adds pixel position to tracked elements

adds coordinate unit setter to tracked elements

Src/Utility/TrackedComponents/TrackedElement.cpp

@@ -11,8 +11,11 @@ TrackedElement::TrackedElement(QObject *parent, QString name, int id) :
 {
 	_x = 0;
 	_y = 0;
+	_xpx = 0;
+	_xpx = 0;
 	_valid = false;
 	_fixed = false;
+	_coordU = "px";
 }
 
 QString TrackedElement::getName()
@@ -41,6 +44,14 @@ void  TrackedElement::setY(float val) {
 	_y = val;
 };
 
+void  TrackedElement::setXpx(float val) {
+	_xpx = val;
+};
+
+void  TrackedElement::setYpx(float val) {
+	_ypx = val;
+};
+
 float  TrackedElement::getX() {
     return _x;
 }
@@ -50,11 +61,11 @@ float  TrackedElement::getY() {
 }
 
 float  TrackedElement::getXpx() {
-    return _x;
+    return _xpx;
 }
 
 float  TrackedElement::getYpx() {
-    return _y;
+    return _ypx;
 }
 
 void TrackedElement::operate()

Src/Utility/TrackedComponents/TrackedElement.h

@@ -22,14 +22,16 @@ public:
     virtual ~TrackedElement() {};
 
 	virtual QString getName();
-    virtual QString getCoordinateUnit() override { return "px"; };
+    virtual QString getCoordinateUnit() override { return _coordU; };
+    
+    virtual void setCoordinateUnit(QString unit) override { _coordU = unit; };
 
     virtual void  setX(float val) override;
     virtual void  setY(float val) override;
     virtual void  setW(float w) override {};
     virtual void  setH(float h) override {};
-    virtual void  setXpx(float val) override {};
-    virtual void  setYpx(float val) override {};
+    virtual void  setXpx(float val) override;
+    virtual void  setYpx(float val) override;
     virtual void  setWpx(float w) override {};
     virtual void  setHpx(float h) override {};
 	virtual void  setRad(float r) override {};
@@ -99,8 +101,11 @@ private:
     QString _timeString;                         /**< timestamp a formatted as string */
 	float _x;
 	float _y;
+    float _xpx;
+    float _ypx;
 	int _id;
 	bool _valid;
 	bool _fixed;
+    QString _coordU;
 };