Inventor/Qt/devices/SoQtDevice.h

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/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
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 ***                   COPYRIGHT (C) 1996-2020 BY FEI S.A.S,                        ***
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**=======================================================================*/
/*=======================================================================
** Author      : David Mott (MMM yyyy)
** Modified by : Gavin Bell (MMM yyyy)
**=======================================================================*/


#ifndef  _SO_QT_DEVICE_
#define  _SO_QT_DEVICE_
#include <Inventor/Qt/OivQtCompat.h>
#include <Inventor/SbLinear.h>
#include <Inventor/events/SoEvent.h>

#include <QObject>
# include <QEvent>
#include <QScreen>
#include <QApplication>
#include <QWindow>
#include <Inventor/Qt/SoQtDef.h>
#include <Inventor/Qt/SoQtComponent.h>


// Stuff for SoQtMouse/Keyboard
#define   EventMask int
#ifdef _WIN32
#define   ButtonPressMask   0x01
#define   ButtonReleaseMask 0x02
#define   PointerMotionMask 0x04
#define   ButtonMotionMask  0x08
#define   KeyPressMask      0x10
#define   KeyReleaseMask    0x20
#define   EnterWindowMask   0x40
#define   LeaveWindowMask   0x80
#elif defined __APPLE__
#define   ButtonPressMask   0x01
#define   ButtonReleaseMask 0x02
#define   PointerMotionMask 0x04
#define   ButtonMotionMask  0x08
#define   KeyPressMask      0x10
#define   KeyReleaseMask    0x20
#define   EnterWindowMask   0x40
#define   LeaveWindowMask   0x80        
#else
#define NoEventMask         0L
#define KeyPressMask            (1L<<0)  
#define KeyReleaseMask          (1L<<1)  
#define ButtonPressMask         (1L<<2)  
#define ButtonReleaseMask       (1L<<3)  
#define EnterWindowMask         (1L<<4)  
#define LeaveWindowMask         (1L<<5)  
#define PointerMotionMask       (1L<<6)  
#define PointerMotionHintMask       (1L<<7)  
#define Button1MotionMask       (1L<<8)  
#define Button2MotionMask       (1L<<9)  
#define Button3MotionMask       (1L<<10) 
#define Button4MotionMask       (1L<<11) 
#define Button5MotionMask       (1L<<12) 
#define ButtonMotionMask        (1L<<13)
#endif

class QEvent;

class  SoQtDevice : public QObject{

  Q_OBJECT

    //typedef void* QtPointer;
    //typedef void* QtEventHandler;

    public:
  virtual void        enable(QWidget *w, XtEventHandler f, XtPointer data, void* unused=NULL) = 0;
  virtual void        disable(QWidget *w, XtEventHandler f, XtPointer data) = 0;
    
  virtual const SoEvent * translateEvent(QEvent *event) = 0;

  inline void                setWindowSize(const SbVec2s &s);
  const SbVec2s &     getWindowSize() const           { return winSize; }

 private:
   inline void         setEventPosition(SoEvent *event, float x, float y) const;
    
  //because qt doesn't give us the widget of an event we have to keep track on it
  //and set it with enable and disable
  QWidget * deviceWidget;

 private:
  SbVec2s             winSize;    // size of the window this device works in, in pixels

};

// Inline functions
void
SoQtDevice::setEventPosition(SoEvent *event, float x, float y) const
{
  // Fix for retina display: Retina use to put several pixels per point, so render area size must be resized according
  // to devicePixelRatio().
  // x and y are given in point space (see http://doc.qt.io/qt-5/highdpi.html for details)
  // we have to convert them in pixel space
  float ratio = 1.0f;
  if ( deviceWidget != NULL )
    ratio = deviceWidget->nativeParentWidget()->windowHandle()->devicePixelRatio();

  event->setPosition(SbVec2f(ratio*x, (((float)winSize[1]) - 1.f) - ratio*y));
}

void
SoQtDevice::setWindowSize(const SbVec2s &s)
{ 
  winSize = s;
}

#endif /* _SO_QT_DEVICE_ */

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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