Method UpdateHoverWidgetState

Views/Infovis/vtkRenderView.cxx:484–507

}

void vtkRenderView::UpdateHoverWidgetState()
{
  // Make sure we have a context, then ensure hover widget is
  // enabled if we are displaying hover text.
  this->RenderWindow->MakeCurrent();
  if (this->RenderWindow->IsCurrent())
  {
    if (!this->Interacting && (this->HoverWidget->GetEnabled() != 0) != this->DisplayHoverText)
    {
      vtkDebugMacro(<< "turning " << (this->DisplayHoverText ? "on" : "off") << " hover widget");
      this->HoverWidget->SetEnabled(this->DisplayHoverText);
    }
    // Disable hover text when interacting.
    else if (this->Interacting && this->HoverWidget->GetEnabled())
    {
      vtkDebugMacro(<< "turning off hover widget");
      this->HoverWidget->SetEnabled(false);
    }
  }
  if (!this->HoverWidget->GetEnabled())
  {
    this->Balloon->SetBalloonText("");
  }
}

void vtkRenderView::PrepareForRendering()
{