CameraController.h

#ifndef _CAMERACONTROLLER_H_
#define _CAMERACONTROLLER_H_

#include "Camera.h"
#include "InputHandler.h"
#include <glm/glm.hpp>


class CameraController
{
public:
    CameraController(Camera* camera, InputHandler* inputHandler);

    void startOrbit();
    void stopOrbit();
    void zoomBy(int zoom);
    void update(double frameLength);
    void setPivot(const glm::vec3& pivot);

    bool isActive() const;

private:

    enum CCState
    {
        IDLE,
        ORBIT
    };

    InputHandler* _inputHandler;
    Camera* _camera;
    glm::vec3 _pivot;
    glm::vec3 _position;

    glm::vec3 _startPosition;
    int _startMousePosX, _startMousePosY;
    int _lastMouseWheel;

    CCState _state;
};

#endif