1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef INCLUDED_COMPHELPER_SELECTION_MULTIPLEX_HXX 25 #define INCLUDED_COMPHELPER_SELECTION_MULTIPLEX_HXX 26 27 #include <com/sun/star/view/XSelectionChangeListener.hpp> 28 #include <com/sun/star/view/XSelectionSupplier.hpp> 29 #include <cppuhelper/implbase1.hxx> 30 #include "comphelper/comphelperdllapi.h" 31 32 //========================================================================= 33 //= selection helper classes 34 //========================================================================= 35 36 //......................................................................... 37 namespace comphelper 38 { 39 //......................................................................... 40 41 class OSelectionChangeMultiplexer; 42 43 //================================================================== 44 //= OSelectionChangeListener 45 //================================================================== 46 /// simple listener adapter for selections 47 class COMPHELPER_DLLPUBLIC OSelectionChangeListener 48 { 49 friend class OSelectionChangeMultiplexer; 50 51 OSelectionChangeMultiplexer* m_pAdapter; 52 ::osl::Mutex& m_rMutex; 53 54 public: OSelectionChangeListener(::osl::Mutex & _rMutex)55 OSelectionChangeListener(::osl::Mutex& _rMutex) 56 : m_pAdapter(NULL), m_rMutex(_rMutex) { } 57 virtual ~OSelectionChangeListener(); 58 59 virtual void _selectionChanged( const ::com::sun::star::lang::EventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException) = 0; 60 virtual void _disposing(const ::com::sun::star::lang::EventObject& _rSource) throw( ::com::sun::star::uno::RuntimeException); 61 62 protected: 63 /** If the derivee also owns the mutex which we know as reference, then call this within your 64 derivee's dtor. 65 */ 66 void disposeAdapter(); 67 68 // pseudo-private. Making it private now could break compatibility 69 void setAdapter( OSelectionChangeMultiplexer* _pAdapter ); 70 }; 71 72 //================================================================== 73 //= OSelectionChangeMultiplexer 74 //================================================================== 75 /// multiplexer for selection changes 76 class COMPHELPER_DLLPUBLIC OSelectionChangeMultiplexer :public cppu::WeakImplHelper1< ::com::sun::star::view::XSelectionChangeListener> 77 { 78 friend class OSelectionChangeListener; 79 ::com::sun::star::uno::Reference< ::com::sun::star::view::XSelectionSupplier> m_xSet; 80 OSelectionChangeListener* m_pListener; 81 sal_Int32 m_nLockCount; 82 sal_Bool m_bListening : 1; 83 sal_Bool m_bAutoSetRelease : 1; 84 85 OSelectionChangeMultiplexer(const OSelectionChangeMultiplexer&); 86 OSelectionChangeMultiplexer& operator=(const OSelectionChangeMultiplexer&); 87 protected: 88 virtual ~OSelectionChangeMultiplexer(); 89 public: 90 OSelectionChangeMultiplexer(OSelectionChangeListener* _pListener, const ::com::sun::star::uno::Reference< ::com::sun::star::view::XSelectionSupplier>& _rxSet, sal_Bool _bAutoReleaseSet = sal_True); 91 92 // XEventListener 93 virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException); 94 95 // XSelectionChangeListener 96 virtual void SAL_CALL selectionChanged( const ::com::sun::star::lang::EventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException); 97 98 /// incremental lock 99 void lock(); 100 /// incremental unlock 101 void unlock(); 102 /// get the lock count locked() const103 sal_Int32 locked() const { return m_nLockCount; } 104 105 void dispose(); 106 }; 107 108 //......................................................................... 109 } // namespace comphelper 110 //......................................................................... 111 112 #endif // INCLUDED_COMPHELPER_SELECTION_MULTIPLEX_HXX 113 114