C++ (Cpp) CDocument::OnNewDocument Examples

Example #1

File: SBPROAUX.CPP Project: mpatwa/CCEtoODB_Translator

CDocument* CSaxBasicDocTemplate::OpenDocumentFile(LPCTSTR lpszPathName,
												  BOOL bMakeVisible)
{
	POSITION pos = GetFirstDocPosition();
	CDocument* pDoc;
	if (pos == NULL)
	{
		pDoc = CMultiDocTemplate::OpenDocumentFile(NULL);
		if (lpszPathName == NULL)
			return pDoc;
	}
	else
		pDoc = GetNextDoc(pos);

	if (lpszPathName == NULL)
		pDoc->OnNewDocument();
	else
		pDoc->OnOpenDocument(lpszPathName);

	return pDoc;
}

Example #2

File: docsingl.cpp Project: rickerliang/OpenNT

CDocument* CSingleDocTemplate::OpenDocumentFile(LPCTSTR lpszPathName,
	BOOL bMakeVisible)
	// if lpszPathName == NULL => create new file of this type
{
	CDocument* pDocument = NULL;
	CFrameWnd* pFrame = NULL;
	BOOL bCreated = FALSE;      // => doc and frame created
	BOOL bWasModified = FALSE;

	if (m_pOnlyDoc != NULL)
	{
		// already have a document - reinit it
		pDocument = m_pOnlyDoc;
		if (!pDocument->SaveModified())
			return NULL;        // leave the original one

		pFrame = (CFrameWnd*)AfxGetMainWnd();
		ASSERT(pFrame != NULL);
		ASSERT(pFrame->IsKindOf(RUNTIME_CLASS(CFrameWnd)));
		ASSERT_VALID(pFrame);
	}
	else
	{
		// create a new document
		pDocument = CreateNewDocument();
		ASSERT(pFrame == NULL);     // will be created below
		bCreated = TRUE;
	}

	if (pDocument == NULL)
	{
		AfxMessageBox(AFX_IDP_FAILED_TO_CREATE_DOC);
		return NULL;
	}
	ASSERT(pDocument == m_pOnlyDoc);

	if (pFrame == NULL)
	{
		ASSERT(bCreated);

		// create frame - set as main document frame
		BOOL bAutoDelete = pDocument->m_bAutoDelete;
		pDocument->m_bAutoDelete = FALSE;
					// don't destroy if something goes wrong
		pFrame = CreateNewFrame(pDocument, NULL);
		pDocument->m_bAutoDelete = bAutoDelete;
		if (pFrame == NULL)
		{
			AfxMessageBox(AFX_IDP_FAILED_TO_CREATE_DOC);
			delete pDocument;       // explicit delete on error
			return NULL;
		}
	}

	if (lpszPathName == NULL)
	{
		// create a new document
		SetDefaultTitle(pDocument);

		// avoid creating temporary compound file when starting up invisible
		if (!bMakeVisible)
			pDocument->m_bEmbedded = TRUE;

		if (!pDocument->OnNewDocument())
		{
			// user has been alerted to what failed in OnNewDocument
			TRACE0("CDocument::OnNewDocument returned FALSE.\n");
			if (bCreated)
				pFrame->DestroyWindow();    // will destroy document
			return NULL;
		}
	}
	else
	{
		BeginWaitCursor();

		// open an existing document
		bWasModified = pDocument->IsModified();
		pDocument->SetModifiedFlag(FALSE);  // not dirty for open

		if (!pDocument->OnOpenDocument(lpszPathName))
		{
			// user has been alerted to what failed in OnOpenDocument
			TRACE0("CDocument::OnOpenDocument returned FALSE.\n");
			if (bCreated)
			{
				pFrame->DestroyWindow();    // will destroy document
			}
			else if (!pDocument->IsModified())
			{
				// original document is untouched
				pDocument->SetModifiedFlag(bWasModified);
			}
			else
			{
				// we corrupted the original document
				SetDefaultTitle(pDocument);

				if (!pDocument->OnNewDocument())
				{
					TRACE0("Error: OnNewDocument failed after trying to open a document - trying to continue.\n");
					// assume we can continue
				}
			}
			EndWaitCursor();
			return NULL;        // open failed
		}
#ifdef _MAC
		// if the document is dirty, we must have opened a stationery pad - don't
		// change the pathname because we want to treat the document as untitled
		if (!pDocument->IsModified())
#endif
			pDocument->SetPathName(lpszPathName);

		EndWaitCursor();
	}

	if (bCreated && AfxGetMainWnd() == NULL)
	{
		// set as main frame (InitialUpdateFrame will show the window)
		AfxGetThread()->m_pMainWnd = pFrame;
	}
	InitialUpdateFrame(pFrame, pDocument, bMakeVisible);

	return pDocument;
}