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27*cdf0e10cSrcweir 
28*cdf0e10cSrcweir #ifndef SD_PRESENTER_CANVAS_UPDATE_REQUESTER_HEADER
29*cdf0e10cSrcweir #define SD_PRESENTER_CANVAS_UPDATE_REQUESTER_HEADER
30*cdf0e10cSrcweir 
31*cdf0e10cSrcweir #include "precompiled_sd.hxx"
32*cdf0e10cSrcweir 
33*cdf0e10cSrcweir #include <com/sun/star/rendering/XSpriteCanvas.hpp>
34*cdf0e10cSrcweir #include <boost/noncopyable.hpp>
35*cdf0e10cSrcweir #include <boost/shared_ptr.hpp>
36*cdf0e10cSrcweir #include <sal/types.h>
37*cdf0e10cSrcweir #include <tools/solar.h>
38*cdf0e10cSrcweir #include <tools/link.hxx>
39*cdf0e10cSrcweir #include <vector>
40*cdf0e10cSrcweir 
41*cdf0e10cSrcweir namespace css = ::com::sun::star;
42*cdf0e10cSrcweir 
43*cdf0e10cSrcweir namespace sd { namespace presenter {
44*cdf0e10cSrcweir 
45*cdf0e10cSrcweir /** Each UpdateRequester handles update requests (calls to
46*cdf0e10cSrcweir     XCanvas::updateScreen()) for one shared canvas (a canvas that has one or
47*cdf0e10cSrcweir     more PresenterCanvas wrappers).  Multiple calls are collected and lead
48*cdf0e10cSrcweir     to a single call to updateScreen.
49*cdf0e10cSrcweir */
50*cdf0e10cSrcweir class CanvasUpdateRequester : private ::boost::noncopyable
51*cdf0e10cSrcweir {
52*cdf0e10cSrcweir public:
53*cdf0e10cSrcweir     /** Return the Canvas UpdateRequester object for the given shared
54*cdf0e10cSrcweir         canvas.  A new object is created when it does not already exist.
55*cdf0e10cSrcweir     */
56*cdf0e10cSrcweir     static ::boost::shared_ptr<CanvasUpdateRequester> Instance (
57*cdf0e10cSrcweir         const css::uno::Reference<css::rendering::XSpriteCanvas>& rxCanvas);
58*cdf0e10cSrcweir 
59*cdf0e10cSrcweir     void RequestUpdate (const sal_Bool bUpdateAll);
60*cdf0e10cSrcweir 
61*cdf0e10cSrcweir private:
62*cdf0e10cSrcweir     CanvasUpdateRequester (const css::uno::Reference<css::rendering::XSpriteCanvas>& rxCanvas);
63*cdf0e10cSrcweir     ~CanvasUpdateRequester (void);
64*cdf0e10cSrcweir     class Deleter; friend class Deleter;
65*cdf0e10cSrcweir 
66*cdf0e10cSrcweir     typedef ::std::vector<
67*cdf0e10cSrcweir         ::std::pair<
68*cdf0e10cSrcweir             css::uno::Reference<css::rendering::XSpriteCanvas>,
69*cdf0e10cSrcweir            ::boost::shared_ptr<CanvasUpdateRequester> > > RequesterMap;
70*cdf0e10cSrcweir     static RequesterMap maRequesterMap;
71*cdf0e10cSrcweir 
72*cdf0e10cSrcweir     css::uno::Reference<css::rendering::XSpriteCanvas> mxCanvas;
73*cdf0e10cSrcweir     sal_uLong mnUserEventId;
74*cdf0e10cSrcweir     sal_Bool mbUpdateFlag;
75*cdf0e10cSrcweir     DECL_LINK(Callback, void*);
76*cdf0e10cSrcweir };
77*cdf0e10cSrcweir 
78*cdf0e10cSrcweir } } // end of namespace ::sd::presenter
79*cdf0e10cSrcweir 
80*cdf0e10cSrcweir #endif
81