRectSelection, QCPLayerable::selectTest
*/
void QCustomPlot::processPointSelection(QMouseEvent *event)
{
  QVariant details;
  QCPLayerable *clickedLayerable = layerableAt(event->pos(), true, &details);
  bool selectionStateChanged = false;
  bool additive = mInteractions.testFlag(QCP::iMultiSelect) && event->modifiers().testFlag(mMultiSelectModifier);
  // deselect all other layerables if not additive selection:
  if (!additive)
  {
    Q_FOREACH (QCPLayer *layer, mLayers)
    {
      Q_FOREACH (QCPLayerable *layerable, layer->children())
      {
        if (layerable != clickedLayerable && mInteractions.testFlag(layerable->selectionCategory()))
        {
          bool selChanged = false;
          layerable->deselectEvent(&selChanged);
          selectionStateChanged |= selChanged;
        }
      }
    }
  }
  if (clickedLayerable && mInteractions.testFlag(clickedLayerable->selectionCategory()))
  {
    // a layerable was actually clicked, call its selectEvent:
    bool selChanged = false;
    clickedLayerable->selectEvent(event, additive, details, &selChanged);
    selectionStateChanged |= selChanged;
  }
  if (selectionStateChanged)
  {
    Q_EMIT selectionChangedByUser();
    replot(rpQueuedReplot);
  }
}

/*! \internal