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27*cdf0e10cSrcweir 
28*cdf0e10cSrcweir #ifndef INCLUDED_SLIDESHOW_DISPOSABLE_HXX
29*cdf0e10cSrcweir #define INCLUDED_SLIDESHOW_DISPOSABLE_HXX
30*cdf0e10cSrcweir 
31*cdf0e10cSrcweir #include <sal/types.h>
32*cdf0e10cSrcweir #include <boost/shared_ptr.hpp>
33*cdf0e10cSrcweir 
34*cdf0e10cSrcweir 
35*cdf0e10cSrcweir /* Definition of Disposable interface */
36*cdf0e10cSrcweir 
37*cdf0e10cSrcweir namespace slideshow
38*cdf0e10cSrcweir {
39*cdf0e10cSrcweir     namespace internal
40*cdf0e10cSrcweir     {
41*cdf0e10cSrcweir         /** Disposable interface
42*cdf0e10cSrcweir 
43*cdf0e10cSrcweir         	With ref-counted objects, deleting object networks
44*cdf0e10cSrcweir         	containing cycles requires a dispose() call, to enforce
45*cdf0e10cSrcweir         	every object to call dispose on and release local
46*cdf0e10cSrcweir         	references.
47*cdf0e10cSrcweir          */
48*cdf0e10cSrcweir         class Disposable
49*cdf0e10cSrcweir         {
50*cdf0e10cSrcweir         public:
51*cdf0e10cSrcweir             virtual ~Disposable() {}
52*cdf0e10cSrcweir 
53*cdf0e10cSrcweir             /** Dispose all object references.
54*cdf0e10cSrcweir 
55*cdf0e10cSrcweir             	An implementor of this method must first call
56*cdf0e10cSrcweir             	dispose() on any of its external references, and
57*cdf0e10cSrcweir             	release them after that.
58*cdf0e10cSrcweir              */
59*cdf0e10cSrcweir             virtual void dispose() = 0;
60*cdf0e10cSrcweir         };
61*cdf0e10cSrcweir 
62*cdf0e10cSrcweir     }
63*cdf0e10cSrcweir }
64*cdf0e10cSrcweir 
65*cdf0e10cSrcweir #endif /* INCLUDED_SLIDESHOW_DISPOSABLE_HXX */
66