91 lines
1.9 KiB
C++
91 lines
1.9 KiB
C++
//////////////////////////////////////////////////////////////////////
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
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// TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (C) 2003 Microsoft Corporation. All rights reserved.
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//
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// EditSession.h
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//
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// CEditSessionBase declaration.
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//
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//////////////////////////////////////////////////////////////////////
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#ifndef EDITSESSION_H
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#define EDITSESSION_H
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#include "TextService.h"
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class CEditSessionBase : public ITfEditSession
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{
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public:
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CEditSessionBase(CPropertyMonitorTextService *pTextService, ITfContext *pContext)
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{
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_cRef = 1;
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_pContext = pContext;
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_pContext->AddRef();
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_pTextService = pTextService;
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_pTextService->AddRef();
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}
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virtual ~CEditSessionBase()
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{
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_pContext->Release();
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_pTextService->Release();
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}
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// IUnknown
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STDMETHODIMP QueryInterface(REFIID riid, void **ppvObj)
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{
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if (ppvObj == NULL)
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return E_INVALIDARG;
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*ppvObj = NULL;
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if (IsEqualIID(riid, IID_IUnknown) ||
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IsEqualIID(riid, IID_ITfEditSession))
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{
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*ppvObj = (ITfLangBarItemButton *)this;
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}
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if (*ppvObj)
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{
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AddRef();
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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STDMETHODIMP_(ULONG) AddRef(void)
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{
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return ++_cRef;
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}
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STDMETHODIMP_(ULONG) Release(void)
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{
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LONG cr = --_cRef;
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assert(_cRef >= 0);
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if (_cRef == 0)
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{
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delete this;
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}
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return cr;
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}
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// ITfEditSession
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virtual STDMETHODIMP DoEditSession(TfEditCookie ec) = 0;
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protected:
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ITfContext *_pContext;
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CPropertyMonitorTextService *_pTextService;
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private:
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LONG _cRef; // COM ref count
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};
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#endif // EDITSESSION_H
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