00001 /*=======================================================================
00002  * Copyright 1991-1996, Silicon Graphics, Inc.
00003  * ALL RIGHTS RESERVED
00004  *
00005  * UNPUBLISHED -- Rights reserved under the copyright laws of the United
00006  * States.   Use of a copyright notice is precautionary only and does not
00007  * imply publication or disclosure.
00008  *
00009  * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND:
00010  * Use, duplication or disclosure by the Government is subject to restrictions
00011  * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights
00012  * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
00013  * in similar or successor clauses in the FAR, or the DOD or NASA FAR
00014  * Supplement.  Contractor/manufacturer is Silicon Graphics, Inc.,
00015  * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
00016  *
00017  * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY
00018  * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION,
00019  * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY
00020  * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON
00021  * GRAPHICS, INC.
00022 **=======================================================================*/
00023 /*=======================================================================
00024 ** Author      : Paul Isaacs (MMM yyyy)
00025 **=======================================================================*/
00026 /*=======================================================================
00027  *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
00028  ***              AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT.                     ***
00029  ***                                                                                ***
00030  ***  REPRODUCTION, DISCLOSURE,  OR USE,  IN WHOLE OR IN PART,  OTHER THAN AS       ***
00031  ***  SPECIFIED  IN THE LICENSE ARE  NOT TO BE  UNDERTAKEN  EXCEPT WITH PRIOR       ***
00032  ***  WRITTEN AUTHORIZATION OF FEI S.A.S.                                           ***
00033  ***                                                                                ***
00034  ***                        RESTRICTED RIGHTS LEGEND                                ***
00035  ***  USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS      ***
00036  ***  WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN      ***
00037  ***  SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT      ***
00038  ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
00039  ***  TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013.             ***
00040  ***                                                                                ***
00041  ***                   COPYRIGHT (C) 1996-2020 BY FEI S.A.S,                        ***
00042  ***                        BORDEAUX, FRANCE                                        ***
00043  ***                      ALL RIGHTS RESERVED                                       ***
00044 **=======================================================================*/
00045 /*=======================================================================
00046 ** Modified by : VSG (MMM YYYY)
00047 **=======================================================================*/
00048 
00049 
00050 
00051 #ifndef  _SO_DIRECTIONAL_LIGHT_MANIP_
00052 #define  _SO_DIRECTIONAL_LIGHT_MANIP_
00053 
00054 #include <Inventor/SbLinear.h>
00055 #include <Inventor/draggers/SoDragger.h>
00056 #include <Inventor/nodes/SoDirectionalLight.h>
00057 #include <Inventor/sensors/SoFieldSensor.h>
00058 
00059 
00061 //
00062 //  Class: SoDirectionalLightManip
00063 //
00064 //  This changes the direction of directional lights.
00065 //
00067 
00068 
00161 class  SoDirectionalLightManip : public SoDirectionalLight {
00162 
00163   SO_NODE_HEADER(SoDirectionalLightManip);
00164 
00165  public:
00169   SoDirectionalLightManip();
00170 
00177   SoDragger *getDragger();
00178 
00197   SbBool replaceNode( SoPath *p );
00198 
00216   SbBool replaceManip(SoPath *p, SoDirectionalLight *newOne ) const;
00217 
00218  private:
00219 
00220   // These functions implement all actions for nodekits.
00221   // They first traverse the children, then use the SoDirectionalLight
00222   // version of the actions. They traverse first so that the light
00223   // will affect objects which follow it in the tree, but not the
00224   // dragger-child.
00225   virtual void doAction( SoAction *action );
00226   virtual void callback( SoCallbackAction *action );
00227   virtual void GLRender( SoGLRenderAction *action );
00228   virtual void getBoundingBox( SoGetBoundingBoxAction *action );
00229   virtual void getMatrix(SoGetMatrixAction *action );
00230   virtual void handleEvent( SoHandleEventAction *action );
00231   virtual void pick( SoPickAction *action );
00232   virtual void search( SoSearchAction *action );
00233   virtual void write( SoWriteAction *action );
00234 
00235  private:
00236   static void initClass(); // initialize the class
00237   static void exitClass();
00238 
00239   virtual SoChildList *getChildren() const;
00240   virtual bool isGroup() { return true; }
00241 
00242   // Internal child management following inheritance of classes.
00243   virtual void internalRemoveChild( int index );
00244   virtual void internalRemoveChild( SoNode *child) { internalRemoveChild(internalFindChild(child)); }
00245   virtual void internalRemoveAllChildren();
00246   virtual void internalAddChild( SoNode *child );
00247   virtual int internalFindChild( const SoNode *child ) const;
00248   virtual void internalInsertChild( SoNode *child, int newChildIndex );
00249   virtual SoNode *internalGetChild( int index) const { return (*children)[index]; }
00250   virtual void internalReplaceChild( int index, SoNode *newChild);
00251   virtual void internalReplaceChild( SoNode *oldChild, SoNode *newChild) { internalReplaceChild(internalFindChild(oldChild),newChild); }
00252 
00253  private:
00254 
00255   // Redefines this to also copy the dragger
00256   virtual void copyContents(const SoFieldContainer *fromFC, SbBool copyConnections);
00257 
00258   static void transferFieldValues( const SoDirectionalLight *from, SoDirectionalLight *to);
00259 
00260   static void valueChangedCB(void *,SoDragger *);
00261 
00262   SoFieldSensor *directionFieldSensor;
00263   SoFieldSensor *colorFieldSensor;
00264   static void fieldSensorCB(void *, SoSensor *);
00265 
00266   void setDragger( SoDragger *newDragger );
00267 
00268   SoChildList *children;
00269   virtual SbBool readInstance(SoInput *in, unsigned short flags);
00270   virtual SbBool readChildren(SoInput *in);
00271 
00272   virtual ~SoDirectionalLightManip();
00273 
00274  private:
00275   int getNumChildren() const { return (children->getLength()); }
00276 };
00277 
00278 #endif /* _SO_DIRECTIONAL_LIGHT_MANIP_ */
00279 
00280 
00281 
00282
Inventor/manips/SoDirectionalLightManip.h
