forms/source/xforms/namedcollection.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
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  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_FORMS_SOURCE_XFORMS_NAMEDCOLLECTION_HXX
  21 #define INCLUDED_FORMS_SOURCE_XFORMS_NAMEDCOLLECTION_HXX
  22
  23 #include <collection.hxx>
  24 #include <cppuhelper/implbase1.hxx>
  25 #include <com/sun/star/container/XNameAccess.hpp>
  26
  27 #include <algorithm>
  28
  29 template<class T>
  30 class NamedCollection : public cppu::ImplInheritanceHelper1<
  31                             Collection<T>,
  32                             com::sun::star::container::XNameAccess>
  33 {
  34     using Collection<T>::maItems;
  35     using Collection<T>::getItem;
  36     using Collection<T>::hasItem;
  37
  38 public:
  39     NamedCollection() {}
  40     virtual ~NamedCollection() {}
  41
  42     const T& getItem( const OUString& rName ) const
  43     {
  44         OSL_ENSURE( hasItem( rName ), "invalid name" );
  45         return *findItem( rName );
  46     }
  47
  48     bool hasItem( const OUString& rName ) const
  49     {
  50         return findItem( rName ) != maItems.end();
  51     }
  52
  53     typedef com::sun::star::uno::Sequence<OUString> Names_t;
  54     Names_t getNames() const
  55     {
  56         // iterate over members, and collect all those that have names
  57         std::vector<OUString> aNames;
  58         for( typename std::vector<T>::const_iterator aIter = maItems.begin();
  59              aIter != maItems.end();
  60              ++aIter )
  61         {
  62             com::sun::star::uno::Reference<com::sun::star::container::XNamed>
  63                 xNamed( *aIter, com::sun::star::uno::UNO_QUERY );
  64             if( xNamed.is() )
  65                 aNames.push_back( xNamed->getName() );
  66         }
  67
  68         // copy names to Sequence and return
  69         Names_t aResult( aNames.size() );
  70         OUString* pStrings = aResult.getArray();
  71         std::copy( aNames.begin(), aNames.end(), pStrings );
  72
  73         return aResult;
  74     }
  75
  76 protected:
  77     typename std::vector<T>::const_iterator findItem( const OUString& rName ) const
  78     {
  79         for( typename std::vector<T>::const_iterator aIter = maItems.begin();
  80              aIter != maItems.end();
  81              ++aIter )
  82         {
  83             com::sun::star::uno::Reference<com::sun::star::container::XNamed>
  84                 xNamed( *aIter, com::sun::star::uno::UNO_QUERY );
  85             if( xNamed.is()  &&  xNamed->getName() == rName )
  86                 return aIter;
  87         }
  88         return maItems.end();
  89     }
  90
  91 public:
  92
  93     // XElementAccess
  94     virtual typename Collection<T>::Type_t SAL_CALL getElementType()
  95         throw( typename Collection<T>::RuntimeException_t ) SAL_OVERRIDE
  96     {
  97         return Collection<T>::getElementType();
  98     }
  99
 100     virtual sal_Bool SAL_CALL hasElements()
 101         throw( typename Collection<T>::RuntimeException_t ) SAL_OVERRIDE
 102     {
 103         return Collection<T>::hasElements();
 104     }
 105
 106     // XNameAccess : XElementAccess
 107     virtual typename Collection<T>::Any_t SAL_CALL getByName(
 108         const OUString& aName )
 109         throw( typename Collection<T>::NoSuchElementException_t,
 110                typename Collection<T>::WrappedTargetException_t,
 111                typename Collection<T>::RuntimeException_t ) SAL_OVERRIDE
 112     {
 113         if( hasItem( aName ) )
 114             return com::sun::star::uno::makeAny( getItem( aName ) );
 115         else
 116             throw typename Collection<T>::NoSuchElementException_t();
 117
 118     }
 119
 120     virtual Names_t SAL_CALL getElementNames()
 121         throw( typename Collection<T>::RuntimeException_t ) SAL_OVERRIDE
 122     {
 123         return getNames();
 124     }
 125
 126     virtual sal_Bool SAL_CALL hasByName(
 127         const OUString& aName )
 128         throw( typename Collection<T>::RuntimeException_t ) SAL_OVERRIDE
 129     {
 130         return hasItem( aName ) ? sal_True : sal_False;
 131     }
 132 };
 133
 134 #endif
 135
 136 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */