Method Initialize

Rendering/UI/vtkAndroidRenderWindowInteractor.cxx:509–570

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//------------------------------------------------------------------------------
void vtkAndroidRenderWindowInteractor::Initialize()
{
  // make sure we have a RenderWindow and camera
  if (!this->RenderWindow)
  {
    vtkErrorMacro(<< "No renderer defined!");
    return;
  }
  if (this->Initialized)
  {
    return;
  }

  vtkRenderWindow* ren;
  int* size;

  this->Initialized = 1;
  // get the info we need from the RenderingWindow
  ren = this->RenderWindow;

  if (this->GetOwnWindow() && this->AndroidApplication != nullptr)
  {
    this->AndroidApplication->userData = this;
    this->AndroidApplication->onAppCmd = android_handle_cmd;
    this->AndroidApplication->onInputEvent = android_handle_input;

    // run event loop until window mapped
    bool done = false;
    while (!done && this->RenderWindow->GetMapped() == 0)
    {
      // Read all pending events.
      int ident;
      int events;
      struct android_poll_source* source;

      if ((ident = ALooper_pollOnce(-1, nullptr, &events, (void**)&source)) >= 0)
      {
        // Process this event.
        if (source != nullptr)
        {
          source->process(this->AndroidApplication, source);
        }

        // Check if we are exiting.
        if (this->AndroidApplication->destroyRequested != 0)
        {
          LOGW("Destroying Window in init");
          this->RenderWindow->Finalize();
          done = true;
          LOGW("Destroyed window in init");
          return;
        }
      }
    }
  }

  size = ren->GetSize();
  ren->GetPosition();