109 lines
3.3 KiB
C++
Executable File
109 lines
3.3 KiB
C++
Executable File
#ifndef _MObjectHandle
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#define _MObjectHandle
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//
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// *****************************************************************************
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//-
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// ==========================================================================
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// Copyright (C) Alias Systems, a division of Silicon Graphics Limited.
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// All rights reserved. These coded instructions, statements and computer
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// programs contain unpublished information proprietary to Alias Systems,
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// a division of Silicon Graphics Limited, which is protected by the
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// Canadian and US federal copyright law and may not be disclosed to third
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// parties or copied or duplicated, in whole or in part, without prior
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// written consent of Alias Systems, a division of Silicon Graphics Limited
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// ==========================================================================
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//+
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// *****************************************************************************
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//
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// CLASS: MObjectHandle
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//
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// *****************************************************************************
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//
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// CLASS DESCRIPTION (MObjectHandle)
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//
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// MObjectHandle is a wrapper class for the MObject class. An MObjectHandle
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// will provide a user with added information on the validity of an MObject.
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// Each MObjectHandle that is created registers an entry into a table to
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// maintain state tracking of the MObject that the handle was created for.
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// This will help users track when an MObject is invalid and should be
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// re-retrieved.
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//
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// *****************************************************************************
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#if defined __cplusplus
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// *****************************************************************************
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// INCLUDED HEADER FILES
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#include <maya/MObject.h>
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// *****************************************************************************
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// DECLARATIONS
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// *****************************************************************************
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////////////////////////////////////////////////////////////////////////////////
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// CLASS DECLARATION (MObjectHandle)
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/// Generic Class for validating MObjects
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class OPENMAYA_EXPORT MObjectHandle
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{
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public:
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///
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MObjectHandle();
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///
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MObjectHandle( const MObject& object );
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///
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MObjectHandle( const MObjectHandle &handle );
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///
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~MObjectHandle();
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///
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MObject object() const;
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///
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const MObject & objectRef() const;
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///
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bool isValid() const;
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///
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bool isAlive() const;
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///
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bool operator==(const MObject &object) const;
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///
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bool operator==(const MObjectHandle &object) const;
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///
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bool operator!=(const MObject &object) const;
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///
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bool operator!=(const MObjectHandle &object) const;
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///
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MObjectHandle & operator=(const MObject &object );
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///
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MObjectHandle & operator=(const MObjectHandle &other );
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private:
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// Internal object registration methods
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void registerObject();
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void deregisterObject();
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// Internal destructor callback
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static void registerDestroyedCallback();
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static void deregisterDestroyedCallback();
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static bool fIsCallbackInitialized;
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static void destroyedCallback(void*);
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MObject fObject;
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bool fIsAlive;
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bool fIsDependNode;
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static int fHandleCount;
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};
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// *****************************************************************************
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#endif /* __cplusplus */
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#endif /* _MObjectHandle */
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