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      28                 :            : 
      29                 :            : #ifndef SD_SLIDESORTER_CACHE_CONFIGURATION_HXX
      30                 :            : #define SD_SLIDESORTER_CACHE_CONFIGURATION_HXX
      31                 :            : 
      32                 :            : #include <com/sun/star/uno/Any.hxx>
      33                 :            : #include <vcl/timer.hxx>
      34                 :            : #include <com/sun/star/container/XNameAccess.hpp>
      35                 :            : #include <boost/shared_ptr.hpp>
      36                 :            : #include <boost/weak_ptr.hpp>
      37                 :            : 
      38                 :            : namespace sd { namespace slidesorter { namespace cache {
      39                 :            : 
      40                 :            : /** A very simple and easy-to-use access to configuration entries regarding
      41                 :            :     the slide sorter cache.
      42                 :            : */
      43                 :         93 : class CacheConfiguration
      44                 :            : {
      45                 :            : public:
      46                 :            :     /** Return an instance to this class.  The reference is released after 5
      47                 :            :         seconds.  Subsequent calls to this function will create a new
      48                 :            :         instance.
      49                 :            :     */
      50                 :            :     static ::boost::shared_ptr<CacheConfiguration> Instance (void);
      51                 :            : 
      52                 :            :     /** Look up the specified value in
      53                 :            :         MultiPaneGUI/SlideSorter/PreviewCache.   When the specified value
      54                 :            :         does not exist then an empty Any is returned.
      55                 :            :     */
      56                 :            :     ::com::sun::star::uno::Any GetValue (const ::rtl::OUString& rName);
      57                 :            : 
      58                 :            : private:
      59                 :            :     /** When a caller holds a reference after we have released ours we use
      60                 :            :         this weak pointer to avoid creating a new instance.
      61                 :            :     */
      62                 :            :     static ::boost::weak_ptr<CacheConfiguration> mpWeakInstance;
      63                 :            :     static Timer maReleaseTimer;
      64                 :            :     ::com::sun::star::uno::Reference<
      65                 :            :         ::com::sun::star::container::XNameAccess> mxCacheNode;
      66                 :            : 
      67                 :            :     CacheConfiguration (void);
      68                 :            : 
      69                 :            :     DECL_LINK(TimerCallback, void *);
      70                 :            : };
      71                 :            : 
      72                 :            : } } } // end of namespace ::sd::slidesorter::cache
      73                 :            : 
      74                 :            : #endif
      75                 :            : 
      76                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */