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lib/mayasdk7/include/maya/MDrawProcedureBase.h

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+#ifndef _MDrawProcedureBase
+#define _MDrawProcedureBase
+//
+//-
+// ==========================================================================
+// Copyright (C) Alias Systems Corp., and/or its licensors ("Alias").  
+// All rights reserved.  These coded instructions, statements, computer  
+// programs, and/or related material (collectively, the "Material")
+// contain unpublished information proprietary to Alias, which is
+// protected by Canadian and US federal copyright law and by international
+// treaties. This Material may not be disclosed to third parties, or be copied
+// or duplicated, in whole or in part, without the prior written consent of
+// Alias.  ALIAS HEREBY DISCLAIMS ALL WARRANTIES RELATING TO THE MATERIAL,
+// INCLUDING, WITHOUT LIMITATION, ANY AND ALL EXPRESS OR IMPLIED WARRANTIES OF
+// NON-INFRINGEMENT, MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
+// IN NO EVENT SHALL ALIAS BE LIABLE FOR ANY DAMAGES WHATSOEVER, WHETHER DIRECT,
+// INDIRECT, SPECIAL, OR PUNITIVE, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, OR IN EQUITY, ARISING OUT OF OR RELATED TO THE
+// ACCESS TO, USE OF, OR RELIANCE UPON THE MATERIAL.
+// ==========================================================================
+//+
+//
+// CLASS:    MDrawProcedureBase
+//
+// *****************************************************************************
+//
+// CLASS DESCRIPTION (MDrawProcedureBase)
+//
+// This class provides an interface through which a plugin can implement a class to provide 
+// custom hardware drawing effects.
+// 
+// The derived class needs to be registered with using <to be completed>
+// Please refer to documentation of <> for more details.
+// 
+// Each procedure has a user defined string name and can be enabled or disabled. 
+// There is also a logical "call location" which defines when within a rendering loop that 
+// the draw procedure will be called. Name, enabling and call location must be defined.
+// 
+// Additionally, the procedure can define a desired sequence number. All draw procedures
+// are sorted by sequence number. Procedures with lower sequence number will be
+// invoked first. The number 0 is the lowest supported sequence number and is the default.
+// When more than one procedure has a sequence number, the order of registration
+// will determine the invocation order.
+// 
+// All derived classes must over the execute() method. This is the method that 
+// will be called by the hardware renderer to which the procedure is attached.
+// The call will only be made if the procedure is enabled.
+// 
+// *****************************************************************************
+
+#if defined __cplusplus
+
+#ifdef _WIN32
+#pragma warning(disable: 4522)
+#endif // _WIN32
+
+// INCLUDED HEADER FILES
+
+
+// INCLUDES
+#include <maya/MString.h>
+
+// CLASS DECLARATION (MDrawProcedureBase)
+
+/// Base user draw procedure class
+
+
+class OPENMAYARENDER_EXPORT MDrawProcedureBase 
+{
+public:
+	// constructor 
+	///
+	MDrawProcedureBase(const MString &name);
+	
+	// destructor 
+	///
+	virtual	~MDrawProcedureBase();
+
+	// Method called to perform drawing effect. Derived classes must implement this.
+	///
+	virtual bool execute() = 0;
+
+	// Set the procedure to be enabled or not.
+	///
+	void		setEnabled(bool value);
+
+	// Returns if the procedure is enabled.
+	///
+	bool		enabled() const ;	
+
+	//	Set the name of the procedure
+	///
+	void		setName( const MString &name );
+
+	// Get the name of the procedure
+	///
+	const MString &name() const;
+
+protected :
+	// Protected default constructor
+	MDrawProcedureBase();
+
+	// Name of the procedure
+	MString		fName;
+
+	// Enable / disable toggle
+	bool		fEnabled;
+	
+private:
+	// No private members
+};
+
+#ifdef _WIN32
+#pragma warning(default: 4522)
+#endif // _WIN32
+
+// *****************************************************************************
+
+#endif /* __cplusplus */
+#endif /* _MDrawProcedureBase */