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Diffstat (limited to 'cppu/inc/cppu/FreeReference.hxx')
| -rw-r--r-- | cppu/inc/cppu/FreeReference.hxx | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/cppu/inc/cppu/FreeReference.hxx b/cppu/inc/cppu/FreeReference.hxx new file mode 100644 index 000000000000..38ed62ca0b4d --- /dev/null +++ b/cppu/inc/cppu/FreeReference.hxx @@ -0,0 +1,169 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: FreeReference.hxx,v $ + * $Revision: 1.3 $ + * + * 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 INCLUDED_cppu_FreeReference_hxx +#define INCLUDED_cppu_FreeReference_hxx + +#include "uno/environment.hxx" +#include "cppu/Map.hxx" +#include "com/sun/star/uno/Reference.h" + + +namespace cssuno = com::sun::star::uno; + + +namespace cppu +{ + /** Freely (environment independent) usable Reference. + (http://wiki.services.openoffice.org/wiki/Uno/Cpp/Spec/FreeReference) + + @since UDK 3.2.7 + */ + template< class T > + class FreeReference + { + cssuno::Environment m_env; + T * m_pObject; + + public: + FreeReference() : m_pObject(NULL) {} + + FreeReference(T * pObject, __sal_NoAcquire) + : m_env(cssuno::Environment::getCurrent()), + m_pObject(pObject) + { + } + + FreeReference(T * pObject) + : m_env(cssuno::Environment::getCurrent()), + m_pObject(pObject) + { + if (m_pObject) + m_env.get()->pExtEnv->acquireInterface(m_env.get()->pExtEnv, m_pObject); + } + + explicit FreeReference(cssuno::Reference<T> const & xRef) + : m_env(cssuno::Environment::getCurrent()), + m_pObject(xRef.get()) + { + if (m_pObject) + m_env.get()->pExtEnv->acquireInterface(m_env.get()->pExtEnv, m_pObject); + } + + FreeReference(FreeReference<T> const & rOther) + : m_env (rOther.m_env), + m_pObject(rOther.m_pObject) + { + if (m_pObject) + m_env.get()->pExtEnv->acquireInterface(m_env.get()->pExtEnv, m_pObject); + } + + + ~FreeReference() + { + clear(); + } + + cssuno::Environment getEnv() const throw (cssuno::RuntimeException) + { + return m_env; + } + + cssuno::Reference<T> get() const throw (cssuno::RuntimeException) + { + return cssuno::Reference<T>(cppu::mapIn(m_pObject, m_env), SAL_NO_ACQUIRE); + } + + operator cssuno::Reference<T> () const throw (cssuno::RuntimeException) + { + return get(); + } + + cssuno::Reference<T> operator -> () const throw (cssuno::RuntimeException) + { + return get(); + } + + bool is() const throw (cssuno::RuntimeException) + { + return m_pObject != NULL; + } + + void clear() + { + if (m_pObject) + { + + m_env.get()->pExtEnv->releaseInterface(m_env.get()->pExtEnv, m_pObject); + m_pObject = NULL; + m_env.clear(); + } + } + + FreeReference<T> & operator = (FreeReference<T> const & rOther) + { + clear(); + + m_pObject = rOther.m_pObject; + if (m_pObject) + { + m_env = rOther.m_env; + m_env.get()->pExtEnv->acquireInterface(m_env.get()->pExtEnv, m_pObject); + } + + return *this; + } + + void set(cssuno::Reference<T> const & xRef) + { + clear(); + + m_pObject = xRef.get(); + if (m_pObject) + { + m_env = cssuno::Environment::getCurrent(); + + m_env.get()->pExtEnv->acquireInterface(m_env.get()->pExtEnv, m_pObject); + } + } + + bool operator == (FreeReference const & rOther) const + { + return get() == rOther.get(); + } + + bool operator != (FreeReference const & rOther) const + { + return !operator==(rOther); + } + }; +} + +#endif |