kg-zad1

// CG-Veso.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "CG-Veso.h"

#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst;                                // current instance
TCHAR szTitle[MAX_LOADSTRING];                  // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];
VOID DRAW_TEST(HDC hdc, int ak, int xend, int yend);
int ak = 0;
// the main window class name
// Forward declarations of functions included in this code module:


ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);

int APIENTRY _tWinMain(_In_ HINSTANCE hInstance,
                     _In_opt_ HINSTANCE hPrevInstance,
                     _In_ LPTSTR    lpCmdLine,
                     _In_ int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

    // TODO: Place code here.
    GdiplusStartupInput gdiplusStartupInput;
    ULONG_PTR gdiplusToken;
    GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);

    MSG msg;
    HACCEL hAccelTable;

    // Initialize global strings
    LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadString(hInstance, IDC_CGVESO, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);

    // Perform application initialization:
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_CGVESO));

    // Main message loop:
    while (GetMessage(&msg, NULL, 0, 0))
    {
        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }
    GdiplusShutdown(gdiplusToken);
    return (int) msg.wParam;
}



//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;

    wcex.cbSize = sizeof(WNDCLASSEX);

    wcex.style          = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = WndProc;
    wcex.cbClsExtra     = 0;
    wcex.cbWndExtra     = 0;
    wcex.hInstance      = hInstance;
    wcex.hIcon          = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_CGVESO));
    wcex.hCursor        = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = MAKEINTRESOURCE(IDC_CGVESO);
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

    return RegisterClassEx(&wcex);
}

//
//   FUNCTION: InitInstance(HINSTANCE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   HWND hWnd;

   hInst = hInstance; // Store instance handle in our global variable

   hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND  - process the application menu
//  WM_PAINT    - Paint the main window
//  WM_DESTROY  - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;

    switch (message)
    {
    case WM_RBUTTONDOWN:
    {
                           InvalidateRect(hWnd, NULL, false);
                           ak++;  (ak > 7);
                           ::UpdateWindow(hWnd);
    }
        break;
    case WM_COMMAND:
        wmId    = LOWORD(wParam);
        wmEvent = HIWORD(wParam);
        // Parse the menu selections:
        switch (wmId)
        {
        case IDM_ABOUT:
            DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
            break;
        case IDM_EXIT:
            DestroyWindow(hWnd);
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
        }
        break;

    case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        // TODO: Add any drawing code here...
        RECT rt;
        GetClientRect(hWnd, &rt);
        DRAW_TEST(hdc, ak, (int)rt.right, (int)rt.bottom);
        EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    UNREFERENCED_PARAMETER(lParam);
    switch (message)
    {
    case WM_INITDIALOG:
        return (INT_PTR)TRUE;

    case WM_COMMAND:
        if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
        {
            EndDialog(hDlg, LOWORD(wParam));
            return (INT_PTR)TRUE;
        }
        break;
    }
    return (INT_PTR)FALSE;
}
VOID DRAW_TEST(HDC hdc, int ak, int xend, int yend)
{
    Graphics graphics(hdc); // инициация на графичен обект върху екрана
    Rect ellipseRect(xend / 10, yend / 9, yend / 1.3, yend / 1.3);  //дефиниране на елипса с горен ляв ъгъл
    //на описващия правоъгълник в средата на растера и рамери ¼ растер
    Pen bluePen(Color(255, 0, 0, 255)); // дефиниране на син молив
    Pen redPen(Color(255, 255, 0, 0));// дефиниране на червен молив
    Pen greenPen(Color(255, 0, 128, 0));
    Pen purplePen(Color(255, 128, 0, 128));
    Pen yellowPen(Color(255, 255, 255, 0));
    Pen aquaPen(Color(255, 0, 255, 255));
    Pen blackPen(Color(255, 0, 0, 0));

    graphics.DrawEllipse(&bluePen, ellipseRect); //чертае елипса

    if (ak == 1)
        graphics.DrawLine(&redPen, xend / 3.5, yend / 2, xend / 2.25, yend / 2);//чертае отсечка
    else if (ak == 2)
        graphics.DrawLine(&bluePen, xend / 3.5, yend / 2, xend / 9.9, yend / 2);
    else if (ak == 3)
        graphics.DrawLine(&greenPen, xend / 3.5, yend / 2, xend / 7, yend / 4);
    else if (ak == 4)
        graphics.DrawLine(&purplePen, xend / 3.5, yend / 2, xend / 2.8, yend / 6);
    else if (ak == 5)
        graphics.DrawLine(&yellowPen, xend / 3.5, yend / 2, xend / 4.1, yend / 9);
    else if (ak == 6)
        graphics.DrawLine(&aquaPen, xend / 3.5, yend / 2, xend / 8.8, yend / 2.9);
    else if (ak == 7)
        graphics.DrawLine(&blackPen, xend / 3.5, yend / 2, xend / 2.35, yend / 3);
}