xref: /trunk/main/canvas/source/tools/pagemanager.hxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)
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27*cdf0e10cSrcweir 
28*cdf0e10cSrcweir #ifndef INCLUDED_CANVAS_PAGEMANAGER_HXX
29*cdf0e10cSrcweir #define INCLUDED_CANVAS_PAGEMANAGER_HXX
30*cdf0e10cSrcweir 
31*cdf0e10cSrcweir #include <basegfx/vector/b2isize.hxx>
32*cdf0e10cSrcweir #include <canvas/rendering/irendermodule.hxx>
33*cdf0e10cSrcweir #include <canvas/rendering/isurface.hxx>
34*cdf0e10cSrcweir 
35*cdf0e10cSrcweir #include "page.hxx"
36*cdf0e10cSrcweir 
37*cdf0e10cSrcweir namespace canvas
38*cdf0e10cSrcweir {
39*cdf0e10cSrcweir 
40*cdf0e10cSrcweir     //////////////////////////////////////////////////////////////////////////////////
41*cdf0e10cSrcweir     // PageManager
42*cdf0e10cSrcweir     //////////////////////////////////////////////////////////////////////////////////
43*cdf0e10cSrcweir 
44*cdf0e10cSrcweir     class PageManager
45*cdf0e10cSrcweir     {
46*cdf0e10cSrcweir     public:
47*cdf0e10cSrcweir         PageManager( const canvas::IRenderModuleSharedPtr pRenderModule ) :
48*cdf0e10cSrcweir             mpRenderModule(pRenderModule)
49*cdf0e10cSrcweir         {
50*cdf0e10cSrcweir         }
51*cdf0e10cSrcweir 
52*cdf0e10cSrcweir         // returns the maximum size of a hardware
53*cdf0e10cSrcweir         // accelerated page, e.g. OpenGL texture.
54*cdf0e10cSrcweir         ::basegfx::B2ISize getPageSize() const;
55*cdf0e10cSrcweir 
56*cdf0e10cSrcweir         canvas::IRenderModuleSharedPtr getRenderModule() const;
57*cdf0e10cSrcweir 
58*cdf0e10cSrcweir         FragmentSharedPtr allocateSpace( const ::basegfx::B2ISize& rSize );
59*cdf0e10cSrcweir         void              free( const FragmentSharedPtr& pFragment );
60*cdf0e10cSrcweir 
61*cdf0e10cSrcweir         void              nakedFragment( const FragmentSharedPtr& pFragment );
62*cdf0e10cSrcweir 
63*cdf0e10cSrcweir         void              validatePages();
64*cdf0e10cSrcweir 
65*cdf0e10cSrcweir     private:
66*cdf0e10cSrcweir         // the pagemanager needs access to the rendermodule
67*cdf0e10cSrcweir         // since we query for system resources from it.
68*cdf0e10cSrcweir         canvas::IRenderModuleSharedPtr mpRenderModule;
69*cdf0e10cSrcweir 
70*cdf0e10cSrcweir         // here we collect all fragments that will be created
71*cdf0e10cSrcweir         // since we need them for relocation purposes.
72*cdf0e10cSrcweir         typedef std::list<FragmentSharedPtr> FragmentContainer_t;
73*cdf0e10cSrcweir         FragmentContainer_t maFragments;
74*cdf0e10cSrcweir 
75*cdf0e10cSrcweir         // this is the container holding all created pages,
76*cdf0e10cSrcweir         // behind the scenes these are real hardware surfaces.
77*cdf0e10cSrcweir         typedef std::list<PageSharedPtr> PageContainer_t;
78*cdf0e10cSrcweir         PageContainer_t maPages;
79*cdf0e10cSrcweir 
80*cdf0e10cSrcweir         bool relocate( const FragmentSharedPtr& pFragment );
81*cdf0e10cSrcweir     };
82*cdf0e10cSrcweir 
83*cdf0e10cSrcweir     //////////////////////////////////////////////////////////////////////////////////
84*cdf0e10cSrcweir     // PageManagerSharedPtr
85*cdf0e10cSrcweir     //////////////////////////////////////////////////////////////////////////////////
86*cdf0e10cSrcweir 
87*cdf0e10cSrcweir     typedef ::boost::shared_ptr< PageManager > PageManagerSharedPtr;
88*cdf0e10cSrcweir 
89*cdf0e10cSrcweir     //////////////////////////////////////////////////////////////////////////////////
90*cdf0e10cSrcweir     // End of file
91*cdf0e10cSrcweir     //////////////////////////////////////////////////////////////////////////////////
92*cdf0e10cSrcweir }
93*cdf0e10cSrcweir 
94*cdf0e10cSrcweir #endif
95