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lib/mayasdk7/include/maya/MItKeyframe.h

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+
+#ifndef _MItKeyframe
+#define _MItKeyframe
+//
+//-
+// ==========================================================================
+// Copyright (C) 1995 - 2005 Alias Systems Corp. and/or its licensors.  All 
+// rights reserved.
+// 
+// The coded instructions, statements, computer programs, and/or related 
+// material (collectively the "Data") in these files contain unpublished 
+// information proprietary to Alias Systems Corp. ("Alias") and/or its 
+// licensors, which is protected by Canadian and US federal copyright law and 
+// by international treaties.
+// 
+// The Data may not be disclosed or distributed to third parties or be copied 
+// or duplicated, in whole or in part, without the prior written consent of 
+// Alias.
+// 
+// THE DATA IS PROVIDED "AS IS". ALIAS HEREBY DISCLAIMS ALL WARRANTIES RELATING 
+// TO THE DATA, 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 ACCESS TO, USE OF, OR RELIANCE UPON THE DATA.
+// ==========================================================================
+//+
+//
+// CLASS:    MItKeyframe
+//
+// *****************************************************************************
+//
+// CLASS DESCRIPTION (MItKeyframe)
+//
+//	In Maya Animation Curves (Anim Curve) are implemented as Dependency Graph
+//	(DG) Nodes.  Each Node has multiple ordered and indexed keyframes.
+//
+//	The Keyframe Iterator provides methods for iterating over, querying and
+//	editing the keyframes of a Anim Curve Node.
+//
+// *****************************************************************************
+
+#if defined __cplusplus
+
+// *****************************************************************************
+
+// INCLUDED HEADER FILES
+
+
+#include <maya/MFn.h>
+#include <maya/MStatus.h>
+#include <maya/MTime.h>
+
+// *****************************************************************************
+
+// DECLARATIONS
+
+class MObject;
+class MPtrBase;
+
+// *****************************************************************************
+
+// CLASS DECLARATION (MItKeyframe)
+
+///  Keyframe Iterator (OpenMayaAnim)
+/**
+
+Iterate over the keyframes of a particular Anim Curve Node, and query
+and edit the keyframe to which the iterator points.
+
+Determine the time and value of the keyframe, as well as the x,y values
+and type of the tangent to the curve entering (in tangent) and leaving
+(out tangent) the keyframe.
+
+Set the time and value of the keyframe, and the type of the tangents.
+
+*/
+#ifdef _WIN32
+#pragma warning(disable: 4522)
+#endif // _WIN32
+
+class OPENMAYAANIM_EXPORT MItKeyframe {
+public:
+	///
+	enum TangentType {
+		///
+		kTangentGlobal = 0,
+		///
+		kTangentFixed,
+		///
+		kTangentLinear,
+		///
+		kTangentFlat,
+		///
+		kTangentSmooth,
+		///
+		kTangentStep,
+		///
+		kTangentSlow,
+		///
+		kTangentFast,
+		///
+		kTangentClamped,
+		///
+		kTangentPlateau,
+        ///
+        kTangentStepNext
+	};
+	///
+	MItKeyframe( MObject & animCurveNode, MStatus * ReturnStatus = NULL );
+	///
+	~MItKeyframe();
+	///
+	MStatus     reset( MObject & animCurveNode );
+	///
+	MStatus     reset();
+	///
+	MStatus     next();
+	///
+	bool        isDone( MStatus * ReturnStatus = NULL );
+	///
+	MTime       time( MStatus * ReturnStatus = NULL );
+	///
+	MStatus     setTime( MTime time );
+	///
+	double      value( MStatus * ReturnStatus = NULL );
+	///
+	MStatus     setValue( double value );
+	///
+	TangentType inTangentType( MStatus * ReturnStatus = NULL );
+	///
+	TangentType outTangentType( MStatus * ReturnStatus = NULL );
+	///
+	MStatus     setInTangentType( TangentType tangentType );
+	///
+	MStatus     setOutTangentType( TangentType tangentType );
+	///
+	MStatus     getTangentOut( float &x, float &y );
+	///
+	MStatus     getTangentIn( float &x, float &y );
+	///
+	bool		tangentsLocked( MStatus * ReturnStatus = NULL ) const;
+	///
+	MStatus		setTangentsLocked( bool locked );
+
+protected:
+// No protected members
+
+private:
+	static const char* className();
+    MPtrBase *        f_ptr;
+	unsigned          f_index;
+};
+
+#ifdef _WIN32
+#pragma warning(default: 4522)
+#endif // _WIN32
+
+// *****************************************************************************
+#endif /* __cplusplus */
+#endif /* _MItKeyframe */