Beispiel #1
0
void COleDocument::SaveToStorage(CObject* pObject)
{
	ASSERT(m_lpRootStg != NULL);

	// create Contents stream
	COleStreamFile file;
	CFileException fe;
	if (!file.CreateStream(m_lpRootStg, _T("Contents"),
			CFile::modeReadWrite|CFile::shareExclusive|CFile::modeCreate, &fe))
	{
		if (fe.m_cause == CFileException::fileNotFound)
			AfxThrowArchiveException(CArchiveException::badSchema);
		else
			AfxThrowFileException(fe.m_cause, fe.m_lOsError);
	}

	// save to Contents stream
	CArchive saveArchive(&file, CArchive::store | CArchive::bNoFlushOnDelete);
	saveArchive.m_pDocument = this;
	saveArchive.m_bForceFlat = FALSE;

	TRY
	{
		// save the contents
		if (pObject != NULL)
			pObject->Serialize(saveArchive);
		else
			Serialize(saveArchive);
		saveArchive.Close();
		file.Close();

		// commit the root storage
		SCODE sc = m_lpRootStg->Commit(STGC_ONLYIFCURRENT);
		if (sc != S_OK)
			AfxThrowOleException(sc);
	}
	CATCH_ALL(e)
	{
		file.Abort();   // will not throw an exception
		CommitItems(FALSE); // abort save in progress
		NO_CPP_EXCEPTION(saveArchive.Abort());
		THROW_LAST();
	}
	END_CATCH_ALL
}
Beispiel #2
0
void COleDocument::LoadFromStorage()
{
	ASSERT(m_lpRootStg != NULL);

	// open Contents stream
	COleStreamFile file;
	CFileException fe;
	if (!file.OpenStream(m_lpRootStg, _T("Contents"),
			CFile::modeRead|CFile::shareExclusive, &fe) &&
		!file.CreateStream(m_lpRootStg, _T("Contents"),
			CFile::modeRead|CFile::shareExclusive|CFile::modeCreate, &fe))
	{
		if (fe.m_cause == CFileException::fileNotFound)
			AfxThrowArchiveException(CArchiveException::badSchema);
		else
			AfxThrowFileException(fe.m_cause, fe.m_lOsError);
	}

	// load it with CArchive (loads from Contents stream)
	CArchive loadArchive(&file, CArchive::load | CArchive::bNoFlushOnDelete);
	loadArchive.m_pDocument = this;
	loadArchive.m_bForceFlat = FALSE;

	TRY
	{
		if (file.GetLength() != 0)
			Serialize(loadArchive);     // load main contents
		loadArchive.Close();
		file.Close();
	}
	CATCH_ALL(e)
	{
		file.Abort();   // will not throw an exception
		DeleteContents();   // removed failed contents
		NO_CPP_EXCEPTION(loadArchive.Abort());
		THROW_LAST();
	}
	END_CATCH_ALL
}