C++ COleClientItem::GetType方法代码示例

STDMETHODIMP COlePropertiesDialog::XOleUIObjInfo::GetConvertInfo(
	DWORD dwObject, CLSID* lpClassID, WORD* lpwFormat,
	CLSID*, LPCLSID*, UINT*)
{
	COleClientItem* pItem = (COleClientItem*)dwObject;
	ASSERT_VALID(pItem);

	if (lpClassID != NULL)
	{
		if (pItem->GetType() == OT_LINK ||
			S_OK != ReadClassStg(pItem->m_lpStorage, lpClassID))
		{
			pItem->GetClassID(lpClassID);
		}
	}
	if (lpwFormat != NULL)
	{
		*lpwFormat = 0;
		CLIPFORMAT cf;
		if (ReadFmtUserTypeStg(pItem->m_lpStorage, &cf, NULL) == S_OK)
			*lpwFormat = (WORD)cf;
	}

	// Note: leave rest at default

	return S_OK;
}

STDMETHODIMP COleUILinkInfo::CancelLink(DWORD dwLink)
{
	COleClientItem* pItem = (COleClientItem*)dwLink;
	ASSERT_VALID(pItem);
	ASSERT_KINDOF(COleClientItem, pItem);
	ASSERT(pItem->GetType() == OT_LINK);

	SCODE sc = E_FAIL;
	TRY
	{
		if (pItem->FreezeLink())
			sc = S_OK;
	}
	CATCH_ALL(e)
	{
		sc = COleException::Process(e);
		DELETE_EXCEPTION(e);
	}
	END_CATCH_ALL

	// report error
	if (sc != S_OK)
		pItem->ReportError(sc);

	return S_OK;
}

STDMETHODIMP COleUILinkInfo::GetLinkUpdateOptions(
	DWORD dwLink, DWORD* lpdwUpdateOpt)
{
	COleClientItem* pItem = (COleClientItem*)dwLink;
	ASSERT_VALID(pItem);
	ASSERT_KINDOF(COleClientItem, pItem);

	SCODE sc;
	TRY
	{
		if (pItem->GetType() == OT_LINK)
			*lpdwUpdateOpt = pItem->GetLinkUpdateOptions();
		else
			*lpdwUpdateOpt = OLEUPDATE_ALWAYS;  // make believe it is auto-link
		sc = S_OK;
	}
	CATCH_ALL(e)
	{
		sc = COleException::Process(e);
		DELETE_EXCEPTION(e);
	}
	END_CATCH_ALL

	return sc;
}

STDMETHODIMP_(DWORD) COleUILinkInfo::GetNextLink(
	DWORD dwLink)
{
	ASSERT(m_pDocument != NULL);
	if (dwLink == 0)
	{
		// start enumerating from the beginning
		m_pos = m_pDocument->GetStartPosition();
	}
	COleClientItem* pItem;
	while ((pItem = m_pDocument->GetNextClientItem(m_pos)) != NULL)
	{
		// check for links
		OLE_OBJTYPE objType = pItem->GetType();
		if (m_bUpdateLinks && objType == OT_LINK)
		{
			// link found -- return it
			return (DWORD)(void*)pItem;
		}
		// check for embeddings
		if (m_bUpdateEmbeddings && objType == OT_EMBEDDED)
		{
			// embedding w/mismatched target device
			return (DWORD)(void*)pItem;
		}
	}
	return 0;   // link not found
}

void COleDocument::OnUpdateObjectVerbMenu(CCmdUI* pCmdUI)
{
	if (pCmdUI->m_pMenu == NULL || pCmdUI->m_pParentMenu == NULL)
	{
		// not a menu or is on sub-menu (don't recurse)
		pCmdUI->ContinueRouting();
		return;
	}

	// check for single selection
	COleClientItem* pItem = GetPrimarySelectedItem(GetRoutingView_());
	if (pItem == NULL || pItem->GetType() == OT_STATIC)
	{
		// no selection, or is 'static' item
		pCmdUI->Enable(FALSE);
	}

	// only include Convert... if there is a handler for ID_OLE_EDIT_CONVERT
	UINT nConvertID = ID_OLE_EDIT_CONVERT;
	AFX_CMDHANDLERINFO info;
	if (!OnCmdMsg(ID_OLE_EDIT_CONVERT, CN_COMMAND, NULL, &info))
		nConvertID = 0;

	// update the menu
	AfxOleSetEditMenu(GetPrimarySelectedItem(GetRoutingView_()),
		pCmdUI->m_pMenu, pCmdUI->m_nIndex,
		ID_OLE_VERB_FIRST, ID_OLE_VERB_LAST, nConvertID);
}

void CMainFrame::AdjustObjectSubmenu (CMFCPopupMenu* pMenuPopup)
{
	ASSERT (pMenuPopup != NULL);
	if (pMenuPopup == NULL)
	{
		return;
	}

	if (pMenuPopup->GetParentPopupMenu () != NULL)
	{
		return;
	}

	CMFCPopupMenuBar* pMenuBar = pMenuPopup->GetMenuBar ();
	ASSERT (pMenuBar != NULL);
	if (pMenuBar == NULL)
	{
		return;
	}

	int iIndex = pMenuBar->CommandToIndex (ID_OLE_VERB_POPUP);
	if (iIndex < 0)
	{
		return;
	}

	CWordPadDoc* pDoc = (CWordPadDoc*)GetActiveDocument();
	ASSERT_VALID (pDoc);

	// check for single selection
	COleClientItem* pItem = pDoc->GetPrimarySelectedItem(GetActiveView());
	if (pItem == NULL || pItem->GetType() == OT_STATIC)
	{
		// no selection, or is 'static' item
		return;
	}

	// only include Convert... if there is a handler for ID_OLE_EDIT_CONVERT
	UINT nConvertID = ID_OLE_EDIT_CONVERT;
	AFX_CMDHANDLERINFO info;
	if (!pDoc->OnCmdMsg(ID_OLE_EDIT_CONVERT, CN_COMMAND, NULL, &info))
		nConvertID = 0;

	HMENU hMenu = pMenuBar->ExportToMenu ();
	ASSERT(hMenu != NULL);
	if (hMenu != NULL)
	{
		// update the menu
		AfxOleSetEditMenu(pItem, CMenu::FromHandle (hMenu), iIndex, ID_OLE_VERB_FIRST, ID_OLE_VERB_LAST, nConvertID);

		pMenuBar->ImportFromMenu (hMenu);
		::DestroyMenu (hMenu);
	}
}

void COleDocument::OnUpdateEditLinksMenu(CCmdUI* pCmdUI)
{
	POSITION pos = GetStartPosition();
	COleClientItem* pItem;
	while ((pItem = GetNextClientItem(pos)) != NULL)
	{
		if (pItem->GetType() == OT_LINK)
		{
			// we found a link!
			pCmdUI->Enable(TRUE);
			return;
		}
	}
	pCmdUI->Enable(FALSE);      // no links today
}

STDMETHODIMP COleUILinkInfo::OpenLinkSource(DWORD dwLink)
{
	COleClientItem* pItem = (COleClientItem*)dwLink;
	ASSERT_VALID(pItem);
	ASSERT_KINDOF(COleClientItem, pItem);
	ASSERT(pItem->GetType() == OT_LINK);

	SCODE sc;
	TRY
	{
		// Note: no need for valid CView* since links don't activate inplace
		pItem->DoVerb(OLEIVERB_SHOW, NULL);
		sc = S_OK;
	}
	CATCH_ALL(e)
	{
		sc = COleException::Process(e);
		DELETE_EXCEPTION(e);
	}
	END_CATCH_ALL

	return sc;
}

STDMETHODIMP COleUILinkInfo::SetLinkUpdateOptions(
	DWORD dwLink, DWORD dwUpdateOpt)
{
	COleClientItem* pItem = (COleClientItem*)dwLink;
	ASSERT_VALID(pItem);
	ASSERT_KINDOF(COleClientItem, pItem);
	ASSERT(pItem->GetType() == OT_LINK);

	SCODE sc;
	TRY
	{
		// item is a link -- get its link options
		pItem->SetLinkUpdateOptions((OLEUPDATE)dwUpdateOpt);
		sc = S_OK;
	}
	CATCH_ALL(e)
	{
		sc = COleException::Process(e);
		DELETE_EXCEPTION(e);
	}
	END_CATCH_ALL

	return sc;
}

STDMETHODIMP COleUILinkInfo::GetLinkSource(
	DWORD dwLink, LPTSTR* lplpszDisplayName, ULONG* lplenFileName,
	LPTSTR* lplpszFullLinkType, LPTSTR* lplpszShortLinkType,
	BOOL* lpfSourceAvailable, BOOL* lpfIsSelected)
{
	COleClientItem* pItem = (COleClientItem*)dwLink;
	ASSERT_VALID(pItem);
	ASSERT_KINDOF(COleClientItem, pItem);
	ASSERT(pItem->GetType() == OT_LINK);

	// set OUT params to NULL
	ASSERT(lplpszDisplayName != NULL);
	*lplpszDisplayName  = NULL;
	if (lplpszFullLinkType != NULL)
		*lplpszFullLinkType = NULL;
	if (lplpszShortLinkType != NULL)
		*lplpszShortLinkType = NULL;
	if (lplenFileName != NULL)
		*lplenFileName = 0;
	if (lpfSourceAvailable != NULL)
		*lpfSourceAvailable = !pItem->m_bLinkUnavail;

	// get IOleLink interface
	LPOLELINK lpOleLink = QUERYINTERFACE(pItem->m_lpObject, IOleLink);
	ASSERT(lpOleLink != NULL);

	// get moniker & object information
	LPMONIKER lpmk;
	if (lpOleLink->GetSourceMoniker(&lpmk) == S_OK)
	{
		if (lplenFileName != NULL)
			*lplenFileName = _AfxOleGetLenFilePrefixOfMoniker(lpmk);
		lpmk->Release();
	}


	// attempt to get the type names of the link
	if (lplpszFullLinkType != NULL)
	{
		LPOLESTR lpOleStr = NULL;
		pItem->m_lpObject->GetUserType(USERCLASSTYPE_FULL, &lpOleStr);
		*lplpszFullLinkType = TASKSTRINGOLE2T(lpOleStr);
		if (*lplpszFullLinkType == NULL)
		{
			TCHAR szUnknown[256];
			VERIFY(AfxLoadString(AFX_IDS_UNKNOWNTYPE, szUnknown) != 0);
			*lplpszFullLinkType = AfxAllocTaskString(szUnknown);
		}
	}
	if (lplpszShortLinkType != NULL)
	{
		LPOLESTR lpOleStr = NULL;
		pItem->m_lpObject->GetUserType(USERCLASSTYPE_SHORT, &lpOleStr);
		*lplpszShortLinkType = TASKSTRINGOLE2T(lpOleStr);
		if (*lplpszShortLinkType == NULL)
		{
			TCHAR szUnknown[256];
			VERIFY(AfxLoadString(AFX_IDS_UNKNOWNTYPE, szUnknown) != 0);
			*lplpszShortLinkType = AfxAllocTaskString(szUnknown);
		}
	}

	// get source display name for moniker
	LPOLESTR lpOleStr = NULL;
	SCODE sc = lpOleLink->GetSourceDisplayName(&lpOleStr);
	*lplpszDisplayName = TASKSTRINGOLE2T(lpOleStr);
	lpOleLink->Release();
	if (sc != S_OK)
		return sc;

	// see if item is selected if specified
	if (lpfIsSelected)
	{
		*lpfIsSelected = (m_pSelectedItem == pItem);
	}

	return S_OK;
}

STDMETHODIMP COleUILinkInfo::SetLinkSource(
	DWORD dwLink, LPTSTR lpszDisplayName, ULONG lenFileName,
	ULONG* pchEaten, BOOL  fValidateSource)
{
	USES_CONVERSION;

	COleClientItem* pItem = (COleClientItem*)dwLink;
	ASSERT_VALID(pItem);
	ASSERT_KINDOF(COleClientItem, pItem);
	ASSERT(pItem->GetType() == OT_LINK);

	LPOLEOBJECT lpObject = NULL;
	CLSID clsid;

	// parse the portion known to be a file name into a file moniker
	TCHAR szName[_MAX_PATH];
	lstrcpyn(szName, lpszDisplayName, (int)lenFileName + 1);
	LPMONIKER lpmk = NULL;
	SCODE sc = CreateFileMoniker(T2COLE(szName), &lpmk);
	if (lpmk == NULL)
		return sc;

	LPBC lpbc = NULL;
	if (fValidateSource)
	{
		sc = CreateBindCtx(0, &lpbc);
		if (sc != S_OK)
		{
			lpmk->Release();
			return sc;
		}
	}

	// nUneaten is the number of chars left to parse
	UINT nUneaten = lstrlen(lpszDisplayName) - lenFileName;

	// lpszRemainder is the left over display name
	LPTSTR lpszRemainder = lpszDisplayName + lenFileName;
	*pchEaten = lenFileName;

	// parse the rest of the display name
	while (nUneaten > 0)
	{
		// attempt to parse next moniker
		ULONG nEaten = 0;
		LPMONIKER lpmkNext = NULL;
		sc = _AfxParseDisplayName(lpmk, lpbc, lpszRemainder, &nEaten, &lpmkNext);
		if (sc != S_OK)
		{
			lpmk->Release();
			lpbc->Release();
			return sc;
		}

		// advance through the display name
		nUneaten -= nEaten;
		*pchEaten += nEaten;
		lpszRemainder += nEaten;

		if (lpmkNext != NULL)
		{
			// create composite out of current and next
			LPMONIKER lpmkTemp = NULL;
			sc = CreateGenericComposite(lpmk, lpmkNext, &lpmkTemp);
			if (FAILED(sc))
			{
				lpmk->Release();
				lpmkNext->Release();
				lpbc->Release();
				return sc;
			}

			// make current = next
			lpmkNext->Release();
			lpmk->Release();
			lpmk = lpmkTemp;
		}
	}

	if (fValidateSource)
	{
		// attempt to bind the the object
		sc = lpmk->BindToObject(lpbc, NULL, IID_IOleObject, (LPLP)&lpObject);
		if (FAILED(sc))
		{
			pItem->m_bLinkUnavail = TRUE;
			lpbc->Release();
			lpmk->Release();
			RELEASE(lpObject);
			return sc;
		}
		ASSERT(lpObject != NULL);

		// call GetUserClassID while bound so default handler updates
		lpObject->GetUserClassID(&clsid);
		pItem->m_bLinkUnavail = FALSE;
	}

	// get IOleLink interface
	LPOLELINK lpOleLink = QUERYINTERFACE(pItem->m_lpObject, IOleLink);
//.........这里部分代码省略.........

STDMETHODIMP COlePropertiesDialog::XOleUIObjInfo::GetObjectInfo(
	DWORD dwObject, DWORD* lpdwObjSize, LPTSTR* lplpszLabel,
	LPTSTR* lplpszType, LPTSTR* lplpszShortType, LPTSTR* lplpszLocation)
{
	COleClientItem* pItem = (COleClientItem*)dwObject;
	ASSERT_VALID(pItem);
	BOOL bIsLink = (pItem->GetType() == OT_LINK);

	if (lpdwObjSize != NULL)
	{
		ASSERT(pItem->m_lpStorage != NULL);

		// try ILockBytes first, then IStorage
		STATSTG statStg;
		if ((pItem->m_lpLockBytes == NULL ||
			pItem->m_lpLockBytes->Stat(&statStg, STATFLAG_NONAME) != S_OK) &&
			pItem->m_lpStorage->Stat(&statStg, STATFLAG_NONAME) != S_OK)
		{
			*lpdwObjSize = 0xFFFFFFFF;
		}
		else
		{
			ASSERT(statStg.pwcsName == NULL);
			if (statStg.cbSize.HighPart > 0)
				*lpdwObjSize = 0xFFFFFFFE;
			else if (statStg.cbSize.LowPart == 0)
				*lpdwObjSize = 0xFFFFFFFF;
			else
				*lpdwObjSize = statStg.cbSize.LowPart;
		}
	}

	if (lplpszLabel != NULL)
	{
		TCHAR szFormatLink[128];
		AfxLoadString(AFX_IDS_PASTELINKEDTYPE, szFormatLink, _countof(szFormatLink));
		TCHAR szFormatObj[] = _T("%s");
		LPTSTR lpszFormat = bIsLink ? szFormatLink : szFormatObj;
		CString strType;
		pItem->GetUserType(USERCLASSTYPE_FULL, strType);
		CString strResult;
		strResult.Format(lpszFormat, (LPCTSTR)strType);
		*lplpszLabel = AfxAllocTaskString(strResult);
	}

	if (lplpszType != NULL)
	{
		LPOLESTR lpOleStr;
		pItem->m_lpObject->GetUserType(USERCLASSTYPE_FULL, &lpOleStr);
		*lplpszType = TASKSTRINGOLE2T(lpOleStr);
	}

	if (lplpszShortType != NULL)
	{
		LPOLESTR lpOleStr;
		pItem->m_lpObject->GetUserType(USERCLASSTYPE_SHORT, &lpOleStr);
		*lplpszShortType = TASKSTRINGOLE2T(lpOleStr);
	}

	if (lplpszLocation != NULL)
	{
		if (bIsLink)
		{
			LPOLELINK lpOleLink = NULL;
			pItem->m_lpObject->QueryInterface(IID_IOleLink, (LPVOID*)&lpOleLink);
			ASSERT(lpOleLink != NULL);
			LPOLESTR lpOleStr;
			lpOleLink->GetSourceDisplayName(&lpOleStr);
			*lplpszLocation = TASKSTRINGOLE2T(lpOleStr);
			lpOleLink->Release();
		}
		else
		{
			CDocument* pDoc = (CDocument*)pItem->GetDocument();
			CString strLocation = pDoc->GetPathName();
			if (strLocation.IsEmpty())
				strLocation = pDoc->GetTitle();
			*lplpszLocation = AfxAllocTaskString(strLocation);
		}
	}

	return S_OK;
}

void CMainFrame::AdjustObjectSubmenu(CMFCPopupMenu* pMenuPopup)
{
	ASSERT(pMenuPopup != NULL);

	if (pMenuPopup->GetParentPopupMenu() != NULL)
	{
		return;
	}

	// <snippet7>
	// CMFCPopupMenu* pMenuPopup
	CMFCPopupMenuBar* pMenuBar = pMenuPopup->GetMenuBar();
	// </snippet7>
	ASSERT(pMenuBar != NULL);

	// <snippet10>
	// CMFCPopupMenuBar* pMenuBar
	CMFCCustomizeMenuButton* pBtn = (CMFCCustomizeMenuButton*)pMenuBar->GetButton(0);
	pBtn->EnableCustomization(true);
	pBtn->SetSeparator();
	// </snippet10>


	int iIndex = pMenuBar->CommandToIndex(ID_OLE_VERB_FIRST);
	if (iIndex < 0)
	{
		return;
	}

	CFrameWnd* pFrame = GetActiveFrame();

	if (pFrame == NULL)
	{
		return;
	}

	CDrawDoc* pDoc = (CDrawDoc*)pFrame->GetActiveDocument();
	ASSERT_VALID(pDoc);

	// check for single selection
	COleClientItem* pItem = pDoc->GetPrimarySelectedItem(pFrame->GetActiveView());
	if (pItem == NULL || pItem->GetType() == OT_STATIC)
	{
		// no selection, or is 'static' item
		return;
	}

	// only include Convert... if there is a handler for ID_OLE_EDIT_CONVERT
	UINT nConvertID = ID_OLE_EDIT_CONVERT;
	AFX_CMDHANDLERINFO info;
	if (!pDoc->OnCmdMsg(ID_OLE_EDIT_CONVERT, CN_COMMAND, NULL, &info))
		nConvertID = 0;

	HMENU hMenu = pMenuBar->ExportToMenu();
	ASSERT(hMenu != NULL);

	// update the menu
	AfxOleSetEditMenu(pItem, CMenu::FromHandle(hMenu), iIndex, ID_OLE_VERB_FIRST, ID_OLE_VERB_LAST, nConvertID);

	pMenuBar->ImportFromMenu(hMenu);
	::DestroyMenu(hMenu);
}