//--------------------------------------------------
// Panoramic is an interface for the visualization of panoramas capable of
// handling wide fields of view, based on Möbius transformations.
// Copyright (C) 2015 Luis Peñaranda, Luiz Velho and Leonardo Sacht.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see .
//--------------------------------------------------
#ifndef OPENGLCANVAS_H
#define OPENGLCANVAS_H
#include "glincludes.h"
#include
#include
#include
#include
#include
#include "chronos.h"
#include "image_read.h"
class OpenGLCanvas:
public QGLWidget,
public FileRead
{
Q_OBJECT
public:
explicit OpenGLCanvas(QWidget *parent = 0);
protected:
void read_config_file();
void load_image(const char *new_image);
void initializeGL();
void resizeGL(int w, int h);
void paintGL();
void define_texture_coordinates(float *texCoord, int m, int n, float min_phi, float max_phi, float min_lambda, float max_lambda);
void vertex_transformation(float *positions, int m, int n, float center_lambda, float center_phi, float fov_rads, float scale);
void load_sphere_mesh(float *positions, int m, int n);
float calculate_extent(float fov_rads);
void define_triangle_indices(unsigned int * indices, int m, int n);
private:
int compute_auto_fov_max(int);
void compute_scale();
char *textFileRead(char *fn);
void setShaders();
void mousePressEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void wheelEvent(QWheelEvent *event);
signals:
void fps(QString newFPS);
void fov_changed(int new_fov);
void max_fov_changed(int new_max_fov);
public slots:
void automaxbutton(bool);
void shrinkallbutton(bool);
void change_fov(double f);
void change_fov(int new_fov);
void change_fov_max(int new_fov_max);
#ifdef PANO_EXTENDED_CONTROLS
void change_p_d(int new_p_d);
void change_zb_lambda(int new_zb_lambda);
void change_zb_R(int new_zb_R);
#endif // PANO_EXTENDED_CONTROLS
// void change_scale(double s);
void change_center_lambda(double lambda);
void change_center_phi(double phi);
void re_center();
void change_fov_scale_relation(QString name);
void change_visualization(QString name);
void change_input_image();
void slotTimer();
private:
enum FileType get_file_type(const char*);
double fov;
double fov_max; // the \phi_{max} on the technote
double scale;
double center_lambda;
double center_phi;
QString fov_scale_relation;
QString visualization;
bool auto_fov_max;
bool shrink_for_all;
#ifdef PANO_EXTENDED_CONTROLS
float pd; // parameter of the Pannini projection
float zblambda,zbR; // parameters of the Zorin-Barr transformation
#endif // PANO_EXTENDED_CONTROLS
Chronos time_time;
QTimer time_timer;
int time_frames;
double time_start;
double time_fps;
unsigned int numberOfIndices;
unsigned int * triangleIndices;
float * verticesPositions;
float * textureCoordinates;
//float windowWidth;
//float windowHeight;
char* shader_dir;
char* input_image_file;
char* input_image_dir;
// input image size
int image_size_x;
int image_size_y;
QPoint lastPos; // mouse click position
};
#endif // OPENGLCANVAS_H