Method ProcessEvents

Views/Infovis/vtkRenderView.cxx:296–363

}

void vtkRenderView::ProcessEvents(vtkObject* caller, unsigned long eventId, void* callData)
{
  if (caller == this->GetInteractor() && eventId == vtkCommand::RenderEvent)
  {
    vtkDebugMacro(<< "interactor causing a render event.");
    this->Render();
  }
  if (caller == this->HoverWidget.GetPointer() && eventId == vtkCommand::TimerEvent)
  {
    vtkDebugMacro(<< "hover widget timer causing a render event.");
    this->UpdateHoverText();
    this->InHoverTextRender = true;
    this->Render();
    this->InHoverTextRender = false;
  }
  if (caller == this->GetInteractor() && eventId == vtkCommand::StartInteractionEvent)
  {
    this->Interacting = true;
    this->UpdateHoverWidgetState();
  }
  if (caller == this->GetInteractor() && eventId == vtkCommand::EndInteractionEvent)
  {
    this->Interacting = false;
    this->UpdateHoverWidgetState();
    this->PickRenderNeedsUpdate = true;
  }
  if (caller == this->RenderWindow.GetPointer() && eventId == vtkCommand::EndEvent)
  {
    vtkDebugMacro(<< "did a render, interacting: " << this->Interacting << " in pick render: "
                  << this->InPickRender << " in hover text render: " << this->InHoverTextRender);
    if (!this->Interacting && !this->InPickRender && !this->InHoverTextRender)
    {
      // This will cause UpdatePickRender to create a new snapshot of the view
      // for picking with the next drag selection or hover event.
      this->PickRenderNeedsUpdate = true;
    }
  }
  if (vtkDataRepresentation::SafeDownCast(caller) && eventId == vtkCommand::SelectionChangedEvent)
  {
    vtkDebugMacro("selection changed causing a render event");
    this->Render();
  }
  else if (vtkDataRepresentation::SafeDownCast(caller) && eventId == vtkCommand::UpdateEvent)
  {
    // UpdateEvent is called from push pipeline executions from
    // vtkExecutionScheduler. We want to automatically render the view
    // when one of our representations is updated.
    vtkDebugMacro("push pipeline causing a render event");
    this->Render();
  }
  else if (caller == this->GetInteractorStyle() && eventId == vtkCommand::SelectionChangedEvent)
  {
    vtkDebugMacro("interactor style made a selection changed event");
    vtkSmartPointer<vtkSelection> selection = vtkSmartPointer<vtkSelection>::New();
    this->GenerateSelection(callData, selection);

    // This enum value is the same for 2D and 3D interactor styles
    unsigned int* data = reinterpret_cast<unsigned int*>(callData);