#include<GL/glut.h>
#include <cstdlib>
#include <iostream>
#include <cmath>

using namespace std;

void display() {
}

void myinit() {
}

void specialkeypress(int c, int x, int y) {
     switch (c) {
        case  GLUT_KEY_F1: cout << "F1" ; break;
        case  GLUT_KEY_F2: cout << "F2" ; break;
        case  GLUT_KEY_F3: cout << "F3" ; break;
        case  GLUT_KEY_F4: cout << "F4" ; break;
        case  GLUT_KEY_F5: cout << "F5" ; break;
        case  GLUT_KEY_F6: cout << "F6" ; break;
        case  GLUT_KEY_F7: cout << "F7" ; break;
        case  GLUT_KEY_F8: cout << "F8" ; break;
        case  GLUT_KEY_F9: cout << "F9" ; break;
        case  GLUT_KEY_F10: cout << "F10" ; break;
        case  GLUT_KEY_F11: cout << "F11" ; break;
        case  GLUT_KEY_F12: cout << "F12" ; break;
	case  GLUT_KEY_LEFT: cout << "Left"; break;
	case  GLUT_KEY_RIGHT: cout << "Right"; break;
	case  GLUT_KEY_UP: cout << "Up"; break;
	case  GLUT_KEY_DOWN: cout << "Down"; break;
	case  GLUT_KEY_PAGE_UP: cout << "Page up"; break;
	case  GLUT_KEY_PAGE_DOWN: cout << "Page down"; break;
	case  GLUT_KEY_HOME: cout << "Home"; break;
	case  GLUT_KEY_END: cout << "End"; break;
	case  GLUT_KEY_INSERT: cout << "Insert"; break;
     }
     cout << " pressed at (" <<   x << ", " << y << ")" << endl;
}

void keypress(unsigned char c, int x, int y) {
     int mods;

     cout << c << " pressed at (" <<   x << ", " << y << ")" << endl;
   
     mods = glutGetModifiers();

     if(mods & GLUT_ACTIVE_SHIFT) {
        cout << "\tThe shift  key was pressed."<< endl;
     }
     if(mods & GLUT_ACTIVE_CTRL) {
        cout << "\tThe control  key was pressed."<< endl;
     }
     if(mods & GLUT_ACTIVE_ALT) {
        cout << "\tThe alt key was pressed."<< endl;
     }
     
     switch (c) {
        case 'q': exit(0);
     }
     glutPostRedisplay();
}

void mouse(int button, int state, int x, int y) {
    
    switch (button) {
       case GLUT_LEFT_BUTTON:   cout << "Left button   ";  break;
       case GLUT_MIDDLE_BUTTON: cout << "Middle button ";  break;
       case GLUT_RIGHT_BUTTON:  cout << "Right button  ";  break;
    }

    switch(state) {
       case GLUT_DOWN : cout << "Pushed down "; break;
       case GLUT_UP :   cout << "Let up      "; break;
    }
    cout << "At (" << x << ", " << y <<")" << endl;
}

void mouseEntry(int state) {
    if(state == GLUT_LEFT) {
       cout << "The mouse just left the window " << endl;
    }
    if (state == GLUT_ENTERED) {
       cout << "The mouse just entered the window  " << endl;
    }
}

void mouseMotion(int x, int y) {
    cout << "Button down motion at ("<<x << ", " << y << ")" << endl;
}

void mousePassiveMotion(int x, int y) {
    cout << "Non-button down motion at ("<<x << ", " << y << ")" << endl;
}

int main (int argc, char ** argv) {

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
    glutInitWindowSize(500,500);
    glutCreateWindow("GULT Mouse Demo");
    glutDisplayFunc(display);

    glutKeyboardFunc(keypress);
    glutSpecialFunc(specialkeypress);

    glutEntryFunc(mouseEntry);
    glutMouseFunc(mouse);
    glutMotionFunc(mouseMotion);
    glutPassiveMotionFunc(mousePassiveMotion);

    myinit();
    glutMainLoop();
}