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27 
28 #ifndef INCLUDED_CANVAS_PAGEMANAGER_HXX
29 #define INCLUDED_CANVAS_PAGEMANAGER_HXX
30 
31 #include <basegfx/vector/b2isize.hxx>
32 #include <canvas/rendering/irendermodule.hxx>
33 #include <canvas/rendering/isurface.hxx>
34 
35 #include "page.hxx"
36 
37 namespace canvas
38 {
39 
40 	//////////////////////////////////////////////////////////////////////////////////
41 	// PageManager
42 	//////////////////////////////////////////////////////////////////////////////////
43 
44 	class PageManager
45 	{
46     public:
47         PageManager( const canvas::IRenderModuleSharedPtr pRenderModule ) :
48             mpRenderModule(pRenderModule)
49         {
50         }
51 
52         // returns the maximum size of a hardware
53         // accelerated page, e.g. OpenGL texture.
54         ::basegfx::B2ISize getPageSize() const;
55 
56         canvas::IRenderModuleSharedPtr getRenderModule() const;
57 
58         FragmentSharedPtr allocateSpace( const ::basegfx::B2ISize& rSize );
59         void              free( const FragmentSharedPtr& pFragment );
60 
61         void              nakedFragment( const FragmentSharedPtr& pFragment );
62 
63         void              validatePages();
64 
65     private:
66         // the pagemanager needs access to the rendermodule
67         // since we query for system resources from it.
68         canvas::IRenderModuleSharedPtr mpRenderModule;
69 
70         // here we collect all fragments that will be created
71         // since we need them for relocation purposes.
72         typedef std::list<FragmentSharedPtr> FragmentContainer_t;
73         FragmentContainer_t maFragments;
74 
75         // this is the container holding all created pages,
76         // behind the scenes these are real hardware surfaces.
77         typedef std::list<PageSharedPtr> PageContainer_t;
78         PageContainer_t maPages;
79 
80         bool relocate( const FragmentSharedPtr& pFragment );
81 	};
82 
83 	//////////////////////////////////////////////////////////////////////////////////
84 	// PageManagerSharedPtr
85 	//////////////////////////////////////////////////////////////////////////////////
86 
87     typedef ::boost::shared_ptr< PageManager > PageManagerSharedPtr;
88 
89 	//////////////////////////////////////////////////////////////////////////////////
90 	// End of file
91 	//////////////////////////////////////////////////////////////////////////////////
92 }
93 
94 #endif
95