Medical/nodes/ViewManager.h

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// View manager
//
// Mike Heck, FEI/VSG, November 2016

//
// 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 FEI. 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

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Open Inventor Toolkit reference manual, generated on 15 Mar 2023
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