chart2/source/tools/ModifyListenerCallBack.cxx

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  27
  28 // MARKER(update_precomp.py): autogen include statement, do not remove
  29 #include "precompiled_chart2.hxx"
  30
  31 #include "ModifyListenerCallBack.hxx"
  32 #include "MutexContainer.hxx"
  33 #include <cppuhelper/compbase1.hxx>
  34
  35 using namespace ::com::sun::star;
  36 using ::com::sun::star::uno::Reference;
  37
  38 namespace chart {
  39
  40 typedef ::cppu::WeakComponentImplHelper1<
  41         ::com::sun::star::util::XModifyListener >
  42     ModifyListenerCallBack_Base;
  43
  44 class ModifyListenerCallBack_impl
  45     : public ::chart::MutexContainer
  46     , public ModifyListenerCallBack_Base
  47 {
  48 public:
  49     explicit ModifyListenerCallBack_impl( const Link& rCallBack );
  50     virtual ~ModifyListenerCallBack_impl();
  51
  52     void startListening( const Reference< util::XModifyBroadcaster >& xBroadcaster );
  53     void stopListening();
  54
  55     //XModifyListener
  56     virtual void SAL_CALL modified( const lang::EventObject& aEvent ) throw (uno::RuntimeException);
  57
  58     //XEventListener
  59     virtual void SAL_CALL disposing( const lang::EventObject& Source ) throw (uno::RuntimeException);
  60
  61     using ::cppu::WeakComponentImplHelperBase::disposing;
  62
  63 private:
  64     Link m_aLink;//will be callef on modify
  65     Reference< util::XModifyBroadcaster > m_xBroadcaster;//broadcaster to listen at
  66 };
  67
  68
  69 ModifyListenerCallBack_impl::ModifyListenerCallBack_impl( const Link& rCallBack )
  70                         : ModifyListenerCallBack_Base( m_aMutex )
  71                         , m_aLink( rCallBack )
  72                         , m_xBroadcaster(0)
  73 {
  74 }
  75
  76 ModifyListenerCallBack_impl::~ModifyListenerCallBack_impl()
  77 {
  78 }
  79
  80 //XModifyListener
  81 void SAL_CALL ModifyListenerCallBack_impl::modified( const lang::EventObject& /*aEvent*/ ) throw (uno::RuntimeException)
  82 {
  83     m_aLink.Call(0);
  84 }
  85
  86 //XEventListener
  87 void SAL_CALL ModifyListenerCallBack_impl::disposing( const lang::EventObject& /*Source*/ ) throw (uno::RuntimeException)
  88 {
  89     m_xBroadcaster.clear();
  90 }
  91
  92 void ModifyListenerCallBack_impl::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster )
  93 {
  94     if( m_xBroadcaster == xBroadcaster )
  95         return;
  96
  97     stopListening();
  98     m_xBroadcaster = xBroadcaster;
  99     if( m_xBroadcaster.is() )
 100         m_xBroadcaster->addModifyListener( this );
 101 }
 102 void ModifyListenerCallBack_impl::stopListening()
 103 {
 104     if( m_xBroadcaster.is() )
 105     {
 106         m_xBroadcaster->removeModifyListener( this );
 107         m_xBroadcaster.clear();
 108     }
 109 }
 110
 111 //-------------------------------------------
 112
 113 ModifyListenerCallBack::ModifyListenerCallBack( const Link& rCallBack )
 114                         : pModifyListener_impl( new ModifyListenerCallBack_impl(rCallBack) )
 115                         , m_xModifyListener( pModifyListener_impl )
 116 {
 117 }
 118
 119 ModifyListenerCallBack::~ModifyListenerCallBack()
 120 {
 121     stopListening();
 122 }
 123
 124 void ModifyListenerCallBack::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster )
 125 {
 126     pModifyListener_impl->startListening( xBroadcaster );
 127 }
 128 void ModifyListenerCallBack::stopListening()
 129 {
 130     pModifyListener_impl->stopListening();
 131 }
 132
 133 } // namespace chart
 134