1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: Transformable interface

    15 *

    16 */

    17 

    18 #ifndef __M3G_TRANSFORMABLE_H__

    19 #define __M3G_TRANSFORMABLE_H__

    20 

    21 /*!

    22  * \internal

    23  * \file

    24  * \brief Transformable interface

    25  */

    26 

    27 #include "m3g_object.h"

    28 

    29 /*----------------------------------------------------------------------

    30  * Class definition

    31  *--------------------------------------------------------------------*/

    32 

    33 /*!

    34  * \internal

    35  * \brief Transformable class virtual functions

    36  *

    37  * \note This is currently empty, but may find use in the future, so

    38  * we're retaining it for the time being.

    39  */

    40 typedef struct

    41 {

    42 	ObjectVFTable object;

    43 } TransformableVFTable;

    44 

    45 /*!

    46  * \internal

    47  * \brief Transformable object instance data

    48  */

    49 struct M3GTransformableImpl

    50 {

    51     Object object;

    52     

    53 	Quat orientation;

    54 	M3Gfloat sx, sy, sz;

    55 	M3Gfloat tx, ty, tz;

    56 	Matrix *matrix;

    57 };

    58 

    59 /* Sanity check; if this assert fires, check the compiler padding

    60  * settings */

    61 

    62 M3G_CT_ASSERT(sizeof(Transformable) == sizeof(Object) + 44);

    63 

    64 

    65 /*----------------------------------------------------------------------

    66  * Internal functions

    67  *--------------------------------------------------------------------*/

    68 

    69 static void     m3gInitTransformable    (Transformable *tf, Interface *m3g, M3GClass classID);

    70 static void     m3gDestroyTransformable (Object *obj);

    71 

    72 static M3Gbool  m3gGetInverseCompositeTransform (M3GTransformable handle,

    73                                                  M3GMatrix *transform);

    74 static M3Gbool  m3gTransformableIsCompatible    (M3Gint property);

    75 static void     m3gTransformableUpdateProperty  (Object *self, M3Gint property, M3Gint valueSize, const M3Gfloat *value);

    76 static M3Gbool  m3gTransformableDuplicate       (const Object *original, Object **clone, Object **pairs, M3Gint *numPairs);

    77 

    78 static void m3gInvalidateTransformable(Transformable *self);

    79 

    80 #endif /*__M3G_TRANSFORMABLE_H__*/