SoXtFlyViewer.h

/*=======================================================================
 * Copyright 1991-1996, Silicon Graphics, Inc.
 * ALL RIGHTS RESERVED
 *
 * UNPUBLISHED -- Rights reserved under the copyright laws of the United
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 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND:
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 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights
 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
 * in similar or successor clauses in the FAR, or the DOD or NASA FAR
 * Supplement.  Contractor/manufacturer is Silicon Graphics, Inc.,
 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
 *
 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY
 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION,
 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY
 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON
 * GRAPHICS, INC.
**=======================================================================*/
/*=======================================================================
** Author      : Alain Dumesny (MMM yyyy)
**=======================================================================*/
/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
 ***              AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT.                     ***
 ***                                                                                ***
 ***  REPRODUCTION, DISCLOSURE,  OR USE,  IN WHOLE OR IN PART,  OTHER THAN AS       ***
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 ***  WRITTEN AUTHORIZATION OF FEI S.A.S.                                           ***
 ***                                                                                ***
 ***                        RESTRICTED RIGHTS LEGEND                                ***
 ***  USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS      ***
 ***  WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN      ***
 ***  SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT      ***
 ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
 ***  TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013.             ***
 ***                                                                                ***
 ***                   COPYRIGHT (C) 1996-2023 BY FEI S.A.S,                        ***
 ***                        BORDEAUX, FRANCE                                        ***
 ***                      ALL RIGHTS RESERVED                                       ***
**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifdef SOQT
#  include <Inventor/Qt/viewers/SoQtFlyViewer.h>
#elif defined _WIN32
#  include <Inventor/Win/viewers/SoWinFlyViewer.h>
#else // _WIN32
 
#ifndef  _SO_XT_FLY_VIEWER_
#define  _SO_XT_FLY_VIEWER_
 
#include <Inventor/Xt/viewers/SoXtConstrainedViewer.h>
#include <Inventor/SbLinear.h>
#include <Inventor/SbTime.h>
#include <Inventor/Gui/viewers/SoGuiFlyViewer.h>
 
class   SoFieldSensor;
 
//
//  Class: SoXtFlyViewer
//
//
//      Keys used by this viewer:
//      -------------------------
//
//  Left Mouse: Click to increase speed.
//  
//  <s> + Left Mouse: Alternative to the Seek button. Press (but do not
//      hold down) the <s> key, then click on a target object.
//  
//  <U>  + Left Mouse: Press (but do not hold down) the <U>  key, then
//      click on a target object to set the "up" direction to the surface normal.
//      By default +y is the "up" direction.
//  
//  Middle Mouse: Click to decrease speed.
//  
//  Left and Middle Mouse: Click boths simultaneously to stop.
//  
//  Ctrl: Hold the key down to temporary stop and rotate the viewpoint.
//  
//  Right Mouse: Open the popup menu.
//  
 
class  SoXtFlyViewer : public SoXtConstrainedViewer 
{
 public:
    
  SoXtFlyViewer( SoWidget parent = NULL, 
                 const char* name = NULL, 
                 SbBool buildInsideParent = TRUE, 
                 SoXtFullViewer::BuildFlag flag = SoXtFullViewer::BUILD_ALL,
                 SoXtViewer::Type type = SoXtViewer::BROWSER );
 
  ~SoXtFlyViewer();
    
  // redefine these to add fly viewer functionality
  virtual void setViewing( SbBool onOrOff );
  virtual void resetToHomePosition();
  virtual void setCamera( SoCamera* cam );
  virtual void setCursorEnabled( SbBool onOrOff );
  virtual void setSeekMode( SbBool onOrOff );
    
  // This is redefined to prevent the camera type from being changed 
  virtual void setCameraType( SoType type );
 
  // set/get minimum speed in word coodinate / second
  // default value is 0, meaning the minimum speed is computed according to scene graph extent
  void setMinSpeed( float speed );
  float getMinSpeed();
 
  // set/get speed multiplier. default value is 1.5
  void setSpeedMultiplier( float speedInc );
  float getSpeedMultiplier();
 
  private:
 
  SoGuiFlyViewer* getGuiFlyViewer() const;
  
  // This constructor takes a boolean whether to build the widget now.
  // Subclasses can pass FALSE, then call SoXtFlyViewer::buildWidget()
  // when they are ready for it to be built.
   private:
    SoXtFlyViewer( SoWidget parent, 
                   const char* name, 
                   SbBool buildInsideParent, 
                   SoXtFullViewer::BuildFlag flag, 
                   SoXtViewer::Type type, 
                   SbBool buildNow,
                   SbBool sync = TRUE );
            
 private:
  // redefine these
  virtual SbString getDefaultWidgetName() const;
  virtual SbString getDefaultTitle() const;
  virtual SbString getDefaultIconTitle() const;
    
  // redefine those routines to do viewer specific stuff
  virtual void processEvent( XAnyEvent* anyevent );
  virtual void actualRedraw();
  virtual void rightWheelMotion( float newVal );
    
  // add viewer preference stuff
  virtual void createPrefSheet();
    
  // Define this to bring the viewer help card
  virtual void openViewerHelpCard();
    
 private:
  // viewer state variables
  Cursor viewerCursor, seekCursor, upCursor;
  SbRotation camStartOrientation;
    
  // preference sheet stuff
  SoWidget createFlyPrefSheetGuts( SoWidget parent );
  static void incPrefSheetButtonCB( SoWidget w, SoXtFlyViewer* v, void* data);
  static void decPrefSheetButtonCB( SoWidget w, SoXtFlyViewer* v, void* data );
    
  void defineCursors();
  void switchMode( int newMode );
  void changeMaxStraightSpeed( SbBool increase );
 
  // this is called by both constructors
  void constructorCommon( SbBool buildNow );
 
  SoGuiFlyViewer* m_guiFlyViewer;
};
 
#endif  /* _SO_XT_FLY_VIEWER_ */
 
#endif // _WIN32