MeVisLab/Standard/Sources/Inventor/SoUtils/SoMouseGrabber.h

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#ifndef __SoMouseGrabber_H
#define __SoMouseGrabber_H

//----------------------------------------------------------------------------------
// **InsertLicense** code
//----------------------------------------------------------------------------------

//----------------------------------------------------------------------------------

#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/fields/SoSFTrigger.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/events/SoMouseButtonEvent.h>
#include <Inventor/sensors/SoFieldSensor.h>

//=============================================================

//=============================================================
class SoMouseGrabber : public SoNode {

   SO_NODE_HEADER(SoMouseGrabber);

 public:
   SoMouseGrabber();

   static void    initClass();


   SoSFBool  on;

   SoSFBool  normalized;
   SoSFBool clamp;

   SoSFFloat x;
   SoSFFloat y;

   SoSFFloat absX;
   SoSFFloat absY;

   SoSFBool cursorPresent;
   
   SoSFFloat xmin;
   SoSFFloat xmax;
   SoSFFloat ymin;
   SoSFFloat ymax;

   SoSFBool  flipX;
   SoSFBool  flipY;
   SoSFBool  swapXY;
   SoSFFloat sensitivity;

   SoSFEnum  button1;
   SoSFEnum  button2;
   SoSFEnum  button3;
   SoSFEnum  shift;
   SoSFEnum  ctrl;
   SoSFEnum  alt;

   SoSFEnum  cursorShape;



   SoSFBool  shiftPressed;
   SoSFBool  ctrlPressed;
   SoSFBool  altPressed;
   SoSFBool  button1Pressed;
   SoSFBool  button2Pressed;
   SoSFBool  button3Pressed;

   SoSFTrigger button1DoubleClicked;
   SoSFTrigger button2DoubleClicked;
   SoSFTrigger button3DoubleClicked;

   SoSFTrigger released;

   SoSFBool  maskValid;

   SoSFBool setEventHandled;

   SoSFBool setWheelEventHandled;
  


   SoSFFloat   wheel;
   SoSFFloat   wheelMin;
   SoSFFloat   wheelMax;
   SoSFFloat   wheelStep;

   SoSFTrigger wheelUp;
   SoSFTrigger wheelDown;

   SoSFBool    wheelOverflow;



   //>//! Called when field \c cursorShape changed
   //>void cursorShapeChanged(SoFieldSensor* sensor);
   //>//! forward CB when field \c cursorShape changed
   //>static void cursorShapeChangedCB(void *data, SoSensor* sens);

   virtual void handleEvent(SoHandleEventAction *action);

   virtual void GLRender(SoGLRenderAction * /* action */) {};

 protected:
   virtual ~SoMouseGrabber();

 private:


   bool testState(int state, SbBool flag);

   SbBool  _maskValid;
   SbVec2s _lastPos;
   SbBool  _buttonState[3];

   SbVec2s _lastClickPos;
   SbTime  _lastClickTime;
   int     _lastButtonPressed;
  
   unsigned _prevWheelCode;
   int     _sumWheel;

   //>//! sensor for changes of \c cursorShape
   //>SoFieldSensor* _cursorShapeSensor;

   //>//! required to set the cursor if \c cursorShapeChanged is called
   //>SoState* _state;
};

#endif