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80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
/*
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* Copyright (c) 2001, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#ifndef _DEVICES_H_
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#define _DEVICES_H_
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#include "awt.h"
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#include "awt_Toolkit.h"
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#include "awt_Win32GraphicsDevice.h"
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class AwtWin32GraphicsDevice;
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class Devices {
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public:
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static Devices* GetInstance();
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static BOOL UpdateInstance(JNIEnv *env);
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int GetNumDevices() { return numDevices; }
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AwtWin32GraphicsDevice* GetDeviceReference(int index, BOOL adjust = TRUE);
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AwtWin32GraphicsDevice* GetDevice(int index, BOOL adjust = TRUE);
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int Release();
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AwtWin32GraphicsDevice** GetRawArray();
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class InstanceAccess {
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public:
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INLINE InstanceAccess() { devices = Devices::GetInstance(); }
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INLINE ~InstanceAccess() { devices->Release(); }
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Devices* operator->() { return devices; }
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private:
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Devices* devices;
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// prevent bad things like copying or getting address of
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InstanceAccess& operator=(const InstanceAccess&);
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InstanceAccess* operator&();
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};
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friend class InstanceAccess;
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private:
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Devices(int numElements);
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void AddReference();
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AwtWin32GraphicsDevice** devices;
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int refCount;
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int numDevices;
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static Devices* theInstance;
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static CriticalSection arrayLock;
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};
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// Some helper functions (from awt_MMStub.h/cpp)
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BOOL WINAPI MonitorBounds (HMONITOR, RECT*);
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int WINAPI CountMonitors (void);
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#endif // _DEVICES_H_
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