SoMouseGrabber.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef SO_MOUSE_GRABBER_H
#define SO_MOUSE_GRABBER_H
 
 
 
#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>
 
#include <SoInteractionNode.h>
 
class SoMouseGrabberPointingAction;
 
//=============================================================
 
//=============================================================
class SoMouseGrabber : public SoInteractionNode
{
 
   SO_NODE_HEADER(SoMouseGrabber);
 
 public:
   SoMouseGrabber();
 
   static void    initClass();
 
 
   SoSFBool  on;
 
   SoSFBool  useManagedInteraction;
 
   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;
 
 
   void onChanged(SoField* field);
 
   void handleEvent(SoHandleEventAction *action) override;
 
   void GLRender(SoGLRenderAction * /* action */) override {};
 
   bool affectsState() const override { return false; }
 
 protected:
   ~SoMouseGrabber() override;
 
 private:
   friend class SoMouseGrabberPointingAction;
 
   void trackMouse(SbVec2s pos, SbVec2f localPos, const SbViewportRegion& vp, bool initial);
 
   void updatePointingAction(SoField*);
 
 
   bool testState(int state, SbBool flag);
 
   SoMouseGrabberPointingAction* _pointingAction;
 
   SbBool  _maskValid;
   SbVec2s _lastPos;
   SbBool  _buttonState[3];
 
   int     _lastButtonPressed;
 
   unsigned _prevWheelCode;
   int     _sumWheel;
};
 
#endif