/* Copyright (C) 2013 Karl Phillip Buhr <karlphillip@gmail.com>
 *
 * This work is licensed under the Creative Commons Attribution-ShareAlike License.
 * To view a copy of this license, visit:
 *      https://creativecommons.org/licenses/by-sa/2.5/legalcode
 *
 * Or to read the human-readable summary of the license:
 *      https://creativecommons.org/licenses/by-sa/2.5/
 */
#pragma once
#ifndef GLWINDGET_H
#define GLWINDGET_H

//Qt libs
#include <QGLWidget>
#include <QImage>
#include <QTime>
#include <QString>
#include "ocean.h"

class GLWidget : public QGLWidget
{
    Q_OBJECT
public:
    explicit GLWidget(QWidget* parent = 0);
    virtual ~GLWidget();

    /* OpenGL initialization, viewport resizing, and painting */

    void initializeGL();
    void paintGL();
    void resizeGL( int width, int height);

    void keyPressEvent(QKeyEvent *event);
    void wheelEvent(QWheelEvent *event);
    void mousePressEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);

    /* Helper functions */
    void setXRotation(int angle);
    void setYRotation(int angle);
    void setZRotation(int angle);

    void _view_ortho();
    void _view_perspective();
    static void repereScene3D(float l);
    static void affiche_sol();
    void _draw_text(double x, double y, double z, QString txt);
private:

    int _width;
    int _height;
    QString framedir, spectredir;
    QImage qt_frame;
    QPoint last_pos;
    double x_trans,y_trans,z_trans, distance;
    double x_cam_eye, y_cam_eye, z_cam_eye,
    x_cam_center, y_cam_center, z_cam_center,
    x_cam_up, y_cam_up, z_cam_up;
    bool activeZrotate;
    double x_rot,y_rot,z_rot;

    Ocean o1;
    int _fps;
    GLuint  _texture;
    QTime now;
protected slots:
    void _tick();
};
#endif