odk/examples/cpp/counter/counter.cxx

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  35
  36 /*
  37  * service implementation:   foo.Counter
  38  * exported interfaces:      foo.XCounter
  39  *
  40  * simple example component implementing a counter
  41  */
  42
  43 #include <stdio.h>
  44 #include <rtl/ustring.hxx>
  45 #include <uno/lbnames.h>
  46 #include <cppuhelper/queryinterface.hxx>
  47 #include <cppuhelper/factory.hxx>
  48 #include <cppuhelper/supportsservice.hxx>
  49 // generated c++ interfaces
  50 #include <com/sun/star/lang/XSingleServiceFactory.hpp>
  51 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  52 #include <com/sun/star/lang/XServiceInfo.hpp>
  53 #include <com/sun/star/registry/XRegistryKey.hpp>
  54 #include <foo/XCountable.hpp>
  55
  56 #define SERVICENAME "foo.Counter"
  57 #define IMPLNAME    "com.sun.star.comp.example.cpp.Counter"
  58
  59 using namespace ::rtl;
  60 using namespace ::osl;
  61 using namespace ::cppu;
  62 using namespace ::com::sun::star::uno;
  63 using namespace ::com::sun::star::lang;
  64 using namespace ::com::sun::star::registry;
  65 using namespace ::foo;
  66
  67 class MyCounterImpl
  68     : public XCountable
  69     , public XServiceInfo
  70 {
  71     // to obtain other services if needed
  72     Reference< XMultiServiceFactory > m_xServiceManager;
  73
  74     sal_Int32 m_nRefCount;
  75     sal_Int32 m_nCount;
  76
  77 public:
  78     MyCounterImpl( const Reference< XMultiServiceFactory > & xServiceManager )
  79         : m_xServiceManager( xServiceManager ), m_nRefCount( 0 )
  80         { printf( "< MyCounterImpl ctor called >\n" ); }
  81     ~MyCounterImpl()
  82         { printf( "< MyCounterImpl dtor called >\n" ); }
  83
  84     // XInterface implementation
  85     virtual void SAL_CALL acquire() throw ()
  86         { ++m_nRefCount; }
  87     virtual void SAL_CALL release() throw ()
  88         { if (! --m_nRefCount) delete this; }
  89     virtual Any SAL_CALL queryInterface( const Type & rType ) throw (RuntimeException)
  90         { return cppu::queryInterface(rType,
  91                                       static_cast< XInterface* >( static_cast< XServiceInfo* >( this ) ),
  92                                       static_cast< XCountable* >( this ),
  93                                       static_cast< XServiceInfo* >( this ) ); }
  94
  95     // XServiceInfo implementation
  96     virtual OUString SAL_CALL getImplementationName(  ) throw(RuntimeException);
  97     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw(RuntimeException);
  98     virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) throw(RuntimeException);
  99     static Sequence< OUString > SAL_CALL getSupportedServiceNames_Static(  );
 100
 101     // XCountable implementation
 102     virtual sal_Int32 SAL_CALL getCount() throw (RuntimeException)
 103         { return m_nCount; }
 104     virtual void SAL_CALL setCount( sal_Int32 nCount ) throw (RuntimeException)
 105         { m_nCount = nCount; }
 106     virtual sal_Int32 SAL_CALL increment() throw (RuntimeException)
 107         { return (++m_nCount); }
 108     virtual sal_Int32 SAL_CALL decrement() throw (RuntimeException)
 109         { return (--m_nCount); }
 110 };
 111
 112 OUString SAL_CALL MyCounterImpl::getImplementationName(  )
 113     throw(RuntimeException)
 114 {
 115     return OUString( IMPLNAME );
 116 }
 117
 118 sal_Bool SAL_CALL MyCounterImpl::supportsService( const OUString& ServiceName )
 119     throw(RuntimeException)
 120 {
 121     return cppu::supportsService(this, ServiceName);
 122 }
 123
 124 Sequence<OUString> SAL_CALL MyCounterImpl::getSupportedServiceNames(  )
 125     throw(RuntimeException)
 126 {
 127     return getSupportedServiceNames_Static();
 128 }
 129
 130 Sequence<OUString> SAL_CALL MyCounterImpl::getSupportedServiceNames_Static(  )
 131 {
 132     OUString aName( SERVICENAME );
 133     return Sequence< OUString >( &aName, 1 );
 134 }
 135
 136 /**
 137  * Function to create a new component instance; is needed by factory helper implementation.
 138  * @param xMgr service manager to if the components needs other component instances
 139  */
 140 Reference< XInterface > SAL_CALL MyCounterImpl_create(
 141     const Reference< XMultiServiceFactory > & xMgr )
 142 {
 143     return Reference<XInterface>(static_cast<XCountable*>(new MyCounterImpl(xMgr)));
 144 }
 145
 146 /**
 147  * This function is called to get service factories for an implementation.
 148  *
 149  * @param pImplName       name of implementation
 150  * @param pServiceManager a service manager, need for component creation
 151  * @param pRegistryKey    the registry key for this component, need for persistent data
 152  * @return a component factory
 153  */
 154 extern "C" SAL_DLLPUBLIC_EXPORT void * SAL_CALL component_getFactory(const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey)
 155 {
 156     void * pRet = 0;
 157
 158     if (rtl_str_compare( pImplName, IMPLNAME ) == 0)
 159     {
 160         Reference< XSingleServiceFactory > xFactory( createSingleFactory(
 161             reinterpret_cast< XMultiServiceFactory * >( pServiceManager ),
 162             OUString( IMPLNAME ),
 163             MyCounterImpl_create,
 164             MyCounterImpl::getSupportedServiceNames_Static() ) );
 165
 166         if (xFactory.is())
 167         {
 168             xFactory->acquire();
 169             pRet = xFactory.get();
 170         }
 171     }
 172
 173     return pRet;
 174 }
 175
 176 extern "C" SAL_DLLPUBLIC_EXPORT void SAL_CALL
 177 component_getImplementationEnvironment(
 178     char const ** ppEnvTypeName, uno_Environment **)
 179 {
 180     *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
 181 }
 182
 183 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */