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;
}
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;
}