GUI/main/main.cpp

#include <iostream>
#include <Fl/Fl.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Window.H>
#include <FL/fl_draw.H>



#define window_height 600
#define window_width 800

/*****************************************************************************/
/* This class provides a view to copy the offscreen surface to */

int color_map[window_width][window_height];
class My_Window : public Fl_Window{
    int x,y,button;
    int handle(int e)
    {

        switch (e)
        {
            case FL_MOVE:
                x = Fl::event_x();
                y = Fl::event_y();
                std::cout<<"Postion X:"<< x <<" Postion Y:"<< y <<std::endl;
                return 1;
            case FL_KEYBOARD:
                button = Fl::event_button();
                std::cout<<"Keyboard:"<< (unsigned short)button <<std::endl;
                return 1;
        }

    }

public:
    My_Window(int x, int y, const char *l ) : Fl_Window(x,y,l){};
};

class Pixel : public Fl_Widget {
    Fl_Color color;
    void draw(){
        fl_draw_box(static_cast<Fl_Boxtype>(1), x(), y(), w(), h(), color);
    }

public:
    Pixel(int x,int y,int w,int h,int RGB) :
            Fl_Widget(x,y,w,h,0) {
        this->color = fl_rgb_color((uchar)((RGB&0xff000000)>>24),(uchar)((RGB&0xff0000)>>16),(uchar)((RGB&0xff00)>>8));
    }
};

int main(int argc, char **argv) {
    for(int i=0;i<100;i++){
        for (int j = 0; j < 100 ; j++) {
            color_map[i][j]=0xff000000;
        }
    }
    My_Window* window = new My_Window(window_width, window_height, "example");
    window->begin();
    for(int i=0;i<100;i++){
        for (int j = 0; j < 100 ; j++) {
            new Pixel(i,j,1,1,color_map[i][j]);
        }
    }
    window->end();
    window->show(argc,argv);
    return Fl::run();
} // main