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 <iostream>
  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         { std::cout << "< MyCounterImpl ctor called >" << std::endl; }
  81     ~MyCounterImpl()
  82         { std::cout << "< MyCounterImpl dtor called >" << std::endl; }
  83
  84     // XInterface implementation
  85     virtual void SAL_CALL acquire() SAL_NOEXCEPT
  86         { ++m_nRefCount; }
  87     virtual void SAL_CALL release() SAL_NOEXCEPT
  88         { if (! --m_nRefCount) delete this; }
  89     virtual Any SAL_CALL queryInterface( const Type & rType )
  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(  );
  97     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName );
  98     virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(  );
  99     static Sequence< OUString > SAL_CALL getSupportedServiceNames_Static(  );
 100
 101     // XCountable implementation
 102     virtual sal_Int32 SAL_CALL getCount()
 103         { return m_nCount; }
 104     virtual void SAL_CALL setCount( sal_Int32 nCount )
 105         { m_nCount = nCount; }
 106     virtual sal_Int32 SAL_CALL increment()
 107         { return (++m_nCount); }
 108     virtual sal_Int32 SAL_CALL decrement()
 109         { return (--m_nCount); }
 110 };
 111
 112 OUString SAL_CALL MyCounterImpl::getImplementationName(  )
 113 {
 114     return OUString( IMPLNAME );
 115 }
 116
 117 sal_Bool SAL_CALL MyCounterImpl::supportsService( const OUString& ServiceName )
 118 {
 119     return cppu::supportsService(this, ServiceName);
 120 }
 121
 122 Sequence<OUString> SAL_CALL MyCounterImpl::getSupportedServiceNames(  )
 123 {
 124     return getSupportedServiceNames_Static();
 125 }
 126
 127 Sequence<OUString> SAL_CALL MyCounterImpl::getSupportedServiceNames_Static(  )
 128 {
 129     OUString aName( SERVICENAME );
 130     return Sequence< OUString >( &aName, 1 );
 131 }
 132
 133 /**
 134  * Function to create a new component instance; is needed by factory helper implementation.
 135  * @param xMgr service manager to if the components needs other component instances
 136  */
 137 Reference< XInterface > SAL_CALL MyCounterImpl_create(
 138     const Reference< XMultiServiceFactory > & xMgr )
 139 {
 140     return Reference<XInterface>(static_cast<XCountable*>(new MyCounterImpl(xMgr)));
 141 }
 142
 143 /**
 144  * This function is called to get service factories for an implementation.
 145  *
 146  * @param pImplName       name of implementation
 147  * @param pServiceManager a service manager, need for component creation
 148  * @param pRegistryKey    the registry key for this component, need for persistent data
 149  * @return a component factory
 150  */
 151 extern "C" SAL_DLLPUBLIC_EXPORT void * SAL_CALL component_getFactory(const char * pImplName, void * pServiceManager, void * pRegistryKey)
 152 {
 153     void * pRet = 0;
 154
 155     if (rtl_str_compare( pImplName, IMPLNAME ) == 0)
 156     {
 157         Reference< XSingleServiceFactory > xFactory( createSingleFactory(
 158             reinterpret_cast< XMultiServiceFactory * >( pServiceManager ),
 159             OUString( IMPLNAME ),
 160             MyCounterImpl_create,
 161             MyCounterImpl::getSupportedServiceNames_Static() ) );
 162
 163         if (xFactory.is())
 164         {
 165             xFactory->acquire();
 166             pRet = xFactory.get();
 167         }
 168     }
 169
 170     return pRet;
 171 }
 172
 173 extern "C" SAL_DLLPUBLIC_EXPORT void SAL_CALL
 174 component_getImplementationEnvironment(
 175     char const ** ppEnvTypeName, uno_Environment **)
 176 {
 177     *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
 178 }
 179
 180 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */