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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_canvas.hxx"
30 
31 #include <osl/mutex.hxx>
32 
33 #include "dx_winstuff.hxx"
34 #include "dx_gdiplususer.hxx"
35 
36 
37 namespace dxcanvas
38 {
39     namespace
40     {
41         ::osl::Mutex* 	p_gdiPlusUsageCountMutex( osl::Mutex::getGlobalMutex() );
42         int				n_gdiPlusUsageCount( 0 );
43 
44         ULONG_PTR		a_GdiPlusToken;		// GDI+ handle. Owned by this object
45     }
46 
47     GDIPlusUserSharedPtr GDIPlusUser::createInstance()
48     {
49         return GDIPlusUserSharedPtr( new GDIPlusUser() );
50     }
51 
52     GDIPlusUser::~GDIPlusUser()
53     {
54         ::osl::MutexGuard aGuard( *p_gdiPlusUsageCountMutex );
55 
56         --n_gdiPlusUsageCount;
57 
58         if( n_gdiPlusUsageCount == 0 )
59             Gdiplus::GdiplusShutdown( a_GdiPlusToken );
60     }
61 
62     GDIPlusUser::GDIPlusUser()
63     {
64         ::osl::MutexGuard aGuard( *p_gdiPlusUsageCountMutex );
65 
66         if( n_gdiPlusUsageCount == 0 )
67         {
68             // Setup GDI+
69 
70             // No extras here, simply taking GdiplusStartupInput's
71             // default constructor
72             Gdiplus::GdiplusStartupInput gdiPlusStartupInput;
73 
74             Gdiplus::GdiplusStartup( &a_GdiPlusToken,
75                                      &gdiPlusStartupInput,
76                                      NULL );
77         }
78 
79         ++n_gdiPlusUsageCount;
80     }
81 }
82