C++ (Cpp) IAAFDataDef::Initialize Examples

Example #1

File: CAAFEventTest.cpp Project: mcanthony/aaf

void EventTest::CreateEvent()
{
  assert(_pHeader && _pDictionary);

  HRESULT hr = S_OK;
  IAAFEvent *pEvent = NULL;
  IAAFEventMobSlot *pEventMobSlot = NULL;
  IAAFSegment *pSegment = NULL;
  IAAFMobSlot *pMobSlot = NULL;
  IAAFDataDef *pDataDef = NULL;
  IAAFComponent *pComp = NULL;
  IAAFMob *pMob = NULL;

  CAAFBuiltinDefs defs (_pDictionary);

  try
  {
	  // not already in dictionary
		checkResult(defs.cdDataDef()->
					CreateInstance (IID_IAAFDataDef,
									(IUnknown **)&pDataDef));
	  hr = pDataDef->Initialize (kAAFDataDef_Test, L"Test", L"Test data");
	  hr = _pDictionary->RegisterDataDef (pDataDef);

	// Create a concrete subclass of event
    checkResult(defs.cdCommentMarker()->
				CreateInstance(IID_IAAFEvent, 
							   (IUnknown **)&pEvent));
    checkResult(pEvent->SetPosition(_position));
    checkResult(pEvent->SetComment(const_cast<wchar_t*>(_eventComment)));
	checkResult(pEvent->QueryInterface(IID_IAAFComponent, (void **)&pComp));
	checkResult(pComp->SetDataDef(pDataDef));
	pComp->Release();
	pComp = NULL;

    // Get the segment inteface to the event to install into the mob slot.
    checkResult(pEvent->QueryInterface(IID_IAAFSegment, (void **)&pSegment));

    // Create and initialize an EventMobSlot
    checkResult(defs.cdEventMobSlot()->
				CreateInstance(IID_IAAFEventMobSlot, 
							   (IUnknown **)&pEventMobSlot));
    checkResult(pEventMobSlot->SetEditRate(const_cast<aafRational_t *>(&_editRate)));

    // Get the mob slot interface so that we can add the event segment.
    checkResult(pEventMobSlot->QueryInterface(IID_IAAFMobSlot, (void **)&pMobSlot));

    // Add the event segment to the event mob slot.
    checkResult(pMobSlot->SetSegment(pSegment));

    // Create the mob to hold the new event mob slot.
    checkResult(defs.cdCompositionMob()->
				CreateInstance(IID_IAAFMob, 
							   (IUnknown **)&pMob));
    checkResult(pMob->SetName(L"CompositionMob::Name:Test mob to hold an event mob slot"));

    // Append event slot to the composition mob.
    checkResult(pMob->AppendSlot(pMobSlot));

    // Save the id of the composition mob that contains our test
    // event mob slot.
    checkResult(pMob->SetMobID(gMobID));
    
    // Attach the mob to the header...
    checkResult(_pHeader->AddMob(pMob));

  }
  catch (HRESULT& rHR)
  {
    hr = rHR;
    // fall through and handle cleanup
  }

  // Cleanup local references
  if (pMob)
  {
    pMob->Release();
    pMob = NULL;
  }

  if (pDataDef)
  {
    pDataDef->Release();
    pDataDef = NULL;
  }

  if (pComp)
  {
    pComp->Release();
    pComp = NULL;
  }

  if (pMobSlot)
  {
    pMobSlot->Release();
    pMobSlot = NULL;
  }

  if (pEventMobSlot)
  {
    pEventMobSlot->Release();
    pEventMobSlot = NULL;
  }

  if (pSegment)
  {
    pSegment->Release();
    pSegment = NULL;
  }

  if (pEvent)
  {
    pEvent->Release();
    pEvent = NULL;
  }



  // Propogate the error if necessary.
  checkResult(hr);
}