/*

 * Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: Group interface

 *

 */

 #ifndef __M3G_GROUP_H__

 #define __M3G_GROUP_H__

 /*!

  * \internal

  * \file

  * \brief Group interface

  */

 #include "m3g_gl.h"

 #include "m3g_node.h"

 typedef M3Gushort GroupDescendantCount;

 struct M3GGroupImpl

 {

 	Node node;

 	Node *firstChild;

     AABB *bbox;

     GroupDescendantCount numRenderables, numNonCullables;

 };

 /*----------------------------------------------------------------------

  * Virtual functions

  *--------------------------------------------------------------------*/

 static void m3gDestroyGroup(Object *obj);

 static M3Gbool m3gGroupAlign(Node *self, const Node *refNode);

 static M3Gbool m3gGroupSetupRender(Node *self,

                                    const Node *caller,

                                    SetupRenderState *s,

                                    RenderQueue *renderQueue);

 static M3Gint m3gGroupApplyAnimation(Object *self, M3Gint time);

 static M3Gbool m3gGroupRayIntersect(	Node *self,

 								M3Gint mask,

 								M3Gfloat *ray,

 								RayIntersection *ri,

 								Matrix *toGroup);

 static M3Gint m3gGroupDoGetReferences(Object *self, Object **references);

 static M3Gint m3gGroupGetBBox(Node *self, AABB *bbox);

 static Object *m3gGroupFindID(Object *self, M3Gint userID);

 static M3Gbool m3gGroupDuplicate(const Object *original, Object **clone, Object **pairs, M3Gint *numPairs);

 static M3Gbool m3gGroupValidate(Node *self, M3Gbitmask stateBits, M3Gint scope);

 static void m3gGroupUpdateDuplicateReferences(Node *self, Object **pairs, M3Gint numPairs);

 /*----------------------------------------------------------------------

  * Internal functions

  *--------------------------------------------------------------------*/

 static void m3gInitGroup(Interface *m3g,

                          Group *group,

                          M3GClass classID);

 #endif /*__M3G_GROUP_H__*/