SoCenterballDragger.h

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/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
 *  http://www.sgi.com 
 * 
 *  For further information regarding this notice, see: 
 * 
 *  http://oss.sgi.com/projects/GenInfo/NoticeExplan/
 *
 */
 
 
/*
 * Copyright (C) 1990,91   Silicon Graphics, Inc.
 *
 _______________________________________________________________________
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 |
 |   $Revision: 1.1.1.1 $
 |
 |   Description:
 |      This file defines a trackball-like dragger which allows the
 |      user to drag the center of rotation to a new location.
 |
 | NOTE TO DEVELOPERS:
 |     For info about the structure of SoCenterballDragger:
 |     [1] compile: /usr/share/src/Inventor/samples/ivNodeKitStructure
 |     [2] type:    ivNodeKitStructure SoCenterballDragger.
 |     [3] The program prints a diagram of the scene graph and a table with 
 |         information about each part.
 |
 |
 |  The following parts in this dragger are created at construction time.
 |  'ResourceName' corresponds to the name of the default geometry for the
 |  part. The dragger's constructor gets the scene graph for 'ResourceName'
 |  by querying the global dictionary ( SoDB::getByName("ResourceName"); ).  
 |
 |  Resource Name:                           Part Name:
 |
 |       centerballRotator                     - rotator.rotator
 |       centerballRotatorActive               - rotator.rotatorActive
 |
 |       centerballStripe                    - XRotator.rotator
 |       centerballStripeActive              - XRotator.rotatorActive
 |       centerballStripe                    - YRotator.rotator
 |       centerballStripeActive              - YRotator.rotatorActive
 |       centerballStripe                    - ZRotator.rotator
 |       centerballStripeActive              - ZRotator.rotatorActive
 |
 |       centerballCenterChanger              - XCenterChanger.translator
 |       centerballCenterChangerActive        - XCenterChanger.translatorActive
 |       centerballCenterXAxisFeedback        - XCenterChanger.xAxisFeedback
 |       centerballCenterYAxisFeedback        - XCenterChanger.yAxisFeedback
 |
 |       centerballCenterChanger              - YCenterChanger.translator
 |       centerballCenterChangerActive        - YCenterChanger.translatorActive
 |       centerballCenterXAxisFeedback        - YCenterChanger.xAxisFeedback
 |       centerballCenterYAxisFeedback        - YCenterChanger.yAxisFeedback
 |
 |       centerballCenterChanger              - ZCenterChanger.translator
 |       centerballCenterChangerActive        - ZCenterChanger.translatorActive
 |       centerballCenterXAxisFeedback        - ZCenterChanger.xAxisFeedback
 |       centerballCenterYAxisFeedback        - ZCenterChanger.yAxisFeedback
 |
 |       centerballXAxis                       - XAxis
 |       centerballYAxis                       - YAxis
 |       centerballZAxis                       - ZAxis
 |
 |   Author(s): Paul Isaacs, Howard Look
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */
 
#ifndef  _SO_CENTERBALL_DRAGGER_
#define  _SO_CENTERBALL_DRAGGER_
 
#include <Inventor/SbLinear.h>
#include <Inventor/sensors/SoSensor.h>
#include <Inventor/draggers/SoDragger.h>
#include <Inventor/fields/SoSFVec3f.h>
#include <Inventor/fields/SoSFRotation.h>
 
class SoFieldSensor;
class SoInput;
class SoGetBoundingBoxAction;
class SoGetMatrixAction;
 
 
 
 
class INVENTOR_API SoCenterballDragger : public SoDragger {
 
    SO_KIT_HEADER(SoCenterballDragger);
 
    SO_KIT_CATALOG_ENTRY_HEADER(surroundScale);
    SO_KIT_CATALOG_ENTRY_HEADER(antiSquish);
 
    SO_KIT_CATALOG_ENTRY_HEADER(translateToCenter);
 
    SO_KIT_CATALOG_ENTRY_HEADER(lightModel);
 
    SO_KIT_CATALOG_ENTRY_HEADER(rotator);
 
    SO_KIT_CATALOG_ENTRY_HEADER(YRotator);
    SO_KIT_CATALOG_ENTRY_HEADER(ZCenterChanger);
    SO_KIT_CATALOG_ENTRY_HEADER(ZAxisSwitch);
    SO_KIT_CATALOG_ENTRY_HEADER(ZAxis);
 
    SO_KIT_CATALOG_ENTRY_HEADER(rotX90);
 
    SO_KIT_CATALOG_ENTRY_HEADER(ZRotator);
    SO_KIT_CATALOG_ENTRY_HEADER(YCenterChanger);
    SO_KIT_CATALOG_ENTRY_HEADER(YAxisSwitch);
    SO_KIT_CATALOG_ENTRY_HEADER(YAxis);
 
    SO_KIT_CATALOG_ENTRY_HEADER(rotY90);
 
    SO_KIT_CATALOG_ENTRY_HEADER(XRotator);
 
    SO_KIT_CATALOG_ENTRY_HEADER(rot2X90);
 
    SO_KIT_CATALOG_ENTRY_HEADER(XCenterChanger);
    SO_KIT_CATALOG_ENTRY_HEADER(XAxisSwitch);
    SO_KIT_CATALOG_ENTRY_HEADER(XAxis);
 
  public:
    SoCenterballDragger();
 
    SoSFRotation rotation;
    SoSFVec3f    center;
 
  SoEXTENDER public:
    virtual void saveStartParameters();
 
  SoINTERNAL public:
    static void         initClass();    
 
  protected:
    
    SoFieldSensor *rotFieldSensor;
    SoFieldSensor *centerFieldSensor;
    static void fieldSensorCB( void *, SoSensor *);
    static void valueChangedCB( void *, SoDragger *);
 
    void transferCenterDraggerMotion(SoDragger *childDragger);
 
    virtual void        getBoundingBox(SoGetBoundingBoxAction *action);
    virtual void        getMatrix(SoGetMatrixAction *action);
 
    static void kidStartCB(  void *, SoDragger * );
    static void kidFinishCB( void *, SoDragger * );
 
    void setSwitches( SoDragger *activeChild );
 
    virtual bool setUpConnections( bool onOff, bool doItAlways = FALSE );
 
    virtual void setDefaultOnNonWritingFields();
 
    ~SoCenterballDragger();
 
  private:
 
    SbMatrix startCenterMatrix;
 
    static const unsigned char geomBuffer[];
};
 
#endif /* _SO_CENTERBALL_DRAGGER_ */