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Diffstat (limited to 'fpicker/source/win32/filepicker/comptr.hxx')
| -rw-r--r-- | fpicker/source/win32/filepicker/comptr.hxx | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/fpicker/source/win32/filepicker/comptr.hxx b/fpicker/source/win32/filepicker/comptr.hxx new file mode 100644 index 000000000000..dad2ab5518e6 --- /dev/null +++ b/fpicker/source/win32/filepicker/comptr.hxx @@ -0,0 +1,222 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef COMPTR_HXX +#define COMPTR_HXX + +#include <sal/types.h> +#include <osl/diagnose.h> +#include <shobjidl.h> + +template< class T_INTERFACE , + REFIID P_IID = IID_NULL , + REFCLSID P_CLSID = CLSID_NULL > +class ComPtr +{ + public: + + //--------------------------------------------------------------------- + /** initialize com ptr with null. + */ + ComPtr() + { + m_pInterface = NULL; + } + + //--------------------------------------------------------------------- + /** initialize com ptr with given interface. + */ + ComPtr(T_INTERFACE* pInterface) + { + m_pInterface = pInterface; + if (m_pInterface) + m_pInterface->AddRef(); + } + + //--------------------------------------------------------------------- + /** copy ctor. + */ + ComPtr(const ComPtr< T_INTERFACE, P_IID, P_CLSID >& aCopy) + { + m_pInterface = aCopy.m_pInterface; + if (m_pInterface) + m_pInterface->AddRef(); + } + + //--------------------------------------------------------------------- + /** initialize object by quering external object for the right interface. + */ + ComPtr(IUnknown* pIUnknown) + { + if (pIUnknown) + pIUnknown->QueryInterface(P_IID, (void**)&m_pInterface); + } + + //--------------------------------------------------------------------- + /** deinitialize com object right. + */ + ~ComPtr() + { + release(); + } + + public: + + //--------------------------------------------------------------------- + HRESULT create() + { + return CoCreateInstance(P_CLSID, NULL, CLSCTX_ALL, P_IID, (void**)&m_pInterface); + } + + //--------------------------------------------------------------------- + operator T_INTERFACE*() const + { + return m_pInterface; + } + + //--------------------------------------------------------------------- + T_INTERFACE& operator*() const + { + return *m_pInterface; + } + + //--------------------------------------------------------------------- + T_INTERFACE** operator&() + { + return &m_pInterface; + } + + //--------------------------------------------------------------------- + T_INTERFACE* operator->() const + { + return m_pInterface; + } + + //--------------------------------------------------------------------- + T_INTERFACE* operator=(T_INTERFACE* pInterface) + { + if ( equals(pInterface) ) + return m_pInterface; + + m_pInterface->Release(); + m_pInterface = pInterface; + if (m_pInterface) + m_pInterface->AddRef(); + + return m_pInterface; + } + + //--------------------------------------------------------------------- + T_INTERFACE* operator=(IUnknown* pIUnknown) + { + if (pIUnknown) + pIUnknown->QueryInterface(P_IID, (void**)&m_pInterface); + return m_pInterface; + } + + //--------------------------------------------------------------------- + T_INTERFACE* operator=(const ComPtr< T_INTERFACE, P_IID, P_CLSID >& aCopy) + { + m_pInterface = aCopy.m_pInterface; + if (m_pInterface) + m_pInterface->AddRef(); + + return m_pInterface; + } + + //--------------------------------------------------------------------- + T_INTERFACE* get() const + { + return m_pInterface; + } + + //--------------------------------------------------------------------- + void attach(T_INTERFACE* pInterface) + { + if (pInterface) + { + m_pInterface->Release(); + m_pInterface = pInterface; + } + } + + //--------------------------------------------------------------------- + T_INTERFACE* detach() + { + T_INTERFACE* pInterface = m_pInterface; + m_pInterface = NULL; + return pInterface; + } + + //--------------------------------------------------------------------- + void release() + { + if (m_pInterface) + { + m_pInterface->Release(); + m_pInterface = NULL; + } + } + +#ifndef __MINGW32__ + //--------------------------------------------------------------------- + template< class T_QUERYINTERFACE > + HRESULT query(T_QUERYINTERFACE** pQuery) + { + return m_pInterface->QueryInterface(__uuidof(T_QUERYINTERFACE), (void**)pQuery); + } +#endif + + //--------------------------------------------------------------------- + ::sal_Bool equals(IUnknown* pCheck) + { + if ( + ( ! m_pInterface ) && + ( ! pCheck ) + ) + return sal_True; + + IUnknown* pCurrent = NULL; + m_pInterface->QueryInterface(IID_IUnknown, (void**)&pCurrent); + + ::sal_Bool bEquals = (pCheck == pCurrent); + pCurrent->Release(); + + return bEquals; + } + + //--------------------------------------------------------------------- + ::sal_Bool is() + { + return (m_pInterface != 0); + } + + private: + T_INTERFACE* m_pInterface; +}; + +#endif |