use class for camera handling,

orbit does not work. Need to figure out why

QtMeshViewer/Header/OglViewerWidget.h

@@ -5,6 +5,7 @@
 #include <QMatrix4x4>
 #include "GeometryEngine.h"
 #include "SettingsWindow.h"
+#include "CameraInterface.h"
 
 
 class GeometryEngine;
@@ -37,25 +38,16 @@ private:
 		bool headlight = false;
 	} m_light;
 
-	SettingsWindow* m_settings;
-
 	struct {
 		bool left = false;
 		bool right = false;
 		QVector2D position;
 	} m_mouse;
 
-	struct {
-		bool x = true;
-		bool y = true;
-		bool z = true;
-	} m_rotDirections;
-
 	QMatrix4x4 m_projection;
-	QVector3D m_translation;
-	QQuaternion m_rotation;
+	CameraInterface* m_camera;
 
-	double m_zSpeed = 1.0;
+	SettingsWindow* m_settings;
 
 // functions
 private:
@@ -81,10 +73,13 @@ protected:
 // slots
 public slots:
 	void loadFile(QString name);
-	void toggleAxis(int axis);
+	void useFreeCamera();
+	void useOrbitCamera();
+	void useMoveCamera();
 	void toggleWireframe();
 	void toggleLight();
 	void showSettings();
+
 	void setBGColorOff(QVector3D value);
 	void setBGColorOn(QVector3D value);
 	void setLightColor(QVector3D value);
@@ -92,7 +87,6 @@ public slots:
 	void setAmbCoef(double value);
 	void setHeadlight(bool value);
 	void setBackfaceCulling(bool value);
-	void setZoomSpeed(int percent);
 
 };