chart2/source/tools/ModifyListenerCallBack.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_chart2.hxx"
  33
  34 #include "ModifyListenerCallBack.hxx"
  35 #include "MutexContainer.hxx"
  36 #include <cppuhelper/compbase1.hxx>
  37
  38 using namespace ::com::sun::star;
  39 using ::com::sun::star::uno::Reference;
  40
  41 namespace chart {
  42
  43 typedef ::cppu::WeakComponentImplHelper1<
  44         ::com::sun::star::util::XModifyListener >
  45     ModifyListenerCallBack_Base;
  46
  47 class ModifyListenerCallBack_impl
  48     : public ::chart::MutexContainer
  49     , public ModifyListenerCallBack_Base
  50 {
  51 public:
  52     explicit ModifyListenerCallBack_impl( const Link& rCallBack );
  53     virtual ~ModifyListenerCallBack_impl();
  54
  55     void startListening( const Reference< util::XModifyBroadcaster >& xBroadcaster );
  56     void stopListening();
  57
  58     //XModifyListener
  59     virtual void SAL_CALL modified( const lang::EventObject& aEvent ) throw (uno::RuntimeException);
  60
  61     //XEventListener
  62     virtual void SAL_CALL disposing( const lang::EventObject& Source ) throw (uno::RuntimeException);
  63
  64     using ::cppu::WeakComponentImplHelperBase::disposing;
  65
  66 private:
  67     Link m_aLink;//will be callef on modify
  68     Reference< util::XModifyBroadcaster > m_xBroadcaster;//broadcaster to listen at
  69 };
  70
  71
  72 ModifyListenerCallBack_impl::ModifyListenerCallBack_impl( const Link& rCallBack )
  73                         : ModifyListenerCallBack_Base( m_aMutex )
  74                         , m_aLink( rCallBack )
  75                         , m_xBroadcaster(0)
  76 {
  77 }
  78
  79 ModifyListenerCallBack_impl::~ModifyListenerCallBack_impl()
  80 {
  81 }
  82
  83 //XModifyListener
  84 void SAL_CALL ModifyListenerCallBack_impl::modified( const lang::EventObject& /*aEvent*/ ) throw (uno::RuntimeException)
  85 {
  86     m_aLink.Call(0);
  87 }
  88
  89 //XEventListener
  90 void SAL_CALL ModifyListenerCallBack_impl::disposing( const lang::EventObject& /*Source*/ ) throw (uno::RuntimeException)
  91 {
  92     m_xBroadcaster.clear();
  93 }
  94
  95 void ModifyListenerCallBack_impl::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster )
  96 {
  97     if( m_xBroadcaster == xBroadcaster )
  98         return;
  99
 100     stopListening();
 101     m_xBroadcaster = xBroadcaster;
 102     if( m_xBroadcaster.is() )
 103         m_xBroadcaster->addModifyListener( this );
 104 }
 105 void ModifyListenerCallBack_impl::stopListening()
 106 {
 107     if( m_xBroadcaster.is() )
 108     {
 109         m_xBroadcaster->removeModifyListener( this );
 110         m_xBroadcaster.clear();
 111     }
 112 }
 113
 114 //-------------------------------------------
 115
 116 ModifyListenerCallBack::ModifyListenerCallBack( const Link& rCallBack )
 117                         : pModifyListener_impl( new ModifyListenerCallBack_impl(rCallBack) )
 118                         , m_xModifyListener( pModifyListener_impl )
 119 {
 120 }
 121
 122 ModifyListenerCallBack::~ModifyListenerCallBack()
 123 {
 124     stopListening();
 125 }
 126
 127 void ModifyListenerCallBack::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster )
 128 {
 129     pModifyListener_impl->startListening( xBroadcaster );
 130 }
 131 void ModifyListenerCallBack::stopListening()
 132 {
 133     pModifyListener_impl->stopListening();
 134 }
 135
 136 } // namespace chart
 137