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Torque/SDK/lib/mayasdk6/include/maya/MComputation.h

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+#ifndef _MComputation
+#define _MComputation
+//
+//-
+// ==========================================================================
+// Copyright  (C)  Alias Systems,  a division  of  Silicon Graphics  Limited.
+// All rights  reserved.  These coded  instructions,  statements and computer
+// programs  contain  unpublished information  proprietary to  Alias Systems,
+// a  division  of  Silicon  Graphics  Limited,  which  is  protected by  the
+// Canadian  and  US federal copyright law and  may not be disclosed to third
+// parties or  copied  or  duplicated,  in  whole  or in part,  without prior
+// written  consent  of Alias Systems, a division of Silicon Graphics Limited
+// ==========================================================================
+//+
+//
+// CLASS:    MComputation
+//
+// *****************************************************************************
+//
+// CLASS DESCRIPTION (MComputation)
+//
+// An MComputation allows long computations to check for user interrupts.  It is
+// very simple to use.  Create a new MComputation object and call the
+// beginComputation method at the beginning of the computation and call
+// the endComputation method when you finish.  Then, during the computation,
+// use the isInterruptRequested method to check if the user has requested
+// that the computation terminate.
+// 
+// Example:
+// 
+//     MComputation computation;
+//     computation.beginComputation();
+//     for (int i= 1; i<1000; i++) {
+//         Computation();  // Some expensive operation
+//         if  (computation.isInterruptRequested()) break ;
+//     }
+//     computation.endComputation();			
+//
+//
+// *****************************************************************************
+
+#if defined __cplusplus
+
+// *****************************************************************************
+
+// INCLUDED HEADER FILES
+
+
+#include <maya/MTypes.h>
+
+// *****************************************************************************
+// FORWARD DECLARATIONS
+// *****************************************************************************
+
+// CLASS DECLARATION (MComputation)
+
+/// Interupt monitor for long computations
+/**
+ An MComputation is used to monitor user-interupts during int computations.
+*/
+
+#if defined(_WIN32)
+#pragma warning(disable: 4522)
+#endif // _WIN32
+
+class OPENMAYA_EXPORT MComputation {
+
+public:  
+	///
+			MComputation();
+	///
+	virtual	~MComputation();
+	///
+    void	beginComputation();
+	///
+    bool	isInterruptRequested();
+	///
+    void	endComputation();
+
+protected:
+// No protected members
+
+private:
+    const char* className() const;
+	void *f_data;
+};
+
+#if defined(_WIN32)
+#pragma warning(default: 4522)
+#endif // _WIN32
+
+// *****************************************************************************
+#endif /* __cplusplus */
+#endif /* _MComputation */