main.cpp

/*
Name    : Neimat Soliman Ismail
ID      : 20180315
Group   : 3CS-S2
TASK 3
*/

#if defined(UNICODE) && !defined(_UNICODE)
#define _UNICODE
#elif defined(_UNICODE) && !defined(UNICODE)
#define UNICODE
#endif

#include <tchar.h>
#include <windows.h>
#include<math.h>

/*  Declare Windows procedure  */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);

/*  Make the class name into a global variable  */
TCHAR szClassName[ ] = _T("CodeBlocksWindowsApp");

int WINAPI WinMain (HINSTANCE hThisInstance,
                    HINSTANCE hPrevInstance,
                    LPSTR lpszArgument,
                    int nCmdShow)
{
    HWND hwnd;               /* This is the handle for our window */
    MSG messages;            /* Here messages to the application are saved */
    WNDCLASSEX wincl;        /* Data structure for the windowclass */

    /* The Window structure */
    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szClassName;
    wincl.lpfnWndProc = WindowProcedure;      /* This function is called by windows */
    wincl.style = CS_DBLCLKS;                 /* Catch double-clicks */
    wincl.cbSize = sizeof (WNDCLASSEX);

    /* Use default icon and mouse-pointer */
    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;                 /* No menu */
    wincl.cbClsExtra = 0;                      /* No extra bytes after the window class */
    wincl.cbWndExtra = 0;                      /* structure or the window instance */
    /* Use Windows's default colour as the background of the window */
    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;

    /* Register the window class, and if it fails quit the program */
    if (!RegisterClassEx (&wincl))
        return 0;

    /* The class is registered, let's create the program*/
    hwnd = CreateWindowEx (
            0,                   /* Extended possibilites for variation */
            szClassName,         /* Classname */
            _T("TASK 3 - 3CS-S2 20180315 Neimat Soliman"),       /* Title Text */
            WS_OVERLAPPEDWINDOW, /* default window */
            CW_USEDEFAULT,       /* Windows decides the position */
            CW_USEDEFAULT,       /* where the window ends up on the screen */
            544,                 /* The programs width */
            375,                 /* and height in pixels */
            HWND_DESKTOP,        /* The window is a child-window to desktop */
            NULL,                /* No menu */
            hThisInstance,       /* Program Instance handler */
            NULL                 /* No Window Creation data */
    );

    /* Make the window visible on the screen */
    ShowWindow (hwnd, nCmdShow);

    /* Run the message loop. It will run until GetMessage() returns 0 */
    while (GetMessage (&messages, NULL, 0, 0))
    {
        /* Translate virtual-key messages into character messages */
        TranslateMessage(&messages);
        /* Send message to WindowProcedure */
        DispatchMessage(&messages);
    }

    /* The program return-value is 0 - The value that PostQuitMessage() gave */
    return messages.wParam;
}

/*  This function is called by the Windows function DispatchMessage()  */


void parametricLineRED(HDC hdc ,int x11, int y11 ,int x22 , int y22){
    double dx = x22-x11;
    double dy =y22-y11;
    for(double t=0;t<1;t+=0.001){
        int x=x11+(t*dx);
        int y=y11+(t*dy);
        SetPixel(hdc,x,y,RGB(255, 0, 0));
    }
}
void parametricLineGREEN(HDC hdc ,int x11, int y11 ,int x22 , int y22){
    double dx = x22-x11;
    double dy =y22-y11;
    for(double t=0;t<1;t+=0.001){
        int x=x11+(t*dx);
        int y=y11+(t*dy);
        SetPixel(hdc,x,y,RGB(65, 238, 42));
    }
}
void parametricLineBLUE(HDC hdc ,int x11, int y11 ,int x22 , int y22){
    double dx = x22-x11;
    double dy =y22-y11;
    for(double t=0;t<1;t+=0.001){
        int x=x11+(t*dx);
        int y=y11+(t*dy);
        SetPixel(hdc,x,y,RGB(42, 94, 238));
    }
}
void parametricLineYELLOW(HDC hdc ,int x11, int y11 ,int x22 , int y22){
    double dx = x22-x11;
    double dy =y22-y11;
    for(double t=0;t<1;t+=0.001){
        int x=x11+(t*dx);
        int y=y11+(t*dy);
        SetPixel(hdc,x,y,RGB(238, 225, 42));
    }
}
void parametricLinePINK(HDC hdc ,int x11, int y11 ,int x22 , int y22){
    double dx = x22-x11;
    double dy =y22-y11;
    for(double t=0;t<1;t+=0.001){
        int x=x11+(t*dx);
        int y=y11+(t*dy);
        SetPixel(hdc,x,y,RGB(238, 208, 223));
    }
}
void parametricLineAQUA(HDC hdc ,int x11, int y11 ,int x22 , int y22){
    double dx = x22-x11;
    double dy =y22-y11;
    for(double t=0;t<1;t+=0.001){
        int x=x11+(t*dx);
        int y=y11+(t*dy);
        SetPixel(hdc,x,y,RGB(42, 238, 238));
    }
}
void parametricLineORANGE(HDC hdc ,int x11, int y11 ,int x22 , int y22){
    double dx = x22-x11;
    double dy =y22-y11;
    for(double t=0;t<1;t+=0.001){
        int x=x11+(t*dx);
        int y=y11+(t*dy);
        SetPixel(hdc,x,y,RGB(236, 85, 15));
    }
}
void parametricLineWHITE(HDC hdc ,int x11, int y11 ,int x22 , int y22){
    double dx = x22-x11;
    double dy =y22-y11;
    for(double t=0;t<1;t+=0.001){
        int x=x11+(t*dx);
        int y=y11+(t*dy);
        SetPixel(hdc,x,y,RGB(253, 250, 251));
    }
}
void draweight(HDC hdc,int x,int y,int xc,int yc){
    SetPixel(hdc,xc+x,yc+y,RGB(255, 255, 255));

    SetPixel(hdc,xc-x,yc+y,RGB(255, 255, 255));

    SetPixel(hdc,xc+x,yc-y,RGB(255, 255, 255));

    SetPixel(hdc,xc-x,yc-y,RGB(255, 255, 255));

    SetPixel(hdc,xc-y,yc+x,RGB(255, 255, 255));

    SetPixel(hdc,xc+y,yc-x,RGB(255, 255, 255));

    SetPixel(hdc,xc+y,yc+x,RGB(255, 255, 255));

    SetPixel(hdc,xc-y,yc-x,RGB(255, 255, 255));
}
void  draweightColor(HDC hdc,int x,int y,int xc,int yc){
    parametricLineRED(hdc,xc+x,yc+y,xc,yc);
    parametricLineYELLOW(hdc,xc-y,yc-x,xc,yc);
    parametricLineWHITE(hdc,xc+y,yc+x,xc,yc);
    parametricLineAQUA(hdc,xc+y,yc-x,xc,yc);
    parametricLineORANGE(hdc,xc-y,yc+x,xc,yc);
    parametricLinePINK(hdc,xc-x,yc-y,xc,yc);
    parametricLineBLUE(hdc,xc+x,yc-y,xc,yc);
    parametricLineGREEN(hdc,xc-x,yc+y,xc,yc);

}
void midpoint(HDC hdc,int xc,int yc,int r){
    int x=0;
    int y=r;
    double d=1-r;
    while(x<y){
        draweightColor(hdc,x,y,xc,yc);
        if(d<=0){
            d=d+2*x+3;
            x++;
        }
        else{
            d=d+2*(x-y)+5;
            x++;
            y--;
        }
        draweight(hdc,x,y,xc,yc);


    }
}

int rr,x_c,y_c,x_2,y_2;
int x11,x22,y11,y22;

/*  This function is called by the Windows function DispatchMessage()  */

LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    HDC hdc=GetDC(hwnd);
    switch (message)                  /* handle the messages */
    {
        case WM_LBUTTONDBLCLK:
            x_c=LOWORD(lParam);
            y_c=HIWORD(lParam);
            break;
        case WM_RBUTTONDBLCLK:
            x_2=LOWORD(lParam);
            y_2=HIWORD(lParam);
            rr=sqrt(pow((x_2-x_c),2)+pow((y_2-y_c),2));
            midpoint(hdc,x_c,y_c,rr);
            break;
        case WM_DESTROY:
            PostQuitMessage (0);       /* send a WM_QUIT to the message queue */
            break;
        default:                      /* for messages that we don't deal with */
            return DefWindowProc (hwnd, message, wParam, lParam);
    }

    return 0;
}