ViewManager.h

// View manager
 
//
// This class is part of the Open Inventor Medical utility library.
//
// The medical utility classes are provided as a prebuilt library named
// "fei_inventor_medical", that can be used directly in an Open Inventor
// application. The classes in the prebuilt library are documented and
// supported by Thermo Fisher Scientific. These classes are also provided as source code.
//
// Please see $OIVHOME/include/Medical/InventorMedical.h for the full text.
//
 
#ifndef _VIEW_MANAGER_H_
#define _VIEW_MANAGER_H_
 
#include <Inventor/nodes/SoGroup.h>
#include <Medical/InventorMedical.h>
 
// It's convenient for applications to get this automatically.
#include "SceneView.h"
 
class SoNodeSensor;
class SoHandleEventAction;
class SoPickAction;
 
class INVENTORMEDICAL_API ViewManager : public SoGroup {
 
  SO_NODE_HEADER(ViewManager);
 
public:
 
  static void   initClass();
 
  static void   exitClass();
 
  ViewManager();
 
  void addView( const SceneView* newView );
 
  int getNumViews() const;
 
  SceneView* getView( int index ) const;
 
  SceneView* getView( const SbVec2f& position ) const;
 
  int getViewIndex( const SceneView* view ) const;
 
  int getViewIndex( const SbVec2f& position ) const;
 
  int getLastEventViewIndex() const;
 
  SbVec2f getLastEventPosition() const;
 
  void setViewport( int index, SbVec4f& vport );
 
  void setViewport( int index, float xorig, float yorig, float xsize, float ysize );
 
  void setEventCaptureView( int viewIndex );
 
 private:
 
  virtual void addChild( SoNode* child );
  virtual void insertChild( SoNode *child, int newChildIndex );
  virtual void replaceChild( SoNode* oldChild, SoNode* newChild );
  virtual void replaceChild( int index, SoNode* newChild );
 
private:
  virtual ~ViewManager();
 
  // Actions we handle directly
  virtual void handleEvent( SoHandleEventAction* action );
 
  // Internal state
  int  m_numViews;               // Remember this to check for changes
  unsigned int m_buttonsPressed; // Which buttons are currently pressed?
 
  SbVec2f m_eventPos;            // Position of last event handled
  int     m_eventViewIndex;      // View that handled the last event
  int     m_captureViewIndex;    // View that "owns" the event stream
 
  SoNodeSensor* m_sensor;
  static void sensorCB( void* data, SoSensor* sensor );
};
 
#endif