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25 
26 
27 #ifndef _DEVICES_H_
28 #define _DEVICES_H_
29 
30 #include "awt.h"
31 #include "awt_Toolkit.h"
32 #include "awt_Win32GraphicsDevice.h"
33 
34 class AwtWin32GraphicsDevice;
35 
36 class Devices {
37 
38 public:
39 static Devices*                 GetInstance();
40 static BOOL                     UpdateInstance(JNIEnv *env);
GetNumDevices()41        int                      GetNumDevices() { return numDevices; }
42        AwtWin32GraphicsDevice*  GetDeviceReference(int index, BOOL adjust = TRUE);
43        AwtWin32GraphicsDevice*  GetDevice(int index, BOOL adjust = TRUE);
44        int                      Release();
45        AwtWin32GraphicsDevice** GetRawArray();
46 
47        class InstanceAccess {
48        public:
InstanceAccess()49            INLINE   InstanceAccess() { devices = Devices::GetInstance(); }
~InstanceAccess()50            INLINE  ~InstanceAccess() { devices->Release(); }
51            Devices* operator->()     { return devices; }
52         private:
53            Devices* devices;
54            // prevent bad things like copying or getting address of
55            InstanceAccess& operator=(const InstanceAccess&);
56            InstanceAccess* operator&();
57        };
58 friend class InstanceAccess;
59 
60 private:
61                                 Devices(int numElements);
62        void                     AddReference();
63 
64        AwtWin32GraphicsDevice** devices;
65        int                      refCount;
66        int                      numDevices;
67 
68 static Devices*                 theInstance;
69 static CriticalSection          arrayLock;
70 
71 };
72 
73 // Some helper functions (from awt_MMStub.h/cpp)
74 
75 BOOL WINAPI MonitorBounds (HMONITOR, RECT*);
76 
77 #endif _DEVICES_H_
78