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Diffstat (limited to 'include/comphelper/SelectionMultiplex.hxx')
-rw-r--r-- | include/comphelper/SelectionMultiplex.hxx | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/include/comphelper/SelectionMultiplex.hxx b/include/comphelper/SelectionMultiplex.hxx new file mode 100644 index 000000000000..56e8375fd215 --- /dev/null +++ b/include/comphelper/SelectionMultiplex.hxx @@ -0,0 +1,105 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#ifndef INCLUDED_COMPHELPER_SELECTION_MULTIPLEX_HXX +#define INCLUDED_COMPHELPER_SELECTION_MULTIPLEX_HXX + +#include <com/sun/star/view/XSelectionChangeListener.hpp> +#include <com/sun/star/view/XSelectionSupplier.hpp> +#include <cppuhelper/implbase1.hxx> +#include "comphelper/comphelperdllapi.h" + +//========================================================================= +//= selection helper classes +//========================================================================= + +//......................................................................... +namespace comphelper +{ +//......................................................................... + + class OSelectionChangeMultiplexer; + + //================================================================== + //= OSelectionChangeListener + //================================================================== + /// simple listener adapter for selections + class COMPHELPER_DLLPUBLIC OSelectionChangeListener + { + friend class OSelectionChangeMultiplexer; + + OSelectionChangeMultiplexer* m_pAdapter; + ::osl::Mutex& m_rMutex; + + public: + OSelectionChangeListener(::osl::Mutex& _rMutex) + : m_pAdapter(NULL), m_rMutex(_rMutex) { } + virtual ~OSelectionChangeListener(); + + virtual void _selectionChanged( const ::com::sun::star::lang::EventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException) = 0; + virtual void _disposing(const ::com::sun::star::lang::EventObject& _rSource) throw( ::com::sun::star::uno::RuntimeException); + + protected: + // pseudo-private. Making it private now could break compatibility + void setAdapter( OSelectionChangeMultiplexer* _pAdapter ); + }; + + //================================================================== + //= OSelectionChangeMultiplexer + //================================================================== + /// multiplexer for selection changes + class COMPHELPER_DLLPUBLIC OSelectionChangeMultiplexer :public cppu::WeakImplHelper1< ::com::sun::star::view::XSelectionChangeListener> + { + friend class OSelectionChangeListener; + ::com::sun::star::uno::Reference< ::com::sun::star::view::XSelectionSupplier> m_xSet; + OSelectionChangeListener* m_pListener; + sal_Int32 m_nLockCount; + sal_Bool m_bListening : 1; + sal_Bool m_bAutoSetRelease : 1; + + OSelectionChangeMultiplexer(const OSelectionChangeMultiplexer&); + OSelectionChangeMultiplexer& operator=(const OSelectionChangeMultiplexer&); + protected: + virtual ~OSelectionChangeMultiplexer(); + public: + OSelectionChangeMultiplexer(OSelectionChangeListener* _pListener, const ::com::sun::star::uno::Reference< ::com::sun::star::view::XSelectionSupplier>& _rxSet, sal_Bool _bAutoReleaseSet = sal_True); + + // XEventListener + virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException); + + // XSelectionChangeListener + virtual void SAL_CALL selectionChanged( const ::com::sun::star::lang::EventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException); + + /// incremental lock + void lock(); + /// incremental unlock + void unlock(); + /// get the lock count + sal_Int32 locked() const { return m_nLockCount; } + + void dispose(); + }; + +//......................................................................... +} // namespace comphelper +//......................................................................... + +#endif // INCLUDED_COMPHELPER_SELECTION_MULTIPLEX_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |